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CN-116292985-B - Multi-channel plug valve and combustion equipment

CN116292985BCN 116292985 BCN116292985 BCN 116292985BCN-116292985-B

Abstract

The invention discloses a multi-channel plug valve and combustion equipment, which both comprise a valve body, wherein an air inlet cavity is formed in the valve body, an air inlet channel communicated with the air inlet cavity, a pilot fire air channel, a first air channel and a second air channel are formed in the side part of the valve body, a valve core is rotatably arranged in the air inlet cavity and used for communicating or isolating at least one of the pilot fire air channel, the first air channel and the second air channel with the air inlet cavity, and the pilot fire air channel, the first air channel and the second air channel are sequentially distributed circumferentially around the rotation axis of the valve core and the aperture of the valve core is sequentially increased. The multi-channel plug valve and the combustion equipment can communicate at least one of the first gas transmission channel and the second gas transmission channel with the long open flame gas transmission channel together through the rotary valve core, so that the long open flame and flames with different power sizes are formed, different cooking modes are adapted, the use convenience is improved, and the cost is reduced.

Inventors

  • CHEN KEYUAN

Assignees

  • 广东汉普韦尔电子科技有限公司

Dates

Publication Date
20260512
Application Date
20230309

Claims (8)

  1. 1. A multi-channel plug valve, comprising: The valve comprises a valve body (100), wherein an air inlet cavity is formed in the valve body (100), and an air inlet channel (120), a long-open-fire air transmission channel (130), a first air transmission channel (140) and a second air transmission channel (150) which are communicated with the air inlet cavity are formed in the side part of the valve body (100); The valve core (200) is rotationally arranged in the valve body (100) and is positioned in the air inlet cavity, and is used for communicating or isolating at least one of the open flame air transmission channel (130), the first air transmission channel (140) and the second air transmission channel (150) with the air inlet cavity; The long open fire gas transmission channels (130), the first gas transmission channels (140) and the second gas transmission channels (150) are circumferentially distributed around the rotation axis of the valve core (200) in sequence, and the apertures of the long open fire gas transmission channels (130), the first gas transmission channels (140) and the second gas transmission channels (150) are increased in sequence; The valve core (200) has a closed position, a first working position, a second working position and a third working position which are arranged around the clockwise direction; when the valve core (200) is positioned at the first working position, the open flame gas transmission channel (130) is communicated with the gas inlet cavity, and the first gas transmission channel (140) and the second gas transmission channel (150) are separated from the gas inlet cavity; When the valve core (200) is positioned at the second working position, the open flame gas transmission channel (130) and the first gas transmission channel (140) are communicated with the gas inlet cavity, and the second gas transmission channel (150) is separated from the gas inlet cavity; When the valve core (200) is positioned at the third working position, the long-open-fire gas transmission channel (130), the first gas transmission channel (140) and the second gas transmission channel (150) are all communicated with the gas inlet cavity, or the long-open-fire gas transmission channel (130) and the second gas transmission channel (150) are all communicated with the gas inlet cavity, and the first gas transmission channel (140) is separated from the gas inlet cavity; The valve core (200) is provided with a first air outlet (210) and a second air outlet (220) which are distributed at intervals along the length direction of the valve core (200), the first air outlet (210) is used for communicating the open flame air transmission channel (130) with the air inlet cavity, a third air outlet (230) is arranged on one side of the valve core (200) at the second air outlet (220), the valve core (200) can rotate between the first working position and the second working position to adjust the contact ratio between the second air outlet (220) and the first air transmission channel (140), the valve core (200) can rotate between the second working position and the third working position to adjust the contact ratio between the second air outlet (220) and the second air transmission channel (150) and the contact ratio between the third air outlet (230) and the first air transmission channel (140), the input port of the second air transmission channel (150) is a waist-shaped through hole, the waist-shaped through hole is arranged along the length direction of the valve body (100) and is provided with the second air transmission channel (140) with the same diameter as the waist-shaped through hole, and the diameter of the waist-shaped through hole is equal to the diameter of the second air transmission channel (140).
  2. 2. A multi-channel plug valve as defined in claim 1, wherein, When the valve core (200) rotates, the second air outlet (220) can be communicated with the first air conveying channel (140) or the second air outlet (220) is communicated with the second air conveying channel (150).
  3. 3. A multi-channel plug valve as defined in claim 2, wherein, The third air outlets (230) and the second air outlets (220) are distributed around the valve core (200) at intervals in the circumferential direction, the valve core (200) can rotate until the second air outlets (220) are communicated with the second air conveying channel (150), and the third air outlets (230) are communicated with the first air conveying channel (140).
  4. 4. A multi-channel plug valve as defined in claim 3, wherein, The valve core (200) is provided with a separation part (240) between the second air outlet (220) and the third air outlet (230), the separation part (240) is inwards recessed towards the center of the valve core (200) to form a communication groove (250) for communicating the second air outlet (220) with the third air outlet (230), and when the separation part (240) is opposite to the first air conveying channel (140), the third air outlet (230) is communicated with the first air conveying channel (140) through the communication groove (250).
  5. 5. A multi-channel plug valve as defined in claim 3, wherein, An angle positioning mechanism is arranged between the valve core (200) and the valve body (100), and the angle positioning mechanism can stabilize the valve core (200) at the second working position or the third working position.
  6. 6. A multi-channel plug valve as defined in claim 2, wherein, The first air outlet (210) comprises an arc-shaped air guide groove (211) arranged around the peripheral wall of the valve core (200), an exhaust hole (212) communicated with the air inlet cavity is formed in the bottom of the arc-shaped air guide groove (211), when the valve core (200) is in the closed position, the open-fire air transmission channel (130) is isolated from the arc-shaped air guide groove (211), and when the valve core (200) is in the first working position, the second working position and the third working position, the open-fire air transmission channel (130) is communicated with the arc-shaped air guide groove (211).
  7. 7. A multi-channel plug valve as defined in claim 1, wherein, The valve body (100) comprises a cylinder part, an inner channel of the cylinder part forms the air inlet cavity, the air inlet channel (120), the long open fire air transmission channel (130), the first air transmission channel (140) and the second air transmission channel (150) are formed on the outer peripheral side wall of the cylinder part, the valve core (200) is rotationally arranged at one end of the cylinder part, an electromagnetic valve (300) is arranged at the other end of the cylinder part, a switch opening is arranged in the cylinder part, and the electromagnetic valve (300) can be used for closing the switch opening so as to separate the air inlet channel (120) from the air inlet cavity.
  8. 8. A combustion apparatus comprising a multi-channel plug valve according to any one of claims 1-7.

