CN209750781U - Temperature-controllable instant heating type tea machine heating system - Google Patents
Temperature-controllable instant heating type tea machine heating system Download PDFInfo
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- CN209750781U CN209750781U CN201920118087.0U CN201920118087U CN209750781U CN 209750781 U CN209750781 U CN 209750781U CN 201920118087 U CN201920118087 U CN 201920118087U CN 209750781 U CN209750781 U CN 209750781U
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Abstract
The utility model belongs to the technical field of the tea heating equipment and specifically relates to controllable instant heating type tea machine heating system of temperature. The heating system comprises a diaphragm pump, a flowmeter, a heating module, a temperature sensor, a first MOS tube driving module, a pulse acquisition module, a temperature acquisition module, an MCU control module, a second MOS tube driving module and a solid-state relay, wherein the first MOS tube driving module, the pulse acquisition module, the temperature acquisition module and the MCU control module are respectively electrically connected with the MCU control module, and the diaphragm pump is electrically connected with the first MOS tube driving module. The utility model discloses accessible electric control system's MCU calculates the operating duration of heating module according to the heating module entrance temperature of gathering, the pumping water yield of diaphragm pump and the velocity of flow of water. Through the full power work of control heating module, combine the PWM dynamic adjustment control water velocity, the time of drawing water of diaphragm pump through the flowmeter simultaneously, reach instant heating, controllable, the controllable purpose of water yield of temperature.
Description
Technical Field
The utility model belongs to the technical field of the tea heating equipment and specifically relates to controllable instant heating type tea machine heating system of temperature.
Background
the current technological development is changing day by day, and with the wide popularization of smart phones, the internet of things technology and the internet technology are widely applied. With the development of science and technology, unmanned automatic vending machines are also rapidly developed. Various vending machines are available on the market, and the types of vending machines are various. Vending machines for drinks like mineral water, beverages and the like are already very widespread and found in more and more places. The tea brewing vending machine has some special requirements, and water with different temperatures is needed to brew tea according to different tea, and meanwhile, the water quantity is also required. At the same time, the guest cannot wait, and the waiting is completed in a short time, even a few seconds. Since the customer's consumption on the vending machine is itself convenient and fast. In conclusion, the existing vending machine can not realize heating control with instant heating, controllable temperature and controllable water quantity.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of description in the background art, the utility model provides a controllable instant heating type tea machine heating system of temperature, accessible electric control system's MCU calculates the operating duration of heating module according to the heating module entrance temperature of collection, the pumped water yield of diaphragm pump and the velocity of flow of water. Through the full power work of control heating module, combine the PWM dynamic adjustment control water velocity, the time of drawing water of diaphragm pump through the flowmeter simultaneously, reach instant heating, controllable, the controllable purpose of water yield of temperature.
The utility model provides a technical scheme that its technical problem adopted is:
The utility model provides a controllable instant heating type tea machine heating system of temperature, includes diaphragm pump, flowmeter, the module that generates heat, temperature sensor, MOS pipe drive module one, pulse collection module, temperature collection module, MCU control module, MOS pipe drive module two and solid state relay, MOS pipe drive module one, pulse collection module, temperature collection module, MCU control module are connected with MCU control module electricity respectively, and the diaphragm pump is connected with MOS pipe drive module one electricity, and pulse collection module is connected with the flowmeter electricity, and temperature sensor is connected with the temperature collection module electricity, and MOS pipe drive module two is connected with solid state relay electricity, and solid state relay is connected with the module electricity that generates heat.
Specifically, the MCU control module is an STM32F103 microcontroller.
Specifically, the temperature sensor is an NTC-100K thermistor.
specifically, the module of generating heat is flexible nanometer tombarthite electric heat module of generating heat.
The utility model has the advantages that: the utility model provides a controllable instant heating type tea machine heating system of temperature, accessible electric control system's MCU calculates the operating duration of heating module according to the heating module entrance temperature of gathering, the pumping water yield of diaphragm pump and the velocity of flow of water. Through the full power work of control heating module, combine the PWM dynamic adjustment control water velocity, the time of drawing water of diaphragm pump through the flowmeter simultaneously, reach instant heating, controllable, the controllable purpose of water yield of temperature.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a block diagram of the present invention;
FIG. 2 is a flow chart of the steps of the present invention;
In the figure, 1, a diaphragm pump, 2, a flowmeter, 3, a heating module, 4, a temperature sensor, 5, a first MOS tube driving module, 6, a pulse acquisition module, 7, a temperature acquisition module, 8, an MCU control module, 9, a second MOS tube driving module, 10 and a solid-state relay are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Fig. 1 is a block diagram of the present invention, and fig. 2 is a flowchart of the implementation steps of the present invention.
