WO2014127725A1

WO2014127725A1 - Blower-type fully-premixing household gas stove

Info

Publication number: WO2014127725A1
Application number: PCT/CN2014/072336
Authority: WO
Inventors: 夏志生; 应哲林
Original assignee: 浙江美大实业股份有限公司
Priority date: 2013-02-20
Filing date: 2014-02-20
Publication date: 2014-08-28
Also published as: WO2014127724A3; WO2014127724A2; WO2014127727A1; WO2014127726A1

Abstract

A blower-type fully-premixing household gas stove comprising a gas conduit, a lighter (405), and a burner (200). An installation hole (302) is provided at the bottom of a drip pan (301), and the burner (200) is disposed inside the installation hole (302) and seals closed said hole (302). A pot stand (100) is disposed inside of the drip pan (301); the pot stand (100), the drip pan (301), and the burner (200) form an enclosed stove chamber burning area capable of blocking the inflow of air from below; and the burner (200) is near the top of the installation hole (302). The gas conduit connects to a fully-premixing chamber (211) of the burner (200) via a step-adjustment plug valve, a blower is connected to said premixing chamber (211), and the step-adjustment plug valve and a controller control the amount of air from the blower according to gas-intake level information so as to achieve a sound gas-to-air ratio. In the burner (200), burn strength is adjusted by changing the number of overlapping inner and outer flame-blocking rings (2062, 2032) and inner and outer flame-release rings (2061, 2031). The gas stove is high in heat efficiency and is easy to assemble.

Description

Blast-type full premixed domestic gas stove

Technical field

The invention relates to an blast type full premixed domestic gas stove.

Background technique

The air used in the combustion of the existing domestic gas stoves on the market is naturally sucked by the jet of the pipeline, and the intake air is introduced at the gas inlet port of the gas stove, and is mixed with the gas in the air passage of the burner to be combusted. The intake of air is determined by the ability to ignite. It cannot be controlled by humans. The damper can only be adjusted within the maximum range. It cannot be adjusted accurately. The adjustment of air volume requires professional skills, and the general consumer cannot implement it smoothly. In this way, the amount of air to be mixed cannot be artificially controlled, so that the amount of air and the incoming gas cannot maintain an optimal combustion matching ratio, resulting in incomplete combustion, so that the thermal efficiency of the gas stove is not high.

Summary of the invention

In order to overcome the shortcomings of the existing gas stoves, the thermal efficiency is not high, and the present invention provides an blast-type full premixed domestic gas stove. The technical solution adopted by the invention is:

An blast-type full premixed domestic gas stove includes a gas pipe, an igniter, a burner, and a gas pressure pipe is provided with a pressure regulating valve, wherein the gas pipe is connected to the burner through a stepped regulating plug valve a fully premixed chamber, a blower for blasting air is also connected to the fully premixed chamber;

The Hall element on the stepped regulating plug valve is connected to a controller pre-stored with a matching value of gas and air, and the output end of the controller is connected to a gear position adjusting switch of the air blower; the Hall element will The gear position information of the gas intake air is sent to the controller, and the controller controls the air volume of the air blower according to the gear position information of the gas intake air to achieve a reasonable ratio of gas to air;

The bottom of the liquid tray is provided with a mounting hole surrounded by an annular wall surface, the burner is disposed in the mounting hole, and the mounting hole is closed; the pot rack is disposed in the liquid tray, the bottom of the pot rack The opening abuts the outer side of the annular wall surface; the pan holder and the liquid pan and the burner surround a combustion chamber of the furnace chamber capable of blocking air from entering from below;

In the burner, the upper casing is connected to the lower casing, and the upper casing and the lower casing are provided with a partition, and the upper casing inner cavity and the lower casing inner cavity pass through the first impeller disposed on the partition a communication hole is connected; the lower case is connected to the air inlet;

