CN112097291A - Fire control system of commercial stove - Google Patents

Abstract

The invention belongs to the field of commercial stoves, and particularly relates to a fire control system of a commercial stove, which comprises a pressure stabilizing valve, a main fire electromagnetic valve, a fire type electromagnetic valve, an air inlet and a controller, wherein a main switch electromagnetic valve is arranged between the pressure stabilizing valve and the air inlet, one end of the pressure stabilizing valve is communicated with the fire type switch electromagnetic valve, and the other end of the pressure stabilizing valve is communicated with the main fire electromagnetic valve; the master switch electromagnetic valve, the kindling electromagnetic valve and the main kindling electromagnetic valve are respectively electrically connected with the controller, and the device is characterized in that: the main fire electromagnetic valve is an electromagnetic combination valve formed by combining an electromagnetic valve a, an electromagnetic valve b and an electromagnetic valve c in parallel, the electromagnetic valve a is communicated with the main fire air outlet valve a, the electromagnetic valve b is communicated with the main fire air outlet valve b, the electromagnetic valve c is communicated with the main fire air outlet valve c, and the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are communicated with the main fire air outlet pipe together. The invention can control the firepower of the commercial stove by a plurality of gears and has simple operation.

Description

Fire control system of commercial stove

Technical Field

The invention belongs to the field of commercial stoves, and particularly relates to a fire control system of a commercial stove.

Background

Commercial kitchen range is widely used in places such as hotel, restaurant, school, large-scale dining room, and the switch that current commercial kitchen range controlled the firepower size often is the infinitely variable control, needs cook's manual rotation to adjust the firepower size usually, but cook is in the culinary art in-process, holds the pot with one hand spoon and the other hand, and manual rotary switch is very inconvenient. Some commercial stoves in the prior art adopt the leg accuse switch to realize firepower and adjust, but current leg accuse regulating switch is the same and does not have the gear to adjust, because the leg control precision is lower, often not too big or undersize with the firepower accent, hardly reach the required suitable firepower of culinary art.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the shortcomings of the prior art are overcome, the fire control system of the commercial stove is provided, the fire of the commercial stove can be controlled by a plurality of gears, and the operation is simple.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fire control system of a commercial stove comprises a pressure stabilizing valve, a main fire electromagnetic valve, a fire type electromagnetic valve, an air inlet and a controller, wherein a main switch electromagnetic valve is arranged between the pressure stabilizing valve and the air inlet, one end of the pressure stabilizing valve is communicated with the fire type switch electromagnetic valve, and the other end of the pressure stabilizing valve is communicated with the main fire electromagnetic valve; the master switch electromagnetic valve, the kindling electromagnetic valve and the main kindling electromagnetic valve are respectively electrically connected with the controller, and the device is characterized in that: the main fire electromagnetic valve is an electromagnetic combination valve formed by combining an electromagnetic valve a, an electromagnetic valve b and an electromagnetic valve c in parallel, the electromagnetic valve a is communicated with the main fire air outlet valve a, the electromagnetic valve b is communicated with the main fire air outlet valve b, the electromagnetic valve c is communicated with the main fire air outlet valve c, and the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are communicated with the main fire air outlet pipe together.

Preferably, the gas flow limited by the main fire outlet valve a, the main fire outlet valve b and the main fire outlet valve c is consistent or sequentially increased.

Preferably, the fire-fighting water heater further comprises an air valve, the air valve is electrically connected with the controller, and the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are air limiting valves.

Preferably, the gas limiting valve comprises a valve body, a gas inlet, a gas outlet and an adjusting bolt, the gas inlet is perpendicular to the gas outlet, an ejector pin is arranged at the inner end of the adjusting bolt, and the size of gas flow of the gas outlet can be changed through movement of the ejector pin.

Preferably, the gas limiting valve fixing part is fixed at the front end of the main fire electromagnetic valve through bolts, three connecting columns are arranged at the front end of the gas limiting valve fixing part, through holes are formed in the connecting columns, and the main fire electromagnetic valve is communicated with the main fire air outlet valve through the connecting columns.

Preferably, the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are self-air-suction type gas nozzles.

Preferably, still include gas gear switch, gas gear switch is connected with the controller electricity, and its control flow is:

s1, igniting and starting a main switch electromagnetic valve;

s2, opening a fire type electromagnetic valve and detecting the flame condition;

s3, detecting a fuel gas gear switch;

s4, combining the number and the positions to be opened by utilizing the electromagnetic valves a, the electromagnetic valves b and the electromagnetic valves c according to the fuel gas gears;

s5, calculating the size of an air valve corresponding to a fuel gas gear;

and S6, opening the corresponding main fire electromagnetic valve and adjusting the air valve.

