KR100255943B1 - Air control system for a gas appliance - Google Patents

Abstract

PURPOSE: An air controller of a gas machinery is provided to minimize a change of air amount, to simply convert city gas with LPG(Liquefied Petroleum Gas) and to prevent a fire by removing an additional air control plate and preventing a movement of a control plate. CONSTITUTION: An air passage(50a) is formed in an inlet of a burner(50). An air amount controller is combined with the burner(50a) to control an air amount. The air amount controller comprises a control plate(52) having a through hole(52a) and an air inlet(52b) and an expanding plate(54) having plural supporting slots(54a). A nozzle(20) is penetrated through the through hole(52a) to disperse city gas or LPG. A movement preventing member is fixed in the nozzle(20) to prevent a movement of the control plate(52). The movement preventing member comprises springs(56) to be fixed in the nozzle(20) and inserted in the air inlet(52b). The nozzle(20) is screwed with an elbow(22) to be connected with a hose. A supporting portion(58) is fixed in the elbow(22) and inserted in the supporting slot(54a) to support the control plate(52). Thereby, a manufacturing cost is reduced and a fire is prevented previously.

Description

Air conditioner of gas equipment

The present invention relates to an air conditioner of a gas machine, and more particularly, to improve the structure of the control plate for adjusting the air volume to prevent the flow of the control plate due to external impacts, as well as to reduce the change in air volume to a minimum The present invention relates to an air conditioner of a gas machine that can easily switch between city gas and LPG.

In general, a gas appliance including a gas stove is mixed with city gas and / or LPG (liquefied petroleum gas) and air supplied from the outside at a predetermined ratio, and then ignited by an ignition means installed near the combustor while discharging the mixed gas to the combustor side. As a device for generating a thermal power, a conventional air conditioner for adjusting the air to match the capacity of the gas supplied to such a gas machine, as shown in Figures 1 and 2, the lower part of the combustor (not shown) Rotatably coupled to the air control plate 12 and the air control plate 12 coupled to the burner 10 and the inlet portion 10a of the burner 10 for inducing a mixed gas in which air is mixed and discharged to the combustor side. It consists of a throttle 14 to adjust the amount of air.

Burner 10 is made of a venturi tube having a "b" shape by die casting so that the flow rate of the mixed gas can be varied. In addition, the air control plate 12 has a through hole 12a formed at the center thereof, and a fan-shaped air passage hole 12b is provided at both sides of the air control plate 12, and the upper and lower surfaces have air for the type of gas provided. The scale 12c is indexed to adjust the ratio of.

The adjustment plate 14 extends to open and close the control unit 16 to correspond to each other in order to adjust the opening and closing range of the air passage hole (12b), the caulking (caulking) against the air control plate 12 in the center of the control plate 14 The through hole 14a is formed to be coupled, and one side of the opening and closing control unit 16 protrudes the adjusting protrusion 18 to rotate the adjusting plate 14.

In addition, one end of the nozzle 20 through which the city gas or LPG is injected is penetrated through the through holes 12a and 14a of the air control plate 12 and the control plate 14. The other end of the nozzle 20 is screwed into an elbow 22 to which a hose is connected.

In the conventional air conditioner configured as described above, the control plate 14 is rotatably coupled to the air control plate 12 by caulking and then protrudes to the opening and closing control unit 16 of the control plate 14 as shown in FIG. 3. The adjustment protrusion 18 is rotated clockwise or counterclockwise to adjust the opening and closing range of the air passage hole 12b to suit the type of gas used and its capacity.

Then, while rotating while pressing the spindle (not shown) of the thermal regulator, the city gas or LPG discharged along the hose is at one end through the through holes 12a and 14a of the air control plate 12 and the control plate 14. The mixed gas, which is injected into the inlet portion 10a of the burner 10 through one end of the nozzle 20 penetrated, and mixed with the air introduced into the air passage hole 12b, is discharged to the combustor side. At this time, the flow rate of the mixed gas is increased by the venturi tube of the burner (10).

Then, the mixed gas reached to the combustor is maintained in the ignited state by the ignition means for generating a spark at the same time the operation of the thermal regulator.

However, since the control plate for adjusting the air volume to fit the capacity of the city gas and / or LPG as described above by the caulking to the air control plate is combined with the separate air control plate formed air passage hole is a cumbersome coupling operation Of course, the throttle is not only easily flowed (rotated) by the external impact applied to the gas appliance, but the amount of air introduced into the air passage hole is changed, thereby increasing the proportion of air mixed with the gas, and thus, ignition is not easily performed. There is a problem that causes a fire hazard because instantaneous large thermal power is generated during the use of the device.

The present invention is to solve the above problems, an object of the present invention is to form an air passage hole at the inlet of the burner, by directly coupling the improved control plate to the burner rotatable structure, to remove the separate air control plate It is possible to reduce the cost accordingly, as well as to provide an air conditioner for gas appliances that can improve workability.

Another object of the present invention is to prevent the flow of the throttle plate due to external impact applied to the gas equipment to reduce the change in the air volume to a minimum, it is possible to simply switch between the city gas and LPG, as well as the risk of fire The present invention provides an air conditioner for preventing gas appliances.

1 is an exploded perspective view showing an air conditioner of a conventional gas appliance,

Figure 2 is a side cross-sectional view of the conventional air conditioner combined;

Figure 3 is a front view showing a state in which the air amount is adjusted by the air conditioner of Figure 2,

Figure 4 is an exploded perspective view showing an air conditioner of the gas appliance according to the present invention,

Figure 5 is a side cross-sectional view showing an air conditioner of the gas appliance according to the present invention,

6 is a front view showing a state in which the air amount is adjusted by the air conditioner of FIG.

