KR20020035705A - Coal boiler device - Google Patents

Abstract

PURPOSE: A coal boiler device is provided to endure high pressure, to powerfully rotate a turbine and to keep high heat efficiency continuously. CONSTITUTION: A steam delivery pipe(42) connects a steam tank(43) with a steam spray pipe. The steam spray pipe is connected with a dry steam pipe(44). The dry steam pipe is connected with a discharge pipe. An exhaust gas discharge chamber(50) is placed on an upper water chamber(10). A plurality of fire pipe(14) with exhaust holes penetrating are extended to penetrate the exhaust gas discharge chamber. A plurality of fire pipe cleaner, automatically cleaning insides of the fire pipes, are installed on upper ends of the fire pipes.

Description

Coal Boiler Unit {.}

In the present invention, the boiler is formed to be inclined so that a plurality of rooster water pipes are extended to the bottom of the combustion chamber to support and transport the lumps of coal, thereby increasing the thermal efficiency, and installing a steam engine in the combustion chamber to provide steam generated from the double pipe. The present invention relates to a coal and boiler apparatus for improving the effect of the high pressure by passing through the combustion chamber and further improving the effect of the high pressure and installing a sludge removal device for removing sludge in the corolla, thereby burning cheap and good thermal artificial coal.

The large boilers used in conventional thermal power generation are mostly lined with water pipes only around the wall of the large combustion chamber, and the combustion chamber is formed high and wide in order to heat the steam generated by the high temperature radiant heat. There is a problem that a large amount of coal is consumed in order to make radiant heat, and the boiler cleaning work is an artificial work because it cleans the outside of the water pipe, which is complicated and hassle. .

In order to solve and supplement these problems, the applicant of the present application filed as Utility Model Registration No. 97-22155, Patent Application No. 97-82339, Patent Application No. 98-12010, Patent Application No. 98-22631, etc. have.

The pre-registered boiler configuration has a combustion chamber at the bottom and a device for supplying fuel to the combustion chamber at the front side, and an upper and a sewage chamber connected to a plurality of water pipes with a built-in corolla at the upper part of the combustion chamber. It had a water circulation pipe and a rooster water pipe to facilitate circulation, and a dry steam room piped with a dry steam engine in the upper part, and the steam passing through the dry steam chamber was collected in a steam transfer pipe and supplied to the turbine through the combustion chamber.

However, in the conventional boiler, the steam transfer pipe and the dry steam engine reheating in the combustion chamber should be composed of one large pipe and the thickness of the pipe should be thick.

In addition, the conventional boiler is a support structure is weak because the corolla built inside the water pipe is supported only by the upper and lower ends of the water supply and drainage chamber, and the dry steam chamber is located at the top, so that the dryness efficiency is reduced, and the sludge generated by burning the fossil fuel is attached to the corolla wall. There are drawbacks and difficulties in that a lot of fuel is wasted because of the crushing and heat loss.

The present invention was devised to solve the above-mentioned disadvantages, and its object is to support the corolla in the water pipe more firmly so that it can withstand high pressure sufficiently, and pass the steam engine into the combustion chamber to steam at high temperature. It is to provide a coal boiler device that can be maintained at high pressure by installing an automatic sludge removal device that periodically removes the sludge pressed in the inside of the corridor to force the turbine to run at high pressure.

1 is an external perspective view of the device of the present invention.

Figure 2a is a longitudinal cross-sectional view of the present invention A-A line.

Figure 2b is another embodiment of the garland cleaner of Figure 2a of the present invention.

3 is a cross-sectional view taken along line B-B of the present invention.

Figure 4 is an enlarged cross-sectional view of the water pipe of the present invention.

5 is a cross-sectional view taken along the line C-C of the present invention.

6 is a cross-sectional view taken along the line D-D of the present invention.

Figure 7 is a side view of the cleaning rod and the cleaning plate of the present invention.

