JP2023056895A - Fryer - Google Patents

Abstract

To easily check heating performance.SOLUTION: A fryer 1 includes an oil tank 3, a cooking temperature sensor 13 for detecting the temperature of cooking oil, a pulse combustor 4 for heating cooking oil, a burner controller 70 for controlling the pulse combustor 4, an operation panel 61, and a display part. The burner controller 70 equipped with a timer 71 starts counting by the timer 71 when cooking is started, controls the pulse combustor 4 so that the temperature detected by the cooking temperature sensor 13 remains at a predetermined target temperature, and completes cooking when a predetermined cooking time passes. The burner controller 70 can select a measurement mode for the temperature of cooking oil by an input operation on the operation panel 61, and when the measurement mode is selected and a predetermined operation is executed on the operation panel 61, causes the display part to display the count time by the timer 71 according to the operation.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present disclosure relates to a fryer for commercial use that heats cooking oil in an oil tank, puts food into the oil tank, and heats and cooks the food.

As disclosed in Patent Document 1, the fryer heats cooking oil contained in an oil tank to a predetermined cooking temperature by a heating means such as a burner or a pulse combustor, thereby cooking potatoes or the like put into the oil tank. Cook things.

JP 2020-22576 A

The above-mentioned conventional fryer for business use is installed, for example, in the kitchen of a store and is used to cook a large amount of food to be cooked. Performance may not be demonstrated. For this reason, in stores, work is carried out to periodically check whether the heating performance has deteriorated. In this work, a separately prepared thermometer and stopwatch are used to measure the time required for the temperature of the cooking oil to rise to a predetermined temperature, and the heating performance is confirmed based on the rise time. It has become.
However, a separate measuring instrument is required, and it is difficult to find the right timing to insert the thermometer into the cooking oil. was

Accordingly, an object of the present disclosure is to provide a fryer in which the heating performance can be easily checked.

To achieve the above object, the present disclosure provides an oil tank capable of containing cooking oil;
temperature detection means for detecting the temperature of the cooking oil;
a heating means provided in the oil tank for heating the cooking oil;
a control means for controlling the heating means;
an operation means for inputting an instruction to the control means;
including display means and notification means controlled by the control means,
The control means includes a timer, and when cooking is started, the timer starts counting, and controls the heating means so that the temperature detected by the temperature detection means changes at a predetermined target temperature. A fryer that completes cooking by the lapse of cooking time of
The control means can select a cooking oil temperature measurement mode by an input operation of the operation means. It is characterized by displaying the count time by the display means.
In another aspect of the present disclosure, in the above configuration, the control means causes the detected temperature to reach a predetermined first measured temperature or is lower than the first measured temperature by a predetermined temperature after the measurement mode is selected. When the temperature reaches the first pre-temperature, the notification means performs measurement notification or measurement advance notification.
In another aspect of the present disclosure, in the above configuration, the control means causes the detected temperature to reach a predetermined second measured temperature higher than the first measured temperature after the measurement notification or the measurement advance notification. When the temperature is reached or reaches a second temperature which is lower than the second measured temperature by a predetermined temperature, the notification means performs a measurement end notification or a measurement end advance notification.
According to another aspect of the present disclosure, in the above configuration, when the measurement mode is selected, the control means displays the detected temperature on the display means.

According to the present disclosure, an existing timer and display means can be used to count and display the measurement time in the measurement mode for confirming the heating performance. Therefore, a stopwatch or the like becomes unnecessary, and the heating performance of the heating means can be easily confirmed.
According to another aspect of the present disclosure, in addition to the above effects, when the detected temperature reaches the first measurement temperature or the lower first near temperature, the control means performs measurement notification or measurement advance notification. A measurer can easily grasp the proper timing of inserting the thermometer into the cooking oil, and it is possible to prevent a situation in which the timing of inserting the thermometer is too early or too late, and accurate measurement cannot be performed from the first measured temperature.
According to another aspect of the present disclosure, in addition to the effects described above, when the detected temperature reaches the second measured temperature or a lower second near temperature after the measurement notification or the measurement advance notification, the control means Since the measurement end notification or the measurement end notice is given, it becomes easier for the measurer to grasp the appropriate timing to remove the thermometer from the cooking oil. It is possible to prevent a situation in which the measurement cannot be completed.
According to another aspect of the present disclosure, in addition to the above effects, the control means displays the detected temperature on the display means.

