KR100762341B1 - Gas heater and dryer therewith - Google Patents

Abstract

A gas heater and a dryer having the same are provided to reduce generation of noxious gas and improve energy efficiency by re-burning noxious gas generated by an incomplete combustion, and supply thermal energy into a drum by using inexpensive gas. A gas heater includes a cabinet; a gas pipe(130) arranged at one side of the cabinet so as to supply gas into the cabinet; a nozzle(140) arranged in the gas pipe; a valve(150) arranged at one side of the gas pipe; a mixing pipe(120) arranged at one side of the nozzle so as to mix gas and air; a spark plug(170) arranged outside the mixing pipe; a guide pipe arranged outside the mixing pipe so as to guide heated air into a predetermined space; and a mixing unit(300) arranged in the guide pipe so as to generate vortex flow in air flowing along the guide pipe.

Description

GAS HEATER AND DRYER THEREWITH}

1 is a configuration diagram showing a flow path structure of a dryer according to the prior art.

Figure 2 is a partial cutaway perspective view of a dryer according to the prior art.

Figure 3 is a block diagram showing a dryer having a gas heater according to an embodiment of the present invention.

4 is an exploded perspective view showing a gas heater according to an embodiment of the present invention.

5 is a partially enlarged view illustrating a mixing tube of a gas heater according to an embodiment of the present invention.

6 is a perspective view showing a suction amount adjusting means of the gas heater according to an embodiment of the present invention.

7 is a perspective view showing a bracket of a gas heater according to an embodiment of the present invention.

8 is a plan view illustrating a suction channel of a dryer having a gas heater according to an embodiment of the present invention.

9 is a side sectional view showing a circulation passage of a dryer having a gas heater according to an embodiment of the present invention.

10 is a plan view illustrating an exhaust passage of a dryer having a gas heater according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 54: discharge port

60 drum 62 support panel

62a: through hole 64a: outlet

70: intake pipe 80: exhaust pipe

82: exhaust fan 84: connector

86 housing 90 drive motor

100: heater 110: guide tube

120: mixing tube 124: mixing section

130 gas pipe 140 nozzle

150: valve 160: bracket

170: spark plug 180: flame holder

190: suction amount control means 200: seating means

230: fastening means 300: mixing means

310: support 320: fan

330: coupling ring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas heater, and more particularly, to a gas heater and a dryer having the same, wherein the harmful gas generated by incomplete combustion is re-burned, thereby suppressing generation of harmful gas and improving energy efficiency.

1 is a configuration diagram showing a flow path structure of a dryer according to the prior art, Figure 2 is a partial cutaway perspective view showing a dryer according to the prior art.

1 and 2, the dryer according to the prior art forms the appearance of the dryer and the case (2) is formed in the front door to the object, the rotatable disposed inside the case (2) and the blood inside The drum 12, which is opened in the front-rear direction so that the dry matter is accommodated and the air passes therethrough, the heater 18 which is disposed inside the case 2 and heats the sucked air, and passes through the heater 18 An intake duct 20 for guiding heated air to the rear of the drum 12, an exhaust means 22 for discharging the turbid air while drying the object to the outside of the case 2, and the exhaust means ( 22 is provided with a blowing fan (not shown), a motor (not shown) and a belt 40 for rotationally driving the drum 12 and the blowing fan.

A lifter 11 is disposed on the inner circumferential surface of the drum 12 to lift and drop the object to be dried.

The exhaust means 22 has a lint duct 25 in which air in the drum 12 is sucked and a filter 24 is mounted to filter foreign matter, and the lint duct 25 communicates with the blower fan 30. It consists of a fan housing 26 enclosing the exhaust housing and an exhaust duct 27 having one end communicating with the fan housing 26 and the other end disposed outside the case 2.

Looking at the operation of the prior art configured as described above are as follows.

First, after the object is put into the drum 12, the door is closed and the dryer is operated. As the motor is driven, the drum 12 and the blowing fan rotate, and the heater 18 is also operated. Done.

