KR101620958B1 - Method for manufacturing once through boiler including a pallet combustion chamber - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a method of manufacturing a perfume-type boiler provided with a pellet combustion chamber. The method includes the steps of: (a) modifying the existing upright type flow-through type boiler to remove the gas or oil burner 107 disposed on the upper side and sealing the burner removing portion with the cover 101; (b) removing the central portion of the lower portion of the flow-through type boiler other than the heat exchange portion (110); (c) a pellet combustion chamber (160) comprising an outer wall formed of refractory bricks; And pellet feeding units 200 and 220 for feeding the pellets 210 and pellet feeding units 230 and 240 for feeding the pellets 210 to the pellet combustion chamber 160 are formed in the combustion chamber 160 The pellet transferring part is connected to the pellet transferring part of the combustion chamber 160 and the pellet transferring part. And the pellet combustion chamber is modified. In this case, the gas flame or oil burner at the upper part of the conventional upflow type boiler is removed, and the removed part is sealed with the cover. And the pellet combustion chamber is provided at the lower portion of the outer tube to remove the central portion of the lower tube and use a pallet relatively cheap compared to gas and oil in the combustion chamber without using gas or oil of the upright type boiler as fuel, , Camping pension or farmhouse boiler, and it has the effect of saving energy of gas and oil.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for manufacturing a boiler having a pellet combustion chamber,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a perfume-type boiler provided with a pellet combustion chamber, and more particularly, to a method of manufacturing a perfume-type boiler using a pellet, A gas burner or an oil burner is removed from the existing upright type flow-through type boiler, the removed part is sealed with a cover, the central part of the lower end of the flow-through type boiler other than the heat exchange part is removed, And a pellet combustion chamber provided with a combustion chamber and using pellets as wood-compressed fuel in a combustion chamber without using gas or oil of an upright type flow-type boiler as a fuel.

When the gas fuel is used, the gasification burner and the combustion chamber are provided at the center of the upper part of the boiler, and the water is filled in the heating water tank with a considerable pressure by the supply water tank. The flame circulates hot water below the water tube and the hot water above the water tube and discharges it by the heat exchanger system to warm the water in the hot water tank, thereby providing the heating and hot water function with hot water.

1 is a cross-sectional view of a conventional non-pressurized hot water boiler for perfusion.

The hydro-pressure hot water boiler for perfusion according to the prior art 1 has a gas burner at the center of the upper part of the boiler, a combustion chamber at a central portion thereof and a discharge pipe, and a hot water tank 2 The water level sensor 5 and the control device C are connected to the atmosphere by communicating with the atmosphere through a communicating tube 7 formed above the heating water tank 2, The water level 29 of the heating water tank 2 is positioned below the communicating tube 7 by the valve 6.

The pressurized hot water boiler for perfusion is heated by the burner 3 with the water of the heating water tank 2 supplied by the elevated water tank 1 provided with the float valve 1 ' Controls the burner 3 so that the water of the heating water tank 2 is heated by the heat exchanger 2 and the upper and lower sides of the heating water tank 2 are subjected to two heat exchanging operations including spiral tubes 9 and 9 ' (10, 10 '); Heating water circulating in the heating water circulating the spiral tube 9 and the radiator 11 or the spiral tube 9 'and the low-temperature bath 12 is connected to the heat exchangers 10 and 10' The water in the heating water tank 2 is supplied to the lower part of the lower tank 12 through the communicating tube 7 so that the upper part of the heating water tank 2 is opened to the atmosphere, Is controlled by the known level sensor 5 and the control device C and the control valve 6. Reference numerals 15 and 16 denote water level sides, reference numerals 13, 14, 17, 18 and 19 denote circulation pumps, 20 denotes an expansion tank, reference numerals 23 and 24 denote drain valves, reference numeral 25 denotes an air cock, reference numeral 26 denotes a main valve, , 28 is a temperature sensor.