The utility model provides a controllable instant heating type tea machine heating system of temperature, includes diaphragm pump 1, flowmeter 2, the module 3 that generates heat, temperature sensor 4, MOS pipe drive module 5, pulse collection module 6, temperature collection module 7, MCU control module 8, two 9 of MOS pipe drive module and solid state relay 10, MOS pipe drive module 5, pulse collection module 6, temperature collection module 7, MCU control module 8 are connected with MCU control module 8 electricity respectively, and diaphragm pump 1 is connected with MOS pipe drive module 5 electricity, and pulse collection module 6 is connected with flowmeter 2 electricity, and temperature sensor 4 is connected with temperature collection module 7 electricity, and MOS pipe drive module two 9 is connected with solid state relay 10 electricity, and solid state relay 10 is connected with the module 3 electricity that generates heat. The MCU control module 8 is an STM32F103 microcontroller. The temperature sensor 4 is an NTC-100K thermistor. The heating module 3 is a flexible nanometer rare earth electric heating module.
As shown in the attached figure 1, the diaphragm pump 1 has the function of pumping water at the water inlet to the flowmeter 2 and then entering the flexible nanometer rare earth electric heating module 3, and the diaphragm pump 1 mainly has the function of driving the water to flow and controlling the flowing speed. The flowmeter 2 is designed to generate pulse signals when water flows through the flowmeter 2, the number of the pulse signals represents the amount of water passing through the flowmeter 2, and the frequency of the pulses represents the flow rate of the water, so that the volume of heated water and the flow rate of the water can be calculated by the pulse output of the flowmeter 2. The flexible nanometer rare earth electric heating module 3 is a quick heating device with the power up to 2200W, and is mainly used for quickly heating water flowing through. NTC-100K is a temperature sensor 4, which exhibits a fixed resistance at a specific temperature, so that the resistance and the temperature have a non-linear relationship, and a sensor manufacturer provides a corresponding relationship table, and the resistance of the temperature sensor 4 is measured by the temperature acquisition module 7, so as to calculate the corresponding temperature. The MCU control module 8(STM32F103) is a core control processor of the whole system and is a brain of the whole system, and the high-speed MOS tube driving module I5 and the MOS tube driving module II 9 are controlled through data of the temperature acquisition module 7 and pulse signals of the flowmeter 2 and algorithm calculation, so that the control purpose of the whole system is achieved. The high-speed MOS tube driving module I5 mainly drives the diaphragm pump 1. The high-speed pulse acquisition module 6 is used for receiving pulse signals from the flowmeter 2. The temperature acquisition module 7 mainly functions to convert the resistance output by the NTC-100 temperature sensor 4 into an acquirable voltage signal to be processed by the MCU control module 8. The second MOS transistor driving module 9 mainly converts the signal output by the MCU control module 8 into a signal capable of driving the solid-state relay 10. The solid-state relay 10 mainly receives a control signal of the second MOS tube driving module 9, and controls whether the 220V voltage is conducted or not so as to achieve the effect of controlling the flexible nanometer rare earth electric heating module 3.
As shown in the attached figure 2, the implementation steps of the present invention are step 101, when there is a heating water outlet demand, the MCU control module 8 starts the operation, and the demand is hot water (unit L) with the required temperature of T 1 (unit is C) and the water amount of V 1.
Step 102, detecting a water temperature T 2 at a water inlet of the heating module 3, first, an ADC peripheral (analog-to-digital converter) of the MCU control module 8 acquires a code value V adc corresponding to an MCU input voltage, where the ADC of the control module 8 is a 12-bit analog-to-digital converter, a given reference voltage V ref is 3V, an ADC input pin voltage of the MCU control module 8 is V temp, and a conversion formula is provided according to a relationship between the above variables:
V ref is a fixed value, and the MCU calculates V temp from the measured V adc.
The temperature acquisition module 7 is a resistor and voltage conversion circuit, the input circuit is R temp, the output voltage is V temp, the two are in a linear relation, and the formula is listed as follows:
v temp -kR temp (formula 2)
R temp can be calculated by a formula.
