CN113654093A - Catering centralized oil smoke discharge control method and system and storage medium - Google Patents
Catering centralized oil smoke discharge control method and system and storage medium Download PDFInfo
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- CN113654093A CN113654093A CN202110930443.0A CN202110930443A CN113654093A CN 113654093 A CN113654093 A CN 113654093A CN 202110930443 A CN202110930443 A CN 202110930443A CN 113654093 A CN113654093 A CN 113654093A
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- 239000000779 smoke Substances 0.000 title claims abstract description 343
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003517 fume Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000006233 lamp black Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 238000010411 cooking Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 235000021152 breakfast Nutrition 0.000 description 10
- 235000013305 food Nutrition 0.000 description 7
- 235000013361 beverage Nutrition 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to the technical field of catering smoke exhaust control, in particular to a catering centralized oil smoke exhaust control method, a catering centralized oil smoke exhaust control system and a storage medium, and the method comprises the following steps: detecting a smoke exhaust starting signal at intervals of preset time; setting the smoke exhaust power value of the smoke exhaust fan according to the preset grade of the smoke exhaust starting signal; and starting the smoke exhaust fan according to the smoke exhaust power value. This application has the effect that realizes energy-conserving discharge fume of market catering system of discharging fume.
Description
Technical Field
The application relates to the technical field of catering smoke exhaust control, in particular to a catering centralized oil smoke exhaust control method, a catering centralized oil smoke exhaust control system and a storage medium.
Background
Along with the improvement of people's living standard, the shopping mall in the city is also more and more, and the shopping mall has generally gathered shopping, food and beverage, recreational activities's function shops, in order to improve the personnel's that move about at the shopping mall comfort level, can be equipped with air exhaust and air change system in the market usually, increases the inside and external circulation of air in market, and to the food and beverage trade, because most of its exhaust gas is the oil smoke, then need concentrate and discharge fume.
The smoke exhaust system for catering in general shopping malls comprises smoke exhaust branch pipes connected to different catering shops and a smoke exhaust main pipe for collecting all the smoke exhaust branch pipes, wherein an exhaust fan is arranged in the smoke exhaust main pipe and used for extracting gas in the cigarette exhaust pipes, so that the gas in the cigarette exhaust pipes generates flow force to flow to the smoke exhaust main pipe.
The system of discharging fume of market food and beverage all generally adopts the integration control mode, and the system of discharging fume all-weather promptly is discharged fume with the biggest power of discharging fume, when leading to the demand of discharging fume lower, the wasting of resources condition is comparatively serious, awaits the solution urgently.
Disclosure of Invention
In order to realize energy conservation and smoke exhaust of a restaurant smoke exhaust system in a shopping mall, the application provides a restaurant centralized oil smoke exhaust control method, a restaurant centralized oil smoke exhaust control system and a storage medium.
In a first aspect, the application provides a method for controlling concentrated cooking fume exhaust in catering, which comprises the following steps:
a catering centralized oil smoke discharge control method comprises the following steps:
detecting a smoke exhaust starting signal at intervals of preset time;
setting the smoke exhaust power value of the smoke exhaust fan according to the preset grade of the smoke exhaust starting signal;
and starting the smoke exhaust fan according to the smoke exhaust power value.
The smoke exhaust power of the smoke exhaust machine is adjusted by detecting the smoke exhaust opening signal and comparing the preset grade of the smoke exhaust opening signal, the efficiency of the smoke exhaust machine is adjusted in a self-adaptive mode according to the situation, energy-saving smoke exhaust of a restaurant smoke exhaust system in a market is achieved, the smoke exhaust opening signal is detected at one time at preset intervals, the adjustment is more regular, airflow in the market is stable, acute airflow is not prone to flow fast, and the human body is enabled to feel sudden discomfort.
Preferably, the step of setting the value of the smoke exhaust power of the smoke exhaust fan according to the preset level to which the smoke exhaust starting signal belongs includes:
judging the smoke discharge quantity grade to which the smoke discharge starting signal belongs, wherein the smoke discharge quantity grade is a determined numerical value, and the numerical value is larger when the smoke discharge quantity grade is higher;
and calculating the sum of the smoke discharge quantity grades corresponding to the smoke discharge opening signals detected by one-time detection at preset time intervals as a matching value, wherein the preset grade is associated with the matching value and the corresponding smoke discharge power value.