An inner flame ring is disposed in the inner cavity of the upper casing, and the inner flame ring and the upper casing surround a gas distribution chamber; the inner flame ring includes an inner fire ring and an inner flame ring The inner fire ring is provided with a first groove extending from an inner edge to an outer edge, and an outer diameter of the inner flame ring is smaller than an outer diameter of the first groove, the inner flame The fire ring and the inner fire ring are alternately stacked, and the outer end of the first groove exposed to the inner flame retaining ring is in communication with the gas distribution chamber, and the inner end of the first groove constitutes an inner fire hole toward the axial direction ;

The top of the inner flame ring is provided with a large ring air ring that hermetically seals the inner flame ring from the upper surface;

An outer flame ring is disposed on an outer side of the top of the upper casing, and the outer flame ring includes an outer fire ring and an outer flame ring that are alternately stacked, and the outer fire ring extends inward from the outer edge thereof. The second groove, the outer flame blocking ring is provided with a through hole communicating with the inner end of the second groove, and the inner end of the second groove on the outgoing ring is mutually penetrated to form a gas conveying channel in a vertical direction. The outer end of the second groove constitutes an outwardly facing fire hole; the top of the outer flame ring is provided with a gas-tight upper top cover; the inner side of the top of the upper casing is provided with a drainage ring, the drainage The ring has a third groove extending inwardly from the outer edge thereof, the outer end of the third groove is in communication with the gas distribution chamber, and the inner end of the third groove is connected to the gas delivery channel of the outer flame ring The partition has a convex cavity protruding toward the inner cavity of the lower casing, and an outer wall of the convex cavity encloses the inner cavity of the lower casing into a ring-shaped full premixing cavity, wherein the full premixing cavity a gas flow guiding plate for guiding gas to enter along the annular air passage; the full premixing chamber passing through the first A gas communication hole of the distribution chamber.

The specific structure of the burner for closing the mounting hole is that the burner is generally in the shape of a circular cylinder, and the central passage of the burner has a convex skirt, and the skirt is clamped at Between the upper positioning piece and the lower positioning piece; the outer side of the burner has an annular flange, and the annular flange is adjacent to the top of the mounting hole.

The gas pipe, the air blower and the air inlet in the full premixing chamber are connected to a connecting device; An inner disk is further disposed in the hole, the inner disk is connected to the lower connector bracket by screws, and the connector bracket is fixed on the gas stove frame; the upper positioning piece and the lower positioning piece pass the small fire core and the small fire core A cap connects the connected bracket.

The burner is provided with a temperature probe, the temperature probe is connected to the controller, and the output of the controller is connected to a solenoid valve on the gas pipe.

The upper casing is provided with a second communication hole, and the second communication hole communicates with the inner end of the third groove of the drainage ring and the gas transmission channel.

The outer end of the third groove of the drafting ring is directly exposed within the gas distribution chamber.

The partition, the inner flame ring, the large ring air block, the drain ring, the outer flame ring, the upper casing and the upper top cover The pin holes are provided with axial through holes, and are fixed to each other by pinning.

a flame ring is disposed between the outer flame ring and the upper casing, and the flame ring is provided with a fourth groove extending from the inner edge to the outer edge, and the width of the fourth groove is narrower than the outer ring The width of the second groove on the fire ring.

The upper top cover is provided with a safety column for preventing the bottom of the pot from completely fitting the top of the burner.

The air inlet seat is provided with a retaining ring, and the main channel tube is provided with a chamfer preventing liquid from infiltrating.

One end of the upper casing connected to the lower casing is provided with a hem covering the partition and the lower casing, and the upper casing, the partition and the lower casing are riveted.

The stepped regulating plug valve according to the present invention is a manual gas appliance gas flow rate adjustable plug valve disclosed in Chinese Patent No. CN202561170U.

The pan holder and the liquid pan and the burner according to the present invention are combined to form a combustion chamber of the cavity capable of blocking the air from being filled from below. The blocking air in the present invention refers to the relevant component in the presence of an assembly gap. Limit the free flow of air.

