CN108644412A - A kind of flow divider, and the multi-combustor gas utensil comprising it combined control system - Google Patents

Abstract

The invention discloses a kind of flow dividers, and the combined control system of the multi-combustor gas utensil comprising it, it include the flow divider with multiple gas outlets, the valve body of flow divider is axially provided with the push rod that can control gas port break-make, the multi-combustor gas utensil combined control system for further comprising the flow divider simultaneously further comprises stem valve, push jack component, main fire device and igniting, extinguishing control system, after the present invention is used for gas utensil, the break-make of a portion burner feeding pneumatic is cut off by flow divider, the different working condition of multiple burners on control gas utensil may be implemented, therefore, the use of the new type flow divider, and the combined control system comprising its multi-combustor gas utensil is simple in structure, it is easy for installation, it is suitable for the control of most gas utensils with multiple burners.

Description

A diverter valve and a combined control system for a multi-burner gas appliance comprising it

technical field

The invention belongs to the technical field of gas appliances, and in particular the invention relates to a diverter valve and a combined control system of a gas appliance with multiple burners including it.

Background technique

Because of its convenience and quickness, gas appliances are loved by more and more consumers, and almost all urban families are using gas appliances. And many operations such as ignition, power adjustment and flameout closing of existing gas appliances are all realized by promoting the push rod valve to control the size and cut-off of the gas flow entering the burner. Such as a control system mentioned in "CN201320715287.7 A push piece assembly and a gas appliance push rod valve adjustment mechanism including it".

However, if there are multiple burners on the current gas appliance, they are generally controlled independently. There are two sets of handles or knobs, and the burners are not affiliated with each other and do not interfere with each other, which also increases the complexity of the control components. .

Contents of the invention

The technical problem to be solved by the present invention is to provide a diverter valve and a combined control system for multi-burner gas appliances including the diverter valve. After the present invention is used in a gas appliance, functions such as ignition, fire adjustment, single burner operation, multiple burner simultaneous operation, and safe closing of the appliance can be realized by operating one part, such as pushing a push piece. Therefore, the diverter valve of the present invention and the combined control system of the multi-burner gas appliance including it have a simple structure and are easy to install. Suitable for control on most multi-burner gas appliances.

The technical solution adopted by the present invention to solve the above technical problems is: a diverter valve, including a diverter valve body, a push rod arranged along the axis of the diverter valve body, a push rod and a gasket limit rod, the distance between the push rod and the push rod A buffer spring is arranged between, the outer periphery of the ejector rod is provided with a return spring, the outer periphery of the sealing pad limit rod is provided with a sealing spring, and the head of the sealing pad limiting rod is provided with a sealing gasket, and the stiffness of the buffer spring is very large. Based on the return spring, the diverter valve body is provided with a front-stage chamber, a rear-stage chamber and a functional chamber, the front-stage chamber is provided with an air inlet and a front-stage air outlet, and the rear-stage chamber is provided with a rear-stage air outlet. The sealing gasket limiting rod, sealing gasket and sealing spring are arranged in the front chamber, the ejector rod is arranged in the rear chamber and the functional chamber, and the return spring is arranged in the functional chamber.

In the above, when the return spring is in the reset state, the ejector rod is not in contact with the gasket limit rod, and the gasket, under the action of the sealing spring, connects the front chamber and the gasket. The rear-stage cavity is isolated, and the air inlet is only communicated with the front-stage air outlet. At this time, the push rod is pushed, because the stiffness of the buffer spring is much greater than that of the return spring , so as to push the ejector rod to compress the return spring, and then push the gasket limit rod to push away the gasket, so that the front-stage chamber communicates with the rear-stage chamber, That is, the air inlet is in communication with the front-stage air outlet and the rear-stage air outlet.

Further, a rubber sealing ring is provided between the rear-stage chamber and the functional chamber.

Further, the pre-stage chamber is provided with one or more pre-stage air outlets.

Further, there are one or more rear-stage air outlets provided in the front-stage chamber.