Through the arrangement, the smoke exhaust power is accurately adjusted, so that the power of the smoke exhaust fan is adapted to the requirements of the current market.
Preferably, the smoke evacuation start signal includes a floor number;
the method further comprises the following steps: detecting a fire alarm signal, acquiring a smoke exhaust opening signal detected within preset time, generating a closing signal for controlling the closing of a fire damper of a smoke exhaust branch pipe according to a floor number in the smoke exhaust opening signal, and simultaneously generating a smoke exhaust closing signal.
The smoke exhaust pipelines are communicated with each other, when a fire disaster occurs, the flame easily flows to other floors along the smoke exhaust pipelines, so that serious economic loss is caused, and the fire prevention valve is arranged to reduce the condition that the flame flows to other floors along the smoke exhaust pipelines, so that the economic loss is reduced.
Preferably, the smoke evacuation start signal includes a shop number;
detecting a first smoke exhaust opening signal, recording the acquisition time of the detected first smoke exhaust opening signal as opening time and associating a corresponding shop number;
after the preset time interval, detecting a second smoke exhaust starting signal, and matching the shop number corresponding to the first smoke exhaust starting signal and the second smoke exhaust starting signal;
if a certain first smoke exhaust opening signal is matched with all second smoke exhaust opening signals and then has no matching result, setting the acquisition time of the second smoke exhaust opening signal as the closing time number of the shop number associated with the first smoke exhaust opening signal;
and if the shop number of a certain second smoke exhaust starting signal is not matched with all the first smoke exhaust starting signals, recording the acquisition time of the second smoke exhaust starting signal as the starting time and associating the corresponding shop number.
The power of the smoke exhaust fan is accurately controlled by recording the starting time and the stopping time of the smoke exhaust starting signal, so that the situation that the flow velocity of airflow in a shop is increased and people feel uncomfortable due to the fact that many shops which start air exhaust stop air exhaust because a large number of smoke exhaust starting signals stop in a short time and the power of the smoke exhaust fan is too late to decrease, and the shop which still starts air exhaust is suddenly increased due to the suction force of the smoke exhaust fan to the airflow in the shop is reduced.
Preferably, the smoke exhaust opening signal is a signal for opening an adjusting valve on a smoke exhaust branch pipe corresponding to the current shop; the method further comprises the steps of calculating the smoke exhaust cost of the shop corresponding to the shop number according to the opening time and closing time corresponding to the shop number in the preset calculation period and the smoke exhaust quantity grade of the smoke exhaust opening signal;
storing the times of all calculation periods corresponding to the same shop number and the smoke discharge cost corresponding to each calculation period;
and if the average smoke discharge cost of the same shop number is compared with the average smoke discharge cost in the current calculation period of the shop number, and the deviation value exceeds the preset range, closing the regulating valve associated with the current shop number and generating an abnormal reminding signal.
Through calculation of the smoke exhaust cost and the average smoke exhaust cost, whether abnormal smoke exhaust occurs in the shop or not can be monitored while the cost is calculated.
Preferably, the method further comprises the following steps: when a smoke exhaust starting signal is detected, detecting the current state of the smoke exhauster;
and if the current state of the smoke exhaust fan is the closing state, generating a smoke exhaust fan starting signal and generating a regulating valve delay starting signal.
Before the shops are opened to exhaust air, the smoke exhaust fan is started firstly, the smoke exhaust fan extracts smoke in the pipeline, and the situation that the smoke flows back into the shops to cause air in the shops to be turbid is reduced.
The second aspect, this application discloses a cooking fume discharging control system is concentrated in food and beverage adopts following technical scheme:
a catering centralized oil smoke discharge control system comprises smoke discharge branch pipes which correspond to shops one by one, a smoke discharge main pipe which is connected with all the smoke discharge branch pipes and a control chip; a regulating valve is arranged in the smoke exhaust branch pipe, and a smoke exhaust fan is arranged in the smoke exhaust main pipe; the control chip is internally stored with a computer program for realizing the method, and is connected with the regulating valve and the smoke exhauster.
The smoke exhaust branch pipes guide smoke in the shops to flow into the smoke exhaust main pipe under the suction force of the smoke exhaust machine, and the control chip coordinates the opening and closing of the regulating valve and the smoke exhaust machine.
Preferably, all the smoke exhaust branch pipes on the same floor are converged in the same converging pipeline, the converging pipeline is connected with the smoke exhaust main pipe, and a fire prevention valve is arranged in the converging pipeline.