The beneficial effects of the present invention are as follows: (1) The amount of air required for combustion is quantitatively pulsed by the air blower according to the amount of gas intake air, and is naturally changed from a conventional jet to a forced type, eliminating the human error factor of adjusting the amount of air, which is convenient. Adjustment, the air can be accurately supplemented according to the optimal combustion matching ratio. The air and the gas are mixed in the connected machine and then enter the burner for combustion, so that the air and the gas are fully burned, not only the thermal efficiency is high, but also complete combustion, energy saving and emission reduction, green environmental protection (2) The use of a step-regulating plug valve to accurately control the gas input, accurately correspond to the power of each gear, with a temperature probe and controller, to achieve intelligent control; (3) pot rack and liquid tray, The burner surrounds the combustion zone of the furnace chamber which can block the air entering from below, which not only isolates the secondary replenishment of the air, but also keeps the combustion air and the gas at a predetermined optimal matching ratio, and the bottom of the boiler is enclosed with the combustion zone. , reducing the loss of heat. At the same time, the structure of the protection combustion zone is not eroded by the spilled liquid, and the connection part is not easy to be rusted; (4) The detachable connection between the components of the gas stove is simple and convenient, and the maintenance and replacement are easy; (5) The flame in the burner is blocked by fire. The ring and the inner fire ring are alternately stacked to form an inner fire hole, and the outer flame blocking ring and the outgoing fire ring are alternately stacked to form an outgoing fire hole, and the inner fire hole has less heat exchange with the outside, so that the combustion heat rate is higher; The number of inner and outer flame blocking rings and the number of inner and outer fire rings can adjust the area of the fire hole inside and outside the fire hole, that is, change the burning power, so that a variety of power burners can be combined as needed. Generalized and modularized, it can greatly reduce the inventory of parts and capital, and it is easy to assemble, fast, and simple in processing.

DRAWINGS

Figure 1 is a structural exploded view of the present invention

Figure 2 is a plan view of the overall structure of the present invention

Figure 3 is a cross-sectional view of the Α-Α surface of the present invention

Figure 4 is a cross-sectional view of the Β-Β surface of the present invention

Figure 5 is a structural exploded view of the burner of the present invention

Figure 6 is a schematic view showing the overall structure of the burner of the present invention

Figure 7 is a partially cutaway schematic view of the burner of the present invention

Figure 8 is a plan view of the burner of the present invention

Figure 9 is a cross-sectional view of the c-c surface of the burner of the present invention

Figure 10 is a schematic view showing the structure of the inner flame block of the burner of the present invention Figure 11 is a schematic view showing the structure of the inner fire ring of the burner of the present invention.

Figure 12 is a schematic view showing the structure of a large ring retaining ring of the burner of the present invention

Figure 13 is a schematic view showing the structure of the upper top cover of the burner of the present invention

Figure 14 is a schematic view showing the structure of the flame ring of the burner of the present invention.

Figure 15 is a schematic view showing the structure of the fire ring of the burner of the present invention

Figure 16 is a schematic view showing the structure of the outer flame blocking ring of the burner of the present invention.

Figure 17 is a schematic view showing the structure of the lower casing of the burner of the present invention

detailed description

Referring to the drawings, an blast-type fully premixed domestic gas stove includes a gas pipe, an igniter 405, a burner 200, and a gas pressure pipe is provided on the gas pipe.

The gas pipe is connected to the full premixing chamber 211 of the burner 200 through a stepped regulating plug valve, and the blower for injecting air is also connected to the full premixing chamber 211;

The bottom of the liquid receiving tray 301 is provided with a mounting hole 302 formed by an annular wall surface 3021. The burner 200 is disposed in the mounting hole 302 and closes the mounting hole 302. The pot holder 100 is disposed in the liquid receiving tray 302. In the tray 301, the bottom opening of the pan holder 100 abuts the outer side of the annular wall surface 3021. The pan holder 100 and the liquid pan 301 and the burner 200 are combined to form a combustion chamber of the cavity capable of blocking air from entering from below. ;