1 is a perspective view of a fryer; FIG. 1 is a schematic diagram of a fryer; FIG. FIG. 4 is an explanatory diagram of an operation panel; FIG. 10 is an explanatory diagram showing display on the operation panel in the measurement mode;

Embodiments of the present disclosure will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an example of a fryer, and FIG. 2 is a schematic diagram of the fryer. This fryer 1 has a pair of left and right oil tanks 3, 3 in the upper part of the body 2. - 特許庁A pair of left and right pulse combustors 4, 4 as heating means are provided at the bottom of each oil tank 3, respectively. Each pulse combustor 4 has a combustion chamber 5 provided on the front inner wall of the oil tank 3 and a tail pipe 6 connected to the combustion chamber 5 and routed in a meandering manner within the oil tank 3 .
Since the configurations of the oil tanks 3 and their combustion systems and exhaust systems are the same on the left and right sides, the oil tank 3 on the left side of FIG. 1 will be mainly described below.

The oil tank 3 has a first cooking section 7 and a second cooking section 8 . The first cooking section 7 is formed above the pulse combustor 4 and has a rectangular tubular shape with an opening area that does not change in the vertical direction. The second cooking portion 8 is positioned above the first cooking portion 7 and is formed in an inverse tapered shape that widens in the front, rear, left, and right directions as it goes upward from the upper end of the first cooking portion 7 . The portion up to the upper end of the second cooking portion 8 serves as a storage portion for the cooking oil. A basket 9 containing food to be cooked such as potatoes can be put into the oil tank 3. - 特許庁Above the pulse combustors 4,4 there is a net 10 for receiving a basket 9. FIG.
A first oil surface temperature sensor 11 is provided near the upper end surface of the first cooking section 7 . A second oil surface temperature sensor 12 is provided near the upper end surface of the second cooking section 8 . A cooking temperature sensor 13 is provided near the tail pipe 6 of the pulse combustor 4 in the oil tank 3 . An electric heater 33 is provided on the lower outer peripheral surface of the oil tank 3 .

Behind the oil tank 3 and above the vessel body 2, an oil increase tank 14 for containing cooking oil is provided. An oil increase pipe 15 connected to the second cooking section 8 at the rear surface of the oil tank 3 is connected to the lower surface of the oil increase tank 14 . The oil increase pipe 15 is provided with an oil increase valve 16 that is manually opened and closed. An oil-increasing temperature sensor 17 is provided in the oil-increasing tank 14 to detect the temperature of the stored cooking oil.
An overflow portion 18 is provided on the front surface of the oil increase tank 14 . The overflow portion 18 is formed by a pipe connected to the front surface of the oil increase tank 14, a flow path formed in the front surface of the oil increase tank 14 in the vertical direction, and the like. The upper end of the overflow part 18 is connected to an opening formed in the upper front part of the oil tank 14 and hangs down, and the lower end of the overflow part 18 is connected to the rear inner surface of the oil tank 3 via the outlet 19. Therefore, when the cooking oil in the oil increase tank 14 exceeds the lower edge of the opening, the overflowing cooking oil flows down into the oil tank 3 from the outlet 19 along the rear inner surface of the oil tank 3 .