The fire-proof valve is arranged in the gathering pipeline, and the fire-proof valve has the effect of preventing flames generated on a certain floor from spreading to other floors.
Preferably, an exhaust fan is arranged in the smoke exhaust branch pipe and connected with the control chip.
The exhaust fan assists the regulating valve to control the smoke exhaust effect of the shop.
In a third aspect, the present application discloses a computer-readable storage medium, which adopts the following technical solution:
a computer-readable storage medium storing a computer program that can be loaded by a processor and executed to perform a method according to any one of the preceding claims.
In summary, the present application has the following technical effects:
1. the smoke exhaust power of the smoke exhaust machine is adjusted by detecting the smoke exhaust starting signal and comparing the preset grade of the smoke exhaust starting signal, the efficiency of the smoke exhaust machine is adjusted in a self-adaptive manner according to the situation, energy-saving smoke exhaust of a catering smoke exhaust system in a shopping mall is realized, the smoke exhaust starting signal is detected once at preset intervals, the adjustment is more regular, the airflow in the shopping mall flows more stably, the acute airflow is not easy to flow fast, and the human body generates sudden discomfort;
2. the smoke exhaust pipelines are communicated with each other, when a fire disaster occurs, flame easily flows to other floors along the smoke exhaust pipelines, so that serious economic loss is caused, and the fire prevention valve is arranged to reduce the condition that the flame flows to other floors along the smoke exhaust pipelines, so that the economic loss is reduced;
3. the power of the smoke exhaust fan is accurately controlled by recording the starting time and the stopping time of the smoke exhaust starting signal, so that the situation that the flow velocity of airflow in a shop is increased and people feel uncomfortable due to the fact that many shops which start air exhaust stop air exhaust because a large number of smoke exhaust starting signals stop in a short time and the power of the smoke exhaust fan is too late to decrease, and the shop which still starts air exhaust is suddenly increased due to the suction force of the smoke exhaust fan to the airflow in the shop is reduced.
Drawings
Fig. 1 is a schematic block diagram of a restaurant centralized cooking fume exhaust control method according to an embodiment of the application.
Fig. 2 is a schematic block diagram of a centralized catering lampblack exhaust control method according to another embodiment of the application.
Fig. 3 is a schematic structural diagram of a restaurant centralized lampblack exhaust control system in an embodiment of the application.
Description of reference numerals:
1. a main smoke exhaust pipe; 2. a smoke exhaust branch pipe; 3. a control chip; 4. a smoke exhaust machine; 5. adjusting a valve; 6. an exhaust fan; 7. a fire damper; 8. a converging duct.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a method for controlling concentrated cooking fume exhaust in catering. Referring to fig. 1, the method for controlling oil smoke in a restaurant central system includes the following steps, and it should be noted that the combination of the sequence of the steps in this embodiment is only used for illustrating this embodiment, and is not used to limit the combination of other sequences of the steps in this application:
s1: and detecting a smoke exhaust starting signal at preset intervals.
S2: and setting the smoke exhaust power value of the smoke exhaust fan according to the preset grade of the smoke exhaust starting signal.
S3: and starting the smoke exhaust fan according to the smoke exhaust power value.
Specifically, in this embodiment, the shop at merchant place is equipped with the exhaust fan, and the market is equipped with the induced-draft fan, and the exhaust fan passes through pipeline and induced-draft fan intercommunication, makes the exhaust fan can extract the exhaust gas of exhaust fan, and the market is equipped with control chip, and control chip connects exhaust fan, induced-draft fan respectively to control the start and close of exhaust fan, induced-draft fan, control chip can be for PLC controller, MCU controller etc. in this embodiment, use the PLC controller as the example. The frequency converter is arranged on the smoke exhaust machine and connected with the control chip, the control chip sends a signal to the frequency converter, and the frequency converter adjusts the power of the smoke exhaust machine.
The times for the merchants to open and close the exhaust fans are different, so that the number of the merchants to open the exhaust fans needs to be monitored to adjust the power of the smoke exhaust fan, but if the power of the smoke exhaust fan is unstable and the smoke exhaust effect is poor due to real-time monitoring and real-time adjustment, the smoke exhaust opening signal is easily detected at intervals of preset time, wherein the preset time can be 0.5h, 1h, 2h and the like and is set according to actual conditions; in this embodiment, the preset time is 1h as an example. Every interval of 1h, the control chip detects a smoke exhaust starting signal, and the smoke exhaust starting signal is triggered by a user starting an exhaust fan.