In the burner, the upper casing 205 is connected to the lower casing 208, and a partition 207 is disposed between the upper casing 205 and the lower casing 208, and the upper casing inner cavity and the lower casing inner cavity are disposed in the The first communication hole 2071 on the partition 207 is in communication; the lower housing 208 is connected to the air inlet 209;

The inner flame ring 206 is disposed in the inner cavity of the upper casing, and the inner flame ring 206 and the upper casing 205 surround the gas distribution chamber 204; the inner flame ring 206 includes an inner fire ring 2061. And the inner flame blocking ring 2062, the inner ring of fire 2061 is provided with a first groove 20611 extending from the inner edge to the outer edge, and the outer diameter of the inner flame ring 2062 is smaller than the first groove The outer diameter of 20611, the inner flame ring 2062 and the inner ring 2061 are alternately stacked, and the outer end of the first groove 20611 exposed to the inner flame ring 2062 communicates with the gas distribution chamber 204. The inner end of the first groove 20611 constitutes an inner fire hole in the axial direction;

The top of the inner flame ring 206 is provided with a large ring air retaining ring 214 that hermetically seals the inner flame ring 206 from the upper surface; the outer side of the top of the upper casing 205 is provided with an outer flame ring 203. The outer flame ring 203 includes an outer fire ring 2031 and an outer flame ring 2032 which are alternately stacked, and the outer fire ring 2031 has a second groove 20311 extending inwardly from an outer edge thereof. The ring 2032 is provided with a through hole 20321 communicating with the inner end of the second groove, and the inner ends of the second groove 20311 on the outgoing fire ring are mutually penetrated to form a first gas conveying passage in a vertical direction, the second The outer end of the groove 20311 constitutes an outward fire hole facing the fire mouth; the top of the outer flame ring 203 is provided with a gas-tight upper top cover 202; the inner side of the top of the upper casing 205 is provided with a drainage ring 213, The drain ring 213 has a third groove 2131 extending inwardly from the outer edge thereof. The outer end of the third groove 2131 communicates with the gas distribution chamber 4, and the inner end of the third groove 2131 and the outer flame ring The gas delivery channel of the circle 203 is connected;

The partition 207 has a convex cavity 2072 protruding toward the inner cavity of the lower casing, and an outer wall of the convex cavity 2072 surrounds the inner cavity of the lower casing 208 into a ring-shaped full premixing chamber 211, An airflow guiding plate 2081 for guiding gas to enter along the annular air passage is provided at the air inlet of the pre-mixing chamber 211; the full pre-mixing chamber 211 communicates with the gas through the first communication hole 2071. The chamber 204 is assigned.

The specific structure of the burner 200 for closing the mounting hole 302 is that the burner 200 is generally in the shape of a circular cylinder, and the central passage of the burner 200 has a convex skirt 2082. The skirt 2082 is clamped on the upper positioning piece 307 Between the lower positioning piece 305 and the lower positioning piece 305; the outer side of the burner 200 has an annular flange 2052 which is adjacent to the top of the mounting hole 302.

The gas pipe, the air blower and the air inlet 209 in the full premixing chamber 211 are connected to a communicating device 402. The mounting hole 302 of the liquid receiving tray 301 is further provided with an inner disk 303, and the inner disk 303 is provided. The lower bracket bracket 401 is connected to the gas stove frame by a screw 304. The upper positioning piece 307 and the lower positioning piece 305 are connected by the small fire core 404 and the small fire core cap 4041. The connector bracket 401.

The burner 200 is provided with a temperature probe connected to the controller, and the output of the controller is connected to a solenoid valve on the gas pipe.

The upper casing 205 is provided with a second communication hole 2051, and the second communication hole 2051 communicates with the inner end of the third groove 2131 of the draft ring 213 and the gas delivery passage.

The outer end of the third groove 2131 of the drafting ring 213 is directly exposed to the gas distribution chamber 204.

The partition 207, the inner flame ring 206, the large ring air block 214, the draft ring 213, the outer flame ring 203, the upper casing 205, and The upper top cover 202 is provided with axially through pin holes, which are fixed to each other by pinning.