Preferably, gas range switch includes range switch sensor, and its detection flow is:

s1, reading an upshift/downshift switch sensor;

s2, when the gear is additionally provided with a sensor, the fuel gas gear is increased to the highest gear by long key action, and the fuel gas gear is increased by one gear by short key action;

and S3, when the gear reduction sensor acts, the gas gear is reduced to the lowest gear by the action of the long key, and the gas gear is reduced by one gear by the action of the short key.

Compared with the prior art, the invention has the beneficial effects that:

1. on the basis of a fire control device of a conventional commercial stove, the original main fire control valve is changed into a combination of three main fire electromagnetic valves which are connected in parallel, each electromagnetic valve is respectively communicated with the corresponding main fire air outlet valve, so that the on-off of the three electromagnetic valves are respectively controlled to realize the gas supply of a plurality of gears, thereby realizing the fire adjustment of the plurality of gears, being simple to operate, and being capable of more reasonably meeting the cooking requirements of cooks through gear-division control.

2. According to the invention, when the gas flow rates of the three main fire outlet valves are consistent, the control system can provide three fire gears, and when the gas flow rates of the three main fire outlet valves are sequentially increased, the control system can provide seven fire gears, so that different fire requirements can be met more variously by adjusting the flow rates of the three main fire outlet valves, the fire control mode of the traditional commercial stove is changed, and the control system has very positive practical significance.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic perspective view of a pilot fire solenoid valve according to the present invention;

FIG. 4 is a schematic perspective view of an air restriction valve according to an embodiment;

FIG. 5 is a schematic cross-sectional view of an air restriction valve according to an embodiment;

FIG. 6 is a control flow chart of the first embodiment;

fig. 7 is a flow chart of gas range switch detection in fig. 6.

Labeled as:

1. a pressure maintaining valve; 2. an air inlet; 3. a main fire solenoid valve; 31. an electromagnetic valve a; 32. a solenoid valve b; 33. a solenoid valve c; 4. a fire type electromagnetic valve; 5. a master switch electromagnetic valve; 6. a main fire air outlet valve; 61. a main fire air outlet valve a; 62. a main fire air outlet valve b; 63. a main fire air outlet valve c; 7. a main fire air outlet pipe; 8. a valve body; 9. a gas inlet; 10. a gas outlet; 11. a thimble bolt; 12, an O-shaped ring; 13. a gas-limiting valve fixing member; 14. connecting columns; 15. an adapter; 16. and (4) adapting the flange.

Detailed Description

The invention will be further described with reference to the following examples:

for the sake of facilitating the understanding of the present invention, the direction of the gas flow is considered as the front, and vice versa.

Example one

As shown in fig. 1 and 2, the embodiment provides a fire control system of a commercial stove, which includes a pressure stabilizing valve 1, a main fire electromagnetic valve 3, a fire type electromagnetic valve 4, an air inlet 2, an air valve (not shown in the figure) and a controller (not shown in the figure), a main switch electromagnetic valve 5 is arranged between the pressure stabilizing valve 1 and the air inlet 2, one end of the pressure stabilizing valve 1 is communicated with the fire type switch electromagnetic valve 4, the other end of the pressure stabilizing valve is communicated with the main fire electromagnetic valve 3, the main switch electromagnetic valve 5, the fire type electromagnetic valve 4, the main fire electromagnetic valve 3 and the air valve are respectively and electrically connected with the controller, and fuel gas enters the pressure stabilizing valve 1 from the air inlet 2 and enters a stove head through the fire type electromagnetic valve. The applicant has submitted the utility model patent application of patent number 201922075338.4 in 2019 in 11 months, has elaborated the structure and the process that the gas got into the burning of burner respectively through surge damping valve 1 and has got into kindling solenoid valve 4 and main fire solenoid valve 3, and this application is no longer repeated.

As shown in fig. 3, in this embodiment, the main fire electromagnetic valve 3 is an electromagnetic combination valve formed by combining an electromagnetic valve a31, an electromagnetic valve b32 and an electromagnetic valve c33 in parallel, the electromagnetic valve a31 is communicated with the main fire air outlet valve a61, the electromagnetic valve b32 is communicated with the main fire air outlet valve b62, the electromagnetic valve c33 is communicated with the main fire air outlet valve c63, and the main fire air outlet valve a61, the main fire air outlet valve b62 and the main fire air outlet valve c63 are communicated with the main fire air outlet pipe 7 together. In this embodiment, the main fire air outlet valve a61, the main fire air outlet valve b62 and the main fire air outlet valve c63 are all air limiting valves and the limited gas flow rates are consistent.

