Square fire tube and internally-square and externally-circular combined steam generator

Abstract

The utility model discloses a square fire tube and internally square and externally circular combined steam generator which comprises a shell, a furnace body is fixedly arranged at the bottom of the inner side of the shell, two inner containers are arranged in the middle of the inner side of the furnace body, and a plurality of square fire tubes and triangular fire tubes are arranged in the two inner containers. According to the square fire tube and internally-square and externally-circular combined steam generator, the motor drives the lead screw to rotate, then the sleeve is driven to move downwards, the fixing plate and the supporting rods are driven to move downwards, and then the cleaning pieces are driven to move downwards; through the arrangement of a plurality of cleaning pieces, scale attached to the inner walls of a plurality of square fire tubes and a plurality of triangular fire tubes can be conveniently cleaned, so that the scale falls into two snake-shaped flow dividing tubes, then clear water is guided into the two snake-shaped flow dividing tubes, two valves are opened, and the scale is conveniently discharged from two blow-off tubes; therefore, automatic cleaning of the water scale is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steam generator, concretely to a square fire tube and internal square external circle combined type steam generator. BACKGROUND

[0002] The steam generator, also called steam heat source machine (commonly known as boiler), is a mechanical equipment using the heat energy of fuel or other energy to heat water into hot water or steam. However, since the water scale is prone to be generated in the water pipe of the steam generator, it is usually needed to be cleaned manually, and it is inconvenient to clean the water scale attached to the inner wall of the fire tube automatically.

[0003] To solve the above problems, a square fire tube and internal square external circle combined type steam generator is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a square fire tube and internal square external circle combined type steam generator to solve the problems in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a square fire tube and internal square external circle combined type steam generator, comprising a shell, a furnace body is fixedly arranged at the bottom of the inner side of the shell, two inner containers are arranged at the middle of the inner side of the furnace body, a plurality of square fire tubes and triangular fire tubes are arranged in the interiors of the two inner containers, a snake type shunt pipe is fixedly and communicatively arranged at the bottom between the plurality of square fire tubes and the plurality of triangular fire tubes on the same side, a heat insulation layer is arranged at the top of the inner side of the shell, two steam collecting tanks are arranged in the interior of the heat insulation layer, the top ends of the plurality of square fire tubes and the plurality of triangular fire tubes respectively extend into the interiors of the two steam collecting tanks, a mounting seat is fixedly arranged at one side of the top end of the shell, a fixing seat is fixedly arranged at the top end of the mounting seat, a motor is fixedly arranged at the bottom of the inner side of the fixing seat, a lead screw is fixedly connected to the interior of the mounting seat and extends from the output end of the motor, a sleeve is threadedly arranged on the surface of the lead screw, a fixing plate is fixedly arranged on the surface of the sleeve, a plurality of supporting rods are fixedly arranged at the bottom end of the fixing plate, and cleaning members are fixedly connected to the interiors of the two steam collecting tanks and extend from the bottom ends of the plurality of supporting rods.

[0006] The lead screw is driven to rotate by the motor, the sleeve is driven to move downwards, the fixing plate and the plurality of supporting rods are driven to move downwards, and the plurality of cleaning members are driven to move downwards, so that the water scale attached to the inner walls of the plurality of square fire tubes and the plurality of triangular fire tubes can be cleaned, the water scale falls into the two snake type shunt pipes, clean water is introduced into the two snake type shunt pipes, and the two valves are opened, so that the water scale can be discharged from the two blowdown pipes, and the automatic cleaning of the water scale is realized.

[0007] Preferably, the bottom of the furnace body is provided with a combustion chamber, one side of the shell is provided with a feeding hopper, the bottom end of the feeding hopper extends to the inside of the combustion chamber, and fuel is introduced into the combustion chamber through the feeding hopper.

[0008] Preferably, one side of each of the two snake-shaped distribution pipes is fixedly connected with a blowdown pipe, and one end of each of the two blowdown pipes extends to the outside and is fixedly connected with a valve, so that sewage can be conveniently discharged through the blowdown pipe.

[0009] Preferably, a waste heat recovery device is fixedly arranged on one side of the inner wall of the shell, and an access door is hingedly connected to the front of the shell, so that the device can be conveniently overhauled through the arrangement of the access door.

[0010] Preferably, the plurality of cleaning members are correspondingly arranged with the plurality of square fire tubes and the plurality of triangular fire tubes, so that the scale attached to the inner walls of the plurality of square fire tubes and the plurality of triangular fire tubes can be conveniently cleaned through the arrangement of the plurality of cleaning members.

[0011] Preferably, the top end of each of the two steam collection tanks is fixedly connected with an exhaust pipe, and the top of the two exhaust pipes is fixedly connected with a connecting pipe, so that steam can be conveniently discharged through the arrangement of the two exhaust pipes and the connecting pipe.

