CN209909876U

CN209909876U - Improved steam boiler

Info

Publication number: CN209909876U
Application number: CN201920307485.7U
Authority: CN
Inventors: 杨君
Original assignee: Tianjin Nuan Ruchun Heating Equipment Manufacturing Co Ltd
Current assignee: Tianjin Nuan Ruchun Heating Equipment Manufacturing Co Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-01-07
Anticipated expiration: 2029-03-12

Abstract

The utility model provides an improved generation steam boiler, including steam boiler shell, supporting shoe, gas case, outlet duct, gas supply pipe, but the snakelike tubular construction of decompression steam, but spraying cooling heat dissipation tubular construction, rotatable circulating plate structure that admits air, hexagon head bolt, steam output tube, the switch of intaking, connecting pipe, working shaft, inlet tube and fixed water supply seat. The arrangement of the snake-shaped steam pipe, the L-shaped pressure reducing pipe and the manual valve is beneficial to rotating the manual valve, so that steam in the snake-shaped steam pipe is sprayed out through the L-shaped pressure reducing pipe to reduce the pressure of the snake-shaped steam pipe; the arrangement of the cooling pipe, the water supply pipe and the spraying pipe is favorable for sprinkling water to the surfaces of the fixed heating box and the snakelike steam pipe for cooling, and is convenient for maintenance and overhaul; the detachable fixing plate and the wing-shaped bolt are arranged, so that the detachable fixing plate is favorably detached, and the maintenance and overhaul work of equipment inside the steam boiler shell is facilitated.

Description

Improved steam boiler

Technical Field

The utility model belongs to the technical field of boiler equipment, especially, relate to an improved generation steam boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler is in the forms of chemical energy in fuel, electric energy, heat energy of high-temperature flue gas and the like, and steam, high-temperature water or an organic heat carrier with certain heat energy is output outwards after conversion by the boiler. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator, and the steam power device is divided into a steam boiler, a hot water boiler and the like.

However, the existing steam boiler also has the problems of inconvenience in steam pipe pressure reduction, water spraying and heat dissipation and air circulation.

Therefore, it is necessary to develop an improved steam boiler.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an improved generation steam boiler to there is inconvenient steam pipe decompression work of carrying on in solving current steam boiler, inconvenient water spray heat dissipation work and the inconvenient problem of carrying on air cycle of carrying on. An improved steam boiler comprises a steam boiler shell, supporting blocks, a gas tank, a gas outlet pipe, a gas supply pipe, a pressure-reducing steam serpentine pipe structure, a spraying cooling heat dissipation pipe structure, a rotatable gas inlet circulating plate structure, hexagonal bolts, a steam output pipe, a water inlet switch, a connecting pipe, a water supply pump, a water inlet pipe and a fixed water supply seat, wherein the supporting blocks are respectively bolted on the left side and the right side of the lower end of the steam boiler shell; the gas tank is connected to the bottom end of the interior of the steam boiler shell through bolts; the gas outlet pipe is sequentially welded at the upper end of the gas tank from left to right; the gas supply pipe penetrates through the lower part of the left side of the steam boiler shell and is welded on the lower part of the left side of the gas tank; the pressure-reducing steam coiled pipe structure is arranged at the top end of the interior of the steam boiler shell; the spraying cooling heat radiation pipe structure is arranged in the middle of the upper end of the steam boiler shell; the rotatable air inlet circulating plate structure is arranged at the lower part of the right side of the steam boiler shell; the hexagonal bolts penetrate through the left side and the right side of the upper end of the steam boiler shell respectively and are in threaded connection with the coiled pipe structure of the pressure-reducing steam; the steam output pipe penetrates through the right side of the upper end of the steam boiler shell; the water inlet switch screw is connected to the upper part of the left side of the steam boiler shell; the connecting pipe penetrates through the middle position inside the left side of the steam boiler shell; the water supply pump is connected to the middle position of the upper end of the fixed water supply seat through a bolt; the left end of the connecting pipe is in threaded connection with the upper part of the right side of the water supply pump; the right end of the water inlet pipe is in threaded connection with the upper part of the left side of the water supply pump; the right end of the fixed water supply seat is welded at the middle position of the left side of the steam boiler shell; the pressure-reducing steam coiled pipe structure comprises a fixed heating box, connecting blocks, a splicing pipe, a coiled steam pipe, an L-shaped pressure-reducing pipe and a manual valve, wherein the connecting blocks are respectively welded on the left side and the right side of the upper end of the fixed heating box; the splicing pipes are respectively welded at the left side and the right side of the top end inside the fixed heating box; the upper end of the snake-shaped steam pipe penetrates through the insertion pipe; the left side of the lower end of the L-shaped pressure reducing pipe is welded at the lower part of the right side of the snake-shaped steam pipe; the manual valve is inserted in the middle of the upper end of the L-shaped pressure reducing pipe in a threaded manner.

