CN209857115U - Large range - Google Patents

Abstract

The utility model discloses a big pot stove, including the kitchen body, the rear side is fixed with vertical backplate on the kitchen face of the kitchen body, installs the furnace gate on the front panel of the kitchen body, is equipped with furnace in the kitchen body, and the furnace end is installed to the bottom of furnace, installs emergent ignition system in the kitchen body, and the firing bar valve is installed in the air inlet of main gas pipeline, and the gas gets into main gas pipeline through the air inlet of main gas pipeline to get into the furnace end through the solenoid valve in proper order, form the main gas circuit, emergent change-over valve with solenoid valve parallel connection constitutes reserve gas circuit; when the electromagnetic valve stops working, gas path switching is realized through the standby gas path by the gas. Big pot and stove have emergent ignition system and flame-out protection device, when electronic component appears damaging, emergent ignition system can ignite again, reduces maintenance latency, the response needle is when not sensing flame temperature, the solenoid valve is in the closed condition, prevents that the gas from leaking, has protected chef's safety.

Description

Large range

Technical Field

The utility model relates to a gas-cooker technical field, concretely relates to structure of big pot and stove.

Background

As a heating device for cooking, gas stoves have been used by people around the world, and include small gas stoves for general and civil use and large gas stoves for food processing factories in unit canteens and catering establishments, and the existing large gas stoves are not provided with a flameout protection device, so that the safety is poor, and accidental flameout easily causes gas leakage accidents; the big cooking stove provided with the flameout protection device is characterized in that any electronic component such as an ignition needle, an induction needle, an electromagnetic valve or a control box is damaged, the whole cooking stove system is paralyzed and cannot be used, only one layer of the furnace door of the traditional big cooking stove is provided, the heat insulation effect is poor, when the big cooking stove is operated, the heat conduction is fast, the furnace door is very hot, burn can be caused to a user, the heat loss also causes the reduction of the heat efficiency, the single-layer furnace door is easy to deform after being heated for a long time, the stainless steel panel is easy to be closed, even flame is blown outwards, a part of people are made into double-layer furnace doors, the double-layer furnace doors are sealed, if the furnace doors need to be opened in a state of watching flame, the furnace doors are hot waves once opened, the burn can be caused to the user, and the. The furnace end on the traditional large cooking stove has large noise, large air consumption, short service life and easy deformation after long-time burning; uneven fire, not violent fire, not high flame temperature; the combustion is insufficient, the discharge amount of carbon monoxide exceeds the standard, and the influence on the health of kitchen workers is great; the ignition needle and the induction needle are exposed outside and are easy to damage by 'quenching' when meeting water at high temperature; the furnace core is easy to accumulate water and block, and normal use is affected.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the not enough of prior art, the utility model provides a big pot and stove has solved the unexpected safety problem that leads to of putting out, the emergent use problem that electronic components damaged and lead to and the furnace gate scalds one's hand, and flame is observed, is ponding in the kitchen, the insufficient life-span problem of parts such as furnace, furnace end of burning.

The technical scheme is as follows: the utility model discloses a cauldron kitchen, including the kitchen body, the rear side is fixed with vertical backplate on the kitchen face of the kitchen body, installs the furnace gate on the front panel of the kitchen body, is equipped with furnace in the kitchen body, the furnace end is installed to the bottom of furnace, installs emergent ignition system in the kitchen body, emergent ignition system includes main gas pipeline, solenoid valve, emergent change-over valve and ignition rod valve, the ignition rod valve is installed in the air inlet of main gas pipeline, and the gas gets into main gas pipeline through the air inlet of main gas pipeline to get into the furnace end through the solenoid valve in proper order, form main gas circuit, emergent change-over valve with solenoid valve parallel connection constitutes reserve gas circuit; when the electromagnetic valve stops working, gas path switching is realized through the standby gas path by the gas.

Preferably, the burner comprises an induction needle, an ignition needle, a seedling fire rod, a firing ring, a igniter, a fluid director and a premixing chamber, wherein the firing ring, the igniter, the fluid director and the premixing chamber are sequentially arranged from top to bottom; the bottom of the inner side surface of the ignition ring is provided with a shielding space for hiding the ignition needle head, the induction needle head and the end part of the seedling fire rod.