The smoke exhaust starting signal carries a shop identification number, when the smoke exhaust starting signal is detected, the total number of the smoke exhaust starting signal is calculated, the preset grades are different numbers of smoke exhaust starting signals, for example, 1 smoke exhaust starting signal is grade 1, 2 smoke exhaust starting signals are grade 2, 3 smoke exhaust starting signals are grade 3, and so on, the different preset grades correspond to different smoke exhaust power values, the smoke exhaust power values are calculated in advance according to the number of the exhaust fans which can be started, and the number of the exhaust fans which are started is related through the preset grades.
Through the time that the interval is preset, according to the quantity of opening of the exhaust fan that detects, control the power of induced-draft fan, automatically regulated smoke extractor power when satisfying the demand of discharging fume, reduces the wasting of resources.
Referring to fig. 2, optionally, in another embodiment, step S2 may be:
s21: and judging the smoke discharge quantity grade of the smoke discharge opening signal.
S22: and calculating the sum of the smoke discharge quantity grades corresponding to the smoke discharge opening signals detected by one-time detection at preset time intervals as a matching value, and associating the matching value with the corresponding smoke discharge power value by the preset grade.
In this embodiment, the smoke discharge level is divided by the smoke discharge amount of the same store, the smoke discharge level is a determined numerical value, and the higher the smoke discharge level is, the larger the numerical value is. In this embodiment, a plurality of exhaust fans are pre-installed in the same store, and the exhaust fans of the same store are associated with the same store number. When a plurality of fans are started in one shop, the control chip detects smoke discharge starting signals with the same shop numbers, the smoke discharge quantity grade corresponding to the shop number is judged according to the quantity of the smoke discharge starting signals of the same shop number, for example, if the shop with the shop number of 1 generates 3 smoke discharge starting signals, the smoke discharge grade corresponding to the smoke discharge starting signal of the shop with the shop number of 1 is 3; in another embodiment, the smoke discharge opening signal may be pre-associated with a corresponding smoke discharge level according to the daily smoke discharge amount of different shops, for example, the western food smoke discharge requirement is less, so the western food smoke discharge level is set to 1, and if a shop with a shop number of 2 is western food, the smoke discharge level corresponding to the smoke discharge opening signal associated with the shop is 1; the smoke exhaust requirement of the Chinese style dish is large, and the smoke exhaust quantity grade corresponding to the smoke exhaust starting signal of the Chinese style dish shop with the shop number of 3 is set to be 3.
When smoke discharge starting signals are detected at preset intervals, smoke discharge quantity grades corresponding to all the smoke discharge starting signals are calculated, for example, the smoke discharge quantity grade with the shop number of 1 is 2, the smoke discharge quantity grade with the shop number of 2 is 4 and the like, the matching value =1+2+ … +, 1 is the smoke discharge quantity grade of the shop with the shop number of 1, 2 is the smoke discharge quantity grade of the shop with the shop number of 2, is the smoke discharge quantity grade of the shop with the shop number of i, and i is any Arabic number and is an integer; it should be noted that if the exhaust fan is not turned on in a certain shop, the smoke discharge level is 0.
In this embodiment, the preset levels are formed by arabic numbers in sequence, for example, level 1, level 2 … …, level n is any arabic number and is an integer, and the preset levels correspond to matching values. For example, a matching value of 1 corresponds to a preset level of 1, and the preset level of 1 corresponds to a pre-calculated smoke exhaust power value, so that the power value of the smoke exhaust fan can be directly regulated and controlled.