A flame ring 212 is disposed between the outer flame ring 203 and the upper casing 205, and the flame ring 212 is provided with a fourth groove 2121 extending from the inner edge toward the outer edge, and the fourth groove The width of 2121 is narrower than the width of the second slot 20311 on the exiting fire ring 2031.

The upper top cover 202 is provided with a safety column 2010 for preventing the bottom of the pot from completely fitting the top of the burner.

The air inlet seat 209 is provided with a retaining ring, and the main passage tube 403 is provided with a chamfer preventing liquid from penetrating.

One end of the upper casing 205 connected to the lower casing 208 is provided with a hem covering the partition 207 and the lower casing 208, and the upper casing 205, the partition 207 and the lower casing 208 Riveting.

One side of the connector 402 is fixed on the connector bracket 401, and the air cooler 402 is provided with a blower connection port 4023, a small fire gas nozzle 4021, a burner gas nozzle 4022, and a gas supply for burning the burner from the burner. The gas nozzle 4022 enters the burner mixing tube 407 and mixes with the air blown by the blower to sequentially pass through the main passage tube 403, the intake seat 209, and finally enters the burner 200 for combustion; and supplies the gas required for the small core cap 4041 to burn. The small fire core gas nozzle 4021 enters the small fire core mixing tube 406 and mixes with the air blown by the air blower, passes through the small fire core 404, and finally enters the small fire core cap 4041, and the communicater 401 is in the air leading to the small fire core 404. A plurality of variable orifices 40211 are provided in the passage to distribute the air entering the small core cap 4041.

During installation, the liquid tray 301 is first placed at the corresponding position of the integrated cooker casing, and the inner disk 303 is placed on the top of the mounting hole 302, and the inner disk 303 is fixed to the connector bracket 401 by using the screw 304, and then placed in the lower position. a sheet 305, a heat conducting sheet 306, a burner 200, and an upper positioning piece 307; a bottom portion of the lower casing 208 of the burner 200 is provided with a skirt 2082 protruding inward; the upper positioning piece 307, the skirt 2082, the bottom The positioning piece 305 fixes the burner 200 by the clamping of the small fire core 404 and the small fire cap 4041. Finally, the pan holder 100 is placed in the liquid pan 301.

A sheet-shaped heat conductive sheet 306 is disposed between the upper positioning piece 307 and the lower positioning piece 305. The heat conductive piece 306 can function as a spacer to maintain the flatness of the connecting surface while using the heat conductive sheet 306 made of a heat conductive material. , can also play a role in strengthening heat conduction.

The Hall element on the stepped regulating plug valve disposed on the gas pipeline collects the information of the gas intake air amount, and then feeds back to the controller in time, and the controller controls the blower according to the pre-stored optimal matching ratio of gas and air. The amount of air blows keeps the input air and gas in an optimal ratio, and because the pan holder 100 and the liquid pan 301 and the burner 200 are combined to form a combustion chamber that can block the air from entering from below and from the side, the air is eliminated. The secondary replenishment keeps the gas and air in the burner 200 in an optimal ratio, and can achieve complete combustion, which is not only high in thermal efficiency, but also energy-saving and environmentally friendly.

a temperature probe is disposed in the burner 200, the temperature probe is connected to the controller, and an output end of the controller is connected to a solenoid valve on the gas pipe, and the combustion temperature in the burner 200 is When it is too high, the temperature probe transmits the over-temperature signal to the controller in time. The controller cuts off the gas transmission by controlling the solenoid valve, effectively preventing fire. use.

A partition 207 is airtightly disposed between the upper casing 205 and the lower casing 208, and the upper casing 205 and the lower casing 208 are communicated only through the first communication hole 2071.

Preferably, the outgoing fire ring 2031 and the outer flame ring 2032 are concentric annular.

Preferably, the inner fire ring 2061 and the inner flame ring 2062 are concentric annular.