Preferably, the cooling radiating pipe structure capable of spraying and cooling comprises a cooling pipe, a water supply pipe, a spraying pipe, a partition plate, a stainless steel mesh and a rubber plug, wherein the water supply pipe penetrates through the left side inside the cooling pipe; the lower end of the water supply pipe is welded at the middle position of the upper end of the spray pipe; the partition plate is welded at the middle position inside the cooling pipe; one end of the stainless steel net is connected to the middle position of the left side of the partition plate through a screw; the other end of the stainless steel net is connected with the middle position of the right inner wall of the cooling pipe through a screw; the rubber plug is inserted at the right side of the upper end of the cooling pipe.

Preferably, the rotatable air inlet circulating plate structure comprises a detachable fixing plate, a wing bolt, a ventilation circulating pipe, an air inlet pipe, a connecting plate and a miniature direct current fan, wherein the wing bolt penetrates through the middle position inside the upper end of the detachable fixing plate; the ventilation circulating pipe sequentially penetrates through the detachable fixing plate from top to bottom; the air inlet pipe is welded in the middle of the inner part of the lower end of the detachable fixed plate; the connecting plates are respectively welded on the right side of the top end of the inner wall of the air inlet pipe and the right side of the bottom end of the inner wall; the miniature direct current fan is connected between the connecting plates through bolts.

Preferably, the hexagonal head bolts are respectively in threaded connection with the middle position inside the upper end of the connecting block; the left side of the lower end of the L-shaped pressure reducing pipe penetrates through the middle position of the right side of the steam boiler shell; the right end of the connecting pipe is in threaded connection with the inner wall of the left end of the snakelike steam pipe; the steam output pipe is welded at the upper part of the right side of the snakelike steam pipe.

Preferably, the snakelike steam pipe is a snakelike stainless steel pipe; the fixed heating box adopts a stainless steel box with through holes at two ends.

Preferably, the gas tank is communicated with the gas outlet pipe; the gas tank is communicated with the gas supply pipe.

Preferably, the spraying pipe is a stainless steel pipe with a through hole at the lower end; the water supply pipe is communicated with the spraying pipe; the rubber buffer and the nylon rope of the cooling pipe are connected.

Preferably, the cooling pipe is welded in the middle of the upper end of the steam boiler shell; the spray pipe is arranged in the middle of the top end in the steam boiler shell; the cooling pipe is communicated with the steam boiler shell.

Preferably, the ventilation circulating pipe is welded with the detachable fixing plate; the air inlet pipe penetrates through the middle position inside the lower end of the detachable fixing plate.

Preferably, the wing bolt is screwed at the lower part of the right side of the steam boiler shell.

Preferably, the water inlet switch is a self-reset button switch with the model number of LA38-11 BN; the water supply pump is the MHIL203 water supply pump.

Preferably, the micro dc fan is a 8025 dc fan with a switch.