This design is achieved by first closing the manual valves 15 and 16 and turning on the power switch of the control unit C and then opening the main valve 26 to start the control valve C by the control unit C, The water in the elevated water tank 1 is filled in the heating water tank 2 and the water level sensor 5 is installed on the side of the heating water tank 2 so that water is filled in the heating water tank 2 at a constant water level The control valve C is closed by the control device C and the burner 3 is ignited and the flame is sprayed. Therefore, the water in the heating water tank 2 is heated to about 80 ° C-90 ° C after a predetermined time, and the temperature sensor 8 senses the temperature of the water in the heating water tank 2 so that the control device C reduces the thermal power of the burner 3, The heat exchanger 10 or 10 'is in communication with the heating water tank 2 so that the hot water heated in the water tank 2 is filled , And the hot water of the low-temperature bath (12) provides the heating or hot water function.

Water is also filled into the radiator 11 and the spiral tube 9 of the heat exchanger 10 by the expansion tank 20 having the float valve 1 ' It is necessary to open the air cock 25 to extract the air and to discharge the air through the radiator 11 and the spiral tube 9 of the heat exchanger 10 by the circulation pump 17, On the other hand, the water in the elevated tank 1 is stored in the low-temperature tank 12 and the water stored by the circulation pumps 18, 19 is circulated inside the spiral tube 9 ' In the prior art 1, water heated to about 80 DEG C to 90 DEG C on the upper side of the heating water tank 2 is circulated through the heat exchanger (13, 14) by the convection pumps 13, 10 ', 10') to heat the spiral tubes 9, 9 'and then re-enter the heating water tank 2 It will be convected.

In the prior art 1, water in the spiral tubes 9 and 9 'is heated up to about 60 ° C. Therefore, it is possible to obtain sufficient heating heat from the radiator 11, hot water can be used in the low- A uniform flow rate can be obtained by using the circulation pump 19 in consideration of the case where the length of the pipe to be supplied is long. The temperature sensor 27 provided above the low-temperature bath 12 operates the circulation pump 18 when the stored water temperature is low, so that water in the low-temperature bath 12 circulates through the spiral tube 9 ' And when the water temperature above the low-temperature bath 12 is high, the operation of the circulation pump 18 is stopped, so that the water temperature in the low-temperature bath 12 is prevented from rising further, If the temperature of the room is excessive, the temperature sensor 28 senses the temperature and the circulation pump 17 is stopped, so that the room temperature can be kept constant. When the control device C or the control valve 6 fails, the control valve 6 is closed. At this time, the water can not be supplied to the heating water tank 2, The manual valve 16 is closed and the water is manually supplied. At this time, when the water level of the water in the heating water tank 2 is inadvertently exceeded, the water level can be maintained through the communicating pipe 7.

The boiler uses various fuels such as gas, oil and coal (briquette). In case of gas boiler, it has a gas burner on the upper part of the boiler and it is heated by the upper gas burner. The water in the heating water tank is heated up, Use hot water for heating and hot water.

Perfume type boilers are classified into upright type and overflow type boilers. Upright type of flow type boilers are vertical upright type boilers. They occupy a smaller area than large boilers and are used in small businesses.

The wobble boiler is a horizontally upright boiler, which occupies a larger area than an upright type boiler and is used as a large workplace and industrial boiler.

However, the conventional fuel of the conventional type boiler uses gas or oil, but as the price of oil and gas rises, the flow rate of the fuel using a low-cost fuel such as a pallet, which is a wood compressed fuel, Type boiler boiler became necessary.

Utility Model No. 20-1987-0004169 Patent Publication No. 10-2008-0074828

In order to solve the above-mentioned problems, an object of the present invention is to manufacture a conventional flow-through type boiler by using a pallet, which is an inexpensive fuel compared to a gas burner or an oil burner, A gas burner or an oil burner disposed in the upper portion of the boiler is removed from the boiler, the removed portion is sealed with a cover, the central portion of the lower end of the boiler other than the heat exchanging portion is removed, and a pellet combustion chamber And a pellet combustion chamber in which a pallet as a wood-compressed fuel is used in a combustion chamber without using gas or oil of an upright-type perfume-type boiler as a fuel.