Preferably, the burner further comprises an overflow pipe for draining water, the overflow pipe penetrates through the igniter, the flow guider and the premixing chamber, and the lower end of the overflow pipe is fixed to and penetrates through the bottom of the premixing chamber.

Preferably, a plurality of air inlets are formed in the bottom of an enclosed space formed in the inner cavity of the premixing cavity along the circumference, and the openings of the air inlets are in a slope shape, so that the gas and the air rotate when entering the premixing cavity, and the premixing is more sufficient.

Preferably, the kitchen is internal including the control box, be equipped with the singlechip in the control box, the control box with solenoid valve, response needle and ignition needle electric connection, when the furnace end burning, the response needle is burnt red, and the transmission signal gives the control box, control box drive solenoid valve is opened, and the gas enters into the furnace end, otherwise, the furnace end is flamed out, and the response needle does not have the signal transmission to the control box, the solenoid valve is closed, and the gas can't get into.

Preferably, the furnace door comprises a furnace door main body, a fire observation opening and a fire observation assembly fixedly arranged on one side of the furnace door main body and the furnace door main body, wherein a first through hole is formed in the center of the furnace door main body, and the fire observation opening is arranged on the furnace door main body through the first through hole; the fire observation assembly comprises a lens mounting plate, a mounting cavity and a quartz lens, the lens mounting plate is fixedly mounted with the mounting cavity, a second through hole is formed in the lens mounting plate, a third through hole is formed in the relative position of the mounting cavity, and the quartz lens is mounted between the second through hole and the third through hole.

Preferably, the fire observation port is axially provided with a fourth through hole for observing the seedling fire.

Preferably, the oven door main body comprises a mounting frame, and the inner surface of the mounting frame is filled with a first ceramic fiberboard.

Preferably, the furnace door main body is close to the radial two ends of the first through hole on one side of the fire observation assembly and is provided with a saddle-shaped fixing base, and the lens mounting plate of the fire observation assembly is fixed on the saddle-shaped fixing base.

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: 1. the utility model discloses a big pot and stove have emergent ignition system and flame-out protection device, when electronic component appears and damages, cuts off the fire that the power supply or other circumstances lead to, emergent ignition system can ignite again, reduces the maintenance latency, and flame temperature is not sensed in the response needle of flame-out protection system, and the solenoid valve is in the closed condition, prevents the emergence of gas leakage accident, thereby has protected the safety of chef's person and kitchen property; 2. the furnace door of the utility model is a double-layer heat insulation, which not only blocks the heat transfer of the furnace chamber, so that the furnace door is not scalded, but also can reduce the loss of heat energy and ensure the heat efficiency; the quartz lens is combined with the furnace door main body, so that the flame combustion state can be clearly observed under the closing state of the furnace door; after the electronic ignition in the large cooking stove fails, the furnace door can be used as an emergency ignition port; 3. the furnace end structure makes gas and air get into main intake pipe, carries out the first time and mixes in advance, and the rethread is a plurality of slope form inlet ports and carries out the second time and mix in advance, and gas is anticlockwise rotation in the cavity, makes to mix in advance more fully. After the mixed gas passes through the gap between the lower end of the igniter and the bell mouth at the upper end of the fluid director, the noise of the burner during combustion is lower, the combustion is more sufficient, and the energy is more saved; 4. the seedling fire rod hidden is not easy to extinguish, and the ignition needle and the induction needle are not accidentally splashed by water at high temperature to cause quenching damage.

Drawings

Fig. 1 is a schematic structural view of a large cooking range according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a range body according to an embodiment of the present invention;

FIG. 3 is a partially enlarged schematic view of region A in FIG. 2;

fig. 4 is a schematic structural diagram of an emergency ignition system according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a burner according to an embodiment of the present invention;

fig. 6 is an exploded view of a burner according to an embodiment of the present invention;

fig. 7 is a top view of a burner according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the R-R axis of FIG. 7;

FIG. 9 is a schematic structural view of an igniter according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of an ignition device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an overflow cover according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a premixing chamber according to an embodiment of the present invention;

FIG. 13 is a schematic view of a sequence of gas and air entering the burner according to one embodiment of the present invention;

fig. 14 is a front view of the oven door structure according to one embodiment of the present invention;

fig. 15 is a rear view of the oven door structure according to one embodiment of the present invention;

figure 16 is a side view of an oven door structure according to one embodiment of the present invention;

fig. 17 is an exploded view of the structure of the oven door according to one embodiment of the present invention;

fig. 18 is an exploded view of the oven door structure according to an embodiment of the present invention.

