KR102055182B1 - The industrial boiler system with roaster of two way pipe type and tube header - Google Patents

Abstract

The present invention relates to a steam and heating medium leakage type composite boiler system having a high heating power structure. The purpose of the present invention is to guarantee high efficiency of an industrial boiler by connecting a steam boiler and a heating medium boiler. The steam boiler has a burner table in the shape of a dual roaster inside and is formed to provide high heating power by enabling water, air, and a heating medium to exchange heat. Specifically, the steam boiler and the heating medium can control an opening and closing valve (first damper and second damper) individually installed by selective control settings. The steam and heating medium leakage type composite boiler system can easily set a heat production value or a predetermined target temperature appropriate for the season or facility field and, also, can improve energy saving efficiency and high productivity by being variably applied. Also, according to the selective embodiment of the present invention, the steam and heating medium leakage type composite boiler system can be constructed by applying a white smoke reducing device to a rear end of the boiler and satisfies an environment rule limit by reducing harmful matters (harmful gas) and white smoke of the industrial boiler generated when being combusted. Also, the steam and heating medium leakage type composite boiler system largely improves usage safety and performance of the boiler.

Description

The industrial boiler system with roaster of two way pipe type and tube header}

The present invention is to ensure the high efficiency of the industrial boiler by connecting the steam boiler and the fruit boiler, the steam boiler is a double roaster type burner table is formed inside the water and air and fruit heat to each other to promote high thermal power In particular, steam boilers and fruit boilers can be adapted to control the on-off valves (first dampers and second dampers) provided in each of them by an optional control setting. The present invention relates to a steam-heated complex boiler system having a high thermal power structure, characterized by high productivity and energy saving efficiency, as well as easy setting change in heat production value.

In addition, the present invention is an optional embodiment, it can be installed by adding a white smoke reduction device to the rear end of the boiler, which reduces the white smoke and harmful substances (harmful gases) of the industrial boiler generated during combustion to reduce the environmental regulations It is formed to satisfy, it characterized in that the performance and safety of use of the boiler is greatly improved.

In general, the industrial heat medium boiler is a structure in which a spiral in which a special synthetic oil is circulated in a double spiral and a burner is installed at one center of the main body, as described in Patent No. 10-0377971, to ignite the burner. When the outside air is ignited and ignited, the ignited heat is discharged through the outside of the two or three tubes and the discharged smoke is discharged through the communication.

However, the conventional industrial boiler as described above has a disadvantage that the heat loss is severe because the heat generated from the inside is discharged to the outside through the firebox, thereby causing unnecessary waste by causing unnecessary waste of energy.

On the other hand, in order to solve the above problems, the thermal insulation is wrapped around the outside of the firebox to reduce the heat loss by using the thermal insulation effect, but since the combustion gas discharged to the outside is high temperature, there is a problem that can not obtain a great effect. there was.

More specifically, if the burner is ignited inside the firebox to heat the tube containing the heat medium oil, the boiler tube is heated and its heat and burned smoke are discharged in communication through the space between the boiler tube and the main body. do.

At this time, the external air is introduced to ignite the oil of the burner, and the conventional burner is a factor that cools the inside of the boiler by introducing external cold air.

Therefore, the conventional boiler described above is a situation in which a problem of deteriorating efficiency and productivity due to heat loss generated by the introduction of cold air when the burner is ignited to heat the boiler.

In addition, conventional industrial or power boilers generally emit harmful exhaust gases, that is, nitrogen oxides (NOx), carbon monoxide (CO), sulfur oxides (SOx) and the like.

In order to treat NOx and CO among these harmful gases, an exhaust gas purification apparatus including a catalyst is generally used.

Therefore, conventionally, as a means for appropriately maintaining the temperature of the catalyst, high-temperature exhaust gas bypasses the economizer, or a combustion burner is installed outside or in the exhaust gas passage.

In this method, if the hot exhaust gas bypasses the coal blower, a bypass duct must be installed separately.

In addition, when the bypass burner is installed, the burner operation cost must be separately paid in addition to the fixed cost related to the burner installation.

On the other hand, in order to properly maintain the oxygen concentration, it was common to supply an excessive amount of air during combustion, but the excessive combustion air supply not only causes heat loss but also increases the amount of CO generated.

