JPH0625609B2 - Combustion control device for boiled noodle machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combustion control device for a boiling noodle machine using a pulse combustor as a heat source.

[Conventional technology]

When a pulse combustor is used as the heat source of the boiled noodle machine, the thermal efficiency is extremely superior to other heat sources, so it is particularly advantageous in terms of fuel cost and the like when it is applied to commercial use. However, although it has been difficult to adjust the combustion load as compared with the continuous combustion system, the present invention has focused on that the combustion amount can be easily controlled by changing the ratio of the combustion time and the stop time. It is a thing.

[Problems to be solved by the invention]

The present invention provides a combustion control device for a boiling noodle machine, which is capable of performing accurate and stable control with a simple structure in the case of timer control.

[Means for solving problems]

According to the present invention, a pulse combustor is used as a heat source, and the combustion amount of the pulse combustor is variably set and controlled by a combustion timer capable of adjusting a ratio of a combustion time and a stop time within a preset repetition timer time. In the combustion control device of the boiled noodle machine provided, the technical means provided so as to measure the start of the repetition timer time from the flame detection was adopted to solve the above problems.

[Work]

Since the present invention is configured as described above, the combustion timer can change the ratio of the combustion time and the stop time within the set time of the repetition timer that measures the start from the flame detection to ensure the predetermined substantial combustion time. . Therefore,
A desired amount of combustion is obtained, and the hot water temperature in the boiled noodle machine is stably maintained at the set temperature.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the drawing, T ₁ is a preset time of a repeat timer, which is preset to, for example, 55 seconds (constant), and its start a is timed from flame detection by the frame rod 1 or the like. T ₂ is a set time of the combustion timer, and is set to be freely variable within a range of 10 seconds to 50 seconds (variable). The combustion timer is for manually rotating the combustion adjusting dial 2 to variably set it to a desired time. In addition to the continuous position A, the combustion adjusting dial 2 has graduated positions of 1, 2, 3, 4, and 5. B is provided and the combustion amount is adjusted in a wide range by changing the combustion time according to the respective positions A and B, that is, the ratio of the combustion timer set time T ₂ to the stop time (T ₁ −T ₂ ) + pre-purge time. Moreover, it is possible to adjust the scale position B at the intermediate position C so that stepless control can be performed. Then, the scale position B is used as a temporary indicator.

Table 1 shows an example of the combustion time and the stop time at the scale position B.

By adding the pre-purge time and the like (5 seconds) to the set time (55 seconds) of the repetition timer to match it with the combustion cycle (60 seconds) and measuring the start of the repetition timer from flame detection. Even if there is a change in the prepurge time or the time required for flame detection, the timer time is not affected, and the repetition timer and the combustion timer start at substantially the same time. In FIG. 3, L ₁ is a power lamp, which is turned on by turning on the power switch S ₁ . L ₂ is a combustion lamp, and a power switch S
Lights when pulse combustion starts normally after a certain time (about 80 seconds) has passed after turning ON. L ₃ is an abnormal lamp, which lights up when there is a combustion failure or other abnormality.

FIG. 2 is a schematic diagram showing an example of a boiled noodle machine using a pulse combustor as a heat source. The pulse combustor is a combustion chamber 3,
A combustion function unit including a tail pipe 4, an exhaust muffler 5, an exhaust pipe 6 and the like in series, and an air supply function unit including an air supply pipe 7, an air supply fan 8, an air supply muffler 9, an air chamber 10 and the like. The main solenoid valve 11, the main solenoid valve 12, a gas supply pipe 14 having a gas governor 13, a gas chamber 15, a gas supply unit including a gas nozzle 16 and the like are provided between the combustion chamber 3 and the gas chamber 15. The mixing chamber 17 is supplied with a proper amount of fuel gas, which is sufficiently pressure-equalized in the gas chamber 15, through the gas nozzle 16 and, at the same time, the air chamber 10
The appropriate amount of air that has been sufficiently equalized by the
Are mixed with each other, and when the mixture is sent to the combustion chamber 3, it is explosively combusted in the combustion chamber 3, and the combustion exhaust gas passes from the tail pipe 4 and the exhaust muffler 5 to the exhaust pipe 6 through the exhaust pipe 6. Although it is pulsatingly continuous while repeating the cycle of air supply, explosive combustion, expansion, and exhaust that is released to the outside, only by the forced air supply from the air supply fan 8 and the spark from the electrode 18 at the beginning of operation. Compulsory ignition is required, but after a while, combustion is continued under self-aeration and self-ignition. Reference numeral 19 denotes a hot water tank, which has a drainage pipe 20 connected to the bottom surface thereof, a faucet 22 connected to a water supply pipe 21 from a water pipe or the like facing the upper opening, and the pulse combustion in the hot water tank 19. The combustion chamber 3 and the tail pile 4 in the combustion function part of the vessel are housed and installed as a heat source, and a lever frame (not shown) for inserting and supporting the lever is freely attached to and detached from the upper opening.

