ES2531282B1 - Gas burner arrangement for a gas cooktop, gas cooktop and gas cooker - Google Patents

Abstract

Burner arrangement for a gas cooktop, gas cooktop and gas cooker. # The invention relates to a gas burner arrangement (1) for a gas cooktop (2), with a burner gas (3), a gas tube (4), designed to supply gas to the gas burner (3), with a gas regulating valve (5) mounted on the gas tube (4) to continuously regulate the gas flow that reaches the gas burner (3), or to interrupt it, and with an all-nothing gas valve (11) mounted on the gas pipe (4) downstream in relation to the gas regulating valve ( 5), which may switch at discretion between two different positions, where the all-nothing gas valve (11) has a fluid channel (17) always open and a fluid channel (18) with the possibility of closing, where in a first switching position of the all-no gas valve (11) the fluid channel (18) with the possibility of closing is always closed, lim It is the flow of gas to the gas burner (3) through the cross-section of the fluid channel (17), and where, in a second switching position of the all-nothing gas valve (11), the fluid channel (18) is open, and the gas flow to the gas burner (3) is limited by a cross section of the burner nozzle (20).

Description

Gas burner arrangement for a gas cooktop, gas cooktop and gas cooker

DESCRIPTION

The present invention relates to a gas burner arrangement for a gas cooktop, a gas cooktop and a gas cooker. 5

A gas burner arrangement of a fire gas kitchen countertop may include a gas burner, a first gas valve and a first gas tube. The first valve, preferably adjustable, can be connected to the gas burner with the aid of the first gas tube. To raise the maximum heating capacity of the gas burner, for example to achieve rapid boiling of water, the burner arrangement may have a second gas valve, connected in parallel with the first gas valve, in turn connected with the gas burner with the help of a second gas tube. Here both gas valves can be connected to a main gas pipe of the gas cooktop. For example, the first gas valve may be assigned to the gas burner in its normal operating mode, with which the gas flow to the burner is regulated. In normal operating mode the second gas valve is preferably closed. In a second operating mode of the known gas burner arrangement, in particular in the so-called mode of the known gas burner arrangement, especially in the operating mode known as 'booster', the second gas valve 20 is opened, and in addition to the gas supplied through the first gas tube, gas is also supplied through the second tube. This improves the maximum calorific efficiency of the gas burner in the `booster 'operating mode compared to the normal operating mode.

 25

In this context the objective of the present invention is to provide an improved gas burner arrangement.

According to said objective, a gas burner arrangement is proposed for a gas hob with a gas burner, a gas pipe, designed to supply gas to the gas burner, a gas regulating valve installed in the gas pipe. , designed to continuously regulate the flow of gas to the gas burner or to interrupt it, and an all-nothing gas valve installed in the gas pipe downwards in relation to the gas regulating valve. The all-no gas valve can be found

in two different switching states, to choose from, being able to select an always open fluid channel or one with the possibility of closing. In a first switching state of the all-nothing gas valve, the fluid channel is closed, and the maximum gas flow to the burner is limited by the cross section of the always open fluid channel, and in the case of a second switching position the all-nothing gas valve fluid channel 5 is open and the maximum gas flow to the burner is limited by the cross section of a gas burner nozzle.

Preferably the gas regulating valve will be connected to a main gas pipe of the gas cooktop. The cross section of the always open fluid channel 10 is preferably the cross sectional surface of the always open fluid channel. The cross section of the burner nozzle is preferably the cross sectional surface of the burner nozzle. In this case, the burner nozzle means the smallest cross section or the greatest narrowing in the flow path between the all-nothing gas valve and the gas burner outlet orifices. The burner nozzle may be, for example, a gas burner mixing nozzle. The all-nothing gas valve may have a valve housing in which both fluid channels are housed. The always open fluid channel, or first fluid channel, of the gas all-nothing valve is configured in particular as a bypass channel of the gas all-nothing valve. This means that gas can always flow through the first fluid channel of the gas all-nothing valve, regardless of the switching state of the gas all-nothing valve. Gas will not pass through the first fluid channel only if the all-no gas valve installed in front of it is closed. The first fluid channel has a pre-determined and invariable cross-section, through which, in the first switching state of the gas all-nothing valve, a defined volume of gas flows. The first fluid channel thus creates a first unchanged throttle point of the all-nothing gas valve. In the first switching state of the gas all-nothing valve, the maximum nominal heat efficiency of the gas burner is limited by the cross section of the first fluid channel. For this, the cross section of the first fluid channel is, in particular, smaller than the cross section 30 of the burner nozzle.