The figure includes: the stove body 1, the hearth 11, the pot ring 111, the stove head 12, the ignition ring 121, the shielding space 1211, the igniter 122, the igniter outer ring 1221, the fixing plate 12211, the igniter inner ring 1222, the overflow hole 1223, the deflector 123, the bell mouth upper end 1231, the cylindrical tail end 1232, the bevel opening 1233, the premixing chamber 124, the air inlet 1241, the induction needle 125, the ignition needle 126, the flame rod 127, the overflow pipe 128, the main air inlet pipe 129, the drain hole 1291, the overflow cover 1210, the gap 1230, the smoke outlet pipe 13, the smoke outlet 131, the emergency ignition system 14, the solenoid valve 141, the emergency changeover valve 142, the main air pipe 143, the ignition rod valve 144, the leakage protector 15, the control box 16, the blower 17, the stove face 2, the rear baffle 3, the smoke cap 4, the cooling system 5, the cooling water valve 51, the first connecting pipe 52, the spray pipe 53, the water outlet 531, the faucet control valve 54, the second connecting pipe 55, the third connecting pipe 56, the stove, the fire door comprises a fire door main body 61, a first through hole 611, a mounting frame 612, an outer shaft 613, a butterfly-type threaded lock 614, a fire observation assembly 62, a lens mounting plate 621, a second through hole 6211, a mounting hole A6212, a mounting hole B6213, a mounting cavity 622, a mounting hole C6222, a third through hole 6221, a stud 6223, a quartz lens 623, a nut 624, a fire observation opening 63, a fourth through hole 631, a saddle-shaped fixing base 64, a screw 65, a main air valve 7, an air synchronizing valve 71, a key-type ignition switch 8, an ignition rod 9, a swing faucet 10, a pipeline A1101, a pipeline B1102, a pipeline C1103 and a pipeline D1104.

Detailed Description

As shown in fig. 1-4, the cauldron stove of the present invention comprises a stove body 1, wherein the shell of the stove body 1 is made of stainless steel, the stove body is supported by four stainless steel stove legs, a vertical rear baffle 3 is fixed on the rear side of the stove surface 2 of the stove body 1, a smoke cap for discharging smoke is arranged on the upper end of the rear baffle 3, a cooling water valve 51, a stove door 6, a main air valve 7 and a one-key ignition switch 8 are sequentially arranged on the front panel of the stove body 1, a stove chamber 11 is arranged in the stove body 1, a pot ring 111 is arranged at the open end of the stove chamber 11, the cauldron is placed on the pot ring 111, a stove head 12 is arranged at the bottom end of the stove chamber 11, a smoke outlet pipe 13 is circumferentially arranged on the inner wall of the stove chamber 11 between the stove head 12 and the pot ring 111, a plurality of smoke outlet holes 131 are arranged on the smoke outlet pipe 13, and the smoke and gas combusted in the 12 is discharged through the smoke outlet holes 131 and then gathered to the smoke outlet hole and, the design of the smoke outlet pipe 13 can gather energy, and the heat efficiency is high.

In one embodiment, in order to make the stove have multiple purposes, a plurality of pots, corresponding furnace ends, furnace doors, emergency ignition systems and flameout protection devices can be simultaneously installed on a stove surface, the attached drawing is a double-hole big pot stove, the left side and the right side of a stove body 1 can be symmetrically arranged into the double-hole big pot stove, two corresponding smoke caps and swinging faucets are arranged on two sides of a rear baffle, two sets of symmetrical furnace doors, a main gas valve and a one-key ignition switch are sequentially arranged on a front panel of the stove body 1, a cooling water valve is further arranged on the left side of the front panel, two hearths 11, a pot ring 111 and a furnace end 12 are symmetrically arranged in the stove body 1, smoke outlet pipes 13 are circumferentially arranged on the inner wall of the hearth 11 between the furnace end 12 and the pot ring 111, a plurality of smoke outlet holes 131 are arranged on the smoke outlet pipes 13, an ignition rod 9 for manual ignition, an emergency ignition system 14 and a control box 16 are arranged at the lower end of the front panel, the ignition bar valve 144 is connected to an inlet of a main gas duct 143 through which the gas is introduced into the main gas duct 143, and the main gas duct 143 is a main gas duct that traverses both left and right sides of the range body 1.