At this time, as the drum 12 is rotated, the dry matter in the drum 12 is lifted by the lifter 11 and falls. In addition, the outside air is heated by high temperature and low humidity air while being sucked into the inside of the heater 18 by the blowing force generated when the blowing fan is rotated, and then the inside of the drum 12 through the intake duct 20. Is discharged.

After the high temperature and low humidity air supplied into the drum 12 is in direct contact with the object to be dropped, the air is dried and moved to the front end side of the drum 12 while being converted into air of low temperature and high humidity. It is discharged out of the dryer through the exhaust duct 27.

However, the dryer according to the prior art has a problem that it is difficult to shorten the time it takes for the heater to heat up after the drying operation is started because the coil is heated by the supply of electrical energy installed inside the pipe communicating with the intake duct. In addition, since relatively expensive electrical energy is used as a heat source, it is difficult to reduce the time and cost required for the drying operation.

The present invention has been made to improve the above problems of the prior art, a gas heater to reduce the time and cost required for the drying operation while reducing the ignition time using a relatively inexpensive energy source and the same The purpose is to provide a dryer provided.

It is an object of the present invention to provide a gas heater and a dryer having the same, which suppress the generation of harmful gases and improve energy efficiency.

Gas heater according to the present invention for solving the above problems is installed in the cabinet, one side of the cabinet, the gas pipe for supplying gas into the cabinet, the nozzle is installed inside the gas pipe, the valve is installed on one side of the gas pipe, A mixing tube installed at one side of the nozzle to mix gas and air, an ignition plug installed at the outside of the mixing tube to generate a spark, a guide tube installed at the outside of the mixing tube to guide the heated air to a predetermined space, and the It is characterized in that it comprises a mixing means which is installed in the guide tube to cause the vortex in the air moving along the guide tube.

In addition, the mixing means of the present invention is a coupling extending from the mixing tube into the guide tube, the fan is installed at one end of the support, and the other end of the support is coupled to the fitting surface is fitted to the circumferential surface of the mixing tube It characterized in that it comprises a ring.

In addition, the dryer provided with a gas heater according to the present invention is a cabinet, a gas pipe installed on one side of the cabinet to supply gas into the cabinet, a nozzle installed inside the gas pipe, a valve installed on one side of the gas pipe, the nozzle A mixing tube installed at one side to mix gas and air, an ignition plug installed at the outside of the mixing tube to generate a flame, a guide tube installed at the outside of the mixing tube to guide the heated air to a predetermined space, and the guide It is characterized in that it comprises a gas heater including a mixing means installed in the tube so that the vortex is generated in the air moving along the guide tube.

Hereinafter, an embodiment of a gas heater and a dryer having the same according to the present invention will be described in detail with reference to the accompanying drawings.

For convenience of explanation, the dryer will be described as an example. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

Therefore, definitions of these terms should be made based on the contents throughout the specification.

Figure 3 is a block diagram showing a dryer having a gas heater according to an embodiment of the present invention.

Referring to FIG. 3, the dryer according to the present invention forms a predetermined space, an opening is formed at one side, and a cabinet 50 formed with an inlet (not shown) and an outlet 54 is rotatably installed inside the opening. A drum (60) in which laundry is stored, a plurality of lifters (60a) installed on the inner wall of the drum (60) to rotate the laundry, and an air inlet pipe for guiding the air inside the cabinet (50) to the drum (60); 70, a heater 100 provided on one side of the intake pipe 70, an exhaust fan 82 (see FIG. 10) provided between the drum 60 and the discharge port 54, an exhaust fan 82 and the discharge port. The exhaust pipe 80 provided between the 54 and the drive motor 90 (refer FIG. 10) connected with the rotating shaft of the exhaust fan 82 is comprised.