1. Republic of Korea Patent Publication No. 10-2014-0093618 (July 28, 2014)

The present invention is to solve the above problems, the technical gist of the steam boiler and the fruit boiler to ensure the high efficiency of the industrial boiler, the steam boiler is a burner table in the form of a double roaster is formed inside the water And the air and the fruit are formed to heat exchange with each other to promote a high thermal power, in particular, the steam boiler and the fruit boiler to control the on-off valves (first damper and second damper) provided in each by the selective control setting The purpose is to provide high productivity and high energy saving efficiency by easily changing the setting to a specific temperature or heat production value desired for each season or facility site as well as variable application.

In addition, the present invention is an optional embodiment, it can be installed by adding a white smoke reduction device to the rear end of the boiler, which reduces the white smoke and harmful substances (harmful gases) of the industrial boiler generated during combustion to reduce the environmental regulations Its purpose is to provide that the performance and safety of the boiler are greatly improved to be satisfied.

In order to achieve the above object, the present invention is provided with a high thermal power burner table 120 at the lower portion of the inner fire chamber 110 in which the inlet 111 is formed, and the bypass passage 112 is located at the other side opposite to the inlet 111. Is provided with a communication tube 130 is provided, the outer cylinder compartment 140 is provided on the outside of the inner cylinder chamber 110, the inner cylinder chamber 110 and the outer cylinder compartment 140 connected from the bypass passage (112). The primary hot air transport path (A) is formed below the inner diaphragm (141), and the secondary hot air transport path (B) is in the orthogonal direction at the front end portion of the inlet port 111 passing the primary hot air transport path (A). Is formed to be partitioned, and the bundle tube 143 is arranged on the outer circumferential surface of the inner tube 110 between the partition plate 142 in the upper portion via the secondary hot air transport path (B), the bundle tube 143 Between the partition plate 142 except the heat exchange water is formed to be filled under the vapor layer, The heat passing through the pipe 143 causes the steam generated while heating the heat exchange water to be discharged to the steam pipe 144, but the heat passing through the bundle pipe 143 causes the exhaust pipe 145 to be discharged to the outside. A steam boiler (100) is formed, and the first damper (150) is provided on one side of the exhaust pipe (145); The boiler housing 210 having a through hole 211 is disposed so that the communication tube 130 is coupled to the same axis, but the fruit conveying tube 220 wound in a coil form is inside the boiler housing 210. A discharge pipe 240 having a second damper 230 is formed on the other side opposite to the through hole 211, and the outlet pipe 221 is formed to have a branch 221 and an outlet 222, and the discharge pipe 240 is a steam boiler. The fruit boiler 200 to be exhausted to the chimney 10 after being integrated by a connecting pipe 250 merged with the exhaust pipe 145 of the; It is made up.

Thus, the steam, fruit-linked composite boiler system is formed so that the white smoke reduction device 300 is further provided at the rear end of the connection pipe (250).

At this time, the burner table 120 is to be composed of the first roaster 121 and the second roaster 122, the first roaster 121 of the ladder structure so that the heat medium and the compressed air can be simultaneously supplied and circulated It is formed to be provided with a heat medium conveying pipe 121-1 and an air supply pipe 121-2, and the heat medium conveying pipe 121-1 is provided with a plurality of horizontal main pipes 121 incorporating an air supply pipe 121-2. -11) the partition plate 121-12 is formed in the inner space so that the heat medium transfers the crossover pipe 121-13 in a zigzag and is formed to protect the inner air supply pipe 121-2 from overheating, and the air supply pipe The compressed air injection nozzles 121-21 are formed on a line running horizontally with the cross pipe 121-13 so as to promote high firing power during combustion of the fuel. 122 is a heating pipe orthogonal to the plurality of tower pipes 122-1 having alternating partition walls 122-2. 122-3) is formed so that the heat medium connected to the heat medium transfer pipe 121-1 is circulated in a zigzag manner so that radiant heat is heated when the fuel is ignited.

As such, the industrial boiler of the present invention is connected to the steam boiler and the fruit boiler to ensure high efficiency of the industrial boiler, the steam boiler is a burner table in the form of a double roaster is formed inside the water and air and fruit to each other The heat exchanger is formed to promote high thermal power, and in particular, the steam boiler and the fruit boiler allow to control the on-off valves (first damper and second damper) respectively provided by the selective control setting. It is easy to change the setting to specific target temperature or heat production value as well as variable application, which has high productivity and energy saving efficiency.