Preferably, the water inlet switch is electrically connected with the water supply pump.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, snakelike steam pipe, the setting of L type decompression pipe and manual valve is favorable to rotating manual valve, makes the inside steam of snakelike steam pipe carry out decompression work to snakelike steam pipe through the blowout of L type decompression pipe.

2. The utility model discloses in, the cooling tube, the setting of delivery pipe and spray line be favorable to carrying out watering cooling work to fixed heating cabinet and snakelike steam pipe surface, conveniently maintain and overhaul work.

3. The utility model discloses in, the setting of dismantled fixed plate, ventilation circulating pipe, air-supply line, connecting plate and miniature direct current fan be favorable to making the inside air of steam boiler shell form cycle work, make things convenient for the inside supplementary gas that oxygen got into the steam boiler shell to carry out combustion work.

4. The utility model discloses in, the setting of dismantling fixed plate and winged bolt, be favorable to dismantling and dismantle the fixed plate, the work is maintained and overhauld to the inside equipment of steam boiler shell to the convenience.

5. The utility model discloses in, fixed heating cabinet, the setting of connecting block and grafting pipe is favorable to dismantling and installing snakelike steam pipe, conveniently maintains and overhauls work to snakelike steam pipe.

6. The utility model discloses in, steam boiler shell, hexagon head bolt, the setting of fixed heating cabinet and connecting block is favorable to installing fixed heating cabinet, convenient dismantlement and fixed work to fixed heating cabinet.

7. The utility model discloses in, cooling pipe, the setting of division board and stainless steel net, the steam that produces when being favorable to distributing the cooling prevents that the steam that produces from too much influencing work.

8. The utility model discloses in, the setting of cooling tube and rubber buffer, be favorable to preventing that the dust from falling into the inside of steam boiler shell through the cooling tube, influence boiler heating work.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the depressible steam serpentine structure of the present invention.

Fig. 3 is a schematic structural view of the structure of the sprayable cooling heat dissipation tube of the present invention.

Fig. 4 is a schematic structural diagram of the rotatable intake circulation plate structure of the present invention.

In the figure:

1. a steam boiler shell; 2. a support block; 3. a gas tank; 4. an air outlet pipe; 5. a gas supply pipe; 6. a depressurisable steam serpentine structure; 61. fixing the heating box; 62. connecting blocks; 63. inserting a pipe; 64. a serpentine steam pipe; 65. an L-shaped pressure reducing tube; 66. a manual valve; 7. a cooling pipe structure capable of being sprayed; 71. a cooling pipe; 72. a water supply pipe; 73. a spray tube; 74. a partition plate; 75. a stainless steel mesh; 76. a rubber plug; 8. a rotatable intake circulation plate structure; 81. a detachable fixing plate; 82. a wing bolt; 83. a ventilation circulation pipe; 84. an air inlet pipe; 85. a connecting plate; 86. a micro DC fan; 9. a hexagon head bolt; 10. a steam output pipe; 11. a water inlet switch; 12. a connecting pipe; 13. a water supply pump; 14. a water inlet pipe; 15. the water supply seat is fixed.

