WO2013129773A1

WO2013129773A1 - Dual venturi for hot water heater

Info

Publication number: WO2013129773A1
Application number: PCT/KR2013/000445
Authority: WO
Inventors: 이현식; 허정선; 이동용
Original assignee: 주식회사 경동나비엔
Priority date: 2012-02-28
Filing date: 2013-01-19
Publication date: 2013-09-06
Also published as: KR20130098816A

Abstract

The present invention relates to a dual Venturi for a hot water heater and, particularly, to a dual Venturi for a hot water heater which controls the amount of gas and air supplied to a burner provided in a hot water heater in two stages, and which has a motor and an opening/closing block connected to a wire such that the wire is moved forward or backward by means of the operation of the motor, causing the opening/closing block to simultaneously open or close secondary air and gas inlets, and enabling more efficient heating control. The dual Venturi of the present invention comprises: a housing, one side of which defines a discharging unit coupled to a turbofan, and inside which a predetermined space, in which gas and air can flow, is formed; a gas inlet, formed in one side surface of the housing, through which gas enters; an air supply unit for suctioning air from the outside, which is provided on the other side of the discharging unit and which consists of a first air supply unit and a second air supply unit that are separated by a first partition wall; a gas supply unit consisting of a first gas supply unit (for discharging gas mixed with air entering from the air supply unit and discharged to the discharging unit, and partitioned by a second partition wall so as to enter through the gas inlet when the gas has a low amount of heat), and a second gas supply unit defining a second discharge hole which is opened or closed by means of an opening/closing means (described below); and an opening/closing means for closing the second air supply unit and the second gas supply unit so as to block the flow of air and gas when low heat is required, and opening the second air supply unit and the second gas supply unit when high heat is required.

Description

Dual Venturi for Water Heater

The present invention relates to a dual venturi for a water heater, specifically controlling the amount of supplying gas and air to a burner provided in the water heater in two stages, by connecting a motor and an opening / closing block with a wire to drive the motor. As the wire is moved forward or backward by the opening and closing block at the same time opening or blocking the inlet of the secondary air and gas relates to a dual venturi for water heaters capable of more efficient heat control.

In general, the gas water heater system is not a heating device but is a heating device that provides convenience of life by heating the low-temperature direct water when washing or showering, and providing a convenience of living. There are two types of gas water heater systems and storage gas water heater systems. exist.

The instantaneous gas water heater system of the above method is configured to heat the hot water by instantaneously heating the desired amount by using the instantaneous heat exchanger, the storage gas water heater system is maintained at a constant temperature while storing the hot water in the storage tank It has a configuration that can be stored and supplied.

The two types of gas hot water system is provided with a heating means for heating the low-temperature direct water, the heating means is a mixture of the gas supplied through the gas regulator and the air supplied through the blower mixed by the mixing valve Gas is supplied to the burner.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Registered Patent 10-113502

(Patent Document 2) The patent document relates to a complex gas water heater system that makes the gas water heater stable and stable by reducing the temperature variation of cold water and hot water by making the instantaneous gas water heater and the storage gas water heater complex. will be.

(Patent Document 3) In the method of supplying air and gas to the burner 28 in the above-described patent document, as shown in FIG. 8, the gas supplied through the gas regulator 22 for controlling the amount of gas is a nozzle ( It is a structure to release heat to the upper through 26. In this case, the blower 24 supplies the air to the burner 28 so that the combustion rate of the gas is high.

(Patent Document 4) However, the gas water heater system has a problem in that it is difficult to set a desired temperature when the flow rate of the hot water is small because the gas water heater system has a limit on a calorie down ratio for hot water temperature control. To improve this, the fluctuation of calories must be large and controlled up to 1:10 or less.

The present invention has been invented to solve the above problems, the purpose of which is provided with a separate opening and closing means to control the amount of air and gas flowing into the combustion device such as a water heater in two stages, the opening and closing means is By connecting the motor and the opening / closing block with a wire, the opening / closing block opens or shuts down the inlet of the secondary air and gas at the same time as the wire is moved forward or backward by the driving of the motor, thereby controlling the amount of air and gas. The purpose is to provide a venturi.