In order to accomplish the object of the present invention, there is provided a method for manufacturing a perfume-type boiler provided with a pellet combustion chamber, comprising the steps of: (a) removing a gas or oil burner disposed at an upper portion of an upright type perfume boiler; (b) removing the central portion of the lower portion of the flow-through type boiler other than the heat exchange portion (110); (c) a pellet combustion chamber (160) comprising an outer wall formed of refractory bricks; And (d) a pellet feeder for feeding the pellets and a pellet feeder for feeding the pellets to the pellet combustion chamber, wherein the pellet feeder is formed at one side of the combustion chamber 160, and the pellet feeder and the combustion chamber 160 to the pellet transfer port.

In the method of manufacturing the perfusion type boiler provided with the pellet combustion chamber according to the present invention, the conventional upright type perfusion type boiler is modified to manufacture the perfusion type boiler by using a pallet which is less expensive than gas and oil. In the existing upright type flow-through type boiler, after removing the gas burner or the oil burner disposed on the upper part of the boiler, the removed part is closed with the cover, the central part of the lower end other than the heat exchanging part of the boiler is removed, And an upright type flow-through type boiler using pellets as wood-compressed fuel used as renewable energy in a combustion chamber provided at the lower part of the outer tube, without using gas or oil of the upright type boiler as fuel.

It also reduces the cost of expensive gas or oil fuel used in conventional upright type boilers and enables upright type flow boilers to be operated using pellets of compressed wood, a renewable energy source that is relatively inexpensive compared to gas and oil fuels. So that it can be used in a power house, a campsite pension, or a farmhouse boiler.

1 is a cross-sectional view of a conventional flow-through type hot water boiler.
FIG. 2 is a view showing a process of manufacturing a flow-through type boiler equipped with a pellet combustion chamber by modifying a flow-through type boiler according to the present invention.
3 is a cross-sectional view showing a flow-through type boiler provided with a pellet combustion chamber using pellets supplied from a pellet feed portion and a pellet feed portion.
4 is a plan view of an air supply pipe for supplying air from an air supply device through a plurality of nozzles in a pellet combustion chamber having an outer wall portion formed of a circular refractory brick of the flow-through boiler of FIG. 4;
5 is a front view of a flow-through type boiler equipped with the pellet combustion chamber of the present invention.
6 is a flowchart illustrating a method of manufacturing a flow-through type boiler provided with a pellet combustion chamber according to the present invention.

The objects, features and advantages of the present invention will become more apparent from the detailed description and the preferred embodiments with reference to the accompanying drawings. In the drawings, the same reference numerals are given to the same components as they are in the drawings, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view showing a process of manufacturing a flow-through type boiler equipped with a pellet combustion chamber by modifying a flow-through type boiler according to the present invention.

In the conventional conventional flow-through type boiler, the shape of the outer tube 120 before the combustion chamber 160 is disposed is a gas or oil burner disposed at the upper portion and a sealed structure at the lower portion.

The upright type perfume boiler of the present invention may be modified such that the gas or oil burner 107 disposed on the upper portion of the outer tube 120 is removed before the combustion chamber 160 is disposed by modifying the existing perfusion type boiler, The peripheral portion of the lower end of the flow-through type boiler other than the heat exchange portion 110 is removed and a pellet type combustion boiler having the pellet combustion chamber 160 at the lower portion of the outer cylinder 120 is manufactured .

6 is a flowchart illustrating a method of manufacturing a flow-through type boiler provided with a pellet combustion chamber according to the present invention.

A method of manufacturing a perfusion type boiler provided with a pellet combustion chamber of the present invention comprises the steps of (a) modifying a conventional upright type flow-through type boiler to remove a gas or oil burner 107 disposed thereon, ; (b) removing the central portion of the lower portion of the flow-through type boiler other than the heat exchange portion (110); (c) a pellet combustion chamber (160) comprising an outer wall formed of refractory bricks; And pellet feeding units 200 and 220 for feeding the pellets 210 and pellet feeding units 230 and 240 for feeding the pellets 210 to the pellet combustion chamber 160 are formed in the combustion chamber 160 The pellet transferring part is connected to the pellet transferring part of the combustion chamber 160 and the pellet transferring part.