In addition, the present invention can be installed by adding a white smoke reduction device to the rear end of the boiler, which is formed to reduce the white smoke and harmful substances (harmful gas) of the industrial boiler generated during combustion to meet the environmental regulations allowance, boiler This has the effect of greatly improving the performance and safety of use.

1 is an overall view of a boiler system according to the present invention,
2 is an enlarged side view of the main part of FIG. 1;
3 to 6 is an exemplary view of a burner table according to the present invention,
7 to 8 is an exemplary view showing a white smoke reduction device according to the present invention,
9 is an exemplary view showing another embodiment of a compressed air injection nozzle according to the present invention.

The following describes the present invention in more detail with reference to the accompanying drawings.

First, as shown in Figures 1 to 8, the present invention is composed of a steam boiler 100 and a fruit boiler 200.

Thus, the steam boiler 100 is to be provided with a high thermal power burner table 120 in the lower portion of the inner fire chamber 110 in which the inlet 111 is formed, the bypass passage 112 on the other side opposite to the inlet 111 Is provided with a communication tube 130 is provided.

At this time, the outer cylinder compartment 140 is provided on the outer side of the inner cylinder chamber 110, but the lower portion of the diaphragm 141 between the inner cylinder chamber 110 and the outer cylinder compartment 140 connected from the bypass passage 112, the primary Hot air transport path A is formed.

In addition, the secondary hot air transport path (B) is formed at the front end portion of the inlet 111 side passing through the primary hot air transport path (A) to be partitioned in the orthogonal direction.

Thus, the upper portion via the secondary hot air transport path (B) is formed so that the bundle tube 143 is disposed on the outer peripheral surface of the inner chamber 110 between the partition plate 142.

At this time, the heat exchange water is formed between the partition plates 142 except for the bundle tube 143 to be filled under the vapor layer, and the heat generated after the bundle tube 143 heats the heat exchange water to form a steam tube ( 144) to be discharged.

Thus, the heat passing through the bundle pipe 143 is formed to the third hot air transport path (C) so that the exhaust pipe 145 is discharged to the outside.

At this time, one side of the exhaust pipe 145 is formed to be provided with a first damper 150 is formed so that the opening and closing adjustment according to the set temperature or thermal efficiency setting while interlocking with the fruit boiler to be described later.

Accordingly, the burner table 120 includes a first roaster 121 and a second roaster 122.

At this time, the first roaster 121 is formed to be provided with a heat transfer pipe 121-1 and the air supply pipe 121-2 of the ladder structure so that the heat medium and the compressed air can be simultaneously supplied and circulated.

Thus, the heat medium transfer pipe (121-1) forms a partition plate (121-12) in the interior space of the plurality of horizontal main pipe (121-11) in which the air supply pipe (121-2) is built, the heat medium is cross-type The internal air supply pipe 121-2 is protected from overheating while the pipes 121-13 are transferred in a zigzag.

At this time, the air supply pipe (121-2) is a compressed air injection nozzle (121-21) is formed on the line running in parallel with the cross-pipe (121-13) is formed to promote a high heating power during the combustion of the fuel.

In addition, the compressed air injection nozzles 121-21 are formed to be assembled in a direction orthogonal to the furnace on the line of the air supply pipe 121-2.

At this time, a coupler 121-22 having a female thread is formed in communication with the air supply pipe 121-2 in the space between the cross pipe 121-13 and the air supply pipe 121-2 so as to communicate with the external thread 121-211. It is preferable to allow the compressed air injection nozzle 121-21 having a) to be assembled with the coupler 121-22 opened to the outer circumferential surface of the crossover pipe 121-13 in a screwing manner.

Accordingly, the compressed air injection nozzles 121-21 are formed with diameter reducing pressure ends 121-213 on longitudinal lines adjacent to the injection holes 121-212, and a plurality of scattering holes are formed on the pressure end circumferential surface. (121-214) is formed, and the air pressure injected through the pressure stage of the diameter narrower than the set inner diameter is basically formed by the air injection at a higher pressure through the Venturi principle.

In this case, the scattering holes formed on the outer circumferential surface of the pressurizing end are formed so that a part of the air injected at high pressure is discharged freely to the periphery of the injection hole, so that the thermal power can be expanded more smoothly while the fuel is incinerated. .