As shown in fig. 4 and 5, the gas limiting valve includes a valve body 8, a gas inlet 9, a gas outlet 10 and a thimble bolt 11, the gas inlet 9 is perpendicular to the gas outlet 10, the thimble bolt 11 is coaxial with the gas outlet 10, the thimble bolt 11 is in threaded connection with the valve body 8, and by adjusting the thimble bolt 11, the thimble moves to change the gas flow of the gas outlet 10. An O-shaped ring 12 is arranged between the thimble bolt 11 and the valve body 8, and plays a role in sealing and preventing air leakage.

Between main fire solenoid valve 3 and main fire air outlet valve 6, still include air limiting valve mounting 13, air limiting valve mounting 13 passes through the bolt fastening at the front end of main fire solenoid valve 3, and the front end of air limiting valve mounting 13 is provided with three spliced pole 14, set up the through-hole in the spliced pole 14, the three solenoid valve of main fire solenoid valve 3 communicates with corresponding main fire air outlet valve 6 through respective spliced pole 14 respectively.

In the embodiment, in order to enable the control system to meet the size requirement of a commercial stove during the assembly of the whole machine, an adapter 15 is further arranged between the main fire electromagnetic valve 3 and the pressure stabilizing valve 1, a gas inlet end of the adapter 15 is fixed with the pressure stabilizing valve 1 through an adapter flange 16, a gas outlet end of the adapter 15 is fixed with the main fire electromagnetic valve 3, the gas inlet and the gas outlet of the adapter 15 are vertically arranged, and sealing gaskets are arranged between the connecting surfaces of all the parts.

The invention also comprises a gas gear switch (not shown in the figure), the gas gear switch is electrically connected with the controller, as shown in fig. 6, the control flow is as follows:

s1, igniting and starting a main switch electromagnetic valve 5;

s2, opening a fire type electromagnetic valve 4 and detecting the flame condition;

s3, detecting a fuel gas gear switch;

s4, according to the gas gear, combining the number and the positions of the valves to be opened by using the electromagnetic valves a31, b32 and c 33: if the gas gear is the first gear, opening an electromagnetic valve a 31; if the gas gear is the second gear, opening the electromagnetic valve a31 and the electromagnetic valve b 32; if the gas gear is the third gear, the electromagnetic valve a31, the electromagnetic valve b32 and the electromagnetic valve c33 are fully opened.

S5, calculating the size of an air valve corresponding to a fuel gas gear;

s6, opening the corresponding main fire electromagnetic valve 3 and adjusting an air valve;

s7, detecting faults of the main fire electromagnetic valve;

s8, other detection and recording;

and S9, ending.

Wherein gas gear switch includes gear switch sensor, and gear switch sensor can adopt hall switch to respond to the gear change in this embodiment, as shown in fig. 7, and its detection flow is:

s1, reading an adding/subtracting Hall switch;

s2, when the gear is additionally provided with a sensor, the fuel gas gear is increased to the highest gear by long key action, and the fuel gas gear is increased by one gear by short key action;

s3, when the gear reduction sensor acts, the long key acts to reduce the fuel gas gear to the lowest gear, and the short key acts to reduce the fuel gas gear by one gear;

and S4, ending.

The firepower of adopting three gear in this embodiment adjusts the setting, and the cook can realize the conversion of different gears through the controller through operating handle, has calculated the rational ratio of gas and amount of wind simultaneously, guarantees that the gas burning is enough abundant, easy operation is nimble reliable again.

Example two

The specific structure and operation flow of this embodiment are the same as those of the first embodiment, except that in this embodiment, the gas flow rates defined by the main fire outlet valve a61, the main fire outlet valve b62 and the main fire outlet valve c63 are sequentially increased, that is, the main fire outlet valve a61 < the main fire outlet valve b62 < the main fire outlet valve c63, so that seven gear changes are generated.

In step S4 of the control flow, if the gas shift position is the first shift, the electromagnetic valve a31 is opened; if the fuel gas gear is the second gear, opening an electromagnetic valve b 32; if the fuel gas gear is the third gear, opening the electromagnetic valve c 33; if the gas gear is the fourth gear, opening the electromagnetic valve a31 and the electromagnetic valve b 32; if the fuel gas gear is the fifth gear, opening the electromagnetic valve a31 and the electromagnetic valve c 33; if the gas gear is six, opening the electromagnetic valve b32 and the electromagnetic valve c 33; if the gas gear is seven gears, the electromagnetic valve a31, the electromagnetic valve b32 and the electromagnetic valve c33 are fully opened.