The step (c) includes the steps of (c1) forming a flame space part 170 for burning the pellets 210 at the center of the combustion chamber 160, and refracting bricks for blocking the flame space part 170 from the outside Forming an outer wall portion (140); (c2) forming the ash receiving part (180) provided in the combustion chamber (160) below the flame space part (170); And (c3) disposing a combustion plate 185 having a mesh structure between the ash receiving unit 180 and the flame space unit 170. [

The step (c) includes: (c4) an air supply pipe 190 for supplying air to the lower portion of the combustion plate 185; and a plurality of Providing a plurality of nozzles (192); And (c5) an air supply device (191), and supplying air from the air supply device (191) to the air supply pipe (190) through a plurality of nozzles.

The center of the combustion space 130 formed at the center of the heat exchange unit 110 and the center of the flame space 170 of the combustion chamber 160 are arranged to coincide with each other; A cross sectional area of the combustion chamber 160 is smaller than a cross sectional area of the outer cylinder 120; And the combustion chamber (160) are installed together in the installation area of the outer tube (120) while being installed on the lower side of the outer tube (120).

The step (c) includes the steps of: (c6) forming a plurality of refractory bricks on the outer wall of the combustion chamber 160, wherein a part of the refractory bricks includes a cooling water storage part 150 containing cooling water; And (c7) a cooling water supply device for supplying cooling water to the cooling water storage part (150).

The step (d) comprises: (d1) forming a pellet feeder (200, 220) for feeding the pellet (210); And (d2) forming pellet transferring parts (230, 240) for transferring the supplied pellets (210) to the pellet combustion chamber (160)

The pellet transferring unit for transferring the pellets 210 to the combustion chamber 160 includes a primary transferring unit 222, a secondary transferring unit 221 and a secondary transferring unit 220 and a secondary transferring unit 230 and 240. The primary transferring unit includes the pellet supplying unit The pellets 210 are transferred to the secondary transferring unit 200 and the secondary transferring unit transfers the pellets 210 transferred through the primary transferring unit to the combustion chamber 160.

The primary transfer part includes a first outer pipe 220, a screw 221 disposed inside the outer pipe, and a motor 222 for rotating the screw 221. The motor 222 rotates the screw 222, Transferring the pellets (210) to the secondary transfer part while rotating the pellet (221); Wherein the secondary transfer part comprises a second outer pipe (240) and an air generator for supplying air to the second outer pipe, and the pellets (210) supplied from the primary transfer part are transferred from the secondary transfer part (160).

Prior to the placement of the combustion chamber 160, a gas burner or oil (not shown) disposed on the upper portion of the outer cylinder 120 in a conventional flow-through type boiler, as shown in FIG. 1, After the burner 107 is removed, the removed portion is sealed with the cover 101, the central portion of the lower portion of the outer cylinder 120 is removed, and the pellet combustion chamber 160 is disposed at the lower end of the outer cylinder and the removed central portion .

The present invention relates to an upflow type boiler provided with a pellet combustion chamber at the lower portion of the outer tube of an upright type of boiler of the present invention, which is adapted to retrofit a conventional upflow type boiler to use a low-cost fuel as a pallet, A gas burner or an oil burner disposed on the upper portion of the boiler is removed from the existing upright type flow-through type boiler, and then the portion where the burner is removed is sealed with the cover 101, and the heat exchanging portion 110 And a pellet combustion chamber 160 at a lower portion of the outer cylinder 120 to use a pallet as a wood compression fuel in a combustion chamber without using gas or oil fuel of an upright type .

Pellets are used as renewable energy fuels and are wood-compressed fuels made by crushing and compressing wood waste, wood chips and wood.

An upflow type boiler having a pellet combustion chamber at a lower portion of the outer tube of an upright type of flow-through boiler is an upright type of boiler having an outer tube 120 surrounding the heat exchanger 110, A combustion space part 130 formed in the combustion chamber 130; A pellet combustion chamber 160 provided at a lower end of the flow-regulating boiler for burning pellets by providing a high heat source to the combustion space 130, and a pellet conveying unit 160 for conveying the pellets 210 to the pellet combustion chamber 160. [ And pellet feeders 200 and 220 for feeding the pellets 210 to the pellet feeders 230 and 240.