The present invention for achieving the above technical problem is one side is formed with a discharge portion coupled to the turbo fan, the housing is formed a predetermined space so that the gas and air flow inside; A gas inlet formed on a side of the housing and into which gas is introduced; An air supply unit provided at the other side of the discharge unit to intake air from the outside but separated by a first partition wall, the air supply unit including a first air supply unit and a second air supply unit; A first gas supply unit which is mixed with air introduced from the air supply unit and is discharged to the discharge unit and is partitioned by a second partition wall so that a first discharge hole is discharged when the gas introduced through the gas inlet unit has a low heat amount, which will be described later; Gas supply unit consisting of a second gas supply unit formed with a second discharge hole is opened and closed by the opening and closing means and the low heat amount when necessary to close the second air supply and the second gas supply to block the flow of air and gas while high heat quantity If necessary, opening and closing means for opening the second air supply and the second gas supply.

In one embodiment, the opening and closing means, the opening and closing block for opening and closing the second gas discharge hole; A motor for moving the opening and closing block forward and backward by an electrical signal; It is coupled between the opening and closing block and the motor includes a wire for advancing or reversing the opening and closing block and a spring provided between the wire and the opening and closing block to elastically support each other.

In one embodiment, the opening and closing block further includes a block cap surrounding a portion of the opening and closing block.

In one embodiment, the wire further comprises a sus shaft on both sides thereof to allow accurate conveyance without tilting during forward and backward operations of the separate opening and closing blocks.

In one embodiment, the sus shaft further includes a bracket inserted into one end to support the sus shaft.

In one embodiment, the motor, the bracket is provided on the upper portion, and the upper portion of the bracket includes a protrusion formed to project a predetermined section.

In one embodiment, the first and second discharge hole, characterized in that formed on the discharge side.

In one embodiment, the gas inlet, the sealing member which is formed through the through-hole through the gas in the center portion in contact with the housing, the protrusion is formed on both sides of the through-hole.

According to the dual venturi for a water heater of the present invention, firstly, a low calorie or a high calorie can be selectively output as needed in the hot water heater, and the user can control the calorie of the low calorie or high calorie according to the calorie required, thereby reducing fuel costs and The production cost can be reduced, thereby increasing the economic efficiency.

Second, as the opening and closing means for blocking or opening the secondary gas and air connects the motor and the opening and closing block with a wire, the opening and closing block simultaneously opens or closes the inlet of the secondary air and gas as the wire is moved forward or backward by driving the motor. The effect is that the configuration is simplified in a way that is blocked.

Third, since the closing distance between the opening and closing block and the bracket is shortened, the stroke length of the opening and closing block is shortened, thereby driving force is relatively small, and the stroke length is shortened, thereby increasing the durability of the device.

1 is a perspective view showing a state of the venturi for a water heater of the present invention.

2 is a plan view of FIG. 1.

3A is a cross-sectional view of FIG. 1.

3B is a partially enlarged view for illustrating a coupling relationship between a spring for supporting the wire and the opening / closing block of FIG. 3A.

4 is a view showing a state of the sus shaft provided in the opening and closing means of FIG.

5 is a plan view showing an operating state of the opening and closing block constituting the opening and closing means of FIG.

6 is a perspective view showing a state of the bracket of the motor constituting the opening and closing means of FIG.

7 is a view showing a state of the sealing member interposed between the gas inlet and the housing of FIG.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention are omitted.

Hereinafter, the venturi for a water heater of the present invention will be described in detail by explaining a preferred embodiment of the present invention with reference to the accompanying drawings.

1 is a perspective view showing a state of the venturi for a water heater of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 is a sectional view of Figure 1, Figure 4 is a state of the sus shaft provided in the opening and closing means of Figure 1 5 is a plan view showing the operating state of the opening and closing block constituting the opening and closing means of Figure 1, Figure 6 is a perspective view showing the appearance of the bracket of the motor constituting the opening and closing means of Figure 1, Figure 7 1 is a view showing a state of the sealing member interposed between the gas inlet and the housing of (1).