Preferably, the flame ring 212 disposed between the outer flame ring 203 and the upper casing 205 is concentric with the outer flame ring 203.

The outer wall of the convex cavity 2072 encloses the inner cavity of the lower casing into a ring-shaped full premixing chamber 211. After the premixed gas enters from the air inlet seat 209, under the guidance of the airflow guiding plate 2081, The annular full premixing chamber 211 stabilizes the intake air; the gas is further mixed in the full premixing chamber 211 and then enters the gas distribution chamber 204 through the first communication hole 2071 on the partition 207; into the gas distribution chamber 204. The gas inside is continuously shunted into the inner inner flame ring 206, a part of the gas horizontally ignites at the inner fire hole, and the other part passes through the drain ring 213 and the second communication provided on the upper casing 205 in sequence. The hole 2051 enters the gas delivery passage of the outer flame ring 203 and burns at the exit fire hole.

The inner fire ring 2061 has a first groove 20611, and the inner flame ring 2062 stacked on the upper and lower sides of the inner fire ring 2061 surrounds the first groove 20611 into an inner fire hole, and the inner flame blocks the fire. The outer diameter of the ring 2062 is smaller than the outer diameter of the first groove 20611, and the outer end of the first groove 20611 exposed to the inner flame ring 2062 communicates with the gas distribution chamber 204 to form a passage for the intake of the fire hole. .

The outer flame ring 203 is composed of an outer fire ring 2031 and an outer flame ring 2032. The outer fire ring 2031 has a second groove 20311 extending inwardly from an outer edge thereof. The ring 2032 is provided with a through hole 20321 communicating with the inner end of the second groove 20311, and the inner ends of the second groove 20311 on the outgoing fire ring 2031 are mutually penetrated to form a second gas conveying passage in a vertical direction, and the second communication is The gas entering the hole 2051 enters the second gas delivery passage and is continuously diverted to the exiting fire hole of the side for combustion.

A flame ring 212 is disposed between the outer flame ring 203 and the upper casing 205, and the flame ring 212 has a fourth groove 2121 extending inwardly from an outer edge thereof, the flame ring The 212 has the same structure as the outgoing fire ring 2031, but the opening width of the fourth groove 2121 is narrower than the opening width of the second groove 20311 on the exiting fire ring 2031, and the flame ring 212 and the upper and lower sides thereof are located. The outer flame retaining ring 2032 and the upper casing 205 form a fire hole having a small fire hole area, and the fire hole can consume a part of the gas, and share the gas pressure in the gas conveying passage of the outer flame ring 203 to ensure the outer pressure. When the fire hole in the flame ring 203 is burned, there is no case of leaving the flame.

The drainage ring 213 is formed by laminating one or a plurality of outgoing fire rings 2031, and the third grooves 2131 on the drainage ring 213 are aligned to form a gas passage through the gas delivery passages of the gas distribution chamber 4 and the outer flame ring 3, and are used for change. The number of the exiting fire rings 31 of the draining ring 213 can be adjusted to adjust the intake air length of the outer flame ring 3, thereby changing the pressure loss of the gas from the gas distributing chamber 4 into the gas conveying passage of the outer flame ring 3. The amount acts to adjust the intake pressure of the gas delivery passage of the outer flame ring 3 to ensure the stability of the fire exiting.

The lower portion of the inner flame ring 206 is provided with a certain inner flame blocking ring 2062, mainly for ensuring that the height of the inner flame ring 206 is suitable for the height of the inner casing inner cavity, and the fixing requirement is satisfied.

The partition 207, the inner flame ring 2062, the inner fire ring 2061, the outgoing fire ring 2031, the outer flame ring 2032, the upper casing 205, and the The upper top cover 202 is provided with an axially extending pin hole and is fixed by the pin 201.

The large ring air retaining ring 214 hermetically seals the inner flame ring 206 from the upper surface, ensuring that the gas entering the outer flame ring 203 must pass through the draft ring 213.