The fluid channel with the possibility of closing, or second fluid channel, can be open or closed, at choice. The all-nothing gas valve, in particular the second fluid channel, will preferably be configured as an open-closed valve. This means that the second fluid channel will be, of choice, completely open or completely closed. The second fluid channel thus forms a second, variable, throttle point of the

all-nothing gas valve. In the second switching state the maximum calorific efficiency of the gas burner is limited by the cross section of the burner nozzle. The cross sections of the second fluid channel and the first fluid channel will preferably be larger together than the cross section of the burner nozzle. 5

Two different operating levels of the gas burner can be achieved with the help of the gas regulating valve and the gas all-nothing valve. The first switching state of the gas all-nothing valve, in which the passage through the gas all-nothing valve is effected only through the first fluid channel, corresponds to the normal operation of the gas burner. gas. The second switching state of the gas all-nothing valve, in which the passage through the gas all-nothing valve is effected through the first fluid channel and simultaneously through the second fluid channel, corresponds with the so-called `booster´ operation of the gas burner.

 fifteen

Since the gas regulating valve and the all-nothing gas valve are installed in series, the parallel installation of both gas valves with two gas tubes can be dispensed with, and the expensive coordination and control of the gas valves to obtain sufficient control of the calorific efficiency of the gas burner. The aforementioned arrangement is therefore less complex and less exposed to failures than the gas burner arrangements already known, with two gas valves connected in parallel. The normal operating mode, with a throttled passage of the gas regulating valve and only the bypass channel, determines the calorific efficiency levels for the connected gas burner. In the booster mode, there is no gas flow throttling between the gas regulating valve and the gas burner. 25

According to one embodiment, the closing fluid channel can be closed with the aid of a movable closing element.

The closing element is preferably housed in the 30-gas all-nothing valve housing. The closing element may be the so-called valve male, or a sealing cone. In addition, the closure element may be a valve or a throttle ball. The closing element may be changed from an `open 'state, which corresponds to the second switching state of the gas all-nothing valve, to a' closed 'state, which corresponds to the first switching position of the all-nothing valve. Of gas. The closure element may be coupled to an activation element, which protrudes from the valve housing. With the help of the closing element the all-no gas valve can

Quickly switch between your two switching states. This allows a rapid alternation between the normal operating mode and the `booster 'operating mode.

According to another embodiment, the all-nothing gas valve is a magnetic valve, capable of alternating, with the help of a magnet, between the first switching state and the second switching state.

This facilitates a simple activation of the all-no gas valve, as this can be operated remotely with the help of the magnet.

 10

According to another embodiment, the magnet is an electromagnet.

The electromagnet can preferably be switched by means of a switch installed in the kitchen countertop. This ensures comfortable handling of the all-no gas valve. Alternatively, the magnet may be a permanent magnet. fifteen

According to another embodiment, the magnet is designed to move the closing element of the all-nothing gas valve.

For example, the magnet may be a linear or rotary electromagnet. The magnetic force of the magnet preferably acts on the closure element.

According to another embodiment, the gas burner device has a gas pipe joint, which fluidly joins the gas regulating valve with the all-nothing gas valve. 25

This connecting piece is preferably an aluminum tube. The connecting piece connects, in particular, a gas outlet of the gas regulating valve with a gas inlet of the all-nothing gas valve. The connecting piece can be in threaded connection with the gas regulating valve and with the all-nothing gas valve with the help of union nuts. This ensures a safe and fluid tight connection of gas valves.