Detailed Description

The present invention is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, an improved steam boiler comprises a steam boiler shell 1, supporting blocks 2, a gas tank 3, an outlet pipe 4, a gas supply pipe 5, a pressure-reducing steam coiled pipe structure 6, a spraying cooling radiating pipe structure 7, a rotatable air inlet circulating plate structure 8, hexagonal bolts 9, a steam output pipe 10, a water inlet switch 11, a connecting pipe 12, a water supply pump 13, a water inlet pipe 14 and a fixed water supply base 15, wherein the supporting blocks 2 are respectively bolted on the left side and the right side of the lower end of the steam boiler shell 1; the gas tank 3 is connected to the bottom end of the steam boiler shell 1 through bolts; the gas outlet pipe 4 is sequentially welded at the upper end of the gas tank 3 from left to right; the gas supply pipe 5 penetrates through the lower part of the left side of the steam boiler shell 1 and is welded on the lower part of the left side of the gas tank 3; the pressure-reducing steam coiled pipe structure 6 is arranged at the top end of the interior of the steam boiler shell 1; the spraying cooling radiating pipe structure 7 is arranged in the middle of the upper end of the steam boiler shell 1; the rotatable air inlet circulating plate structure 8 is arranged at the lower part of the right side of the steam boiler shell 1; the hexagonal bolts 9 penetrate through the left side and the right side of the upper end of the steam boiler shell 1 respectively and are in threaded connection with the pressure-reducing steam coiled pipe structure 6; the steam output pipe 10 penetrates through the right side of the upper end of the steam boiler shell 1; the water inlet switch 11 is connected to the upper part of the left side of the steam boiler shell 1 through a screw; the connecting pipe 12 penetrates through the middle position inside the left side of the steam boiler shell 1; the water supply pump 13 is bolted on the middle position of the upper end of the fixed water supply seat 15; the left end of the connecting pipe 12 is connected with the upper part of the right side of the water supply pump 13 in a threaded manner; the right end of the water inlet pipe 14 is in threaded connection with the upper part of the left side of the water supply pump 13; the right end of the fixed water supply seat 15 is welded at the middle position of the left side of the steam boiler shell 1; the pressure-reducing steam coiled pipe structure 6 comprises a fixed heating box 61, a connecting block 62, a splicing pipe 63, a coiled steam pipe 64, an L-shaped pressure-reducing pipe 65 and a manual valve 66, wherein the connecting block 62 is respectively welded at the left side and the right side of the upper end of the fixed heating box 61; the splicing pipes 63 are respectively welded at the left side and the right side of the top end inside the fixed heating box 61; the upper end of the snake-shaped steam pipe 64 penetrates through the insertion pipe 63; the left side of the lower end of the L-shaped pressure reducing pipe 65 is welded at the lower part of the right side of the snake-shaped steam pipe 64; the manual valve 66 is inserted in the middle of the upper end of the L-shaped decompression pipe 65 in a threaded manner; when the steam boiler is used, an external water pipe is connected to the outer wall of the left end of the water inlet pipe 14, the water inlet switch 11 is opened, the water supply pump 13 starts to work, clear water is injected into the snake-shaped steam pipe 64, fuel gas is conveyed into the fuel gas tank 3 through the fuel gas supply pipe 5 and is sprayed out through the gas outlet pipe 4 to ignite the fuel gas, the snake-shaped steam pipe 64 is heated, clear water in the snake-shaped steam pipe 64 is gasified, positions required by work are conveyed through the steam output pipe 10, the work of the steam boiler is completed, if necessary, the manual valve 66 is rotated, and a part of steam in the snake-shaped steam pipe 64 is discharged through the L-shaped pressure reducing pipe 65 to perform pressure reduction work, so that the work is prevented from.

In this embodiment, referring to fig. 3, the spraying cooling heat pipe structure 7 includes a cooling pipe 71, a water supply pipe 72, a spraying pipe 73, a partition plate 74, a stainless steel net 75 and a rubber plug 76, wherein the water supply pipe 72 penetrates through the left side of the inside of the cooling pipe 71; the lower end of the water supply pipe 72 is welded at the middle position of the upper end of the spraying pipe 73; the partition plate 74 is welded at the middle position in the cooling pipe 71; one end of the stainless steel net 75 is screwed in the middle position of the left side of the partition plate 74; the other end of the stainless steel net 75 is screwed in the middle of the right inner wall of the cooling pipe 71; the rubber plug 76 is inserted at the right side of the upper end of the cooling pipe 71; when the steam boiler during operation breaks down and maintains, use outside water piping connection to pull out rubber buffer 76 at the upper end outer wall of delivery pipe 72, make the clear water spray in steam boiler shell 1's inside through spray pipe 73, carry out cooling work to fixed heating cabinet 61 and snakelike steam pipe 64, conveniently in time maintain and overhaul work.