The inner fire hole is formed by alternately stacking the inner flame retaining ring 2062 and the inner fire ring 2061. By changing the number of the inner flame ring 2062 or the inner ring 2061 in each alternating layer, for example, using multiple pieces of aligned Inside the ring of fire 2061 and The inner flame blocking ring 2062 is alternately stacked, which can increase the fire area of the inner fire hole, that is, increase the combustion efficiency of the inner fire hole, and vice versa, reduce the combustion efficiency of the inner fire hole; similarly, the fire hole can be adjusted. The combustion efficiency is effective to achieve easy adjustment of the combustion efficiency of the burner.

The inner fire hole and the outer fire hole share the gas distribution chamber 204 air intake, effectively ensuring that the exit fire hole has sufficient gas supply amount, which is an effect that cannot be achieved by using a separate air inlet channel to supply air to the outer fire hole.

In order to prevent the bottom of the burner from being blocked by the bottom of the pot having a smaller pot bottom, the upper top cover 202 is provided with a safety column 210 for preventing the bottom of the pot from completely sealing the top of the burner. Preferably, the The safety post 210 is designed as a hollow cylinder that can be directly placed over the top of the pin 201.

The intake end of the air inlet seat 209 is connected to the main passage tube 403. The air inlet seat 209 is provided with a retaining ring. The chamfer provided on the main passage tube 403 prevents liquid from infiltrating into the air inlet seat. The connection gap between the 209 and the main passage tube 403 prevents rust and prolongs the service life.

One end of the upper casing 205 connected to the lower casing 208 is provided with a hem covering the partition 207 and the lower casing 208, and the upper casing 205, the partition 207 and the lower casing 208 The riveting and riveting manner is very suitable for the airtightness of the connection between the upper casing 205, the partition 207 and the lower casing 208 in the quenching and heating environment. After the connection, the upper casing 205 is connected. The rim and the lower casing 208 together form an annular flange 2052 of the burner 200.

The content described in the embodiments of the present specification is merely an enumeration of the implementation forms of the inventive concept, and the scope of the present invention should not be construed as being limited to the specific forms stated in the embodiments. Equivalent technical means that a person can think of in accordance with the inventive concept.

Claims

claims

1. A blast-type fully premixed household gas stove, including a gas pipe, an igniter, and a burner. The gas pipe is provided with a pressure regulating valve. It is characterized by:

The gas pipe is connected to the full premixing chamber of the burner through a step-adjustable plug valve, and the blower used to blow air is also connected to the full premixing chamber;

The Hall element on the step-adjustable plug valve is connected to a controller that has pre-stored matching values for gas and air, and the output end of the controller is connected to the gear adjustment switch of the blower; the Hall element will The gas inlet gear information is transmitted to the controller, and the controller controls the air volume of the blower based on the gas inlet gear information to achieve a reasonable ratio of gas and air;

The bottom of the liquid tray is provided with a mounting hole enclosed by an annular wall. The burner is arranged in the installation hole and the installation hole is closed; the pot rack is arranged in the liquid tray, and the bottom of the pot rack The opening is close to the outside of the annular wall; the pot rack, liquid tray, and burner enclose a furnace cavity combustion area that can block air from entering from below;

In the burner, the upper shell is connected to the lower shell, a partition is provided between the upper shell and the lower shell, and the inner cavity of the upper shell and the inner cavity of the lower shell pass through a third cavity provided on the partition. A connecting hole is connected; the lower shell is connected to the air inlet seat;

The inner flame ring is arranged in the inner cavity of the upper housing, and the inner flame ring and the upper housing form a gas distribution chamber; the inner flame ring includes an inner flame ring and an inner flame fire blocking ring. , the inner fire ring is provided with a first groove extending from the inner edge to the outer edge, the outer diameter of the inner flame fire ring is smaller than the outer diameter of the first groove, and the inner flame The fire blocking ring and the inner fire ring are stacked alternately. The outer end of the first groove exposed on the inner flame fire blocking ring is connected with the gas distribution chamber. The inner end of the first groove forms an inner fire hole facing the axis direction. ;

