CN210601554U - Frequency conversion electromagnetic heating steam engine - Google Patents

Frequency conversion electromagnetic heating steam engine Download PDF

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CN210601554U
CN210601554U CN201921394387.8U CN201921394387U CN210601554U CN 210601554 U CN210601554 U CN 210601554U CN 201921394387 U CN201921394387 U CN 201921394387U CN 210601554 U CN210601554 U CN 210601554U
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water
steam
current
module
frequency
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李岳刚
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Shenzhen Dongte Engineering Equipment Co ltd
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Shenzhen Dongte Engineering Equipment Co ltd
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Abstract

The utility model provides a frequency conversion electromagnetic heating steam engine, comprising a water storage tank, a heat sink, cooling water pump, high-pressure water injection pump, inlet tube and steam drum, outside water pipe is connected through the solenoid valve that intakes to storage water tank one end, the inlet tube is carried to the other end through high-pressure water injection pump with cold water in the storage water tank, the inlet tube upper end is equipped with the delivery port, the single or a plurality of parallelly connected or series connection's of intercommunication electromagnetic induction heater between delivery port and the steam drum, still include the converter, current detection device and control panel, current detection device is used for gathering each circuit current signal of converter input and transmits the control panel. The utility model discloses a heating water and leading to the recirculated cooling water to the radiator and giving converter work heat dissipation after solenoid circular telegram, rational in infrastructure, energy saving and consumption reduction.