R temp is the resistance value measured by the temperature sensor 4, according to the characteristics of NTC-100K, R temp has a corresponding relation with the measured water temperature T 2, and is a nonlinear relation, and specifically, the table can be looked up through a manual of the NTC-100K of the temperature sensor 4, so when the R temp is known, the table is recorded in the program of the MCU control module 8, and the measured water temperature T 2 can be known through the table look-up.
Step 103, this step is a pre-operation before the system operation, which is equivalent to performing specific index planning on the process in advance, and all the operations are completed by the MCU control module 8, the temperature of the finally heated water T 1 is required, the water amount is V 1, the water temperature at the water inlet of the heating module 3 is T 2, the specific heat capacity of the normal pressure liquid water is c-4.2 kj/(kg ℃) because the water amount of 1kg is almost equal to that of 1L under normal pressure, and the energy required to heat the water from the temperature of T 2 to the temperature of T 1 is:
q (c) (T 1 -T 2) V 1 (formula 3)
the rated power of the used flexible nanometer rare earth electric heating module 3 is P under the condition of 220V alternating current. The heating time is t according to the conservation of energy. The following relationships apply:
Q ═ c (T 1 -T 2) ═ V 1 ═ P ═ T (formula 4)
The heating time t can be determined.
In order to increase the conversion efficiency as much as possible, in the heating process, in which water flows through the heating module 3, it is particularly designed that after the heating time has elapsed, water still flows through the heating module 3, so that the residual heat is entirely carried away by the water, so that it is necessary to moderately increase T 1 in equation 4, set the increased heating temperature target value to T 11, but the heating time T, c, T 2 and the supplied energy are not changed, V 1 is reduced to V 11, the overall process is changed to 2 stages, the water flow of V 11 is heated for T time, then heating is stopped, and the water flow of V 1 -V 11 is output to complete the overall process, in addition to the control of heating, it is necessary to control the water flow rate, the water flow rate flowing through V 11 for T time, in the system, a flow meter 2 is used to measure the water flow rate, which outputs a pulse signal with a parameter M in kg/pulse (kg), each pulse represents the amount of water flowing through M kg), so the number of pulses represents the amount of water flowing through V 11, and the water flow rate of the water flow meter is almost equal to the number of pulses, and the frequency of the water flow rate of the flow of the water flow of n is equal to the number of n, the number of pulses of n, which represents the number of the water flow meter:
V 1 ═ n × M (formula 5)
According to the formula 5, knowing the conditions of V 1 and M, the value of n, i.e. the number of output pulses of the flowmeter 2 during the whole water outlet process, can be obtained.
as described above, the demand of the water discharge speed is the amount of water discharged V 11 in time T, and the meaning of the output of the flow meter 2 as a pulse signal is that each pulse represents the amount of water flowing through m (kg). since the 1kg amount of water is almost equal to 1L of water under normal pressure, and the pulse period is defined as T pulse, m (kg) of water flows through the period T pulse of the pulse output from one flow meter 2, the water speed can be calculated, and the following relations exist:
As described above, in formula 6, V 11, T, and M are all determination variables, then determination data of T pulse can be obtained, T pulse is the period of the output pulse of the flowmeter, and the system controls the flow rate of water by continuously adjusting the PWM control of the diaphragm pump 1, so that the period of the output pulse of the flowmeter 2 is infinitely close to T pulse.
As described above, the entire system control is performed with the heating time T of the heat generation module 3, the number n of pulses of the flow meter 2, and the output pulse period T pulse of the flow meter 2 as targets.
Step 104, heating is started, and the diaphragm pump 1 is started. MCU control module 8 is through driving MOS pipe drive module two 9, and MOS pipe drive current rethread solid state relay 10, provides 220V's alternating current for flexible nanometer tombarthite electric heat module 3 by solid state relay 10. The flexible nanometer rare earth electric heating module 3 can quickly heat water. The MCU control module 8 internally starts a timer to time the heating time. And meanwhile, the MCU control module 8 controls the diaphragm pump 1 to start driving water to flow through the high-speed MOS tube driving module I5, and starts counting the number of pulses of the flowmeter 2 and measuring the output pulse period of the flowmeter 2.