An air chamber 20 is provided outside the front side of the oil tank 3 . A mixing chamber (not shown) communicating with the combustion chamber 5 is provided in the air chamber 20 . A gas conduit 21 equipped with a gas solenoid valve 22 is connected to the mixing chamber to supply fuel gas. An air supply pipe 23 is connected to the mixing chamber. The air supply pipe 23 is connected to a fan 24 provided at the bottom of the body 2 to supply combustion air.
The tail pipes 6 , 6 of the pulse combustors 4 , 4 are connected to exhaust pipes 25 , 25 drawn out from the air chamber 20 after being arranged in a meandering manner under the oil tank 3 . The exhaust pipes 25 , 25 have mufflers 26 , 26 arranged at the rear part of the body 2 . The mufflers 26, 26 are disposed facing upward while being in contact with the rear surface of the fuel tank 14 so that combustion exhaust can be discharged.
The increased oil tank 14 and the mufflers 26 , 26 are covered with an exhaust pipe cover 27 provided on the body 2 . Protective covers 28 are provided on the front surfaces of the left and right exhaust pipe covers 27 , 27 . Basket hangers 29 , 29 for suspending and supporting the baskets 9 , 9 are fixed to the protective cover 28 . The outlet 19 of the overflow portion 18 is provided below the basket hanger 29 .

A filtering tank 30 having a filter at the bottom is provided at the bottom of the vessel 2 . An oil drain pipe 31 is connected to the bottom of the oil tank 3 so that the cooking oil in the oil tank 3 can be discharged to the filtering tank 30 through the oil drain pipe 31 . The oil drain pipe 31 is provided with an oil drain valve 32 that is manually opened.
A filtering pump 35 is provided at the bottom of the vessel 2 . The suction side of filtering pump 35 is connected to the bottom of filtering tank 30 via suction pipe 36 . A discharge side of the filtering pump 35 branches into a first oil supply pipe 37 and a second oil supply pipe 38 . The first oil supply pipe 37 is connected to the oil increase pipe 15 on the upstream side of the oil increase valve 16 . The first oil supply pipe 37 is provided with a first oil supply valve 39 that is manually opened and closed.
The second oil supply pipe 38 is connected to the lower portion of the oil tank 3 . The second oil supply pipe 38 is provided with a second oil supply valve 40 that is manually opened and closed.

Below the oil tank 3, an additional oil tank 45 using a 18-liter can is provided. The supplementary oil tank 45 is installed on a stand 46 provided on the vessel body 2 . The stand 46 is provided with a heat retaining heater 47 for heating the supplementary oil tank 45 and a tank temperature sensor 48 for detecting the temperature of the supplementary oil tank 45 .
A lower end of a supplementary oil pipe 49 is inserted into the supplementary oil tank 45 . The upper end of the additional oil pipe 49 is connected to the oil tank 3 above the second cooking section 8 . A supplementary oil pump 50 and a supplementary oil electromagnetic valve 51 are provided in the supplementary oil pipe 49 from the upstream side.

A fly controller 60 is provided on the front upper portion of the body 2 . The fly controller 60 has an operation panel 61 . As shown in FIG. 3, the operation panel 61 is provided with a power switch 62, a plurality of cooking buttons 63, 63, .
In the frying controller 60, the selectable cooking modes are a first cooking mode in which the amount of food to be cooked at one time is a predetermined first rated amount, and a second rated amount larger than the first rated amount. Two types are defined, namely, the second cooking mode. Therefore, the operation panel 61 is provided with a mode selection button 65 for selecting the cooking mode and rated quantity display lamps 66A and 66B for displaying the rated quantity. The rated quantity display lamp 66A corresponds to the first rated quantity, and the rated quantity display lamp 66B corresponds to the second rated quantity.
A burner controller 70 is provided at the bottom of the vessel 2 . The burner controller 70 performs ON/OFF control of the pulse combustor 4 according to the cooking mode instructed by the fry controller 60 to cook food such as potatoes. Detection signals from the first and second oil surface temperature sensors 11 and 12, the cooking temperature sensor 13, the oil increase temperature sensor 17, the tank temperature sensor 48, and the like are input to the burner controller 70. FIG. Based on these detection signals and instructions from the operation panel 61, the burner controller 70 operates the pulse combustor 4, the gas solenoid valve 22, the fan 24, the electric heater 33, the filtering pump 35, the heat retaining heater 47, the additional oil pump 50, It controls the addition oil electromagnetic valve 51 and the like.