[0012] Preferably, a pressure gauge and a temperature gauge are fixedly arranged at the top end of the connecting pipe, so that the pressure and temperature of the steam can be conveniently monitored through the arrangement of the pressure gauge and the temperature gauge.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the motor drives the screw rod to rotate, and then drives the sleeve to move downward, so as to drive the fixed plate and the plurality of supporting rods to move downward, and then drive the plurality of cleaning members to move downward, so that the scale attached to the inner walls of the plurality of square fire tubes and the plurality of triangular fire tubes can be conveniently cleaned through the arrangement of the plurality of cleaning members, the scale falls into the two snake-shaped distribution pipes, clean water is introduced into the two snake-shaped distribution pipes, and the two valves are opened, so that the scale can be conveniently discharged from the two blowdown pipes, thereby realizing automatic cleaning of the scale. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a partial sectional view of the utility model from the top;

[0017] Figure 4 It is an enlarged view of part A of the utility model.

[0018] In the figure: 1, shell; 2, furnace body; 3, inner container; 4, square fire tube; 5, heat insulation layer; 6, steam collection tank; 7, mounting seat; 8, support rod; 9, cleaning piece; 10, waste heat recovery device; 11, feeding hopper; 12, combustion chamber; 13, snake type shunt pipe; 14, blowdown pipe; 15, valve; 16, triangular fire tube; 17, fixing seat; 18, motor; 19, screw rod; 20, sleeve; 21, fixed plate; 22, access door; 23, exhaust pipe; 24, connecting pipe; 25, pressure gauge; 26, temperature gauge. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a square fire tube and inner square outer circle combined type steam generator, including the shell 1, the bottom of the inner side of shell 1 is fixedly provided with furnace body 2, the middle of the inner side of furnace body 2 is provided with two inner containers 3, the inside of two inner containers 3 is provided with several square fire tubes 4 and triangular fire tubes 16, the bottom between several square fire tubes 4 and several triangular fire tubes 16 located at the same side is fixedly communicated with snake type shunt pipe 13, the top of the inner side of shell 1 is provided with heat insulation layer 5, the inside of heat insulation layer 5 is provided with two steam collection tanks 6, the top of several square fire tubes 4 and the top of several triangular fire tubes 16 respectively extend to the inside of two steam collection tanks 6, one side of the top of shell 1 is fixedly provided with mounting seat 7, the top of mounting seat 7 is fixedly provided with fixing seat 17, the bottom of the inner side of fixing seat 17 is fixedly installed with motor 18, the output end of motor 18 extends to the inside of mounting seat 7 and is fixedly connected with screw rod 19, the surface of screw rod 19 is provided with sleeve 20, the surface of sleeve 20 is fixedly provided with fixed plate 21, the bottom end of fixed plate 21 is fixedly provided with several support rods 8, the bottom end of several support rods 8 respectively extends to the inside of two steam collection tanks 6 and is fixedly connected with cleaning piece 9, through the rotation of screw rod 19 driven by motor 18, in turn drives sleeve 20 to move down, thereby drives fixed plate 21 and several support rods 8 to move down, in turn drives several cleaning pieces 9 to move down, through the setting of several cleaning pieces 9, it is convenient for the scale attached to the inner wall of several square fire tubes 4 and several triangular fire tubes 16 to be cleaned, makes the scale fall into two snake type shunt pipes 13, imports clean water into two snake type shunt pipes 13 again and opens two valves 15, it is convenient for the scale to be discharged from two blowdown pipes 14, thereby realizes the automatic cleaning of scale.

[0021] The bottom of the inside of the furnace body 2 is provided with a combustion chamber 12, one side of the shell 1 is provided with a feeding hopper 11, the bottom end of the feeding hopper 11 extends to the inside of the combustion chamber 12, one side of two snake type distribution pipes 13 is fixedly connected with a blowdown pipe 14, one end of the two blowdown pipes 14 extends to the outside and is fixedly connected with a valve 15, one side of the inner wall of the shell 1 is fixedly provided with a waste heat recovery device 10, the front of the shell 1 is hingedly connected with an access door 22;

[0022] In use, fuel is introduced into the combustion chamber 12 through the feeding hopper 11, sewage is conveniently discharged through the blowdown pipe 14, and the device is conveniently overhauled through the arrangement of the access door 22;

[0023] The plurality of cleaning pieces 9 are correspondingly arranged with the plurality of square fire tubes 4 and the plurality of triangular fire tubes 16, the top end of the two steam collecting tanks 6 is fixedly connected with an exhaust pipe 23, the top of the two exhaust pipes 23 is fixedly connected with a connecting pipe 24, and the top end of the connecting pipe 24 is fixedly provided with a pressure gauge 25 and a temperature gauge 26;

[0024] In use, the arrangement of the plurality of cleaning pieces 9 facilitates the cleaning of the scale attached to the inner walls of the plurality of square fire tubes 4 and the plurality of triangular fire tubes 16, the arrangement of the two exhaust pipes 23 and the connecting pipe 24 facilitates the discharge of steam, and the arrangement of the pressure gauge 25 and the temperature gauge 26 facilitates the monitoring of the pressure and temperature of the steam.