According to another embodiment, the connecting piece has a connection element, configured in a complementary manner to a connection flange of the all-nothing gas valve. 35

The connection element is preferably in threaded connection with the connection piece. The connecting element may be in threaded connection with the connection flange of the all-nothing gas valve. The all-nothing gas valve will preferably be a standard component. The connection flange of the all-no gas valve is designed in particular to be connected to the main gas pipe of the gas hob. With the help of the connection element, the all-nothing gas valve can be connected without further modifications to the connection piece. In this way the gas burner arrangement can be manufactured at a low cost.

According to another embodiment, the gas burner arrangement has a sealing device 10 installed between the connection element and the connection flange.

This sealing device will preferably be flexible. A fluid tight connection between the connecting element and the connecting flange is guaranteed with the aid of the sealing device. fifteen

In addition, a gas cooktop with a gas burner arrangement of this type is proposed.

The gas cooktop can have a countertop tray, in which the gas burner is mounted. In addition, the gas cooktop can have a hob.

A kitchen home with a gas burner arrangement of this type and / or a gas kitchen countertop is also proposed. 25

The gas cooker will preferably be an appliance.

Other possible implementations of the invention also include combinations not explicitly named of the features or embodiments described above, or below, with reference to the embodiments. The specialist will also add individual aspects such as improvements or complements to the basic form in question of the invention.

Other configurations and advantageous aspects of the invention are subject to the secondary claims, and the embodiments described below. In

Hereinafter the invention is explained with the aid of preferred embodiments, referring to the attached figures.

Fig. 1 shows a schematic and perspective view of a gas burner arrangement for a gas cooktop; 5

Fig. 2 shows a schematic and perspective view of an all-nothing gas valve of the gas burner arrangement according to Fig. 1;

Fig. 3 shows a schematic view in partial section of the all-nothing gas valve 10 according to Fig. 2;

Fig. 4 shows a schematic and perspective view of a connection element of the gas burner arrangement according to Fig. 1; Y

 fifteen

Fig. 5 shows a schematic plan view of the connection element according to Fig. 4.

Unless otherwise indicated, in the figures all the same or functionally equal elements are provided with the same reference.

 twenty

Fig. 1 shows a schematic and perspective view of a gas burner arrangement 1 for a gas cooktop 2. The gas burner arrangement 1 has a gas burner 3 and a gas pipe 4, designed for directing gas towards the gas burner 3. The gas can be, for example, natural gas, propane gas, city gas or a similar gas. The gas burner arrangement 1 may also have a gas regulating valve 25, installed in the gas tube 4 and designed to continuously regulate a gas flow to the gas burner 3 or to interrupt said flow. The all-nothing gas valve 5 includes a valve housing 6 with a gas outlet 7 and a gas inlet 8. The gas inlet 8 has a connection flange 9, with which the all-nothing gas valve 5 It can be connected to a main gas pipe of the 30-gas kitchen countertop 2. In addition, the all-nothing gas valve 5 has an activation element 10. A rotating button can be mounted on this activation element.

In the downward direction of the gas flow in relation to the gas all-nothing valve 5, an all-nothing gas valve 11 is mounted on the gas tube 4. The all-nothing gas valve 11, shown in view Schematic and in perspective, it features a valve housing 12 with a gas inlet 13 and a gas outlet 14. The all-nothing gas valve 11 is

preferably a magnetic valve, capable of switching at choice with the aid of a magnet 15 to move from a first switching state to a second switching state. The magnet 15 is preferably an electromagnet. Alternatively, magnet 15 can be a permanent magnet. The magnet 15 can preferably be operated using a switch provided on the gas cooktop 2. Preferably the gas inlet 13 has a connection flange 16, designed to be connected to the main gas pipe.