In addition, the second roaster 122 has a plurality of heating pipes (122-3) orthogonal to the plurality of tower pipes (122-1) having an alternating partition (122-2) is formed, the heat transfer pipe ( 121-1) is circulated to the zigzag heating medium is formed so that the radiant heat is heated when the fuel is ignited.

That is, the burner table has a structure divided into a lower first roaster (double-pipe roaster body) and an upper second roaster (fluid heating roaster) or an integrally connected structure.

At this time, the first roaster is to receive the heat medium from any one end, the air supply pipe is formed in the inside of the double pipe is formed so as to spray compressed air toward the fire chamber (incineration chamber), the outer pipe of the double pipe The heat medium transfer pipe is formed to prevent heat generation (melting or burning) of the internal air supply pipe.

Thus, the second roaster 122 is a place where the fuel is substantially ignited, it is formed so that the radiant heat generated to transfer the heat source to the heat exchange water (and steam generation) and the fruit boiler in the outer cylinder compartment.

On the other hand, the fruit boiler 200 is formed so that the boiler housing 210 having a through hole 211 is arranged so that the communication tube 130 is coupled in the same axis.

At this time, the inside of the boiler housing 210 is formed so that the fruit delivery pipe 220 wound in a coil shape has a branch with an inlet 221 and an outlet 222.

Accordingly, the discharge pipe 240 having the second damper 230 is formed on the other side opposite to the through hole 211, and the discharge pipe 240 is connected to the exhaust pipe 145 of the steam boiler. It is formed so that it can be exhausted to the chimney 10 after being integrated by.

Thus, the steam, fruit-linked composite boiler system is formed so that the white smoke reduction device 300 is further provided at the rear end of the connection pipe (250).

At this time, the white smoke reduction device 300 is a cylindrical tube of a double tube form, the outer periphery of the cylindrical tube is formed with a compartment 320 that can accommodate the steam introduced from the steam supply pipe (310).

Thus, the inner space of the compartment 320 to form a central steam pipe 330 that can be filled with steam, the compartment 320 and the central steam pipe 330 is in communication with each other by the connection pipe 340 It is formed to form an integrated white smoke reduction device (300).

At this time, it is preferable that the outer cylinder with a heat insulating material is formed on the outer peripheral surface of the compartment.

Thus, the steam in the compartment is preferably such that the steam is provided through the steam pipe 144 of the steam boiler.

In addition, the flange 350 is formed on the upper and lower ends of the white smoke reduction device 300 is formed to be assembled with the chimney 10. This is to facilitate the cleaning and construction work.

Accordingly, the smoke reduction device 300 is provided with a dehumidifier 380 for airflow staying on the upper and lower transport paths 370, respectively, to extend the residence time of the exhaust gas in the compartment 320 and the central steam pipe 330. It is formed to be.

In addition, the central steam pipe 330 is formed to form a downward concave curved portion 331 on the lower end side to facilitate the downward diffusion of the rising exhaust gas.

Thus, the multi-400 is formed on the outside of the drying chamber, the multi-400 is a harmful substance exhaust pipe 410 and hot air exhaust pipe to remove the fumes and harmful substances of the combustion exhaust gas from the rear end of the steam, fruit boilers 420 are configured to be formed respectively.

At this time, the harmful substance exhaust pipe 410 is formed so as to communicate with the lower end of the smoke reduction device 300, the central steam pipe 330 and compartment during the transfer of the exhaust gas containing moisture by the cleaning scrubber filter 430 ( It is formed to be dried while passing through the interspace passage 360 of 320.

Thus, the hot air exhaust pipe 420 is formed to communicate with the upper end of the white smoke reduction device 300 is formed to reduce the white smoke with the exhaust gas via the white smoke reduction device 300.

That is, the multi is a method of catching white lead, and divides the cylindrical cylinder in half and attaches the above-mentioned harmful substance exhaust pipe and hot air exhaust pipe, respectively.

At this time, the outer diameter (cylinder) of the white smoke reduction device 300 should be 1.5 times larger than the flue diameter will be a slow flow rate.

In addition, upper and lower ends of the transfer path of the white smoke reduction device 300 may be equipped with a demister (iron mesh) to lower the air flow rate of the exhaust gas.

For example, the exhaust gas transported at a speed of 100 is reduced at a speed of about 70 while passing through the white smoke reduction device 300. (If the flow rate is low, the air stays and is dried.)