Description

Frequency conversion electromagnetic heating steam engine
Technical Field
The utility model relates to an electromagnetic heating technical field, in particular to frequency conversion electromagnetic heating steam engine.
Background
The electromagnetic heating technology is to heat the metal material by using the principle of physical 'eddy current', namely, high-frequency alternating current passes through an electromagnetic coil to generate an alternating magnetic field, when the metal material is placed in the coverage range of the magnetic force line of the coil, the metal body is cut by the alternating magnetic field, and the surface generates the alternating current (namely, eddy current) to rapidly heat. Because electromagnetic heating steam engine heating pipe soaks in aqueous or exposes easy incrustation scale in steam for a long time and influences heat exchange efficiency, nevertheless will detect the incrustation scale condition in the electromagnetic heating pipeline and will open the heating pipeline regularly usually and carry out manual inspection, waste time and energy, cause equipment work unusual or damage easily simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a rational in infrastructure, the reliability is high, steam production is fast, the continuous stable output of steam, and heat conversion efficiency is high, has energy-conserving function's frequency conversion electromagnetic heating steam engine, the utility model also provides an automatic incrustation scale detection method of detecting frequency conversion electromagnetic heating steam engine, the method is simple and practical, and the existence of the incrustation scale that can accurately judge has improved the reliability of equipment, has reduced the maintenance cost simultaneously.
The technical scheme of the utility model is realized like this:
the utility model discloses a frequency conversion electromagnetic heating steam engine, which comprises a water storage tank, a radiator, a cooling water pump, a high-pressure water injection pump, a water inlet pipe and a steam tank, wherein one end of the water storage tank is connected with an external tap water pipe through a water inlet electromagnetic valve for water supplement, the other end of the water storage tank conveys cold water in the water storage tank to the water inlet pipe through the high-pressure water injection pump, the upper end of the water inlet pipe is provided with a water outlet, a single or a plurality of electromagnetic induction heaters which are connected in parallel or in series are communicated between the water outlet and the steam tank, the top of the steam tank is provided with a steam port, the steam port is provided with the steam electromagnetic valve, the cooling water pump is arranged between the water storage tank and the radiator and is used for pumping the cold water in the water storage tank into a cavity of the radiator, the frequency converter is hugged closely to the cooling surface of radiator, the frequency converter input is connected power module, its output through connecting wire with the electromagnetic induction heater electricity is connected, the frequency converter input is connected be equipped with the current detection device who is used for detecting this frequency converter input current on each circuit of power module, current detection device is the mutual-inductor, the current signal that the mutual-inductor detected conveys the control panel.
Further, the control panel comprises a current acquisition module, a current conversion module, a comparator module and a driving module,
the current acquisition module is used for acquiring the current analog quantity transmitted by the mutual inductor;
the current conversion module is used for converting the current analog quantity into a current digital quantity;
the comparator module is used for comparing the received current digital quantity with a standard current digital quantity preset value, and if the received current digital quantity is higher than the standard current digital quantity preset value, a heating stopping signal is sent to the driving module;
the driving module is used for driving the frequency converter to output a frequency conversion signal, and when the heating stop signal is received, the frequency converter is immediately stopped from outputting the frequency conversion signal to the electromagnetic induction heater.
Further, the control panel still includes alarm module, alarm module is used for receiving the stop heating signal that the comparator module sent and convert this stop heating signal into clear dirty alarm signal, clear dirty alarm signal sends the alarm suggestion and carries out the scale clearance.
Further, the inlet of the end part of the water inlet pipe and a check valve arranged between the high-pressure water injection pumps are provided, the inlet of the end part of the water inlet pipe corresponds to the other end and is provided with a sewage cleaning port, and the bottom of the water inlet pipe is provided with a drainage gate valve.
Furthermore, a pressure sensor and a temperature sensor are arranged on the steam tank, the pressure sensor is used for collecting a pressure value in the steam tank and transmitting the pressure value to the control panel for processing, and the temperature sensor is used for collecting a steam temperature in the steam tank and transmitting a temperature signal to the control panel for processing.
Further, install on the steam drum and be no less than a water level probe, the water level probe with the control panel electricity is connected, and is used for surveying its steam drum's water level and prevents that the electromagnetic induction heater from burning futilely.
And further, the top of the steam tank is also sequentially provided with a pressure gauge and a mechanical pressure relief valve, and the pressure gauge and the mechanical pressure relief valve are respectively communicated with the steam tank.
Further, the intelligent control system also comprises a touch display screen, wherein the touch display screen is electrically connected with the control panel and is used for realizing human-computer interaction.
Implement the utility model discloses a frequency conversion electromagnetic heating steam engine has following profitable technological effect:
the utility model discloses a carry out electromagnetic heating and lead to the radiator with recirculated cooling water for converter work heat dissipation after solenoid circular telegram to the rivers, preheat cold water and cool down the heat dissipation to electron heating element again simultaneously, make full use of electric energy, and steam generation is fast, and stable output in succession, sanitation and hygiene.
The method for detecting the scale of the variable-frequency electromagnetic heating steam engine by applying the variable-frequency electromagnetic heating steam engine comprises the following steps of:
step one, before the frequency conversion electromagnetic heating steam engine equipment leaves a factory, acquiring current values of all lines input to the input end of a frequency converter by a power module through a current detection device during normal work, and storing the current values into a control board to set the current values to be standard current preset values I1
Step two, when the equipment is used, the current value I of the line when the power module is input to the input end of the frequency converter for working is collected through the current detection device2The current value I2Sent to the controller and the standard current preset value I1Comparing the current values of the lines during working2Greater than or equal to 1.1 times the standard current preset value I1When the water scale is cleaned, the controller sends a heating stopping signal to the frequency converter, and simultaneously sends a scale alarm signal to the alarm to prompt the scale to be cleaned;
step three, stopping the equipment, restarting the equipment after removing the scale in the electromagnetic induction heater pipeline, and when I2Less than 1.1 times I1When the water scale alarm is in a value, the controller sends a heating signal to the frequency converter to drive the electromagnetic induction heater to work, and simultaneously sends a water scale alarm removing signal to the alarm.
Implement the utility model discloses a frequency conversion electromagnetic heating steam engine incrustation scale detection method has following profitable technological effect:
be different from current frequency conversion electromagnetic heating steam engine to the incrustation scale condition detection adopt shut down manual check mode and waste time and energy not enough usually, the utility model discloses a detect each line current value that electromagnetic heater was carried to the converter and when surpassing standard current value 10%, send incrustation scale abnormal alarm signal, its detection method is simple, and the reliability is high, detects with low costs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a functional structure diagram of a variable frequency electromagnetic heating steam engine according to an embodiment of the present invention;
fig. 2 is a functional diagram of a control panel in the variable frequency electromagnetic heating steam engine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 and 2, an embodiment of the present invention provides a frequency conversion electromagnetic heating steam engine, which comprises a water storage tank 1, a heat sink 2, a cooling water pump 3, a high pressure water injection pump 4, a water inlet pipe 5 and a steam tank 6, wherein one end of the water storage tank 1 is connected to an external tap water pipe through a water inlet electromagnetic valve 7 for water supplement, the other end of the water storage tank carries the cold water in the water storage tank 1 to the water inlet pipe 5 through the high pressure water injection pump 4, the upper end of the water inlet pipe 5 is provided with a water outlet, a single or a plurality of electromagnetic induction heaters 8 connected in parallel or in series are communicated between the water outlet and the steam tank 6, the top of the steam tank 6 is provided with a steam port, the steam port is provided with a steam electromagnetic valve 9, the cooling water pump 3 is arranged between the water storage tank 1 and the heat sink 2, the cooling water pump 3 is, The heat dissipation device comprises a current detection device 11 and a control panel 12, wherein the heat dissipation surface of the heat sink 2 is tightly attached to a frequency converter 10 and used for heat dissipation of the frequency converter 10 during working, the input end of the frequency converter 10 is connected with a power supply module 23, the output end of the frequency converter 10 is electrically connected with an electromagnetic induction heater 8 through a connecting lead, the power supply module 23 is connected to each circuit of the input end of the frequency converter 10 and is provided with the current detection device 11 used for detecting the input current of the frequency converter 10, the current detection device 11 is a mutual inductor, and a.
According to one embodiment, the control board 12 includes a current collection module 121, a current conversion module 122, a comparator module 123 and a driving module 124,
the current collecting module 121 is configured to collect current analog quantities transmitted by the transformers;
the current conversion module 122 is configured to convert the current analog quantity into a current digital quantity;
the comparator module 123 is configured to compare the received current digital quantity with a standard current digital quantity preset value, and send a heating stop signal to the driving module 124 if the received current digital quantity is higher than the standard current digital quantity preset value;
the driving module 124 is configured to drive the frequency converter 10 to output a frequency conversion signal, and when receiving the heating stop signal, immediately stop the frequency converter 13 from outputting the frequency conversion signal to the electromagnetic induction heater 8.
According to a specific embodiment, the control board 12 further comprises an alarm module 125, wherein the alarm module 125 is configured to receive the heating stop signal from the comparator module 123 and convert the heating stop signal into a scale removal alarm signal, and the scale removal alarm signal is sent to the alarm 13 to prompt the variable frequency electromagnetic heating steam engine to perform scale removal, which requires the variable frequency electromagnetic heating steam engine to be shut down and perform scale removal.