In this embodiment, referring to fig. 4, the rotatable air intake circulation plate structure 8 includes a detachable fixing plate 81, a wing bolt 82, a ventilation circulation pipe 83, an air inlet pipe 84, a connection plate 85 and a micro dc fan 86, wherein the wing bolt 82 penetrates through the middle position inside the upper end of the detachable fixing plate 81; the ventilation circulating pipe 83 sequentially penetrates through the detachable fixing plate 81 from top to bottom; the air inlet pipe 84 is welded at the middle position inside the lower end of the detachable fixing plate 81; the connecting plate 85 is respectively welded on the right side of the top end of the inner wall of the air inlet pipe 84 and the right side of the bottom end of the inner wall; the miniature direct current fan 86 is connected between the connecting plates 85 through bolts; when the steam boiler works, air is conveyed to the inside of the steam boiler shell 1 through the ventilation circulating pipe 83 and the micro direct current fan 86, the heated air is discharged out of the steam boiler shell 1 through the ventilation circulating pipe 83, oxygen is conveniently provided for fuel gas to perform combustion work, the phenomenon that the combustion and heating work of the fuel gas is influenced due to the lack of oxygen in a closed space is prevented, if necessary, the wing-shaped bolt 82 is detached, the detachable fixing plate 81 is taken off, and the maintenance work is performed on equipment inside the steam boiler shell 1.

In this embodiment, specifically, the hexagonal bolts 9 are respectively screwed in the middle inside the upper end of the connecting block 62; the left side of the lower end of the L-shaped pressure reducing pipe 65 penetrates through the middle position of the right side of the steam boiler shell 1; the right end of the connecting pipe 12 is in threaded connection with the inner wall of the left end of the snake-shaped steam pipe 64; the steam output pipe 10 is welded to the upper right side of the serpentine steam pipe 64.

In this embodiment, specifically, the serpentine steam pipe 64 is a serpentine stainless steel pipe; the fixed heating box 61 is a stainless steel box with through holes at both ends.

In the embodiment, specifically, the gas tank 3 is communicated with the gas outlet pipe 4; the gas tank 3 is communicated with the gas supply pipe 5.

In this embodiment, specifically, the spraying pipe 73 is a stainless steel pipe with a through hole at the lower end; the water supply pipe 72 is communicated with the spraying pipe 73; the rubber stopper 76 is connected with the nylon rope of the cooling pipe 71.

In this embodiment, specifically, the cooling pipe 71 is welded at the middle position of the upper end of the steam boiler shell 1; the spraying pipe 73 is arranged at the middle position of the top end in the steam boiler shell 1; the cooling pipe 71 is communicated with the steam boiler shell 1.

In this embodiment, specifically, the ventilation circulation pipe 83 is welded to the detachable fixing plate 81; the air inlet pipe 84 penetrates through the middle position inside the lower end of the detachable fixing plate 81.

In the present embodiment, specifically, the wing bolt 82 is screwed to the lower portion of the right side of the steam boiler shell 1.

In this embodiment, the water inlet switch 11 is specifically a self-resetting button switch with a model number of LA38-11 BN; the water supply pump 13 is a water supply pump of MHIL 203.

In this embodiment, specifically, the micro dc fan 86 is a 8025 dc fan with a switch.

In this embodiment, the water inlet switch 11 is electrically connected to the water supply pump 13.