The pellet combustion chamber 160 includes a flame space 170 for burning the pellets 210 at the center and an outer wall 140 formed of refractory bricks for blocking the flame space 170 from the outside, And the ash receiving unit 180 provided in the combustion chamber 160 on the lower side of the space unit 170. The space between the ash receiving unit 180 and the flame space unit 170 is larger than the size of each pallet When the combustion plate 185 of a small mesh structure is disposed and the pellets 210 transferred to the mesh plate 185 are burned, the ashes of the burned pellets in the flame are burnt like a grill And passes through the combustion plate 185 having a mesh structure used as a drawing net and falls on the ash receiving unit 180.

The combustion plate 185 is provided between the ash receiving part 180 and the combustion space part 130 and has a mesh structure having a unit square smaller in diameter than the diameter of each pellet before being burned It is made of heat-resistant material.

When the pellets transferred to the combustion chamber 160 are burned, the heat exchange unit 110 of the heating water tank, in which the water is circulated by the water supply valve 11 in a cylindrical shape, circulates hot water on the lower cold water, The water directly heated in the direction of the valve 117 is directly used for heating and warming, or the hot water is warmed by using a heat exchange system and used for heating and warming. The discharge valve 117 is optionally provided when producing a flow-through type boiler using pellets.

The vertical diameter d1 of the outer tube portion is made larger than the vertical diameter d2 of the portion including the combustion chamber in the manufacture of the perfusion type boiler provided with the pellet combustion chamber.

4 is a plan view of an air supply pipe 190 for supplying air from the air supply device 191 through a plurality of nozzles 192 in a pellet combustion chamber having an outer wall formed by a circular refractory brick of the flow-through type boiler of FIG.

An air supply pipe 190 for supplying air to the lower portion of the combustion plate 185 and a plurality of nozzles 192 disposed on the surface of the air supply pipe 190 toward the flame space 170, And an air supply device 191 for supplying air to the air supply pipe 190.

The air supply device includes various devices such as a fan (FAN) and the like, but the drawings and explanations thereof are omitted.

The center of the combustion space 130 formed at the center of the heat exchange unit 110 and the center of the flame space 170 of the combustion chamber 160 are arranged to coincide with each other, Sectional area of the outer tube 120 is smaller than that of the outer tube 120. The combustion chamber 160 is installed below the outer tube 120 and is installed within the outer tube 120.

The refractory bricks on the outer wall of the combustion chamber 160 are formed of a plurality of layers, and a part of the refractory bricks includes a cooling water storage part 150 storing cooling water. The cooling water storage part 150 continuously supplies cooling water And a cooling water supply device (not shown) is further provided.

When the pellets 210 are burned by opening the door 171 of the combustion chamber 160 and surrounded by the refractory bricks of the outer wall portion 140 of the combustion chamber 160, If the temperature is raised by the hot flame, a cranking, which is a byproduct which is contained in the piece of wood, which is a material of the pellet, is generated at a high temperature. In order to prevent this, a cooling water is supplied to the upper side of the refractory bricks on the outer wall surrounded by the side surface of the combustion chamber 160 And a cooling water storage portion 150 for lowering the temperature of the combustion chamber 160.

The pellet transfer unit for transferring the pellets 210 to the combustion chamber 160 comprises a primary transfer unit 222, 221 and 220 and a secondary transfer unit 230 and 240. The primary transfer unit is connected to the pellet supply unit 200 The pellets 210 are transferred to the secondary transferring unit and the secondary transferring unit transfers the pellets 210 transferred through the primary transferring unit to the combustion chamber 160.

The primary transfer unit includes a first outer tube 220; A screw 221 disposed inside the outer tube and a motor 222 rotating the screw 221. The screw 221 is rotated according to the rotation of the motor 222, The pellets 210 are fed to the secondary transfer part,

The secondary transfer part includes a second outer pipe 240; And an air generator 230 for supplying air to the second outer pipe 240. The pellets supplied from the primary transferring unit are supplied from the secondary transfer unit to the combustion chamber 160 through air pressure .

The air generator 230 uses a turbo blower FAN and supplies the pellets supplied from the primary transfer part to the combustion chamber 160 from the secondary transfer part by the air pressure of the turbo blower FAN.

5 is a front view of a flow-through type boiler equipped with the pellet combustion chamber of the present invention.