Fig. 3 shows the housing 12 of the all-nothing gas valve 11 in a schematic view in partial section. The all-nothing gas valve 11 has a first fluid channel 17, or always open fluid channel, and a second fluid channel 18, or fluid channel with closure. 10 The first fluid channel 17 is an invariable first throttle point of the all-nothing gas valve 11. The first fluid channel 17 will be without gas passage only if the gas regulating valve 5 is completely closed. The second fluid channel 18 is a second variable throttle point of the all-nothing gas valve 11. Preferably the fluid channel 18 can be closed with the aid of a movable closure element 19 15. The closure element 19 may be housed in the housing 12 in a rotating position. The closing element 19 can be a throttle valve, a throttle ball, a valve cone, a valve male or some similar element. The fluid channel 18 with the possibility of closing is in particular an opening and closing valve. The magnet 15 is designed to move the closure element 19. 20

In the first switching state of the all-nothing gas valve 11 the closed fluid channel 18 is closed, and the maximum gas flow to the gas burner 3 is limited by a cross section, in particular a sectional surface cross section of the fluid channel 17, always open, of the all-nothing gas valve 11. This corresponds to the normal operating mode of the gas burner 3 or of the gas cooktop 2. The cross section of the fluid channel 17, always open, is preferably smaller than a cross-section, in particular a cross-sectional area, of a nozzle 20 of the gas burner 3. As a nozzle of the burner 20, the smallest cross section, or the major narrowing between the all-nothing gas valve 11 and 30 the gas burner outlet orifices 3. The burner nozzle 20 may be a gas burner mixing nozzle 3. The calorific performance of the burner gas r 3 can be controlled with the help of the gas regulating valve 5. In the first switching state the gas will only pass to the first fluid channel 17 through the gas all-nothing valve 11. 35

In the second switching state of the all-nothing gas valve 11, the fluid channel 18, with the possibility of closing, will be open, in particular in full. The maximum gas flow to the gas burner 3 will be limited by the cross section of the burner nozzle 20. Preferably the cross section of the burner nozzle 20 will be smaller than the set of cross-sectional surfaces of the fluid channels. 17, 5 18. The calorific efficiency of the gas burner 3 is adjustable in the second switching state with the aid of the all-no gas valve 5. In the second switching state the gas flows in the first fluid channel 17, and in the second fluid channel 18 it does it simultaneously by the gas all-nothing valve 11. This situation corresponds to the operation in the booster mode of the gas burner 3 or of the kitchen countertop 10 of gas 2.

The gas tube 4 has a first connection piece 21, which fluidly joins the gas valves 5 and 11 together, and a second connection piece 22, which fluidly joins the all-nothing gas valve 11 with the gas burner 3. The second connecting piece 22 may be configured as a section of bent tube. The second connecting piece 22 can be connected, respectively, by the union nuts 23, 24, with the gas outlet 14 of the all-nothing gas valve 11 and with the connection flange 25 of the gas burner 3.

The first connecting piece 21 is preferably a straight tube section. The first 20 connecting piece 21 may be an aluminum tube. With the aid of a union nut 26 the first connecting piece 21 can be connected to the gas outlet 7 of the all-no gas valve 5. In a final section 27 of the first connecting piece 21, opposite the outlet of gas 7, this connecting piece has a connection element 28, configured in a complementary manner to the connection flange 16 of the gas all-nothing valve 11. 25

Fig. 4 shows the connection element 28 in a schematic and perspective view. Fig. 5 shows the connection element 28 in a schematic plan view. The first connecting piece 21 is connected by the union nut 29 with the connecting element 28. The final section 27 will protrude through the connecting piece 28, penetrating the gas inlet 13 of the all-nothing valve of gas 11. A perforation 30 is provided for this in the connection element 28. The connection element 28 has a clamping section 31, in which the first connecting piece 21 and an arc-shaped sealing section 32 are held. , formed in a complementary manner with the connection flange 16 of the gas all-nothing valve 11. 35

A sealing device 33 can be provided between the sealing section 32 and the connection flange 16. A gap 34 is provided between the sealing section 32 and the clamping section 31, which passes through the connecting element 28. The connecting element 28 may have two lateral mounting sections 35, 36, which respectively include a through hole 37, 38. The connecting flange 16 may have two threads 39, 40 that correspond to the holes 37, 38. through-holes 37, 38 can be threaded to the flange 16 fasteners such as screws, to fix the connecting element 28 to the gas all-nothing valve 11.