8 is an enlarged top cross-sectional view of FIG. 2A of the present invention;

Figure 9 is an enlarged side cross-sectional view of the present invention Figure 8;

Figure 10 is an enlarged view of the upper chain operation state of Figure 2b of the present invention.

[Description of Symbols for Main Parts of Drawing]

10,10a-Upper and lower compartment 11,11a-Water pipe 12-Circulating water pipe

13-support plate 14-corolla 15-exhaust hole

16,16a-Rooster water pipe 17-Delayed jaw 18-Support 19-Passing hole

20-Combustion chamber 21-Air compression chamber 25a, 25b, 25c, 25d-Pulverized coal injection hopper

26-Burner 27-Blower 30,31-Cylinder

32-Discharge screw 34-Guide roller 37-Small plate

38-Operation Bar 40-Steam Dispersion Pipe 41-Circulating Water Pipe

42-Steam transfer pipe 43-Steam tank 44-Dry steam engine

45-Outlet pipe 46,46a-Steam pump 47,47a-Steam pump

50-Exhaust chamber 52-Dust collection tank 53-Cyclone

54-Support 60-Winch 62-Winding Roller

63-Wirerope 64-Sojechu 65-Chain

66-Sprocket 67-Chain Key 68-Spring

69,69a-Lever 70,70a-Valve

As shown, the boiler of the present invention has a combustion chamber 20 and a coal blower 26 for supplying air to the combustion chamber and a coal injection hopper 25a for injecting powdered coal into the combustion chamber 20 from both sides. (25b) (25c) (25d), the upper and lower compartments (10) (10a), and the upper chamber (10a), in which a plurality of dual pipes (11) (11a) including a corolla (14) are connected therein. In the support 54 for rotatably supporting the boiler consisting of the steam tank 43 and the combustion and discharged devices installed above, a plurality of rooster water pipes connecting the front and rear of the lower chamber (10a) ( 16) 16a is piped to the lower part of the combustion chamber 20, and the steam transfer pipe 42 is connected from the steam tank 43, and the steam dispersion pipe 40 branched from the steam transfer pipe 42 to the lateral side of the combustion chamber ( 20 is connected to the dry steam pipe 44 piped, and the discharge pipe 45 is connected to the dry steam pipe 44 passed through the combustion chamber 20.

In addition, the combustion gas exhaust chamber 50 is formed on the upper water chamber 10 to pipe the corolla 14 through the respective exhaust holes 15, and the corolla (between the water pipes 11) 11a and the corolla 14 is connected to each other. 14) install the support plate (13) to hold the sag down. In addition, the water pipe 11 is installed to circulate the hot water circulating water through the water pit and fixed to the outer wall of the upper and lower water chambers to withstand the steam pressure.

In addition, the corolla cleaning device for cleaning the inside of the corolla 14 is installed at the upper end of each corolla 14. That is, as shown in FIG. 8, the corolla cleaning device is swept into the interior of the corolla 14 by suspending the hanging 64 on the end of the wire rope 63 which is wound and unwound by the winding roller 62 by the operation of the winch 60. The weight 64 is configured to move up and down.

Reference numeral 52 is a collecting tank, and 53 is a cyclone building.

Referring to the operation of the boiler of the present invention having the above-described structure is as follows.

Since artificial ingot coal (coal) is injected and combusted in the combustion chamber 20, it becomes a high temperature, and impurities such as calcium, magnesium, and aluminum contained in coal are dissolved and then flows down to air-cooled to fall like coal ash. The dropped carbonaceous material is discharged to the outside by the discharge screw 32.

The coal coal generates high temperature heat of combustion, but since the coal ash generated in the combustion process is pressed to block the air, it is necessary to shake it off. 6 and 7, as shown in FIGS. 6 and 7, the cleaning plate 36 guided to the guide roller 34 is attached to the cleaning plate 37, and the cylinder 31 is operated to clean the cleaning rod. Retreat (36) back and forth before and after. At this time, the impurities contained in the coal is dissolved and combined with the carbonaceous material, when the small plate 37 pushes the carbonaceous material, which becomes a large mass, the opening and closing plate 33 is opened, and when the lumped ash falls, it is closed by its own weight.