The solenoid valve 141 is installed to the rear of the panel before the kitchen body 1, the solenoid valve 141 is the off-state when not using, when the response needle is burnt red, transmission signal gives the solenoid valve 141, the solenoid valve 141 opens, the gas gets into, normal use, but the solenoid valve 141 is electronic component after all, work can be avoided damaging in high temperature environment, if do not have emergent ignition system 14, big pot and stove just can't be used, and can realize artifical ignition through emergent change-over valve 142, thereby can not delay the time of dish because of waiting for the maintenance personal to go to the door, influence normal dining.

The emergency ignition system includes a main gas pipe 143, an electromagnetic valve 141, an emergency switching valve 142, an ignition rod valve 144, and an ignition rod 9, the ignition rod valve 144 and the ignition rod 9 are installed at the main gas pipe 143, according to the reserved gas interface position on site, the left or the right is selected as a gas inlet, the other end of the main gas pipeline 143 is sealed, the gas enters the main gas pipeline 143 through the gas inlet of the main gas pipeline 143, the inlet end of the solenoid valve 141 is connected to the main air valve 7 via a line a1101, and finally connected to a burner, the outlet end of the electromagnetic valve 141 is connected to the burner through a pipeline B1102 to form a main gas path, the emergency switching valve 142 is connected in parallel to the electromagnetic valve 141 to form a standby gas path, the inlet end of the emergency switching valve 142 is connected to the main gas pipe 143 through a pipeline C1103, the air outlet end of the emergency switching valve 142 is connected with the furnace end through a pipeline D1104. The pipeline B1102 is provided with a main air valve 7 and an air synchronization valve 71, and the main air valve 7 and the air synchronization valve 71 are connected through a transmission device, so that air and air are linked to achieve the optimal proportion, the fuel gas and the air are accurately proportioned, and the fuel gas and the air are fully mixed.

When the ignition rod valve 144 and the emergency switching valve 142 are normally closed during normal operation, the electromagnetic valve 141 is normally open, and air is transmitted through the electromagnetic valve 141, when the electromagnetic valve 141 is damaged, the electromagnetic valve 141 is automatically closed in an attraction manner, the emergency switching valve 142 and the ignition rod valve 144 are manually opened, and the air is transmitted through the emergency switching valve 142 and is ignited through the oven door by using the ignition rod.

Still include flame out protection device in the kitchen body 1, otherwise the furnace end meets unexpected flame out, because the cauldron shelters from and cannot see the furnace end, the valve is the open mode again this moment, will the gas leak and cause the accident, flame out protection device is including the control box 16 that is equipped with the singlechip, control box 16 respectively with solenoid valve 141, the ignition needle and the response needle electric connection of furnace end 12, the response needle is used for giving solenoid valve 141 transmission signal, it is red to be burnt in the naked light when the response needle, transmission signal gives the control box, the control box orders about solenoid valve 141 and opens, the gas gets into main gas pipeline 143 smoothly, otherwise unexpected flame out, the response needle does not respond to flame temperature, solenoid valve 141 will close then, just can not have the gas to run out, thereby chef's safety has been protected. And a leakage protector 15 is also arranged in the stove body 1 on one side of the control box and is electrically connected with the control box. The utility model is also provided with a low noise fan 17 on one side of the furnace end 12 of the big cooking stove, which is connected to the furnace end 12 through an air pipe.

Still include cooling system 5 in the kitchen body 1, cooling system 5 includes the cooling water valve 51 that is equipped with on the front panel, and this cooling water valve 51 is connected with spray tube 53 through first connecting tube 52, and spray tube 53 is transversely fixed the leading flank of backplate 3 and the junction of kitchen face 2 set up a plurality of apopores 531 on the spray tube 53, and the side of apopore 531 place spray tube 53 exposes to the outside for open cooling water valve 51, accessible apopore play water, guaranteed the cooling of kitchen face 2, and can wash kitchen face 2.