The burner controller 70 has a timer 71 and a storage section 72 in addition to a control section such as a CPU. The storage unit 72 stores, for each cooking mode, a control line set so that the temperature detected by the cooking temperature sensor 13 changes at a predetermined target temperature and the cooking is completed in a predetermined time. The burner controller 70 controls the pulse combustor 4 based on the control line corresponding to the cooking mode selected by the fry controller 60 when cooking is started. When the set cooking time elapses, control of the pulse burner 4 is terminated, and the operation panel 61 of the fry controller 60 notifies completion of cooking.

In the fryer 1 configured as described above, when the cook turns on the power switch 62 on the operation panel 61, the burner controller 70 rotates the fan 24 for a predetermined period of time to supply air and then mix gas in the combustion chamber 5. is intermittently burned to turn the pulse combustor 4 ON/OFF. That is, the mixed gas is ignited in the combustion chamber 5 to be explosively burned in the combustion chamber 5, and the combustion exhaust gas is forcibly discharged to the tail pipe 6 due to the pressure increase in the combustion chamber 5 accompanying the combustion. Then, fuel gas and combustion air are sucked into the combustion chamber 5, which has a negative pressure due to the discharge of the combustion exhaust. By repeating this ON/OFF operation, the cooking oil stored in the oil tank 3 is heated.

In the fryer 1, the temperature of the cooking oil is measured during heating by the pulse burner 4, and the measured temperature rises from a predetermined first measurement temperature (eg, 121°C) to a predetermined second measurement temperature (eg, 140°C). The time required for heating (rise time) is counted, and the state of the heating performance of the pulse combustor 4 is grasped based on the rise time.
A measurement mode can be selected by operating a predetermined button on the operation panel 61 . In this measurement mode, the time counted by the timer 71 and advance notice of the start and end of measurement are displayed on the display unit 64, and the measurer can grasp the rise time using the measurement mode. The procedure will be described below.

First, when the measurement mode is selected by operating a predetermined button, the current detected temperature of the cooking temperature sensor 13 is displayed on the display section 64 .
The burner controller 70 gives a measurement advance notification to the display unit 64 when the detected temperature reaches a first temperature lower than the first measured temperature by a predetermined temperature (for example, 5° C.). This is done by displaying on the display unit 64 or emitting an alarm sound or synthesized voice. The operator is then ready to insert the thermometer into the cooking oil.
After confirming that the detected temperature has reached the first measurement temperature by the display on the display unit 64 , the measurer inserts the thermometer into the cooking oil and presses a predetermined button on the operation panel 61 . Then, the burner controller 70 starts counting by the timer 71 and displays the counting time on the display section 64 . For example, as shown in FIG. 4, the detected temperature is displayed on the display section 64 on the left side, and the count time is displayed on the display section 64 on the right side.

The burner controller 70 notifies the display unit 64 of the end of the measurement when the detected temperature reaches a second temperature lower than the second measured temperature by a predetermined temperature (for example, 5° C.). This is done by displaying on the display unit 64 or emitting an alarm sound or synthesized voice.
When the detected temperature reaches the second measurement temperature, the person taking the measurement pulls out the thermometer from the cooking oil and presses a predetermined button on the operation panel 61 . Then, the burner controller 70 ends the counting by the timer 71 and displays the counting time at the end on the display section 64 .
Therefore, even without using a stopwatch or the like, the person taking the measurement can grasp the displayed count time as the rise time from the first measured temperature to the second measured temperature. Here, if the rising time deviates from the predetermined time range, or if the number of deviations reaches a predetermined number of times in succession or in total, maintenance can be requested to the manufacturer or service provider.