At this time, the temperature of the multi is about 180 ~ 204 ℃, exhaust gas passing through the cleaning scrubber filter is a harmful gas while staying at a certain portion while passing through the white smoke reduction device consisting of a central steam pipe and a compartment (temperature of about 130 ℃). Is reduced.

On the other hand, the lower side of the demister of the present invention is added to the airflow recruiting cone 390 of the funnel-like funnel in the form of upper and lower light is exhaust gas discharged from the harmful substance exhaust pipe 410 is the central steam pipe 330 is It concentrates on the side curved part 331, and it is formed so that the eddy current and the backflow phenomenon of the rising exhaust gas stream may be doubled.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

100 ... steam boiler 110 ... firebox
111 ... inlet 112 ... bypass passage
120 ... burner table 130 ... communication tube
140 ... outer compartment 141 ... diaphragm
142 ... partition plate 143 ... bundle tube
144 ... Steam Pipe 145 ... Exhaust Pipe
150 ... first damper 200 ... heating boiler
210 ... boiler enclosure 211 ... through hole
220 ... fruit feed pipe 221 ... opening
222 ... outlet 230 ... second damper
240 ... outlet pipe 250 ... connector
300 ... smoke reduction device 400 ... multi

Claims (3)

The high thermal power burner table 120 is provided below the inner cylinder chamber 110 in which the inlet 111 is formed, but the communication tube 130 having the bypass passage 112 is formed on the other side opposite to the inlet 111. The outer cylinder compartment 140 is provided on the outside of the inner cylinder fire chamber 110, but the lower portion of the diaphragm 141 between the inner cylinder fire chamber 110 and the outer cylinder compartment 140 connected from the bypass passage 112 is primarily A hot air transport path (A) is formed, the secondary hot air transport path (B) is formed in the front end portion of the inlet 111 side passing through the primary hot air transport path (A) so as to be divided in an orthogonal direction, the secondary hot air The bundle tube 143 is disposed on the outer circumferential surface of the inner chamber 110 between the partition plates 142 between the partition plates 142 between the partition plates 142 except for the bundle pipe 143. Heat exchange water is formed to be filled under the vapor layer, the heat passing through the bundle tube 143 heats the heat exchange water While the generated steam is discharged to the steam pipe 144, the heat passing through the bundle tube 143 is formed to the third heat transfer path (C) so that the exhaust pipe 145 is discharged to the outside, the exhaust pipe 145 Steam boiler 100 to be provided with a first damper 150 on one side of the line; The boiler housing 210 having a through hole 211 is disposed so that the communication tube 130 is coupled to the same axis, but the fruit conveying tube 220 wound in a coil form is inside the boiler housing 210. A discharge pipe 240 having a second damper 230 is formed on the other side opposite to the through hole 211, and the outlet pipe 221 is formed to have a branch 221 and an outlet 222, and the discharge pipe 240 is a steam boiler. The fruit boiler 200 to be exhausted to the chimney 10 after being integrated by a connecting pipe 250 merged with the exhaust pipe 145 of the; In the steam, fruit interlocking composite boiler system having a high thermal power structure is configured,
The steam, fruit-linked composite boiler system is further provided with a white smoke reduction device 300 at the rear end of the connection pipe 250, the burner table 120 to the first roaster 121 and the second roaster 122 The first roaster 121 is configured to be provided with a heat transfer pipe 121-1 and an air supply pipe 121-2 having a ladder structure so that the heat carrier and compressed air can be simultaneously supplied and circulated. The heat medium conveying pipe 121-1 forms a partition plate 121-12 in an inner space of the plurality of horizontal main pipes 121-11 in which the air supply pipe 121-2 is incorporated, so that the heat medium is a cross pipe 121. The air supply pipe 121-2 is formed to protect the internal air supply pipe 121-2 from overheating while transferring -13) in a zigzag, and the compressed air is lined horizontally with the crossover pipe 121-13. Injection nozzles (121-21) are formed to promote a high thermal power during combustion of the fuel, the second furnace The rotor 122 has a plurality of heating pipes 122-3 orthogonal to each other based on the plurality of tower pipes 122-1 having alternating partition walls 122-2 and the heat medium transfer pipe 121-1. The heat medium connected in a circulating manner is transferred to zigzag and is formed so that radiant heat is heated when the fuel is ignited. A stage (121-213) is formed, and the pressurized end circumferential surface, a plurality of scattering holes (121-214) having a high heating power structure, characterized in that the steam, fruit-linked composite boiler system.
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