Conventional boilers are burned while the impurities mixed in the coal are flowed, so it is necessary to remove them by attaching them to water pipes frequently. In the present invention, the high temperature is enough to melt the iron as it is burned in a state where the coal is not moved. As a result, the combustion chamber 20 expands in a very high temperature state, and the dry steam engine 44 is installed in the combustion chamber 20 at a high temperature. In particular, in order to increase the combustion efficiency of the coal briquettes, a support 18 is installed in the middle lower portion of the roster water pipe to prevent the rooster water pipes 16 and 16a from spreading, and before and after each of the roster water pipes 16 ( The operation bar 38 inserted and rotated between the 16a) and the cylinder 30 for operating the operation bar 38 are installed so that the cylinder 30 moves up and down the operation bar 38 periodically to drop the carbon material. As the air supply increases, the combustion efficiency can be further increased by mixing the coal coal.

Several blowers 27 are compressed into the air compression chamber 21 by a high pressure blower outside the rooster water pipes 16 and 16a. At this time, the coal is injected into the burner 26 from both sides of the boiler when the coal is burned at a high temperature. Combustion causes the combustion gas to expand to high heat in the combustion chamber 20 and discharge into the corollas 14. The discharged high-temperature combustion gas causes friction while passing through the corolla 14 at high speed, so that rapid heat exchange occurs, thereby obtaining high thermal efficiency.

Corolla support plate 13 serves to hold the corolla 14 in the water pipe (11) (11a) so that the flow or the center does not deviate.

In Figure 6, the delay jaw (17) is pushed sideways when the coal coales are descending along the inclination and rubbed with each other when rubbed with each other, the coal ashes are generated when the coal coalesce generates high heat during the combustion process, but if coal coal is stuck, thermal efficiency is insufficient due to lack of air supply Degrades.

When the winch 60 releases the wire rope 63 by this structure, the winch 60 falls to the lower part of the corolla 14 by the weight of the boil-off weight 64. At this time, ashes and impurities adhering to the inner wall of the corolla 14 are forcibly removed and cleaned. When the cleaning is completed, the winch 60 is wound again so that the sweeping weight 64 is elevated to the original position, the operation is completed in a few seconds.

In the present invention, one of the main features is that the dry steam engine 44 is installed in the combustion chamber 20. The reason for this is that when the coal is combusted in the combustion chamber 20, the parts in contact with the coal are warmed to a temperature of about 1400 ° C., so that water and steam rise together, and steam is supplied to the steam transport pipe 42 through the steam tank 43. The water is circulated again to the circulating water pipe 12 to enter the sewage chamber 10a and continue to circulate. In addition, the steam of the steam transport pipe 42 is transferred to the steam dispersion pipes 40 so that the dry and dry high pressure steam in the dry steam engine (sparita) 44 in the combustion chamber 20 is shown in the drawing through the discharge pipe 45. Is fed to an untreated turbine to rotate the turbine.

When the coal is burned, the contained impurities are dissolved and flow down to be combined with the charcoal to be discharged, thereby reducing the amount of sludge adhered to the inside of the pipe 14, and as shown in FIG. (15) and when cleaning, the cleansing weight 64 cleans while lowering the inside of the corolla 14 by the operation of the spring roller 62, and during the cleaning, the weight 64 blocks the exhaust hole 15 to burn the heat. It does not rise and goes down to the additional end and immediately goes up by operation of the base 60 after cleaning.