1 to 7, a mixed gas in which air and gas are mixed with a burner is provided with a housing 500 having a discharge part 300 formed at a lower portion thereof so as to be introduced into a turbo fan. The housing 500 is provided with a gas inlet 510 through which gas is introduced into a side thereof, and the gas inlet 510 has a through hole 521 through which gas passes through a central portion thereof in contact with the housing 500. The sealing member 520 is formed is interposed, the projections 522 are formed on both sides of the through-hole 521.

The other side of the discharge unit 300 is formed with an air inlet 100 to suck the air to the outside, the air inlet 100 is the first air supply unit 110 is partitioned by the first partition wall (130) And a second air supply unit 120.

On the other hand, the gas flowing into the gas inlet 510 is mixed with the air introduced from the air supply unit 100 is introduced into the turbo fan, and partitioned by the second partition wall 230, the first gas supply unit 210 And a gas supply unit 200 including the second gas supply unit 220. The first and second

gas supply parts

210 and 220 are formed with first and

second discharge holes

201 and 202, respectively, and the first and second discharge holes 202 face the discharge part 300. It is preferable to form. This is to allow the gas to be smoothly mixed by the wind power of the air introduced through the air supply unit 100 to be discharged to the discharge unit 300.

On the other hand, the middle of the housing 500 is provided with an opening and closing means 400 for opening and closing the second air supply unit 120 and the second gas supply unit 220 at the same time.

Looking at the opening and closing means 400 in detail, the opening and closing block 401 for opening and closing the second gas discharge hole 202 and the motor 402 for forward and backward movement by the electrical signal. And a wire 403 coupled between the open / close block 401 and the motor 402 to move the open / close block 401 forward or backward. In addition, a spring 407 is provided between the wire 403 and the opening and closing block 401 to elastically support each other.

Here, the opening and closing block 401, a block cap 404 surrounding the opening and closing block 401 is configured at the lower portion to prevent the wire 403 and the components combined with the wire 403 are separated from the outside. It is.

In addition, the wire 403 is provided in a form in which a separate sus shaft 405 is symmetric with each other on both sides, the sus shaft 405 serves to guide the forward, backward movement of the wire 403. Will be The sus shaft 405 is coupled to one end of the bracket 406 into which the sus shaft 405 is inserted, and the bracket 406 is configured to easily detachable from the sus shaft 405.

On the other hand, the motor 402, the bracket 410 is provided on the upper portion, the upper portion of the bracket 410 is formed with a protrusion 411 protruding a predetermined section. The protrusion 411 is to induce a smooth drive of the motor 402 by suppressing the vibration generated when the water heater is running.

Hereinafter, the operation state of the venturi for a water heater of the present invention configured as described above will be described.

First, the first operation of the water heater is the first air supply unit 110 and the first in the state that the opening and closing block 401 of the opening and closing means 400 blocks the second air supply unit 120 and the second gas supply unit 220 1 The air and the gas introduced through the gas supply unit 210 are mixed and introduced into the turbo fan. As described above, the mixed gas introduced through the first air supply unit 110 and the first gas supply unit 210 is used when a low heat amount is required.

However, if a high calorific value is required, the second air supply unit 120 and the second gas supply unit 220 should be opened. At this time, the opening and closing means 400 operates to operate the second air supply unit 120 and the second gas supply unit 220. Air and gas are introduced through).

Looking at the operating state in more detail, when power is applied to the motor 402, the motor is driven to reverse the wire 403, at this time, the opening and closing block 401 is also reversed to the second air supply unit ( 120 and the second gas supply unit 220 is opened and air and gas are introduced into the turbofan through the space.

Here, the driving force is reduced by narrowing between the bracket 406 and the opening / closing block 401 and the second air supplying unit 120 and the second gas supplying unit are moved even if the opening / closing block 401 moves a relatively short distance with a small time. 220 can be opened.