The top of the inner flame ring is provided with a large ring gas barrier that air-tightly covers the inner flame ring from the upper surface;

An outer flame ring is provided on the outside of the top of the upper housing. The outer flame ring includes alternately stacked outgoing fire rings and outer flame fire blocking rings. The outgoing fire ring has a flame ring extending inward from its outer edge. the second groove, the outer flame fire ring is provided with a through hole communicating with the inner end of the second groove, and the inner ends of the second groove on the outer flame ring penetrate each other to form a gas transportation channel in the vertical direction, The outer end of the second groove forms an outward fire hole; the top of the outer flame ring is provided with an airtight upper cover; the inner side of the top of the upper housing is provided with a drainage ring, and the drainage ring The ring has a third groove extending inward from its outer edge. The outer end of the third groove is connected to the gas distribution chamber. The inner end of the third groove is connected to the gas delivery channel of the outer flame ring. ; The partition plate has a convex cavity protruding toward the inner cavity of the lower housing, and the outer wall of the convex cavity encloses the inner cavity of the lower housing into an annular full premixing chamber. The air inlet is provided with an air flow guide plate that guides the gas to enter along the annular air channel; the full premixing chamber is connected to the gas distribution chamber through the first communication hole.

2. A blast-type fully premixed household gas stove as claimed in claim 1, characterized in that: the specific structure of the burner closing the installation hole is: the burner is generally in the shape of a circular column, The central channel of the burner has a protruding skirt, and the skirt is clamped between the upper positioning piece and the lower positioning piece; there is an annular flange on the outside of the burner, and the annular flange is The convex edge is close to the top of the mounting hole.

3. A blast type fully premixed household gas stove as claimed in claim 2, characterized in that: the gas pipe, the blower and the fully premixed chamber are all connected to a connector; There is also an inner plate in the installation hole of the liquid plate. The inner plate is connected to the connector bracket below through screws. The connector bracket is fixed on the gas stove frame; the upper positioning piece and the lower positioning piece are connected through the small fire core and The small fire core cap is connected to the connector bracket.

4. A blast type fully premixed household gas stove as claimed in claim 3, characterized in that: the burner is provided with a temperature probe, and the temperature probe is connected to the controller, and the controller is The output end is connected to the solenoid valve on the gas pipe.

5. A blast type fully premixed household gas stove according to claim 4, characterized in that: the upper shell is provided with a second communication hole, and the second communication hole is connected to the third part of the drainage ring. The inner end of the three grooves and the gas delivery channel.

6. A blast-type fully premixed household gas stove as claimed in claim 5, characterized in that: the outer end of the third groove of the drainage ring is directly exposed in the gas distribution cavity.

7. A blast type fully premixed household gas stove as claimed in claim 6, characterized in that: the partition, The inner flame ring, the large ring gas barrier ring, the drainage ring, the outer flame ring, the upper housing and the upper top cover are provided with axially penetrating Pin holes are fixed to each other by pin connection.

8. A blast type fully premixed household gas stove as claimed in claim 7, characterized in that: a flame stabilizing ring is provided between the outer flame ring and the upper shell, and a flame stabilizing ring is provided on the flame stabilizing ring. A fourth groove extending from the inner edge to the outer edge is provided, and the width of the fourth groove is narrower than the width of the second groove on the outgoing fire ring.

9. A blast-type fully premixed household gas stove as claimed in claim 8, characterized in that: the upper top cover is provided with a safety column that prevents the bottom of the pot from completely fitting the top of the burner.

10. A blast type fully premixed household gas stove as claimed in claim 9, characterized in that: the air inlet seat is provided with a retaining ring, and the main channel pipe is provided with chamfers to prevent liquid penetration.

11. A blast type fully premixed household gas stove as claimed in claim 10, characterized in that: one end of the upper shell connected to the lower shell is provided with a spacer to accommodate the partition and the lower shell. The upper shell, partition plate and lower shell are riveted.