Explanation of symbols on the main parts of the drawings

50: burner 50a: air passage hole

52: control panel 52a: through hole

52b: air inlet hole 54: extension

54a: support hole 56: spring

58 support

The present invention is to achieve the above object, a feature of the present invention is the air conditioner of the gas machine provided to control the amount of air mixed with the gas injected to one end of the nozzle is discharged to the combustor, the combustor A burner coupled to the burner so as to discharge the gas mixed with the combustor; Air amount adjusting means rotatably coupled to the burner to adjust an amount of air introduced into the air passage hole; A flow preventing member having one end fitted to the air amount adjusting means to prevent the air amount adjusting means from flowing due to an external impact applied to the gas device; The nozzle is achieved by being configured to include a support for adjusting the opening and closing range of the air passage hole according to the capacity of the gas is fixed to the elbow to be screwed.

Air amount adjusting means according to a preferred embodiment of the present invention is formed on the outer circumferential surface of the control plate and the control plate is provided on both sides of the through hole through which one end of the nozzle is penetrated and the air inlet hole for introducing air It is achieved by being provided with the extension piece in which the some support hole was formed so that one end of the support part may be fitted.

The flow preventing member according to a preferred embodiment of the present invention is achieved by having a pair of springs fixed at one end to the nozzle and the other one to be fitted into the air inlet hole of the control plate.

Hereinafter, a preferred embodiment of an air conditioner for a gas appliance according to the present invention will be described in detail with reference to the accompanying drawings.

4 and 5 are views showing the air conditioner according to the present invention, a butterfly-shaped air passage hole (50a) is formed in the inlet portion of the burner 50 of the venturi tube, the air chamber in the burner 50 Air amount adjusting means is coupled to adjust the amount of air introduced into the furnace hole (50a), the air amount adjusting means is a control plate formed with a through hole (52a) and the arc-shaped air inlet hole (52b) respectively on the center and both sides ( 52 and an extension piece 54 having a plurality of support holes 54a to adjust the opening and closing range of the air passage hole 50a according to the type of gas used on the outer circumferential surface of the control plate 52. do.

One end of the nozzle 20 for injecting city gas or LPG to the combustor passes through the through hole 52a of the control plate 52, and the nozzle 20 can prevent the flow of the control plate 52 by external impact. The flow preventing member is fixed so that the flow preventing member is provided with a pair of springs 56, one end of which is fixed to the nozzle 20 and the other end of which is fitted into the air inlet hole 52b of the control plate 52, respectively. do.

The nozzle 20 is screwed to the elbow 22 to which the hose is connected, and the support 58 is fitted to the support hole 54a to support the control plate 52 on the outer circumferential surface of the elbow 22.

The operation of the air conditioner according to the present invention configured as described above will be described in detail with reference to FIG.

The rotatable plate 52 is rotatably coupled so that the air passage hole 50a formed at the inlet of the burner 50 and the air inlet hole 52b are matched, and then the through hole 52a and the air inlet hole of the control plate 52. 52b, one end of the nozzle 20 and a pair of springs 56 fixed thereto are fitted. At this time, any one of the support hole 54a of the plurality of support holes 54a in which the extension piece 54 of the adjusting plate 52 is formed to support the support 58 fixed to the elbow 22 in which the nozzle 20 is screwed. ) To adjust the mixing ratio of gas and air.

That is, when the city gas or LPG is used in a gas machine, as shown in FIG. 6, the control plate 52 is rotated clockwise or counterclockwise to adjust the opening and closing range of the air passage hole 52b. One end of the support portion 54 is inserted into the support hole 54a which is horizontal with the support portion 58.

Then, while rotating while pressing the spindle of the thermal power regulator, one end of the nozzle 20, one end of which is passed through the through hole 52a of the control plate 52 along the hose connected to the city gas or LPG used to elbow 22 At the same time it is injected into the inlet of the burner 50 and is mixed with the air introduced into the air inlet 52b and the air passage hole 50a is quickly discharged to the combustor side along the venturi tube.

In this way, the mixed gas that reaches the combustor is ignited by ignition means that generates sparks when the thermal regulator is operated to heat and cook food.

As described above, according to the air conditioner of the gas appliance according to the present invention, an air passage hole is formed at the inlet of the burner, and a separate part for directly controlling the amount of air by directly coupling a control plate having an improved structure to the burner is deleted. Cost can be reduced and workability can be improved accordingly.

In addition, as the flow of the throttle plate is prevented due to an external impact applied to the gas machine, there is no change in the amount of air, and the city gas and the LPG can be easily switched, and the risk of fire can be prevented in advance.

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

Claims (2)

In the air conditioning apparatus of the gas machine provided to control the amount of air mixed with the gas injected from the nozzle and discharged to the combustor side, A burner coupled to the combustor and having an air passage hole formed at an inlet to discharge the gas mixed with the combustor; A control plate having a through hole through which one end of the nozzle penetrates, and an air inlet hole formed on both sides of the through hole to introduce air; Air amount adjusting means; A support part fixed to an elbow in which the nozzle is screwed and selectively fitted into a support hole of the extension piece according to a gas used; And a flow preventing member having one end fitted to the air amount adjusting means to prevent the flow of the air amount adjusting means due to an external impact applied to the gas device. 2. The air conditioner of claim 1, wherein the flow preventing member has a pair of springs fixed at one end to the nozzle and another end of the flow preventing member to be fitted into the air inlet hole of the control plate.

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