After grasping the rising time, when the operation panel 61 is operated to end the measurement mode, the burner controller 70 continues to monitor the detected temperature obtained from the cooking temperature sensor 13 . After confirming that the temperature of the cooking oil has reached a predetermined cooking temperature (for example, 160° C.), the frying controller 60 notifies by outputting a display indicating that cooking is OK on the display section 64 of the operation panel 61 or the like.
When this notification is given, the cook throws a basket containing a rated amount of food to be cooked corresponding to the cooking mode into the oil tank 3 . Then, when the cook presses the cooking start button (here, the leftmost cooking button 63), the burner controller 70 controls the pulse burner 4 based on the control line to heat and cook the food. Then, when the cooking time expires, the fry controller 60 sounds an alarm to notify the end of cooking. Therefore, the cook pulls up the basket 9 from the oil tank 3. When cooking is continued, the same control is repeated by putting in the food to be cooked and pressing the cooking start button.

On the other hand, the burner controller 70 monitors the detected temperature obtained from the tank temperature sensor 48 during operation in each cooking mode, and turns on the heat retaining heater 47 so that the additional oil tank 45 maintains a predetermined heat retaining temperature. /OFF control.
When the first and second oil surface temperature sensors 11 and 12 detect a decrease in the required amount of cooking oil in one of the cooking modes, or when a predetermined number of times of cooking is reached, the additional oil pump 50 is driven. to open the oil solenoid valve 51. Then, the cooking oil liquefied in the additional oil tank 45 is directly supplied to the oil tank 3 through the additional oil pipe 49 .

As described above, the fryer 1 of the above embodiment is provided with an oil tank 3 capable of containing cooking oil, a cooking temperature sensor 13 (temperature detecting means) for detecting the temperature of the cooking oil, and the oil tank 3 to heat the cooking oil. pulse combustor 4 (heating means), burner controller 70 (control means) for controlling pulse combustor 4, operation panel 61 (operation means) for inputting instructions to burner controller 70, burner controller 70 for controlling and a display unit 64 (display means and notification means). The burner controller 70 has a timer 71. When cooking starts, the timer 71 starts counting and controls the pulse combustor 4 so that the temperature detected by the cooking temperature sensor 13 changes at a predetermined target temperature. After a predetermined cooking time has elapsed, the cooking is completed. The burner controller 70 is capable of selecting a mode for measuring the temperature of the cooking oil by an input operation on the operation panel 61. When the measurement mode is selected and a predetermined operation is performed on the operation panel 61, the timer starts from the operation. The count time by 71 is displayed on the display unit 64 .
According to this configuration, the existing timer 71 and display unit 64 can be used to count and display the measurement time in the measurement mode for confirming the heating performance. Therefore, a stopwatch or the like becomes unnecessary, and the heating performance of the pulse combustor 4 can be easily confirmed.

In particular, after the measurement mode is selected, the burner controller 70 performs the measurement advance notification by the display unit 64 or the like when the temperature detected by the cooking temperature sensor 13 reaches the first near temperature which is lower than the first measured temperature. Therefore, it becomes easier for the measurer to grasp the appropriate timing to insert the thermometer into the cooking oil, and it is possible to prevent a situation in which the timing of inserting the thermometer is too early or too late, which prevents accurate measurement from the first measured temperature. can.
When the detected temperature reaches a second pre-measurement temperature lower than the second measurement temperature, which is higher than the first measurement temperature after the previous measurement notification, the burner controller 70 performs the measurement end notification via the display unit 64 or the like. Therefore, it becomes easier for the measurer to grasp the appropriate timing to remove the thermometer from the cooking oil, and it is possible to prevent a situation in which the measurement at the second measurement temperature cannot be completed due to the timing of removing the thermometer being too early or too late. .
When the measurement mode is selected, the burner controller 70 displays the detected temperature on the display unit 64, which serves as a guideline for when the operator inserts and removes the thermometer, thereby preventing measurement errors.