Principle of operation

In the utility model, when in use, connect the external water pipe at the left end outer wall of the water inlet pipe 14, open the water inlet switch 11, make the working of the water supply pump 13 start, pour into the clear water into the inside of the snakelike steam pipe 64, carry the gas to the inside of the gas case 3 through the gas supply pipe 5, make the gas spout through the outlet duct 4, ignite the gas, carry out the heating work of the snakelike steam pipe 64, gasify the clear water inside the snakelike steam pipe 64, carry the position that the work needs through the steam output pipe 10, accomplish the work of the steam boiler, if necessary, rotate the manual valve 66, make the steam inside the snakelike steam pipe 64 emit a part through the L type pressure reducing pipe 65 to carry out the pressure reducing work, prevent the work from being influenced by too high pressure or the dangerous accident appears, when the trouble appears in the work of the steam boiler, use the external, the rubber stopper 76 is pulled out, clean water is sprayed inside the steam boiler shell 1 through the spraying pipe 73, the fixed heating box 61 and the snake-shaped steam pipe 64 are cooled, maintenance and overhaul work can be conveniently and timely carried out, when the steam boiler works, air is conveyed to the inside of the steam boiler shell 1 through the ventilation circulating pipe 83 and the micro direct current fan 86, the heated air is discharged out of the steam boiler shell 1 through the ventilation circulating pipe 83, oxygen is conveniently provided for gas to carry out combustion work, the phenomenon that oxygen is lacking in a closed space to influence the combustion and heating work of the gas is avoided, if necessary, the wing-shaped bolt 82 is detached, the detachable fixing plate 81 is taken out, and the maintenance and overhaul work is carried out on equipment inside the steam boiler shell 1.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. An improved steam boiler is characterized by comprising a steam boiler shell (1), supporting blocks (2), a gas tank (3), an air outlet pipe (4), a gas supply pipe (5), a coiled pipe structure (6) of steam capable of reducing pressure, a spraying cooling heat dissipation pipe structure (7), a rotatable air inlet circulating plate structure (8), a hexagon bolt (9), a steam output pipe (10), an inlet switch (11), a connecting pipe (12), a water supply pump (13), an inlet pipe (14) and a fixed water supply base (15), wherein the supporting blocks (2) are respectively bolted on the left side and the right side of the lower end of the steam boiler shell (1); the gas tank (3) is connected to the bottom end of the interior of the steam boiler shell (1) through bolts; the gas outlet pipe (4) is sequentially welded at the upper end of the gas tank (3) from left to right; the gas supply pipe (5) penetrates through the lower part of the left side of the steam boiler shell (1) and is welded on the lower part of the left side of the gas tank (3); the coiled pipe structure (6) capable of reducing pressure is arranged at the top end of the interior of the steam boiler shell (1); the spraying cooling heat dissipation pipe structure (7) is arranged in the middle of the upper end of the steam boiler shell (1); the rotatable air inlet circulating plate structure (8) is arranged at the lower part of the right side of the steam boiler shell (1); the hexagonal bolts (9) penetrate through the left side and the right side of the upper end of the steam boiler shell (1) respectively and are in threaded connection with the coiled pipe structure (6) of the pressure-reducing steam; the steam output pipe (10) penetrates through the right side of the upper end of the steam boiler shell (1); the water inlet switch (11) is connected to the upper part of the left side of the steam boiler shell (1) through a screw; the connecting pipe (12) penetrates through the middle position inside the left side of the steam boiler shell (1); the water supply pump (13) is connected to the middle position of the upper end of the fixed water supply seat (15) through a bolt; the left end of the connecting pipe (12) is in threaded connection with the upper part of the right side of the water supply pump (13); the right end of the water inlet pipe (14) is in threaded connection with the upper part of the left side of the water supply pump (13); the right end of the fixed water supply seat (15) is welded at the middle position of the left side of the steam boiler shell (1); the pressure-reducing steam serpentine tube structure (6) comprises a fixed heating box (61), a connecting block (62), an inserting tube (63), a serpentine steam tube (64), an L-shaped pressure-reducing tube (65) and a manual valve (66), wherein the connecting block (62) is respectively welded at the left side and the right side of the upper end of the fixed heating box (61); the inserting pipes (63) are respectively welded at the left side and the right side of the top end inside the fixed heating box (61); the upper end of the snake-shaped steam pipe (64) penetrates through the insertion pipe (63); the left side of the lower end of the L-shaped pressure reducing pipe (65) is welded at the lower part of the right side of the snake-shaped steam pipe (64); the manual valve (66) is inserted in the middle of the upper end of the L-shaped decompression pipe (65) in a threaded manner.