The installation is waved tap 10 on the backplate 3 of the kitchen body 1 to through triangle valve control, the triangle valve is in normally open state at ordinary times, by the angle control switch who sways tap, damages when tap 10, closes this triangle valve, so that change, avoid extravagant. The faucet 10 and the triangular valve are connected by a second connecting pipe 55, and the cooling water valve 51 and the spout 53 are connected by a third connecting pipe 56.

Still include furnace 11 in the kitchen body 1, use aluminium silicate cotton as big pot and stove furnace's heat insulation material, the material is light, and the transport is convenient and heat insulation effect is good.

The utility model discloses a furnace end 12 installed on furnace, as shown in fig. 5-12, include the ring of igniting 121, the igniter 122, the divertor 123 and mix the cavity 124 in advance that set up from top to bottom in order, four parts pass through the fix with screw together, the closure is good, the firepower is violent, the burning flame is blue-cyan, the outer flame temperature can reach 1200 ℃; the ignition ring 121 and the igniter 122 are made of ductile iron alloy, the fluid director 123 and the premixing cavity 124 are made of gray iron, the fluid director 123 is not deformed, does not crack and is high-temperature resistant, the fluid director 123 is sleeved in the premixing cavity 124, the ignition device is fixed on the igniter outer ring 1221 and comprises an induction needle 125, an ignition needle 126 and a seedling fire rod 127, three through holes are correspondingly formed in the premixing cavity 424 and the igniter 122, the induction needle 125, the ignition needle 126 and the seedling fire rod 127 are respectively placed, and the fixing plate 12211 made of stainless steel is fixed on the igniter outer ring 1221.

The ignition ring 121 is of a solid circular structure, a shielding space 1211 which hides an ignition head of an ignition needle, a needle head of a sensing needle and a flame rod is arranged at a position corresponding to the bottom of the inner side surface of the inner circular ring, so that the hidden flame is not easy to extinguish, and the ignition needle 126 and the sensing needle 125 cannot be accidentally splashed by water at high temperature to cause 'quenching' damage. The top end of the ignition ring 121 corresponding to the sheltered space 1211 is thickened by 5-6mm, so that the whole body is more durable and is not easy to deform.

The igniter 122 is provided with three rows of ignition holes, the inner ring is phi 3.5mm multiplied by 20 holes and inclines outwards by 12 degrees; the middle ring has phi of 3.5mm multiplied by 30 holes and inclines outwards for 9 degrees; the outer ring is 4.0mm multiplied by 40 holes and is inclined inwards by 18 degrees.

The igniter 122 further comprises an igniter inner ring 1222 which is of a cylindrical structure, an overflow hole 1223 is formed in the center of the igniter inner ring 1222, an overflow cover is placed on the igniter inner ring 1222 and can be of a round table structure, the overflow cover can play a role in preventing sundries from blocking the overflow hole, and meanwhile flame distribution is more uniform.

The overflow pipe 128 is made of stainless steel, and has an upper end inserted into the overflow hole 1223 and a lower end through a drain hole 1291. Excess moisture can be discharged through the overflow tube 128, protecting the fully premixed burner.

The bottom of the premixing cavity 124 is connected with a main air inlet pipe 129, the premixing cavity 124 and the main air inlet pipe 129 are preferably integrally formed, the main air inlet pipe 129 is in a circular arc bent cylindrical shape, and gas and air enter from the circular arc bent cylindrical shape and are premixed for the first time; the upper surface of the main air inlet pipe 129, that is, the bottom inner cavity of the premixing chamber 124, forms a surrounding space, and the bottom of the surrounding space is evenly distributed with a plurality of air inlet holes 1241, preferably three air inlet holes, the gas and the air pass through the surrounding space and are premixed for the second time, the top openings of the air inlet holes are in a slope shape, and two kinds of gas enter the premixing chamber 124 to rotate anticlockwise, so that the premixing is more sufficient.