Further, a stabilizing spring is provided in the functional cavity inside the diverter valve body to stabilize the force on the push rod so that the push rod will not be skewed during the pushing process.

According to the combined control system of the multi-burner gas appliance including the diverter valve described in any one of the above 1-5, the control system further includes a push rod valve and a push piece assembly, and the push piece assembly is provided with a push piece and an operating arm, the operating arm can push the push rod on the push rod valve and the push rod on the diverter valve to move along the axis of the valve body.

Further, when the push piece assembly pushes the push rod valve, the diverter valve is in a relaxed state; when the push piece assembly pushes the diverter valve, the push rod valve is in a relaxed state, and pushes the stroke arrangement After pushing the push rod valve.

Further, the control system also includes a master fire device and an ignition and flameout control system, the push rod valve is provided with an air inlet, a main gas outlet and an ignition gas outlet, and the tail of the push rod valve is provided with a solenoid valve, so The primary ignition device includes an ignition nozzle, an ignition needle and a thermocouple, the ignition nozzle is connected to the ignition gas outlet on the push rod valve, the thermocouple is connected to the solenoid valve on the push rod valve, and the The electromotive force generated on the thermocouple can keep the electromagnetic valve engaged. The ignition and flameout control system includes an ignition travel switch, a flameout travel switch and an igniter. The push piece spring reaches a certain position, and the push piece can touch the position of the ignition travel switch, and the flameout travel switch is set on the push piece upward to compress the push piece spring to a certain position. position, and the push piece can touch the position of the flame-out travel switch.

Further, the main air outlet of the push rod valve communicates with the air inlet of the diverter valve.

Further, the push rod valve has the functions of low-grade flow output and high-grade flow output.

Further, the push piece assembly has a positioning device when the push piece moves to each position or certain positions.

Compared with the prior art, the advantage of the present invention is that the gas supply path of a part of the burners of the multi-burner gas appliance is switched on and off through the diverter valve, so that the flame of the gas appliance is more colorful, without the need for two An independent operation control system makes the use of gas appliances more convenient, and the control system is simple in structure and easy to install, and is suitable for combined control on most gas appliances with multiple burners.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the diverter valve in the initial position in Embodiment 1.

Fig. 2 is a schematic cross-sectional view of the diverter valve in the open position in Embodiment 1.

Fig. 3 is a schematic cross-sectional view of the shunt in the overstroke (flame-off position) in Embodiment 1.

FIG. 4 is a schematic diagram of the rear perspective structure of the control system of Embodiment 2. FIG.

Fig. 5 is a schematic diagram of the control system of Embodiment 2 in the ignition position.

Fig. 6 is a schematic diagram of the control system of embodiment 2 when the push rod valve is in the low gear position (the diverter valve is not opened at this time).

Fig. 7 is a schematic diagram of the control system of embodiment 2 when the push rod valve is in the high-grade position (the diverter valve is not opened at this time).

Fig. 8 is a schematic diagram of the control system of Embodiment 2 when all the burners of the gas appliance are in operation (at this time the diverter valve has been opened).

Fig. 9 is a schematic diagram of embodiment 2 when the control system is in a flame-off state (at this time, the diverter valve is overstroke).

The corresponding names of the components in the figure are: 1- diverter valve; 11- diverter valve body; 12- push rod; 13- ejector rod; Sealing spring; 18-sealing gasket; 111-pre-stage chamber; 112-rear-stage chamber; 113-functional chamber; 114-air inlet; 115-pre-stage air outlet; 19-stabilizing spring; 2-push rod valve; 21-push rod; 22-air inlet; 23-main air outlet; 24-ignition air outlet; 25-solenoid valve; 3-push piece assembly; 31-push piece; 32-operating arm; 33-push piece spring; 4-main fire device; 41-ignition nozzle; 42-ignition needle; 43-thermocouple; 5-ignition travel switch; 6-flame stop travel switch.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment 1 diverter valve