Thus, when the power is applied to the drive motor 90 by the user's operation, the exhaust fan 82 is rotated to circulate the air, and the air introduced through the suction port is converted into hot air while passing through the heater 100. Then, the drum 60 is supplied into the drum 60 along the intake pipe 70, and the drying or sterilization operation of the laundry is performed while contacting the laundry in the drum 60.

Thereafter, the air discharged by the exhaust fan 82 is discharged to the outside through the discharge port 54 of the cabinet 50 along the exhaust pipe 80, thereby circulating the air.

In addition, the drum 60 is formed in a cylindrical shape with a front surface and a rear surface opened so that the front surface corresponds to the opening of the cabinet 50, and the rear surface is rotatably installed on the support panel 62 having the through hole 62a formed therein. .

Here, the support panel 62 is installed on the rear inner wall of the cabinet 50 so that the drum 60 can be rotatably supported, and the intake pipe 70 is installed in the through hole 62a.

In addition, the front panel 64 is provided between the front end of the drum 60 and the opening of the cabinet 50, and a discharge port 64a is formed at the lower end of the front panel 64.

An extension pipe 84 facing the exhaust fan 82 side is provided at this discharge port 64a, and a housing 86 is installed between the extension pipe 84 and the exhaust pipe 80 so that the exhaust fan 82 is rotatably embedded. .

In addition, the intake pipe 70 is formed of a passage extending from the heater 100 to the upper portion of the rear surface of the cabinet 50 corresponding to the through hole portion 62a, so that air introduced from the inside of the cabinet 50 is heated by the heater 100. As it passes through the air is converted to a predetermined temperature or more is moved along the intake pipe 70 to the upper side of the cabinet 50, it is introduced into the drum 60 through the through-hole portion 62a.

At this time, as the drum 60 connected to the drive motor 90 and the belt (not shown) is rotated so that the contact area of the hot air and the laundry increases, a drying operation or a sterilization operation of the laundry is performed.

Figure 4 is an exploded perspective view showing a gas heater according to an embodiment of the present invention, Figure 5 is a partially enlarged view showing a mixing tube of the gas heater according to an embodiment of the present invention, Figure 6 is a view of the present invention A suction amount adjusting means of the gas heater according to an embodiment is a perspective view shown.

3 to 6, the heater 100 is installed at one side of the cabinet 50 to supply a gas into the cabinet 50, and a nozzle installed at an inner end of the gas pipe 130 ( 140, a valve 150 installed at one side of the gas pipe 130, a mixing pipe 120 connected to the nozzle 140 to mix gas and air, and a flame installed at the outside of the mixing pipe 120 The spark plug 170 causing the guide pipe, the guide pipe 110 is installed outside the mixing pipe 120 to guide the heated air to a predetermined space, the gas pipe 130, the mixing pipe 120, the guide pipe 110 Is mounted and installed between the bracket 160 installed on one side of the inner wall of the cabinet 50 and the mixing pipe 120 and the guide pipe 110 to form a flame generated by the spark plug 170 larger than a predetermined size. The flame holder 180 and the guide pipe 110 to suppress the to be installed in the air moved along the guide pipe 110 It comprises a mixing means (300) such that generation.

Thus, when the valve 150 is opened and the gas is supplied to the mixing pipe 120 along the gas pipe 130, the valve 150 is mixed with the air in the cabinet 50 to be injected outside the mixing pipe 120, and at this time, the spark plug 170 Flames are generated by the flames generated from).

The flame generated in this way is controlled by the flame holder 180 so that the size and position of the flame are controlled so that the flame is positioned inside the guide tube 110, so that the air introduced along the guide tube 110 passes through the flame and is heated to a high temperature. The temperature is changed by the hot air of the sprayed to the laundry, so the drying operation is made.

At this time, the air passing through the flame holder 180 forms a vortex-shaped vortex by the mixing means 300, so that the air stays in the guide tube 110 for a predetermined time, thus incomplete combustion while staying inside the guide tube 110. Harmful gases such as carbon monoxide (CO) generated by the reburn are burned.