Optionally, in another embodiment, training tables are preset, and one shop number corresponds to one training table. Setting three time periods which are respectively a breakfast time period, a lunch time period and a dinner time period in a training table, presetting a conventional smoke exhaust amount in each time period according to the condition of the shop in advance, calculating the smoke exhaust amount of the shop in different time periods, wherein the smoke exhaust amount refers to the detected amount of oil smoke exhausted by the shop, for example, if the breakfast time period is 4:00-10:00, calculating the smoke exhaust amount from 4:00 to 10:00 as the breakfast smoke exhaust amount of the shop on the same day, i as the shop number, presetting the conventional smoke exhaust amount of the breakfast of the shop as B, calculating the difference value between the breakfast smoke exhaust amount and the B, and recording the absolute value of the difference value in a first preset range at the position corresponding to the time period in the training table; counting the breakfast time periods in the training tables of the shops, removing the maximum value and simultaneously removing the minimum value, taking all average values as the average, obtaining the breakfast smoke discharge amount of all the shops in the shopping mall in the breakfast time periods, taking the breakfast smoke discharge amount with the minimum value as a basic value S, calculating the ratio X of all the breakfast smoke discharge amounts relative to the basic value, taking the ratio X as an example, taking the minimum smoke discharge grade as A when calculating the matching value, and calculating the matching value according to the formula:
match value = X1+ X2+ … + X ∗;
and if the matching value is not calculated to be an integer, rounding is adopted.
The matching value corresponds to a preset grade one by one, for example, a matching value of 1 corresponds to a preset grade of 1; a matching value of 2 corresponds to a preset level of 2, and so on.
Optionally, in another embodiment, the smoke evacuation start signal includes a floor number, and the method further includes the steps of:
s4: detecting a fire alarm signal, acquiring a smoke exhaust opening signal detected within preset time, generating a closing signal for controlling the closing of a fire damper of a smoke exhaust branch pipe according to a floor number in the smoke exhaust opening signal, and simultaneously generating a smoke exhaust closing signal.
Wherein, the pipeline arranged at the shop is a smoke exhaust branch pipe, all the smoke exhaust branch pipes are gathered on the smoke exhaust main pipe, the exhaust fan is arranged on the smoke exhaust branch pipe, and the smoke exhaust fan is arranged on the smoke exhaust main pipe; the smoke exhaust branch pipe is provided with a fire damper connected with the control chip.
The fire alarm signal may be alarm information generated when a smoke alarm installed in a commercial site detects an abnormal smoke concentration, or alarm information generated when a person manually sounds an alarm, and the like.
In the present embodiment, the fire alarm signal is detected, that is, all the fire valves of the floor where the shops with the exhaust fans are located are closed, so as to prevent the fire from spreading.
Optionally, in another embodiment, the fire alarm signal carries a corresponding floor number, and when the fire alarm signal is detected, if the exhaust fan is opened at the corresponding floor, the fire damper at the floor is closed.
Optionally, in another embodiment, the smoke evacuation start signal includes a shop number:
(1) detecting a first smoke exhaust opening signal, recording the acquisition time of the detected first smoke exhaust opening signal as opening time and associating a corresponding shop number;
(2) after the preset time interval, detecting a second smoke exhaust starting signal, and matching the shop number corresponding to the first smoke exhaust starting signal and the second smoke exhaust starting signal;
(3) if a certain first smoke exhaust opening signal is matched with all second smoke exhaust opening signals and then has no matching result, setting the acquisition time of the second smoke exhaust opening signal as the closing time number of the shop number associated with the first smoke exhaust opening signal;
(4) and if the shop number of a certain second smoke exhaust starting signal is not matched with all the first smoke exhaust starting signals, recording the acquisition time of the second smoke exhaust starting signal as the starting time and associating the corresponding shop number.
It should be noted that the first smoke exhaust opening signal and the second smoke exhaust opening signal are both one of the smoke exhaust opening signals, only the detected time is different, and the detection time interval between the first smoke exhaust opening signal and the second smoke exhaust opening signal is preset time.
Through the judgment, the opening and closing time of the exhaust fan corresponding to the shop is convenient to obtain.
Specifically, the on and off times of the exhaust fans of the shops are both limited to the time of detecting the smoke exhaust opening signal, for example, 9: 00 is the detection time of the first smoke exhaust opening signal, the preset time is 1h, the detection time of the second smoke exhaust opening signal is 10:00, the shop A opens the exhaust fan at 9 points, closes the exhaust fan at 9:30, the control chip receives the exhaust fan closing request signal, controls the exhaust fan to be closed in a delayed mode to 10:00, and closes the exhaust fan before the second smoke exhaust opening signal is detected.
The exhaust fan is periodically started and stopped, so that the exhaust speed of the shop in the market and the exhaust speed of the shop with the exhaust fan started are in a normal state, and the airflow flowing in the shop cannot be suddenly changed.