The fluid director 123 comprises a bell mouth upper end 1231 and a cylindrical tail end 1232 which are sleeved with the igniter 122 in a matching manner, a plurality of penetrating inclined ports 1233 are uniformly formed in the circumferential direction of the cylindrical tail end 1232, the inclined angle of each inclined port 1233 is consistent with the inclined angle of the three air inlet holes 1241 in the inner cavity of the premixing cavity, so that the mixed gas still keeps rotating in the premixing cavity 124 in the fluid director 123, the cylindrical tail end 1232 is sleeved in the premixing cavity 124, a 3mm gap 1230 is reserved between the lower end of the igniter 122 and the bell mouth 1231 at the upper end of the fluid director 123, arrows A and B in the figure 9 indicate the sequence that air and gas sequentially enter each part of the burner through the three air inlet holes 1241, and the structure enables the noise during burner combustion to be lower, so that the premixing is more sufficient, the combustion is more sufficient, and. The gas and air entering from the gas inlet pipe can be fully mixed in the premixing cavity 124 firstly, then the pressure is reduced through the gap of the fluid director 123, the mixed gas is fully mixed and then passes through the holes of the igniter 122, finally the gas is uniformly and fully combusted, the emission of carbon monoxide and nitrogen oxide is greatly reduced, the national standard is met, the requirement of energy conservation and environmental protection is met, and secondly the structure can control the gas inflow to further achieve the effect of energy conservation and environmental protection

The fire door 6 installed on the front panel of the oven body 1, as shown in fig. 13-18, belongs to a double-layer heat insulation structure, the fire door main body 61 is used as a first layer heat insulation layer, the fire observation assembly 62 is arranged on the basis of the fire door main body as a second layer heat insulation layer, not only the problem that the fire door is hot is solved, the problem of low heat efficiency can also be directly observed the combustion state of flame through the fire observation assembly 62, the fire observation assembly 62 is positioned on one side of the fire door main body 61 and is fixedly installed with the fire door main body 61, a first through hole 611 is arranged in the center of the fire door main body 61, and the fire observation port 63 is installed on the fire door main body 61 through.

The fire observation assembly 62 comprises a lens mounting plate 621, a mounting cavity 622 and a quartz lens 623, the lens mounting plate 621 and the mounting cavity 622 are fixedly mounted, a second through hole 6211 is formed in the lens mounting plate 621, a third through hole 6221 is formed in the relative position of the mounting cavity 622, the quartz lens 623 is mounted between the second through hole 6211 and the third through hole 6221, the mounting directions of the first through hole 611, the second through hole 6211 and the third through hole 6221 are consistent, a furnace door structure with double-layer heat insulation is formed after other components are fixedly mounted, a second ceramic fiber plate is filled in the inner surface of the mounting cavity 622 to ensure the heat insulation effect of the fire observation assembly 62, at least two studs 6223 are fixed on the inner surface of the mounting cavity 622, preferably two fixing studs in the diagonal direction of the mounting cavity, a mounting hole A6212 corresponding to the stud 6223 is formed in position is formed in the lens mounting plate 621, and the quartz lens 623 is fixed through the, The corresponding mounting hole is fixed by the nut 624 to the stud, thereby ensuring that the quartz lens 623 is fixedly clamped.

The fire observation port 63 is axially provided with a fourth through hole 631 for observing flame, and the fire observation port 63 is in threaded connection with the first through hole 611 on the oven door main body 61 through the fourth through hole 631. Set up a plurality of through-holes and guaranteed even when the furnace gate was closed, also can observe the flame state at any time, adopt quartz lens 63 to carry out the separation, at first quartz lens 63 is high temperature resistant to the burning risk that appears when having avoided only the through-hole to have brought when not having the separation flame to spill over danger and staff to observe flame.

The oven door main body 61 comprises a mounting frame 612, the mounting frame 612 is preferably in a cubic structure with four sides bent and a groove formed in the middle, and the groove is filled with a first ceramic fiber board to form a first heat insulation layer. The outer axle 613 on one side of the furnace door main body 61 is still including installing on big pot and stove, outer axle 613 leads to long hinge for the axle center, non-deformable, durable, more on the market for components of a whole that can function independently hinge, use for a long time can produce the clearance and cause to rock, only have one end to rock and just can make the furnace door slope, the another side includes butterfly thread lock 614, the hole cooperation that this hasp can correspond with big pot and stove is followed and is fixed the prevention mistake opening to the furnace door.