After the low calorific value is required again, the second air supply unit 120 and the second gas supply unit 220 should be closed. At this time, the opening and closing means 400 is operated, and the opening and closing block by the elastic force of the spring 407 ( The 401 is advanced to block the inflow of air and gas into the second air supply unit 120 and the second gas supply unit 220. In this case, when the opening and closing block 401 moves forward and backward, the sus shaft 405 may be accurately conveyed without tilting the opening and closing block 401.

The embodiment of the venturi for water heater of the present invention described above is merely exemplary, and it is well understood that various modifications and equivalent other embodiments are possible to those skilled in the art to which the present invention pertains. Could be. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

[Description of the code]

100: air supply unit 110: first air supply unit

120: second air supply unit 130: first partition

200: gas supply unit 201: first gas discharge hole

202: second gas discharge hole 210: first gas supply unit

220: second gas supply unit 230: second partition wall

300: discharge part 400: opening and closing means

401: opening and closing block 402: motor

403 wire 404 block cap

405: shaft 406: bracket

410: bracket 411: protrusion

500 housing 510 gas inlet

520: sealing member 521: through hole

522: projection 600: turbo fan

Claims

A discharge part 300 having one side coupled to the turbo fan is formed, and a housing 500 in which a predetermined space is formed to allow gas and air to flow therein;

A gas inlet 510 formed at a side of the housing 500 and into which gas is introduced;

The air supply unit 100 provided on the other side of the discharge unit 300 to intake air from the outside but is partitioned by the first partition wall 130 and constituted by the first air supply unit 110 and the second air supply unit 120. ;

It is mixed with the air introduced from the air supply unit 100 is discharged to the discharge unit 300 but is partitioned by the second partition 230 is discharged when the gas introduced through the gas inlet 510 is a low heat amount The first gas supply unit 210 is formed with a first discharge hole 201, and the second gas supply unit 220 is formed with a second discharge hole 202 is opened and closed by the opening and closing means 400 to be described later Gas supply unit 200 and

When the low heat amount is required, the second air supply unit 120 and the second gas supply unit 220 are closed to block the flow of air and gas, and when the high heat amount is required, the second air supply unit 120 and the second gas supply unit ( Dual venturi for a water heater, characterized in that it comprises a switching means 400 for opening the 220.
The method of claim 1,

The opening and closing means 400,

An opening / closing block 401 for opening and closing the second gas discharge hole 202;

A motor 402 for moving the opening and closing block 401 back and forth by an electrical signal;

A wire 403 coupled between the opening and closing block 401 and the motor 402 to move the opening and closing block 401 forward or backward;

Venturi for water heater, characterized in that it comprises a spring 407 provided between the wire 403 and the opening and closing block 401 to elastically support each other.
The method of claim 2,

The opening and closing block 401,

Venturi for water heater, characterized in that it further comprises a block cap 404 surrounding the opening and closing block 401 in the lower portion.
The method of claim 2,

The wire 403 is,

Venturi for water heater, characterized in that it further comprises a sus shaft (405) on both sides of the separate opening and closing block (401) for accurate transfer without forward and backward operation.
The method of claim 4, wherein

The sus shaft 405 is,

Venturi for water heater, characterized in that it further comprises a bracket 406 inserted into one end to support the sus shaft (405).
The method according to claim 1 or 2,

The motor 402 is,

Bracket 410 is provided at the upper portion, the venturi for water heater, characterized in that it comprises a protrusion 411 protruding a predetermined section on the upper portion of the bracket (410).
The method according to claim 1 or 2,

The first and second discharge holes (201, 202),

Venturi for water heater, characterized in that formed in the discharge portion 300 side.
The method of claim 1,

The gas inlet 510,

The sealing member 520 is formed in the portion in contact with the housing 500, the through-hole 521 is formed in the center of the gas through, the projection 522 is further formed on both sides of the through-hole 521 Venturi for water heater, characterized in that.