Description

Multi-channel plug valve and combustion equipment Technical Field The invention relates to the technical field of gas cookers, in particular to a multi-channel plug valve and combustion equipment. Background Due to the variety of cooking forms, different cooking techniques such as frying and stewing also have different thermal demands. The current plug valve for the gas stove is generally a single channel, and the opening of the gas channel is controlled by rotating the angle of the valve core, so that the output flow of gas is regulated, and further, the fire adjustment is realized between the maximum fire position and the minimum fire position. However, the maximum flow value of the gas channel of the single-channel plug valve is smaller, so that the adjustment range of the fire power is smaller, and the fire power requirements of various gears cannot be met. Especially for commercial gas-cooker, need form long open fire and at least one circle of flame that is located long open fire periphery in the use, according to the diameter size of pan or the difference of culinary art mode, the flame size that needs also differs. Therefore, in the related art, some commercial gas stoves are provided with a plurality of circles of fire holes with power sequentially increased along the radial outward direction, and then the on-off of the plurality of circles of fire holes is respectively controlled through a plurality of plug valves, so that the switching of different firepower is realized. The plug valves are arranged to independently control the on-off of the plurality of circles of fire holes, so that the plug valves are required to be operated one by one when in use, the use is very inconvenient, and the cost is high. Disclosure of Invention The invention aims to at least solve one of the technical problems in the prior art, and therefore one of the purposes of the invention is to provide a multi-channel plug valve capable of simultaneously controlling the on-off of a plurality of channels, thereby improving the use convenience and reducing the cost, and the other purpose is to provide combustion equipment adopting the multi-channel plug valve. According to the embodiment of the first aspect of the invention, the multi-channel plug valve comprises a valve body, wherein an air inlet cavity is formed in the valve body, an air inlet channel, a long-open-fire air conveying channel, a first air conveying channel and a second air conveying channel which are communicated with the air inlet cavity are sequentially arranged on the side portion of the valve body, a valve core is rotatably arranged in the air inlet cavity and used for enabling at least one of the long-open-fire air conveying channel, the first air conveying channel and the second air conveying channel to be communicated with or isolated from the air inlet cavity, the long-open-fire air conveying channel, the first air conveying channel, the second air conveying channel, the air inlet channel, the first air conveying channel, the second air conveying channel, the open-fire air conveying channel, the first air conveying channel and the second air conveying channel are sequentially arranged in a circumferential mode around the rotation axis of the valve core, the valve core is provided with a closing position, a first working position, a second working position and a third working position, when the valve core is in the first working position, the valve core is communicated with the air inlet cavity, the long-open-fire air conveying channel, the second air conveying channel is communicated with the first air conveying channel, the second air conveying channel is communicated with the air inlet cavity, the first air conveying channel is communicated with the air inlet channel, the second air conveying channel is communicated with the first air conveying channel is communicated with the air inlet cavity, and the air inlet channel is communicated with the second air conveying channel, and the air inlet channel is communicated with the air inlet channel is sequentially, and the air inlet channel is communicated with the air inlet channel. A multi-channel plug valve according to an embodiment of the present invention has at least the following The beneficial effects are that: The multichannel plug valve with the structure can be used for communicating at least one of the first gas transmission channel and the second gas transmission channel with the long open flame gas transmission channel through the rotary valve core, so that the long open flame and flames with different power sizes are formed, different cooking modes are adapted, a plurality of single-channel plug valves are not required to be arranged for controlling the on-off of the channels, the use convenience is improved, and the cost is reduced. In some embodiments of the present invention, the valve core is provided with a first air outlet and a second air outlet which are distributed at intervals along