The flow-through type boiler provided with the pellet combustion chamber further includes an ash receiving door (172) for opening the door (171) of the combustion chamber, igniting a pallet by burning with a lighter or the like, and collecting ash remaining after burning the pellet do. The ash receiving unit 180 has a separate space below the combustion chamber 160.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. The present invention can be variously modified or modified.

101: cover
107: Gas burner or oil burner
110: heat exchanger (heating water tank)
111: Water supply valve
117: discharge valve
120: Foreign Ministry
130: Combustion space part
140: outer wall portion
150: Cooling water storage part
160: Combustion chamber
170: Flame space section
180:
185:
190: air supply pipe
200: Pellet feeder
210: Pellet
220: First appearance
221: Screw
222: Motor
230: Turbo blower (FAN)
240: Second appearance
280: Support

Claims (7)

1. A method of retrofitting an upright type flow-through type boiler in which a gas or oil burner is installed on an upper portion of an outer tube portion (120) surrounding a heat exchange portion (110), which is a conventional upright type,
(a) retrofitting a conventional upright type flow-through boiler to remove gas or oil burners 107 disposed thereon;
(a1) sealing the portion from which the gas or oil burner is removed with a cover (101);
(b) removing the central portion of the lower portion of the flow-through type boiler other than the heat exchange portion (110);
(c) a pellet combustion chamber (160) comprising an outer wall formed of refractory bricks; And
(d) pellet feeding parts 200 and 220 for feeding the pellets 210 and pellet feeding parts 230 and 240 for feeding the supplied pellets 210 to the pellet combustion chamber 160, Forming a pellet transferring port on one side of the combustion chamber 160 and connecting the pellet transferring unit to the pellet transferring unit of the combustion chamber 160,
The step (c)
(c1) a flame space part 170 for burning the pellets 210 is formed at the center of the pellet combustion chamber 160 and the outer wall part 140 is formed by refractory bricks for blocking the flame space part 170 from the outside, The flame space part 170 is formed to coincide with the center of the combustion space part 130 formed at the center of the heat exchange part 110 to form the pellet combustion chamber in the lower central part of the existing upright type ;
(c2) forming the ash receiving part (180) provided in the combustion chamber (160) below the flame space part (170);
(c3) placing a combustion plate (185) having a mesh structure between the refractory receiving portion (180) and the flame space portion (170);
(c4) An air supply pipe 190 for supplying air to the lower portion of the combustion plate 185 and a plurality of nozzles 192 disposed on the surface of the air supply pipe 190 toward the flame space 170 ;
(c5) providing an air supply device (191), supplying air from the air supply device (191) to the air supply pipe (190) through a plurality of nozzles;
(c6) the refractory bricks on the outer wall of the combustion chamber 160 are formed of a plurality of layers, and a part of the refractory bricks includes a cooling water storage part 150 containing cooling water; And
(c7) a cooling water supply device for supplying cooling water to the cooling water storage part (150)
The step (d)
(d1) forming pellet feeds (200, 220) to feed pellets (210);
(d2) forming pellet transferring parts (230, 240) for transferring the supplied pellets (210) to the pellet combustion chamber (160)
The pellet transferring unit for transferring the pellets 210 to the combustion chamber 160 includes a primary transferring unit 222, a secondary transferring unit 221 and a secondary transferring unit 220 and a secondary transferring unit 230 and 240. The primary transferring unit includes the pellet supplying unit The pellets 210 are transferred to the secondary transferring unit 200. The secondary transferring unit transfers the pellets 210 transferred through the primary transferring unit to the combustion chamber 160,
The primary transfer part includes a first outer tube 220, a screw 221 disposed inside the first outer tube, and a motor 222 for rotating the screw 221. The first transfer part 220 is rotated by the rotation of the motor 222 Transferring the pellets 210 to the secondary transfer part while the screw 221 rotates;
The secondary transfer part includes a second outer pipe 240 and an air generator for supplying air to the second outer pipe. The pellets 210 supplied from the primary transfer part are discharged from the secondary transfer part to the combustion chamber 160 And supplying the pellet combustion chamber to the pellet combustion chamber.









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