Two saddle-shaped fixing bases 64 are installed at two radial ends of a first through hole, close to one side of the fire observation assembly 62, of the furnace door main body 61, the fire observation assembly 62 is fixed on the saddle-shaped fixing bases 64, and the height of the saddle-shaped fixing bases 64 is higher than that of the fire observation opening 63 exposed out of the first through hole and close to one side of the fire observation assembly, so that the fire observation opening 63 and the fire observation assembly 62 can be separated due to the structure, the fire observation opening is not in contact with the fire observation assembly 62, heat transfer is avoided, and the heat insulation effect of the two sides is better. Mounting holes B6213 and mounting holes C6222 are correspondingly formed in the two sides of the lens mounting plate and the mounting cavity, and the fire observation assembly is integrally fixed on the saddle-shaped fixing base through screws 65 to form a complete double-layer heat insulation furnace door structure. When a large cooking stove with electronic ignition is used, if the electronic ignition fails, the furnace door can also be used as an emergency ignition port.

Claims (9)

1. A big pot stove is characterized by comprising a stove body, wherein a vertical rear baffle is fixed on the rear side of the stove surface of the stove body, a stove door is installed on a front panel of the stove body, a hearth is arranged in the stove body, a stove head is installed at the bottom end of the hearth, two sets of emergency ignition systems corresponding to fire holes are installed in the stove body, each emergency ignition system comprises a main gas pipeline, an electromagnetic valve, an emergency conversion valve and an ignition rod valve, each ignition rod valve is installed at the air inlet of the main gas pipeline, gas enters the main gas pipeline through the air inlet of the main gas pipeline and sequentially enters the stove head through the electromagnetic valves to form a main gas circuit, and the emergency conversion valves are connected with the electromagnetic valves in parallel to form a standby gas circuit; when the electromagnetic valve stops working, gas path switching is realized through the standby gas path by the gas.

2. The big cooking stove according to claim 1, wherein the stove head comprises an induction needle, an ignition needle and a seedling fire rod, and a fire ring, a fire engine, a fluid director and a premixing chamber which are sequentially arranged from top to bottom, the fluid director is sleeved in the premixing chamber, the fire engine comprises a fire engine outer ring, and the induction needle, the ignition needle and the seedling fire rod are all arranged on the fire engine outer ring and penetrate through the premixing chamber; the bottom of the inner side surface of the ignition ring is provided with a shielding space for hiding the ignition needle head, the induction needle head and the end part of the seedling fire rod.

3. The large cooking range according to claim 2, wherein the burner further comprises an overflow pipe for draining water, the overflow pipe penetrating the igniter, the deflector and the premixing chamber, a lower end of the overflow pipe being fixed to and penetrating a bottom of the premixing chamber.

4. The big cooking stove according to claim 2, wherein the inner cavity of the premixing chamber forms a bottom surrounding a space, and a plurality of air inlet holes are formed along the circumference, and the openings of the air inlet holes are in a slope shape, so that the gas and the air can rotate when entering the premixing chamber, and the premixing is more sufficient.

5. The big pot and stove according to claim 4, wherein the stove body comprises a control box, a single chip microcomputer is arranged in the control box, the control box is electrically connected with the electromagnetic valve, the induction needle and the ignition needle, when the stove head burns, the induction needle is burnt red, signals are transmitted to the control box, the control box drives the electromagnetic valve to be opened, gas enters the stove head, otherwise, the stove head is flamed out, no signals are transmitted to the control box by the induction needle, the electromagnetic valve is closed, and the gas cannot enter.

6. The large cooking stove according to claim 1, wherein the fire door comprises a fire door main body, a fire observation opening and a fire observation assembly fixedly arranged on one side of the fire door main body and fixed with the fire door main body, a first through hole is formed in the center of the fire door main body, and the fire observation opening is arranged on the fire door main body through the first through hole; the fire observation assembly comprises a lens mounting plate, a mounting cavity and a quartz lens, the lens mounting plate is fixedly mounted with the mounting cavity, a second through hole is formed in the lens mounting plate, a third through hole is formed in the relative position of the mounting cavity, and the quartz lens is mounted between the second through hole and the third through hole.

7. The big pot and stove according to claim 6, wherein the fire observation opening is provided with a fourth through hole for observing the seedling fire in the axial direction.

8. The large cooking range according to claim 6, wherein the door main body includes a mounting frame, an inner surface of which is filled with a first ceramic fiberboard.

9. The big cooking stove according to claim 6, wherein saddle-shaped fixing bases are installed at both radial ends of the first through hole of the oven door main body near one side of the fire observation assembly, and the lens installation plates of the fire observation assembly are fixed on the saddle-shaped fixing bases.