And step 105, judging whether the heating time reaches t by the MCU control module 8. If the heating time is not up, the operation of the pumping speed of the diaphragm pump 1 is continuously controlled. If the heating time has reached t, the operation of the heat generating module 3 is stopped. The flow of water continues to be monitored.
step 106, monitoring the pulse output of the flow meter 2. The number of pulses is counted and the pulse period is measured by the following operation.
And 107, when the measured pulse period is greater than the set T pulse, the water flow speed is low, and the water pumping speed of the diaphragm pump 1 needs to be increased, the operation of 108 is performed, and when the measured pulse period is less than the set T pulse, the water flow speed is high, the water pumping speed of the diaphragm pump 1 needs to be decreased, and the operation of 109 is performed.
And 108, increasing the PWM duty ratio and increasing the power supply voltage of the given diaphragm pump 1 to improve the pumping speed of the diaphragm pump 1 by the MCU control module 8 through the high-speed MOS tube driving module I5 by using a PWM method. After the adjustment is completed, the step 104 is continued to continue heating and continue driving the diaphragm pump 1.
And step 109, the MCU control module 8 reduces the PWM duty ratio and reduces the power supply voltage of the given diaphragm pump 1 to reduce the pumping speed of the diaphragm pump 1 by using a PWM method through the high-speed MOS tube driving module I5. After the adjustment is completed, the step 104 is continued to continue heating and continue driving the diaphragm pump 1.
Step 110, monitoring the pulse output of the flow meter 2. The water amount is counted and the pulses of the flow meter 2 are counted.
And step 111, judging whether the water quantity meets the requirement. Whether the number n of pulses of the flowmeter 2 is reached is judged by counting the pulses output by the flowmeter 2. If the number n of pulses of flowmeter 2 has been reached, step 112 is entered. If the number n of pulses of the flowmeter 2 is not reached, the flow meter 2 continues to monitor the pulse output in step 110.
And 112, stopping driving the high-speed MOS tube driving module I5 by the MCU control module 8, and stopping working of the diaphragm pump 1.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a controllable instant heating type tea machine heating system of temperature which characterized in that: the intelligent heat pump type solar water heater comprises a diaphragm pump (1), a flowmeter (2), a heating module (3), a temperature sensor (4), a MOS (metal oxide semiconductor) tube driving module (5), a pulse acquisition module (6), a temperature acquisition module (7), an MCU (microprogrammed control unit) control module (8), a MOS tube driving module two (9) and a solid-state relay (10), wherein the MOS tube driving module one (5), the pulse acquisition module (6), the temperature acquisition module (7) and the MCU control module (8) are electrically connected with the MCU control module (8) respectively, the diaphragm pump (1) is electrically connected with the MOS tube driving module one (5), the pulse acquisition module (6) is electrically connected with the flowmeter (2), the temperature sensor (4) is electrically connected with the temperature acquisition module (7), the MOS tube driving module two (9) is electrically connected with the solid-state relay (10), and the solid-state relay (10.
2. The temperature-controllable instant heating type tea water machine heating system according to claim 1, characterized in that: and the MCU control module (8) is an STM32F103 microcontroller.
3. The temperature-controllable instant heating type tea water machine heating system according to claim 1, characterized in that: the temperature sensor (4) is an NTC-100K thermistor.
4. The temperature-controllable instant heating type tea water machine heating system according to claim 1, characterized in that: the heating module (3) is a flexible nanometer rare earth electric heating module.
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| CN201920118087.0U CN209750781U (en) | 2019-01-24 | 2019-01-24 | Temperature-controllable instant heating type tea machine heating system |
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| CN201920118087.0U CN209750781U (en) | 2019-01-24 | 2019-01-24 | Temperature-controllable instant heating type tea machine heating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112716294A (en) * | 2021-02-23 | 2021-04-30 | 广东亿龙电器科技有限公司 | Flow velocity adjusting method of beverage machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112716294A (en) * | 2021-02-23 | 2021-04-30 | 广东亿龙电器科技有限公司 | Flow velocity adjusting method of beverage machine |
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Effective date of registration: 20210309 Address after: Room 1731, 1188 Renmin South Road, Kunshan Development Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou yipule Information Technology Co.,Ltd. Address before: 215000 unit 1727, 17th floor, South Building, No.1 building, Kuncheng Plaza, 1188 Renmin South Road, Kunshan Development Zone, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN YIPUTENG AUTOMATION TECHNOLOGY Co.,Ltd. |
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