According to a specific embodiment, a check valve 14 is arranged between the inlet at the end part of the water inlet pipe 5 and the high-pressure water injection pump 4, a dirt cleaning port 15 is arranged at the other end of the inlet at the end part of the water inlet pipe 5, and the dirt cleaning port 15 is used for cleaning scale and other impurities; the bottom of the water inlet pipe 5 is provided with a drainage gate valve 16, and when the drainage gate valve 16 is used for stopping maintenance, waste water in the water inlet pipe 5 is drained, so that the pipeline is prevented from being corroded by the waste water.
According to a specific embodiment, a pressure sensor 17 and a temperature sensor 18 are arranged on the steam tank 6, the pressure sensor 17 is used for collecting the pressure value in the steam tank 6 and transmitting the pressure value to the control board 12 for processing, and the temperature sensor 18 is used for collecting the temperature of the steam in the steam tank 6 and transmitting the temperature signal to the control board 12 for processing.
According to a specific embodiment, at least one water level probe 19 is installed on the steam tank 6, the water level probe 19 is electrically connected with the control board 12, and the water level for detecting the steam tank 6 prevents the electromagnetic induction heater 8 from being dried, the bottom of the steam tank 6 must be kept at a certain water level to prevent the electromagnetic induction heater 8 connected to the lower part of the steam tank 6 from being dried, the upper part of the inner cavity of the steam tank 6 is a steam storage part, and steam is output from the steam electromagnetic valve 9 arranged on the upper part of the steam tank 6.
According to a specific embodiment, the top of the steam tank 6 is further sequentially provided with a pressure gauge 20 and a mechanical pressure relief valve 21, the pressure gauge 20 and the mechanical pressure relief valve 21 are respectively communicated with the steam tank 6, and the set mechanical pressure relief valve 21 is used for automatically relieving pressure when the pressure of the steam tank 6 exceeds a safety value, so that a protection effect is achieved.
According to a specific embodiment, the variable frequency electromagnetic heating steamer further comprises a touch display screen 22, and the touch display screen 22 is electrically connected with the control board 12 and is used for realizing human-computer interaction.
Implement the utility model discloses a frequency conversion electromagnetic heating steam engine has following profitable technological effect:
the utility model discloses a carry out electromagnetic heating and lead to the radiator with recirculated cooling water for converter work heat dissipation after solenoid circular telegram to the rivers, preheat cold water and cool down the heat dissipation to electron heating element again simultaneously, make full use of electric energy, and steam generation is fast, and stable output in succession, sanitation and hygiene.
Further explaining:
different from the heating mode of a heating element which is immersed in water when the traditional electric heating steam engine is electrified, the variable-frequency electromagnetic heating steam engine for automatically detecting scale adopts electromagnetic induction heating, the electromagnetic coil is arranged on the outer surface of the ceramic tube, and insulating cloth is arranged between the electromagnetic coil and the ceramic tube, the insulating cloth has insulating and heat-preserving effects, the electromagnetic coil is electrified to generate a high-frequency magnetic field to act on the high-permeability metal heating element (metal rod body), the heating element is arranged in the ceramic tube, a water flow gap is arranged between the ceramic tube and the heating body, the metal in the high-frequency magnetic field generates vortex to heat, directly exchanges heat with water flow passing through the water flow gap, the heating body adopts a metal rod body, the outer surface of the metal rod body is smooth, the outer surface of the smooth metal rod body and the inner surface of the smooth ceramic tube are not easy to generate scale, the heating speed is high, complete water and electricity separation is realized, and the device is safe and reliable.
The electromagnetic induction heater comprises an electromagnetic coil, a ceramic tube and a heating body made of metal materials, wherein two ends of the ceramic tube are respectively provided with a flange extending in the radial direction, the heating body is a solid rod body, the heating body is arranged in the ceramic tube, and a water flow gap is formed between the ceramic tube and the heating body; the gap between the ceramic tube and one end of the heating body is a cold water inlet, the gap between the ceramic tube and the other end of the heating body is a hot water outlet, the two ends of the ceramic tube and the heating body are in supporting fit with the radial supporting plates, the supporting plates are connected through the supporting rods, and the electromagnetic coil is arranged on the outer surface of the ceramic tube. Wherein, the electromagnetic induction heater both ends all are connected with inlet tube and steam pipe through the hose, also can not influence the sealing performance of its junction when whole equipment of steam engine shakes, guarantee the long-term steady operation of equipment.