2. An improved steam boiler according to claim 1, characterized in that said sprayable temperature reducing and heat dissipating tube structure (7) comprises a temperature reducing tube (71), a water supply pipe (72), a spraying tube (73), a partition plate (74), a stainless steel net (75) and a rubber plug (76), said water supply pipe (72) penetrating the inner left side of the temperature reducing tube (71); the lower end of the water supply pipe (72) is welded at the middle position of the upper end of the spraying pipe (73); the partition plate (74) is welded at the middle position in the cooling pipe (71); one end of the stainless steel net (75) is connected to the middle position of the left side of the partition plate (74) through a screw; the other end of the stainless steel net (75) is connected with the middle position of the right inner wall of the cooling pipe (71) through a screw; the rubber plug (76) is inserted at the right side of the upper end of the cooling pipe (71).

3. An improved steam boiler according to claim 1, characterized in that said rotatable air intake circulating plate structure (8) comprises a detachable fixed plate (81), a wing bolt (82), a ventilation circulating pipe (83), an air inlet pipe (84), a connecting plate (85) and a micro dc fan (86), said wing bolt (82) penetrates through the upper inner middle position of the detachable fixed plate (81); the ventilation circulating pipe (83) penetrates through the detachable fixing plate (81) from top to bottom in sequence; the air inlet pipe (84) is welded in the middle of the inner part of the lower end of the detachable fixing plate (81); the connecting plates (85) are respectively welded on the right side of the top end of the inner wall and the right side of the bottom end of the inner wall of the air inlet pipe (84); the miniature direct current fan (86) is connected between the connecting plates (85) through bolts.

4. An improved steam boiler according to claim 1, wherein the hexagonal head bolts (9) are respectively screwed to the upper inner middle positions of the connection blocks (62); the left side of the lower end of the L-shaped pressure reducing pipe (65) penetrates through the middle position of the right side of the steam boiler shell (1); the right end of the connecting pipe (12) is in threaded connection with the inner wall of the left end of the snake-shaped steam pipe (64); the steam output pipe (10) is welded at the upper part of the right side of the serpentine steam pipe (64).

5. An improved steam boiler according to claim 1, characterized in that the serpentine steam pipe (64) is made of serpentine stainless steel pipe; the fixed heating box (61) adopts a stainless steel box with through holes at two ends.

6. An improved steam boiler according to claim 1, characterized in that the gas box (3) is communicated with the outlet pipe (4); the gas tank (3) is communicated with the gas supply pipe (5).

7. An improved steam boiler according to claim 2, characterized in that the spraying pipe (73) is a stainless steel pipe with through holes at the lower end; the water supply pipe (72) is communicated with the spraying pipe (73); the rubber stopper (76) and the cooling pipe (71) are connected by a nylon rope.

8. An improved steam boiler according to claim 2, characterized in that the cooling tubes (71) are welded to the steam boiler shell (1) at the middle of the upper end thereof; the spraying pipe (73) is arranged in the middle of the top end in the steam boiler shell (1); the cooling pipe (71) is communicated with the steam boiler shell (1).

9. An improved steam boiler according to claim 3, characterized in that the ventilation circulating pipe (83) and the detachable fixing plate (81) are welded together; the air inlet pipe (84) penetrates through the middle position inside the lower end of the detachable fixing plate (81).

10. An improved steam boiler according to claim 3, characterised in that the wing bolts (82) are screwed in the lower right-hand part of the steam boiler shell (1).