As shown in Figures 1 to 3, a diverter valve provided in this embodiment includes a diverter valve body 11, a push rod 12 arranged along the axis of the diverter valve body 11, a push rod 13 and a gasket limit rod 14. A buffer spring 15 is provided between the push rod 12 and the ejector rod 13, a return spring 16 is arranged on the outer periphery of the ejector rod 13, and a sealing spring 17 is arranged on the outer periphery of the sealing gasket limit rod 14, and the sealing gasket limit The head of the position bar 14 is provided with a gasket 18, and the stiffness of the buffer spring 15 is much greater than that of the return spring 16. The diverter valve body 11 is provided with a front-stage chamber 111, a rear-stage chamber 112 and a functional chamber 113. The front-stage chamber 111 is provided with an air inlet 114 and a front-stage air outlet 115, and the rear-stage chamber 112 is provided with a rear-stage air outlet 116, and the sealing gasket limit rod 14, the sealing gasket 18 and the sealing spring 17 are arranged in the front-stage chamber 111, The ejector rod 13 is disposed in the rear stage chamber 112 and the functional chamber 113 , the return spring 16 is disposed in the functional chamber 113 , and a stabilizing spring 19 is also disposed in the functional chamber 113 .

When the diverter valve 1 is in the initial position, the push rod 12 is not stressed, the push rod 12 and the ejector rod 13 move outward under the action of the return spring 15, the ejector rod 13 does not contact the gasket limit rod 14, and the gasket limit Under the action of the sealing spring 17, the rod 14 drives the gasket 18 to seal the passage between the front chamber 111 and the rear chamber 112 inside the diverter valve body 11, so that the air inlet 114 is not communicated with the rear air outlet 116. At this time, the air inlet 114 is only in communication with the front-stage air outlet 115 . Therefore, the burner on the gas appliance connected to the front-stage gas outlet 115 works, while the burner connected to the rear-stage gas outlet 116 does not work.

Now push the push rod 12, because the stiffness of the buffer spring 15 is far greater than the stiffness of the return spring 16, thereby pushing the push rod 13, compressing the return spring 16, and the length of the buffer spring 15 hardly changes. Continue to push the push rod 12, the ejector rod 13 touches the gasket limit rod 14, and then pushes away the gasket 18, so that the air inlet 114 is also connected with the rear-stage air outlet 116, that is, the gas appliance is connected with the front-stage air outlet 115 The burners that are communicated with 116 with the rear-stage air outlet all work together. When pushing the push rod 12, due to the influence of factors such as manufacturing tolerances and the direction of the force, the thrust is not necessarily along the axis, and the stabilizing spring 19 can balance the skewness of the push rod 12.

Example 2

As shown in Figures 4 to 8: according to the combined control system of multi-burner gas appliances described in Embodiment 1, the control system also includes a push rod valve 2 and a push piece assembly 3, and the push piece assembly 3 is provided with a push The piece 31 and the operating arm 32, the operating arm 32 can push the push rod 21 on the push rod valve 2 and the push rod 12 on the diverter valve 1 to move along the axis of the valve body. The control system also includes a master ignition device 4 and an ignition and flameout control system.

The push rod valve 2 is provided with an air inlet 22 , a main gas outlet 23 and an ignition gas outlet 24 , and the tail of the push rod valve 2 is provided with a solenoid valve 25 . The main ignition device 4 includes an ignition nozzle 41, an ignition needle 42 and a thermocouple 43; the ignition nozzle 41 is connected with the ignition gas outlet 24 on the push rod valve 2; the thermocouple 43 is connected with the solenoid valve 25 on the push rod valve 2 Connected, the electromotive force generated by the thermocouple 43 can keep the electromagnetic valve 25 in the suction state. The push piece assembly 3 is provided with a push piece spring 33 for resetting the push piece 31 . The ignition and flameout control system includes an ignition travel switch 5, a flameout travel switch 6 and an igniter; the ignition travel switch 5 is arranged on the push piece 31 and compresses the push piece spring 33 to a certain position downwards, and the push piece 31 can touch The position of the ignition travel switch 5; the flameout travel switch 6 is set at the position where the push piece 31 compresses the push piece spring 33 upwards to a certain position, and the push piece 31 can touch the position of the flameout travel switch 6.