Optionally, in another embodiment, the smoke evacuation start signal is a signal that the regulating valve on the smoke evacuation branch pipe corresponding to the current shop is opened, a regulating valve is arranged in the smoke evacuation branch pipe, and the exhaust fan is opened to synchronously trigger the regulating valve to open, further comprising:
s5: and calculating the smoke discharge cost of the shop corresponding to the shop number according to the opening time and closing time corresponding to the shop number in the preset calculation period and the smoke discharge quantity grade of the smoke discharge opening signal.
S6: and storing the times of all calculation periods corresponding to the same shop number and the smoke discharge cost corresponding to each calculation period.
S7: and if the average smoke discharge cost of the same shop number is compared with the average smoke discharge cost in the current calculation period of the shop number, and the deviation value exceeds the preset range, closing the regulating valve associated with the current shop number and generating an abnormal reminding signal.
Specifically, the smoke discharge cost = smoke discharge time and smoke discharge volume grade and smoke discharge unit price, the smoke discharge time = closing time after the time-opening time obtained before and adjacent to the closing time, and in the opening time and the closing time recorded by the same shop number, the smoke discharge cost is calculated once every time one group of opening time and closing time of the smoke discharge time equation is established.
The preset calculation period may be 1h, 2h, 3h, etc., and 2h is taken as an example in this embodiment. The smoke exhaust cost is the sum of the calculation costs in a preset calculation period, for example, the same dealer is laid in the preset calculation period, the exhaust fan is turned on and off twice, the sum of the two calculation costs is the smoke exhaust cost, the average smoke exhaust cost = (total cost of all on-off time of the exhaust fan)/(total on time) is the preset calculation period, and the total on time is consistent with the unit of the preset calculation period and is h.
If the absolute value of the difference value between the smoke discharge cost of the current calculation period and the average smoke discharge cost exceeds the preset period, it indicates that the current shop smoke discharge is abnormal, and in this embodiment, the abnormal reminding signal is sent by an alarm lamp which is preset in front of the shop and connected with the control chip, specifically, a light flashing signal.
Optionally, in an embodiment, when the smoke evacuation start signal is detected, the current state of the smoke exhauster is detected; and if the current state of the smoke exhaust fan is the closing state, generating a smoke exhaust fan starting signal and generating a regulating valve delay starting signal.
Before the exhaust fan is started, the smoke exhaust fan is started firstly, so that the air is prevented from flowing backwards into the shops, and the power of the smoke exhaust fan can be preset by starting the smoke exhaust fan firstly, so that the air flow in the shops can flow stably.
Referring to fig. 3, the embodiment further discloses a restaurant centralized oil smoke exhaust control system, which includes smoke exhaust branches corresponding to shops one by one, 2, a smoke exhaust main pipe 1 connected with all the smoke exhaust branch pipes 2, and a control chip 3.
Control chip 3 can be PLC controller, MCU controller, and the branch pipe 2 of discharging fume that each shop that is located the same floor set up assembles in same pipeline 8 that assembles, assembles pipeline 8 and inserts all branch pipes 2 of discharging fume of the same floor into main pipe 1 of discharging fume, is equipped with fire prevention valve 7 in assembling pipeline 8, and fire prevention valve 7 is connected with control chip 3.
A regulating valve 5 is arranged in the smoke exhaust branch pipe 2, and a smoke exhaust machine 4 is arranged in the smoke exhaust main pipe 1; the control chip 3 is internally stored with a computer program for realizing the method, the control chip 3 is connected with the regulating valve 5 and the smoke exhauster 4, the control chip 3 controls the regulating valve 5 to be opened and closed so as to realize the smoke discharge of shops, and the control chip 3 controls the power of the smoke exhauster 4.
Optionally, in an embodiment, an exhaust fan 6 is disposed in the smoke exhaust branch pipe 2, the exhaust fan 6 extracts the airflow in the shop, so that the airflow flows from the shop to the smoke exhaust branch pipe 2, and the exhaust fan 4 extracts the airflow in the smoke exhaust branch pipe 2, so that the airflow in the smoke exhaust branch pipe 2 flows to the smoke exhaust main pipe 1.
The present embodiment also discloses a computer readable storage medium storing a computer program that can be loaded by a processor and execute the method as described above.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A method for controlling concentrated cooking fume exhaust in catering is characterized by comprising the following steps:
detecting a smoke exhaust starting signal at intervals of preset time;
setting the smoke exhaust power value of the smoke exhaust fan according to the preset grade of the smoke exhaust starting signal;
and starting the smoke exhaust fan according to the smoke exhaust power value.