Another embodiment of the corolla cleaning device, as shown in Fig. 2b and 10, each corolla 14 is grouped to install a sprocket 66 on both sides thereof, the chain is rotated past the top of the corolla 14 of the group 65, the upper end of each corolla 14 is connected to the vapor pressure pipe 46, 46a is connected to the steam pressure connection pipe (47, 47a) to supply high-pressure steam and corolla 14 In the upper portion of the opening and closing valves 70 and 70b which are opened and closed by levers 69 and 69a which are restored by the spring 68 and intermittently injects high-pressure steam, the chain 65 is provided with a lever ( 69 and 69a constitute a chain key 67 which alternately operates.

With this structure, the sprocket 66 rotates so that the chain 65 rotates, and the chain key 67 provided on the chain 65 is provided on the on / off valves 70 and 70b of each corridor 14. Since the levers 69 and 69a are rotated sequentially to open, the high pressure steam is injected into the corridor 14 from the vapor pressure pipes 46 and 46a.

The high pressure steam is injected into the corolla 14 in which the open / close valves 70 and 70b are opened to remove and remove the sludge attached to the inner wall. In addition, when the chain key 67 moves and is separated from the levers 69 and 69a, the chain key 67 is restored to its original position by the elasticity of the spring 68, which is tensioned, so that the on / off valves 70 and 70b are closed, so that the high pressure steam Since it can not be supplied to the inside of the corolla will perform the function of the original corolla 14. This operation alternately operates the on-off valves 70 and 70b divided into groups.

As described above, in the present invention, the boiler is inclined to form a plurality of rooster water pipes in the lower part of the combustion chamber to support the pipe and support the transfer of the coal. Since the steam generated in the drying chamber is passed through the drying chamber to further improve the effect of high pressure and install a sludge removal device to remove the sludge of the corolla, it is possible to use an inexpensive and good thermal artificial coal.

In addition, when the fuel is replaced with oil or gas, the roast water pipe can be removed and replaced with a burner.

Claims (4)

A blower 27 for supplying air to the combustion chamber 20 and the combustion chamber at the lower portion, a burner 26 for injecting powdered coal in the combustion chamber, and a plurality of coal injection hoppers 25a (25b, 25c) for injecting coal into the front surface ( 25d) and the upper and lower compartments 10 and 10a to which a plurality of dual water pipes 11 and 11a including the corolla 14 are connected, and a steam tank installed in front of the upper chamber 10 43) and a support 54 for rotatably supporting a boiler comprising combustion and discharged devices, The steam transfer pipe 42 from the steam tank 43 is connected to the steam injection pipe 40 and connected to the dry steam engine of heat loss to perform the dry steam engine 44 function and then connected to the discharge pipe 45, the upper portion Combustion gas exhaust chamber 50 is formed on the water chamber 10 so that the corolla 14 through which the exhaust hole 15 is drilled can be extended through, and the upper portion of each corolla 14 is automatically cleaned inside the corolla. Coal boiler device, characterized in that installed by installing the corolla material device. According to claim 1, wherein the coronary cleaning device is cleaned in the corolla (14) by suspending the 64 to the end of the wire rope (63) wound and unwound by the winding roller (62) by the operation of the original 60 (60). Coal boiler device characterized in that the weight (64) is raised and lowered. According to claim 1, wherein the corolla cleaning device is to group each corolla 14 to install the sprocket 66 on both sides thereof, and to install a chain (65) which rotates past the upper corolla 14 for each group In addition, the upper end of each corolla 14 is connected to the vapor pressure pipe (46, 46a) is connected to the steam pressure connection pipe (47, 47a) to supply a high-pressure steam and the spring (68) on the upper portion of the corolla 14 And opening / closing valves 70 and 70b which are opened and closed by levers 69 and 69a which are restored by the restoring operation and intermittently injects high-pressure steam, and the levers 65 and 69a are provided on the chain 65. Coal boiler device characterized in that the configuration consisting of a chain key (67) for operating. The operating bar 38 according to claim 1, wherein the support bar 18 is installed on the rooster water pipes 16 and 16a, and the insertion bar 38 is inserted between the roster water pipes 16 and 16a above and below the support 18. And a cylinder (31) for operating the operation bar (38).