[0025] In use, the steam generator adopts a double-shell furnace, a plurality of triangular fire tubes 16 and a plurality of square fire tubes 4 are arranged in the interiors of the two cylindrical inner shells 3, and only a 6-8mm thick water layer is arranged in the fire tubes. Once the fire is ignited, the water will be immediately boiled and steam will be generated. After use, the motor 18 drives the screw rod 19 to rotate, thereby driving the sleeve 20 to move downward, thereby driving the fixed plate 21 and the plurality of supporting rods 8 to move downward, thereby driving the plurality of cleaning pieces 9 to move downward. The arrangement of the plurality of cleaning pieces 9 facilitates the cleaning of the scale attached to the inner walls of the plurality of square fire tubes 4 and the plurality of triangular fire tubes 16, so that the scale falls into the two snake type distribution pipes 13. Clean water is introduced into the two snake type distribution pipes 13 and the two valves 15 are opened, so that the scale is conveniently discharged from the two blowdown pipes 14, thereby realizing automatic cleaning of the scale. The square fire tubes are arranged to improve the water control capacity, and the circular shape of the furnace body improves the pressure bearing performance.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A square fire tube and inner square and outer circle combined type steam generator comprising a casing (1), characterized in that: The bottom of the inside of the shell (1) is fixedly provided with a furnace body (2), the middle of the inside of the furnace body (2) is provided with two inner containers (3), the inside of the two inner containers (3) is provided with a plurality of square fire tubes (4) and triangular fire tubes (16), the bottom between a plurality of square fire tubes (4) and a plurality of triangular fire tubes (16) on the same side is fixedly communicated with a snake-shaped shunt pipe (13), the top of the inside of the shell (1) is provided with a heat insulation layer (5), the inside of the heat insulation layer (5) is provided with two steam collecting tanks (6), the top of a plurality of square fire tubes (4) and the top of a plurality of triangular fire tubes (16) extend into the inside of the two steam collecting tanks (6) respectively, one side of the top of the shell (1) is fixedly provided with a mounting seat (7), the top of the mounting seat (7) is fixedly provided with a fixed seat (17), the bottom of the inside of the fixed seat (17) is fixedly installed with a motor (18), the output end of the motor (18) extends into the inside of the mounting seat (7) and is fixedly connected with a lead screw (19), the surface of the lead screw (19) is threadedly provided with a sleeve (20), the surface of the sleeve (20) is fixedly provided with a fixed plate (21), the bottom end of the fixed plate (21) is fixedly provided with a plurality of supporting rods (8), the bottom end of a plurality of supporting rods (8) extends into the inside of the two steam collecting tanks (6) and is fixedly connected with a cleaning piece (9) respectively.

2. A square shaped fire tube and combined internal square and external circular shaped steam generator as claimed in claim 1 wherein: The bottom of the inside of the furnace body (2) is provided with a combustion chamber (12), one side of the shell (1) is provided with a feeding hopper (11), the bottom end of the feeding hopper (11) extends into the inside of the combustion chamber (12).

3. A square shaped fire tube and combined internal square and external circular shaped steam generator as claimed in claim 1 wherein: One side of the two snake-shaped shunt pipes (13) is fixedly communicated with a blowdown pipe (14), one end of the two blowdown pipes (14) extends to the outside and is fixedly communicated with a valve (15).

4. A square shaped fire tube and combined internal square and external circular shaped steam generator as claimed in claim 1, wherein: One side of the inner wall of the shell (1) is fixedly provided with a waste heat recovery device (10), the front of the shell (1) is hingedly provided with an access door (22).

5. A square shaped fire tube and combined internal square and external circular shaped steam generator as claimed in claim 1, wherein: A plurality of cleaning pieces (9) are correspondingly provided with a plurality of square fire tubes (4) and a plurality of triangular fire tubes (16) respectively.

6. A square shaped fire tube and combined internal square and external circular shaped steam generator as claimed in claim 1, wherein: The top of the two steam collecting tanks (6) is fixedly communicated with an exhaust pipe (23), the top between the two exhaust pipes (23) is fixedly communicated with a connecting pipe (24).

7. A square shaped fire tube and internal square and external circular combined type steam generator as claimed in claim 6, wherein: The top of the connecting pipe (24) is fixedly provided with a pressure gauge (25) and a temperature gauge (26). The top of the connecting pipe (24) is fixedly provided with a pressure gauge (25) and a temperature gauge (26).

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