Modified examples will be described below.
The first measurement temperature and the second measurement temperature for checking the heating performance can be changed as appropriate. Each front temperature is not limited to a temperature lower than each measurement temperature by 5°C, and can be changed as appropriate.
In the above embodiment, the measurement advance notice and the measurement end notice are performed when each measured temperature reaches the preceding temperature. you can go
Either one of the measurement advance notice and the measurement end notice may be provided, or both of them may be omitted. Similarly, in the case of the measurement notification and the measurement end notification, only one of them may be notified, or both of them may be omitted.
The display of the detected temperature on the display unit in the measurement mode may be omitted, or it may be displayed as necessary by operating the operation panel.
In the above embodiment, the heating performance of the pulse combustor is checked during the heating control at startup, but the heating performance is not limited to this, and may be checked during the heating control in the cooking mode.

The fryer is not limited to having separate frying controller and burner controller, and may have one controller that functions as both a frying controller and a burner controller.
The heating means may be formed only by a pulse combustor or may be formed only by an electric heater. Also, the heating means may be formed only by a gas burner provided outside the oil tank. Furthermore, the heating means may be formed by combinations other than the combination of a pulse combustor and an electric heater.
In the above embodiment, a pair of left and right oil tanks are provided, but the number of oil tanks may be one, or conversely, three or more.
The present disclosure is applicable even to a pressure fryer that closes the opening of the oil tank with a lid.

DESCRIPTION OF SYMBOLS 1... Fryer, 2... Body, 3... Oil tank, 4... Pulse combustor, 5... Combustion chamber, 6... Tail pipe, 7... 1st cooking part, 8... 2nd cooking part , 9... Basket 11... First oil surface temperature sensor 12... Second oil surface temperature sensor 13... Cooking temperature sensor 14... Oil increase tank 15... Oil increase pipe 16... Oil increase valve 18 Overflow portion 22 Gas solenoid valve 30 Filtering tank 35 Filtering pump 37 First oil supply pipe 38 Second oil supply pipe 39 Second 1 refueling valve 40 second refueling valve 60 fry controller 61 operation panel 62 power switch 63 cooking button 64 display unit 65 mode selection button 66A , 66B... Rated amount display lamp, 70... Burner controller, 71... Timer, 72... Storage part.

Claims (4)

an oil tank capable of containing cooking oil;
temperature detection means for detecting the temperature of the cooking oil;
a heating means provided in the oil tank for heating the cooking oil;
a control means for controlling the heating means;
an operation means for inputting an instruction to the control means;
including display means and notification means controlled by the control means,
The control means includes a timer, and when cooking is started, the timer starts counting, and controls the heating means so that the temperature detected by the temperature detection means changes at a predetermined target temperature. A fryer that completes cooking by the lapse of cooking time of
The control means can select a cooking oil temperature measurement mode by an input operation of the operation means. A flyer characterized by displaying the count time by the display means. After the measurement mode is selected, when the detected temperature reaches a predetermined first measurement temperature or reaches a first near temperature lower than the first measurement temperature by a predetermined temperature, the control means causes the notification means to 2. The fryer according to claim 1, wherein measurement notification or measurement advance notification is performed. After performing the measurement notification or the measurement advance notification, the control means causes the detected temperature to reach a predetermined second measured temperature higher than the first measured temperature or lower than the second measured temperature by a predetermined temperature. 3. The fryer according to claim 2, wherein when the temperature reaches the second pre-temperature, the notification means notifies the end of the measurement or notifies the end of the measurement. 4. The fryer according to claim 1, wherein when the measurement mode is selected, the control means displays the detected temperature on the display means.

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