A gas cooker 41 may have a gas burner arrangement 1 of this type 10 and / or a gas cooktop 2 of this type. The gas cooker 41 will preferably be an appliance.

Although the present invention has been described with exemplary embodiments, it can be modified in multiple ways. fifteen

Reference symbols

1 Gas burner arrangement

2 Gas kitchen countertop

3 Gas burner 5

4 Gas pipe

5 Gas regulating valve

6 Valve housing

7 Gas outlet

8 Gas inlet 10

9 Connection flange

10 Activation element

11 All-no gas valve

12 Valve housing

13 Gas inlet 15

14 Gas outlet

15 magnet

16 Connection flange

17 Fluid Channel

18 Fluid channel 20

19 Closing element

20 Burner nozzle

21 Connecting piece

22 Connecting piece

23 Union nut 25

24 Union nut

25 Connection flange

26 Union nut

27 Final Section

28 Connection element 30

29 Union nut

30 drilling

31 Clamping section

32 Shutter Section

33 Shutter 35

34 Hollow

35 Mounting section

36 Mounting section

37 Step drilling

38 Step drilling

39 Threaded drilling

40 Threaded drilling 5

41 Gas cooker

Claims (10)

1. Gas burner arrangement (1) for a gas cooktop (2), with a gas burner (3), a gas pipe (4), designed to supply gas to the gas burner (3), a gas regulating valve (5) mounted on the gas tube (4), designed to continuously regulate a gas flow to the gas burner (3), or to interrupt it, characterized in that it also comprises an all-valve no gas (11) mounted on the gas pipe (4) downwards in relation to the gas regulating valve (5), to alternate at discretion between two different switching states, where the all-no gas valve ( 11) has a fluid channel (17) always open and a fluid channel (18) that can be closed, where in a first state of switching the gas all-nothing valve (11), the fluid channel ( 18) with the possibility of closing it is closed, and a maximum gas flow to the gas burner (3) is limited by the cross section d the fluid channel (17) always open, and where, in a second switching position of the all-nothing gas valve (11), the fluid channel (18) is open, and the maximum gas flow to the burner of gas (3) is limited by a cross section of a burner nozzle (20) of the gas burner (3). 2. A gas burner arrangement according to claim 1, characterized in that the fluid channel (18) with the possibility of closing can be closed with the aid of a movable closing element (19). twenty 3. Gas burner arrangement according to claim 1 or 2, characterized in that the all-nothing gas valve (11) is a magnet valve, which can switch at discretion between the first switching state and the second switching state with help of a magnet (15). 25 4. Gas burner arrangement according to claim 3, characterized in that the magnet (15) is an electromagnet. 5. Gas burner arrangement according to claim 3 or 4, characterized in that the magnet (15) is designed to move the closing element (19) of the gas all-nothing valve (11). 6. A gas burner arrangement according to claims 1-5, otherwise with a connecting piece (21) of the gas tube (4), which fluidly connects the gas regulating valve (5) with the whole valve no gas (11) 7. Gas burner arrangement according to claim 6, characterized in that the connecting piece (21) has a connecting element (28), configured in a complementary manner with a connecting flange (16) of the gas all-nothing valve (eleven).  5 8. A gas burner arrangement according to claim 7, otherwise with a sealing device (33) disposed between the connecting element (28) and the connecting flange (16). 9. Gas cooktop (2), with a gas burner arrangement (1) according to one of claims 1-8 10. Gas cooker (41) with a gas burner arrangement (1) according to one of claims 1-8 and / or with a gas cooktop (2) according to claim 9.