By the recombustion, the harmful gas is burned close to the complete combustion, so that the harmful gas is prevented from being introduced into the drum 60, and the combustion efficiency of the gas is improved.

Here, the mixing pipe 120 is a mixing part 124 is formed on one side to allow the air in the cabinet 50 to flow in, the mixing part 124 is a nozzle 140 is coupled to the gas mixing pipe 124 ), And a predetermined amount of air is introduced into the cabinet 50.

In addition, the mixing pipe 124 has a pair of coupling ribs 122 formed at both ends, the coupling rib 122 is formed with a hole portion (122a) bolts to the fastening hole portion 162a of the bracket 160 to be described later Are combined by.

Here, the mixing part 124 is formed by the end of the mixing tube 120 is extended, the insertion hole portion 124a is formed in a hollow cylindrical shape forcing the nozzle 140 at the end corresponding to the nozzle 140 Is formed, the inlet hole portion 124b is formed on one side of the circumferential surface air is sucked in the cabinet (50).

As a result, when gas is injected into the mixing unit 124 by the nozzle 140, air inside the cabinet 50 is supplied into the mixing unit 124 through the inlet hole 124b, thereby mixing gas and air. The gas flows along the mixing pipe 120 and is injected into the guide pipe 110.

The suction amount adjusting means 190 is installed in the mixing part 124 to adjust the amount of air introduced therein, and the suction amount adjusting means 190 is installed inside the inlet hole part 124b to provide the inlet hole part 124b. By varying the size, the amount of air introduced can be controlled.

The suction amount adjusting unit 190 is rotatably installed inside the mixing unit 124 to adjust the size of the inlet hole 124b and the control tube 192 and the gear unit formed at one side of the control tube 192 ( 192c, the long hole portion 196 formed in the mixing portion 124 corresponding to the gear portion 192c, and is inserted into the mixing portion 124 through the long hole portion 196, the gear bit 192c And a driven gear 198 and a driven gear 198 and a geared motor 194.

Here, the control pipe 192 is formed in a cylindrical shape with one side open and hollow inside, the intake hole 192a is formed on the front side corresponding to the insertion hole 124a, the circumference corresponding to the inlet hole 124b The adjustment hole 192b is formed on the surface.

As a result, when the motor 194 is driven, the control tube 192 is rotated by the rotation of the driven gear 198 geared to the rotation shaft of the motor 194, and the adjustment hole 192b of the control tube 192 The size of the inflow hole 124b may vary according to the distance from the inflow hole 124b.

7 is a perspective view showing a bracket of a gas heater according to an embodiment of the present invention.

3, 4 and 7, the gas heater of the present invention is equipped with a gas pipe 130, the mixing pipe 120, the guide pipe 110, the bracket 160 is installed on one side of the inner wall of the cabinet 50 This is further included. The bracket 160 is installed between the bracket 160 and the cabinet 50 so that the mounting means 200 may be disposed at the correct position, and the fastening is installed between the bracket 160 and the cabinet 50. Means 230 are formed.

Thus, the bracket 160 is fixed to the bottom of the cabinet 50 by the seating means 200 when the heater 100 is installed, and then the bracket 160 is fixed by the fastening means 230. Can be.

Here, the bracket 160 is formed in a shape of a long frame in the front and rear direction in the shape of the front surface is open in a square, the seating portion 162 and the guide tube formed on the upper surface corresponding to the mixing tube 120 It comprises a support portion 168 formed with a stepped portion at the rear end portion corresponding to the 110, and a fastening hole portion 162a formed at one side of the seating portion 162 to which the mixing pipe 120 is coupled.

In addition, the seating means 200 is formed on the guide protrusions 210 formed at both end portions of the bracket 160 and the inner wall of the cabinet 50 corresponding to the guide protrusions 210 so that the guide protrusions 210 are slid and fitted. The insertion part 220 and the stopper 212 formed by bending the outer end of the guide protrusion 210 are formed.