The firepower of seven gears is adjusted and set in this embodiment, so that commercial stoves can be selected by heat in a more diversified manner, and different cooking requirements can be met.

EXAMPLE III

The other structures and operation flows of this embodiment are the same as those of the first embodiment, except that the air valve is omitted in this embodiment, and the main fire outlet valve is replaced with an air self-suction type gas nozzle, which is the prior art and will not be described again.

In the actual implementation process, step S6 in the control flow is only to open the corresponding solenoid valve according to the gas shift, and the self-air-suction type gas nozzle sucks gas and air around the nozzle into the main fire air outlet pipe, and the gas and the air are uniformly mixed and then reach the burner for combustion.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention may be made without departing from the technical spirit of the present invention.

Claims (9)

1. A fire control system of a commercial stove comprises a pressure stabilizing valve, a main fire electromagnetic valve, a fire type electromagnetic valve, an air inlet and a controller, wherein a main switch electromagnetic valve is arranged between the pressure stabilizing valve and the air inlet, one end of the pressure stabilizing valve is communicated with the fire type switch electromagnetic valve, and the other end of the pressure stabilizing valve is communicated with the main fire electromagnetic valve; the master switch electromagnetic valve, the kindling electromagnetic valve and the main kindling electromagnetic valve are respectively electrically connected with the controller, and the device is characterized in that: the main fire electromagnetic valve is an electromagnetic combination valve formed by combining an electromagnetic valve a, an electromagnetic valve b and an electromagnetic valve c in parallel, the electromagnetic valve a is communicated with the main fire air outlet valve a, the electromagnetic valve b is communicated with the main fire air outlet valve b, the electromagnetic valve c is communicated with the main fire air outlet valve c, and the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are communicated with the main fire air outlet pipe together.

2. A fire control system for a commercial stove as set forth in claim 1, wherein: and the gas flow limited by the main fire outlet valve a, the main fire outlet valve b and the main fire outlet valve c is consistent.

3. A fire control system for a commercial stove as set forth in claim 1, wherein: and the gas flow limited by the main fire outlet valve a, the main fire outlet valve b and the main fire outlet valve c is increased in sequence.

4. A fire control system for a commercial stove as claimed in claim 2 or 3, characterised in that: the fire-limiting air valve is characterized by further comprising an air valve, wherein the air valve is electrically connected with the controller, and the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are air-limiting valves.

5. A fire control system for a commercial stove as set forth in claim 4, wherein: the gas limiting valve comprises a valve body, a gas inlet, a gas outlet and an adjusting bolt, the gas inlet is perpendicular to the gas outlet, a thimble is arranged at the inner end of the adjusting bolt, and the thimble can change the gas flow of the gas outlet.

6. A fire control system for a commercial stove as set forth in claim 5, wherein: the gas limiting valve fixing piece is fixed at the front end of the main fire electromagnetic valve through bolts, three connecting columns are arranged at the front end of the gas limiting valve fixing piece, through holes are formed in the connecting columns, and the main fire electromagnetic valve is communicated with the main fire gas outlet valve through the connecting columns.

7. A fire control system for a commercial stove as claimed in claim 2 or 3, characterised in that: the main fire air outlet valve a, the main fire air outlet valve b and the main fire air outlet valve c are self-air-suction type gas nozzles.

8. A commercial stove fire control system based on claim 4, characterized by further comprising a gas shift switch, the gas shift switch is electrically connected with the controller, and the control flow is as follows:

s1, igniting and starting a main switch electromagnetic valve;

s2, opening a fire type electromagnetic valve and detecting the flame condition;

s3, detecting a fuel gas gear switch;

s4, combining the number and the positions to be opened by utilizing the electromagnetic valves a, the electromagnetic valves b and the electromagnetic valves c according to the fuel gas gears;

s5, calculating the size of an air valve corresponding to a fuel gas gear;

and S6, opening the corresponding main fire electromagnetic valve and adjusting the air valve.

9. The commercial oven fire control process according to claim 8, wherein the gas range switch includes a range switch sensor, and the detection process is as follows:

s1, reading an upshift/downshift switch sensor;

s2, when the gear is additionally provided with a sensor, the fuel gas gear is increased to the highest gear by long key action, and the fuel gas gear is increased by one gear by short key action;

and S3, when the gear reduction sensor acts, the gas gear is reduced to the lowest gear by the action of the long key, and the gas gear is reduced by one gear by the action of the short key.

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