The push rod valve 2 is a push rod valve with low-grade flow output and high-grade flow output according to the different positions of the push rod 21 of the push rod valve.

When starting to ignite, push the push piece 31 to move downward, and the operating arm 32 presses the push rod valve push rod 21, and then pushes away the electromagnetic valve 25, so that the air inlet 22 on the push rod valve 2 communicates with the ignition gas outlet 24. Simultaneously push piece 31 touches ignition travel switch 5, makes it close, and then connects ignition needle 42 on igniter and mother ignition device 4, thereby realizes ignition.

After the ignition is completed, stop pushing the push piece 31, and the push piece 31 resets under the effect of the push piece spring 33, and the push rod valve push rod 21 on the push rod valve 2 moves outwards and stops at a certain position, which is just Push rod valve 2 is in the position of low-grade flow output. At this time, the ignition nozzle 41 has been ignited, and an electromotive force will be generated on the thermocouple 43. The electromagnetic valve 25 in the push rod valve 2 uses the electromotive force generated by the thermocouple 43 to keep sucking in, so that the air inlet 22 on the push rod valve 2 and the Both the ignition gas outlet 24 and the main gas outlet 23 are kept in communication. The main air outlet 23 is in communication with the air inlet 114 on the diverter valve. Since the operating arm 32 has not acted on the push rod 12 on the diverter valve 1 at this time, the diverter valve 1 is not opened, and the inlet 114 is only connected to the outlet of the previous stage. The gas port 115 is connected, so that the burner on the gas appliance that is only connected to the front-stage gas outlet 115 works, and works in a low-grade output flow state.

At this time, push the push piece 31 upwards, the push piece 31 is out of contact with the push piece spring 33, and push to a certain position to stop, the push rod valve push rod 21 on the push rod valve 2 also continues to move outward, and reaches the push rod valve. 2 high output flow positions. At this time, the operating arm 32 is very close to the push rod 12 on the diverter valve 1, but the push rod 12 on the diverter valve 1 is not pressed, that is, the diverter valve 1 is not opened, and the air inlet 114 is only communicated with the front-stage air outlet 115 , so that the burner on the gas appliance that is only in communication with the front-stage gas outlet 115 works, and works at a high-grade output flow state.

At this time, continue to push the push piece 31 upwards, and push it to a certain position to stop. During the pushing process, the operating arm 32 presses the push rod 12 on the diverter valve 1, and then opens the diverter valve 1, so that the air outlet 116 of the rear stage is connected to the inlet. The gas port 114 communicates, so that the burners on the gas appliance respectively connected to the front-stage gas outlet 115 and the rear-stage gas outlet 116 work.

When it is necessary to turn off the gas appliance, continue to push the push piece 31 upwards. Since the sealing gasket limit rod 14 in the diverter valve 1 has moved to the bottom at this time, it cannot continue to move. At this time, the push piece 31 presses the push rod 12, so that The buffer spring 15 between the push rod 12 and the push rod 13 is compressed. Until the push piece 31 touches the flame-out travel switch 6 to disconnect it, because the flame-out travel switch 6 is connected in series with the solenoid valve 25 and the thermocouple 43, the disconnection of the flame-out travel switch 6 makes the solenoid valve 25 unable to get the heat from the thermocouple 43. The generated electromotive force further controls the solenoid valve 25 in the push rod valve 2 to be disconnected, and the push rod valve 2 is closed. Thus, the flameout and shutdown of the gas appliance are realized.