The variable-frequency electromagnetic heating steam engine is a heater which converts electric energy into heat energy by utilizing an electromagnetic induction principle, a power supply device converts 50HZ/60HZ alternating current voltage into direct current in a controller, and the direct current is converted into high-frequency alternating current with the frequency of 10KHZ-40KHZ by a frequency converter; when high-frequency alternating current flows through an electromagnetic coil (high-frequency wire) wound outside the ceramic tube, magnetic lines of force generated inside a high-speed changing magnetic field cut a heating body (metal rod body) inside the magnetic field to generate countless small eddy currents, so that water is heated quickly, and the effect of quickly heating the water is achieved. By detecting the abnormal change signal of the current value flowing in the electromagnetic coil, if the current of the electromagnetic coil exceeds 10% of the normal current, the scale accumulation in the electromagnetic heating tube is judged to exceed the normal standard, and the electromagnetic heating tube is stopped for cleaning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made by adopting the whole or partial implementation within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A frequency conversion electromagnetic heating steam engine comprises a water storage tank, a radiator, a cooling water pump, a high-pressure water injection pump, a water inlet pipe and a steam tank, wherein one end of the water storage tank is connected with an external tap water pipe through a water inlet electromagnetic valve for water supplement, the other end of the water storage tank conveys cold water in the water storage tank to the water inlet pipe through the high-pressure water injection pump, the upper end of the water inlet pipe is provided with a water outlet, a single or a plurality of electromagnetic induction heaters which are connected in parallel or in series are communicated between the water outlet and the steam tank, the top of the steam tank is provided with a steam port, the steam port is provided with the steam electromagnetic valve, the cooling water pump is arranged between the water storage tank and the radiator and is used for pumping the cold water in the water storage tank into a cavity of the radiator and, the frequency converter is hugged closely to the cooling surface of radiator, the frequency converter input is connected power module, its output through connecting wire with the electromagnetic induction heater electricity is connected, the frequency converter input is connected be equipped with the current detection device who is used for detecting this frequency converter input current on each circuit of power module, current detection device is the mutual-inductor, the current signal that the mutual-inductor detected conveys the control panel.
2. The variable-frequency electromagnetic heating steam engine of claim 1, wherein the control board comprises a current collection module, a current conversion module, a comparator module and a driving module,
the current acquisition module is used for acquiring the current analog quantity transmitted by the mutual inductor;
the current conversion module is used for converting the current analog quantity into a current digital quantity;
the comparator module is used for comparing the received current digital quantity with a standard current digital quantity preset value, and if the received current digital quantity is higher than the standard current digital quantity preset value, a heating stopping signal is sent to the driving module;
the driving module is used for driving the frequency converter to output a frequency conversion signal, and when the heating stop signal is received, the frequency converter is immediately stopped from outputting the frequency conversion signal to the electromagnetic induction heater.
3. The variable-frequency electromagnetic heating steam engine according to claim 2, wherein the control board further comprises an alarm module, the alarm module is used for receiving a heating stop signal sent by the comparator module and converting the heating stop signal into a scale cleaning alarm signal, and the scale cleaning alarm signal is sent to an alarm to prompt scale cleaning.
4. The variable-frequency electromagnetic heating steam engine according to claim 1, wherein a check valve is arranged between the inlet of the end part of the water inlet pipe and the high-pressure water injection pump, a dirt cleaning port is arranged at the other end of the inlet of the end part of the water inlet pipe corresponding to the inlet, and a drain gate valve is arranged at the bottom of the water inlet pipe.
5. The variable-frequency electromagnetic heating steam engine according to claim 1, wherein a pressure sensor and a temperature sensor are arranged on the steam tank, the pressure sensor is used for collecting a pressure value in the steam tank and transmitting the pressure value to the control board for processing, and the temperature sensor is used for collecting a steam temperature in the steam tank and transmitting a temperature signal to the control board for processing.
6. The variable-frequency electromagnetic heating steamer as claimed in claim 1, wherein the steamer is provided with at least one water level probe, the water level probe is electrically connected with the control board and is used for detecting the water level of the steamer to prevent the electromagnetic induction heater from being burnt.
7. The variable-frequency electromagnetic heating steam engine according to claim 1, wherein a pressure gauge and a mechanical pressure relief valve are further sequentially arranged at the top of the steam tank, and the pressure gauge and the mechanical pressure relief valve are respectively communicated with the steam tank.
8. The variable-frequency electromagnetic heating steamer as claimed in claim 1, further comprising a touch display screen electrically connected with the control board and used for human-computer interaction.
CN201921394387.8U 2019-08-26 2019-08-26 Frequency conversion electromagnetic heating steam engine Active CN210601554U (en)

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Application Number Priority Date Filing Date Title
CN201921394387.8U CN210601554U (en) 2019-08-26 2019-08-26 Frequency conversion electromagnetic heating steam engine

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Application Number Priority Date Filing Date Title
CN201921394387.8U CN210601554U (en) 2019-08-26 2019-08-26 Frequency conversion electromagnetic heating steam engine

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CN210601554U true CN210601554U (en) 2020-05-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111878790A (en) * 2020-08-25 2020-11-03 安徽铱玛热能设备制造股份有限公司 Multifunctional electromagnetic heating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111878790A (en) * 2020-08-25 2020-11-03 安徽铱玛热能设备制造股份有限公司 Multifunctional electromagnetic heating device

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