Further, reference numeral 1 is a frame rod, which is provided so as to face the detection portion in the combustion chamber 3, and which is provided with an electrical equipment box 2 through an igniter 23.
4 is connected. 25 power plug _{S 2} is the air pressure switch, 26 water supply main valve, 27 is a faucet.

In the boiled noodle machine having the above-described configuration, when the power switch S ₁ is turned on for use, the air supply fan 8 rotates to start forced air supply to the mixing chamber 17, and when the forced air supply is confirmed by the wind pressure switch S _2. The original solenoid valve 11 and the main solenoid valve 12 of the gas supply pipe 14 are opened to supply the fuel gas to the mixing chamber 17, the fuel gas and the air are mixed in the mixing chamber 17, and the mixture is sent to the combustion chamber 3. Then, the igniter 23 operates to fly the spark from the electrode 18 and ignite the air-fuel mixture, and when this explodes and burns, the flame rod 1 detects the combustion flame and after a certain period of time (about 5 seconds), the igniter 23 and the power supply are fed. The air fan 8 is stopped, and thereafter, combustion is continued under self-supply and self-ignition according to the principle of pulse combustion described above, and while the combustion exhaust gas flows through the combustion chamber 3 and the tail pipe 4, Exhaust heat Most vacuum exhaust muffler 5 was Atsushi Nobori to water and is absorbed heat exchanger in the reservoir is being muted discharged from the exhaust pipe 6 to the vessel out.

On the other hand, when the combustion adjusting dial 2 is turned to set the combustion time of the combustion timer, the combustion time and the stop time of the pulse combustor are set to a fixed ratio within the set time of the repetition timer. For example, the combustion cycle set in the range of Table 1 is repeated to obtain a desired set combustion amount.

The combustion control operation will be described in more detail based on the timer sequence of FIG. 1. When the pulse combustor is normally ignited and burned by a series of ignition operations, the flame rod 1 detects the combustion flame and the combustion lamp L At the same time when ₂ is turned on, the set times T ₁ and T _{2 of the} repetition timer and the combustion timer start a. When the combustion timer reaches the set time T ₂ and the timer is up b, both solenoid valves 11 and 12 are turned off.
At the same time, the fuel gas supply is stopped and the combustion lamp L
₂ and the wind pressure switch S ₂ are turned off to shift the pulse combustor to the stop time. When the repeat timer reaches the set time T ₁ and time is up c, the air supply fan 8 is turned on, the air pressure switch S ₂ is also turned on, and the pre-purge is performed for a fixed time (approximately 5 seconds). Also, both solenoid valves 11 and 12 are turned on to try ignition, and the next combustion, stop operation, or the like is performed.

〔The invention's effect〕

The present invention controls the combustion amount of the pulse combustor by converting the ratio of the combustion time and the stop time within a preset fixed timer time of the repetition timer that measures the start from the flame detection by the combustion timer. Therefore, even if there is a change in the pre-purge time or the time required for flame detection, the timer does not start until the flame is detected, so that a predetermined substantial combustion time is reliably ensured. Especially when a short combustion time is set, the error of the combustion time ratio becomes large and the desired hot water temperature cannot be obtained unless the flame detection is started in this way, so that the predetermined combustion time is ensured. This has the effect of enabling stable control with high accuracy. In the pulse combustor, since the volume (volume) of the supply / exhaust system is large, the pre-purge time (time until the wind pressure switch is turned on) varies, which is particularly effective.

Therefore, the set hot water temperature in the boiled noodle machine can be stably maintained, and the combustion timer can be manually adjusted, so that the finish of the noodles that sensitively influences the hot water temperature can be well controlled, which is a useful invention in actual use. Is.

[Brief description of drawings]

FIG. 1 is a timer sequence showing an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a boiling noodle machine, FIG. 3 is a front view of an operating portion, and FIG. 4 is a front view of a combustion adjusting dial. . T ₁ ...... Repetition timer setting time, T ₂ ...... Combustion timer setting time, 1 ...... Frame rod, 2 ...... Combustion adjusting dial.

Claims (1)

[Claims] 1. A pulse combustor is used as a heat source, and a combustion amount of the pulse combustor is variably set and controlled by a combustion timer capable of adjusting a ratio of a combustion time and a stop time within a preset repetition timer time. The combustion control device for a boiled noodle machine, wherein the combustion control device for a boiled noodle machine is provided so as to time the start of the repetition timer time from flame detection.