In addition, the stopper 212 is formed with a coupling groove 214 for cutting the upper portion to allow the gas pipe 130 is seated.

Thus, when installing the heater 100, after installing the mixing pipe 120 and the gas pipe 130 in the bracket 160, the guide protrusion 210 is pushed into the insertion portion 220, the bolt through the through-hole portion 232 When fastening the bolt passing through the through hole 232 is fastened to the coupling hole 234, the mounting of the heater 100 is made.

Flame holder 180 is installed between the mixing tube 120 and the guide tube 110, a plurality of supports 184 extending from one side of the flame holder 180 is coupled to the end of the mixing tube 120, and ignition A cover 188 is formed on one side of the support 184 corresponding to the plug 170 and partitions between the mixing pipe 120 and the spark plug 170.

In addition, the flame holder 180 is a support 184 extends from the main body 182 formed in a ring shape, a plurality of wings 186 protrude radially between the support 184 and the support 184.

Here, the blade 186 is bent at a predetermined angle toward the mixing tube 120 side, the cover portion 188 is a portion of the support 184 is made by extending a predetermined amount in the circumferential direction.

Thus, the mixed gas injected to the outside of the mixing tube 120 is ignited by the spark generated from the spark plug 170, the spark plug 170 as soon as being injected into the outside of the mixing tube 120 by the cover 188. Since the contact is suppressed, the generation of the flame occurs at a predetermined distance away from the mixing tube 120, and the flame generated because the mixed gas injected by the main body 182 and the blade 186 of the flame holder 180 is dispersed. The shape of the guide tube 110 is not formed long, is formed to be collected near the flame holder.

By this action, the flame is collected in the central portion inside the guide tube 110, so that the mixing pipe 120 or the intake pipe 70 can be prevented from being deformed or damaged by the flame.

In addition, the mixing means 300 is a support 310 extending from the mixing tube 120 into the guide tube 110, a fan 320 installed at one end of the support 310, and the other side of the support 310 The coupling ring 330 is installed at the end and fitted to the circumferential surface of the mixing pipe 120.

As a result, the air moving along the guide tube 110 through the flame holder 180 passes through the support 310 and rotates the fan 320 when it comes into contact with the fan 320, thereby rotating the fan 320. At the same time, the vortex-shaped vortex is formed so as to stay inside the guide tube 110 for a predetermined time.

By this operation, the time the air stays in the guide tube 110 is increased, so that the contact time between the flame formed in the flame holder 180 and the air is increased, and the harmful gas generated by the incomplete combustion is reburned. Is generated.

When the noxious gas is reburned, the harmful gas is suppressed from being contained in the hot air supplied into the drum 60, so that a clean drying operation can be performed.

In addition, the combustion efficiency of the gas energy is improved to reduce the amount of gas required for the drying operation appears.

Looking at the operation of the gas heater and the dryer having the same according to an embodiment of the present invention configured as described above are as follows.

8 is a plan view illustrating a suction passage of a dryer having a gas heater according to an embodiment of the present invention, and FIG. 9 is a side view illustrating a circulation passage of the dryer having a gas heater according to an embodiment of the present invention. 10 is a cross-sectional view illustrating an exhaust passage of a dryer having a gas heater according to an embodiment of the present invention.

3, 4, and 8 to 10, first, when a user operates a driving button (not shown), power is supplied to the driving motor 90 and the heater 100 to exhaust the exhaust fan 82 and the drum. As the 60 is rotated, the air introduced into the drum 60 along the suction port by the driving of the exhaust fan 82 passes through the suction port and is formed long in the vertical direction on the rear surface of the cabinet 50 ( 70 is moved upwardly of the cabinet 50, where it is heated by the heater 100 with hot dry air of a predetermined temperature or more.

Thereafter, the air introduced into the drum 60 through the through-hole part 62a flows in a tornado shape and contacts the laundry to perform a drying operation.