In the above steps, in order to distinguish each gear position, a positioning device is provided in the push piece assembly.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (11)

1. A flow diverter valve, characterized in that: comprise a flow diverter valve body (11), a push rod (12) arranged along the axis of the flow diverter valve body (11), a push rod (13) and a gasket stop rod (14), A buffer spring (15) is arranged between the push rod (12) and the ejector rod (13), a return spring (16) is arranged on the outer periphery of the ejector rod (13), and the gasket limit rod (14) The outer periphery of the seal spring (17) is provided with a seal gasket (18) at the head of the gasket limit rod (14), and the stiffness of the buffer spring (15) is much greater than that of the return spring (16). (11) is provided with front-stage chamber (111), rear-stage chamber (112) and functional chamber (113), and described front-stage chamber (111) is provided with air inlet (114) and front-stage air outlet (115) , the rear-stage chamber (112) is provided with a rear-stage air outlet (116), and the sealing gasket limit rod (14), sealing gasket (18) and sealing spring (17) are arranged in the front-stage chamber (111), so The push rod (13) is arranged in the rear stage chamber (112) and the function chamber (113), and the return spring (16) is arranged in the function chamber (113). 2. The diverter valve according to claim 1, characterized in that a rubber sealing ring (117) is arranged between the rear-stage chamber (112) and the functional chamber (113). 3. A diverter valve according to claim 1, characterized in that: the pre-stage chamber (111) is provided with one or more pre-stage air outlets (115). 4. A flow diverter valve according to claim 1, characterized in that: one or more rear-stage air outlets (116) are provided in the pre-stage chamber (111). 5. A diverter valve according to claim 1, characterized in that: a stabilizing spring (19) is provided in the functional chamber (113) inside the diverter valve body (11) to stabilize the push rod ( 12) Stress is applied so that the push rod (12) will not be skewed during the pushing process. 6. The combined control system of the multi-burner gas appliance including the above-mentioned diverter valve according to any one of the above-mentioned 1-5, characterized in that: the control system also includes a push rod valve (2) and a push piece assembly (3 ), the push piece assembly (3) is provided with a push piece (31) and an operating arm (32), and the operating arm (32) can push the push rod valve push rod ( 21) and the push rod (12) on the diverter valve (1) move along the axis of the valve body. 7. The combined control system of multi-burner gas appliances according to claim 6, characterized in that: when the push piece assembly (3) pushes the push rod valve (2), the diverter valve (1) is in a relaxed position state, when the push piece assembly (3) pushes the diverter valve (1), the push rod valve (2) is in a relaxed state, and the stroke of pushing the diverter valve (1) is arranged at the same time as pushing the push rod valve (2) after the class. 8. The combined control system of multi-burner gas appliances according to claim 6, characterized in that: the control system also includes a master fire device and an ignition and flameout control system, and the push rod valve (2) is provided with an air intake port (22), main gas outlet (23) and ignition gas outlet (24), the tail of the push rod valve (2) is provided with a solenoid valve (25), and the main fire device includes an ignition nozzle (41), An ignition needle (42) and a thermocouple (43), the ignition nozzle (41) is connected to the ignition gas outlet (24) on the push rod valve (2), and the thermocouple (43) is connected to the push rod valve (2). The solenoid valve (25) on the rod valve (2) is connected, and the electromotive force generated on the thermocouple (43) can keep the solenoid valve (25) engaged. The ignition and flameout control system includes an ignition travel switch (5) , flameout travel switch (6) and igniter, the ignition travel switch (5) is set on the push piece to compress the push piece spring to a certain position, and the push piece can touch the The position of the ignition travel switch (5), the flameout travel switch (6) is set on the push piece (31) to compress the push piece spring to a certain position (33), and the push piece Sheet (31) can touch the position of described flameout travel switch (6). 9. The combined control system of multi-burner gas appliances according to claim 8, characterized in that: the main air outlet (23) of the push rod valve (2) is connected to the air inlet (23) of the diverter valve (1) 114) are connected. 10. The combined control system of multi-burner gas appliances according to claim 9, characterized in that: the push rod valve (2) has low-grade flow output and high-grade flow output functions. 11. The combined control system of multi-burner gas appliances according to claim 6, characterized in that: the push piece assembly (3) when the push piece (31) moves to each position or certain positions , with a positioning device.