2. The catering centralized oil smoke discharge control method according to claim 1, wherein the step of setting the smoke discharge power value of the smoke discharge machine according to the preset level to which the smoke discharge start signal belongs comprises the following steps:
judging the smoke discharge quantity grade to which the smoke discharge starting signal belongs, wherein the smoke discharge quantity grade is a determined numerical value, and the numerical value is larger when the smoke discharge quantity grade is higher;
and calculating the sum of the smoke discharge quantity grades corresponding to the smoke discharge opening signals detected by one-time detection at preset time intervals as a matching value, wherein the preset grade is associated with the matching value and the corresponding smoke discharge power value.
3. The catering centralized lampblack exhaust control method according to claim 1, wherein the lampblack exhaust starting signal comprises a floor number;
the method further comprises the following steps: detecting a fire alarm signal, acquiring a smoke exhaust opening signal detected within preset time, generating a closing signal for controlling the closing of a fire damper of a smoke exhaust branch pipe according to a floor number in the smoke exhaust opening signal, and simultaneously generating a smoke exhaust closing signal.
4. The catering centralized lampblack exhaust control method according to claim 2, wherein the lampblack exhaust starting signal comprises a shop number;
detecting a first smoke exhaust opening signal, recording the acquisition time of the detected first smoke exhaust opening signal as opening time and associating a corresponding shop number;
after the preset time interval, detecting a second smoke exhaust starting signal, and matching the shop number corresponding to the first smoke exhaust starting signal and the second smoke exhaust starting signal;
if a certain first smoke exhaust opening signal is matched with all second smoke exhaust opening signals and then has no matching result, setting the acquisition time of the second smoke exhaust opening signal as the closing time number of the shop number associated with the first smoke exhaust opening signal;
and if the shop number of a certain second smoke exhaust starting signal is not matched with all the first smoke exhaust starting signals, recording the acquisition time of the second smoke exhaust starting signal as the starting time and associating the corresponding shop number.
5. The catering centralized oil smoke discharge control method according to claim 4, wherein the smoke discharge opening signal is a signal for opening an adjusting valve on a smoke discharge branch pipe corresponding to a current shop; the method further comprises the steps of calculating the smoke exhaust cost of the shop corresponding to the shop number according to the opening time and closing time corresponding to the shop number in the preset calculation period and the smoke exhaust quantity grade of the smoke exhaust opening signal;
storing the times of all calculation periods corresponding to the same shop number and the smoke discharge cost corresponding to each calculation period;
and if the average smoke discharge cost of the same shop number is compared with the average smoke discharge cost in the current calculation period of the shop number, and the deviation value exceeds the preset range, closing the regulating valve associated with the current shop number and generating an abnormal reminding signal.
6. The catering centralized oil smoke discharge control method according to claim 1, further comprising: when a smoke exhaust starting signal is detected, detecting the current state of the smoke exhauster;
and if the current state of the smoke exhaust fan is the closing state, generating a smoke exhaust fan starting signal and generating a regulating valve delay starting signal.
7. A catering centralized oil smoke discharge control system is characterized by comprising smoke discharge branch pipes (2) which correspond to shops one by one, a smoke discharge main pipe (1) which is connected with all the smoke discharge branch pipes (2), and a control chip (3); an adjusting valve (5) is arranged in the smoke exhaust branch pipe (2), and a smoke exhaust machine (4) is arranged in the smoke exhaust main pipe (1); the control chip (3) is internally provided with a computer program for realizing the method according to any one of claims 1 to 6, and the control chip (3) is connected with the regulating valve (5) and the smoke exhaust fan (4).
8. The catering centralized oil smoke discharge control system according to claim 7, characterized in that: all be located same floor branch pipe (2) of discharging fume are assembled in same pipeline (8) that assembles, just it connects and discharges fume main pipe (1) to assemble pipeline (8), it is equipped with fire prevention valve (7) in pipeline (8) to assemble.
9. The catering centralized oil smoke discharge control system according to claim 7, characterized in that: be equipped with exhaust fan (6) in branch pipe (2) of discharging fume, exhaust fan (6) are connected with control chip (3).
10. A computer-readable storage medium, in which a computer program is stored which can be loaded by a processor and which executes the method according to any of claims 1-6.
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