A discharge port 64a is formed in the front panel 64 provided between the opening of the drum 60 and the inner wall of the cabinet 50, and the air which has undergone the drying operation is discharged to the outside of the drum 60 along the discharge port 64a. And flows into the housing 86 of the exhaust fan 82 through the connecting pipe 84 communicating with the discharge port 64a, and is moved along the exhaust pipe 80 in the housing 86 to the cabinet through the discharge port 54. 50 is discharged to the outside.

Here, looking at the operation of the heater 100, with the start of the drying operation, the valve 150 is opened, the gas is injected into the mixing tube 120 through the nozzle 140, the inlet hole of the mixing unit 124 ( The air inside the cabinet 50 is primarily mixed with gas through 124b.

The mixed gas is injected to the outside of the mixing tube 120, the flame is generated by the spark plug 170 installed on the outside of the mixing tube 120, that is, the inner side of the guide tube 110 is supplied to the intake pipe 70 It is possible to supply thermal energy to the air.

In addition, the flame has a shape that is collected in the central portion of the guide tube 110 by the flame holder 180 to prevent the mixing pipe 120 and the intake pipe 70 is deformed or damaged, which is a flame holder Since the cover portion 188 of 180 divides the mixed gas and the spark plug 170 at the discharge port side of the mixing tube 120, the flame is not formed near the mixing tube 120, and the flame holder 180 Since the mixed gas is dispersed by the main body 182 and the wing 186 of the flame, the shape of the flame is prevented from being formed to the inside of the guide tube 110 to prevent the flame from occurring in the intake pipe 70. do.

At this time, the air passing through the flame holder 180 is in contact with the fan 320 is sliding along the inclined surface of the fan 320 to form a whirlwind-shaped vortex causing the rotation of the fan 320.

Since the air passing through the flame holder 180 stays in the guide tube 110 for a predetermined time by this operation, the harmful gas generated by the incomplete combustion of the gas is reburned, so that the generation of the harmful gas due to the incomplete combustion of the gas is prevented. It is suppressed so that it is heated above a predetermined temperature and clean air is supplied into the drum 60.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible from those skilled in the art. Will understand.

In addition, although a dryer has been described as an example, this is merely exemplary, and the gas heater of the present invention may be used in a gas heater of a product other than the gas heater used in the dryer.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

The gas heater and the dryer having the same according to the present invention configured as described above have an advantage of reducing the time and cost required for the drying operation by supplying thermal energy into the drum using relatively inexpensive gas.

In addition, according to the present invention, the mixing means is installed inside the guide tube, so that the air passing through the flame holder stays in the guide tube for a predetermined time, so that noxious gas generated by the combustion of the gas is reburned, thereby performing clean drying operation. And it is possible to improve the efficiency of the heater to more effectively reduce the time and cost required for the drying operation.

Claims (3)

cabinet; A gas pipe installed at one side of the cabinet to supply gas into the cabinet; A nozzle installed inside the gas pipe; A valve installed at one side of the gas pipe; A mixing tube installed at one side of the nozzle to mix gas and air; An ignition plug installed outside the mixing pipe to generate a flame; A guide tube installed outside the mixing tube to guide heated air to a predetermined space; And Gas heater, characterized in that it comprises a mixing means installed in the guide tube so that the vortex is generated in the air moved along the guide tube. The method of claim 1, The mixing means includes a support extending from the mixing tube into the guide tube, a fan installed at one end of the support, and a coupling ring installed at the other end of the support and fitted to the circumferential surface of the mixing tube. Gas heater, characterized in that. cabinet; A gas pipe installed at one side of the cabinet to supply gas into the cabinet; A nozzle installed inside the gas pipe; A valve installed at one side of the gas pipe; A mixing tube installed at one side of the nozzle to mix gas and air; An ignition plug installed outside the mixing pipe to generate a flame; A guide tube installed outside the mixing tube to guide heated air to a predetermined space; And And a gas heater including a mixing means installed in the guide tube so that vortices are generated in the air moving along the guide tube.

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