CN108645047B - Vacuum tube heating device - Google Patents
Vacuum tube heating device Download PDFInfo
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- CN108645047B CN108645047B CN201810741869.XA CN201810741869A CN108645047B CN 108645047 B CN108645047 B CN 108645047B CN 201810741869 A CN201810741869 A CN 201810741869A CN 108645047 B CN108645047 B CN 108645047B
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- vacuum tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The invention provides a vacuum tube heating device, and belongs to the technical field of vacuum tubes. The vacuum tube heating device comprises a resistance detection part for detecting the resistance value of the vacuum tube, a temperature measurement part for collecting the temperature of the vacuum tube, a processor for regulating the preset output power according to the temperature of the vacuum tube and the resistance value of the vacuum tube, and a voltage and power regulating device for regulating the voltage and the power according to the preset output power. According to the invention, the resistance detection part detects the resistance value of the vacuum tube, the temperature measurement part collects the temperature of the vacuum tube, the temperature of the vacuum tube is detected in real time, then the processor adjusts the voltage and the work of the vacuum tube according to the preset output power of the vacuum tube, the voltage and the work adjusting device adjusts the voltage and the work of the vacuum tube according to the preset output power, and the voltage is applied to the self impedance of the pipeline to heat the vacuum tube to the preset temperature of the vacuum tube, so that the vacuum tube temperature detection device is simple in structure, high in precision, simple and convenient to operate and high in heating efficiency.
Description
Technical Field
The invention belongs to the technical field of vacuum tubes, and relates to a vacuum tube heating device.
Background
The vacuum tube heating device is applied to heating in various vacuum tubes; the device has small volume, high heat efficiency and convenient operation and adjustment.
In a trough molten salt system, a vacuum tube is used for transporting molten salt medium, and because the melting point of molten salt is higher, a solar reflecting and focusing mode is adopted outside the vacuum tube to heat a molten salt pipeline in the vacuum tube. Due to the influence of weather, the heating temperature is easy to suddenly drop, and particularly, the temperature efficiency is low at the joint of each vacuum tube, namely the joint with the worst light, so that molten salt medium in the tube can be solidified seriously, thereby influencing the production and the use. In order to solve the problems, the auxiliary heating mode is adopted to carry out compensation heating or the solidified part is heated, melted and dredged, and the heat loss is reduced by adopting vacuum treatment to the pipeline of the storage medium, so that the traditional heat conduction heating mode cannot be used for carrying out heating treatment.
Disclosure of Invention
The invention aims at the problems existing in the prior art, and provides a vacuum tube heating device, which aims at solving the technical problems that: how to heat by applying power to the impedance of the vacuum tube.
The aim of the invention can be achieved by the following technical scheme:
the vacuum tube heating device is used for heating the vacuum tube and comprises a resistance detection part for detecting the resistance value of the vacuum tube, a temperature measurement part for collecting the temperature of the vacuum tube, a processor for regulating the preset output power according to the temperature of the vacuum tube and the resistance value of the vacuum tube and a pressure regulating and power regulating device for regulating the pressure and the power according to the preset output power.
Preferably, the circuit breaker is further included for powering off the protective vacuum tube when the vacuum tube current exceeds a preset current value.
Preferably, the resistance detection element is a direct current milliohmmeter.
Preferably, the processor is provided with a signal compensation module for compensating errors of the temperature and the resistance of the vacuum tube.
Preferably, the device further comprises a shunt output part for enabling the resistance detection part and the voltage and power regulating device to work singly.
Preferably, the device further comprises a shielding protection piece for shielding external signal interference.
Preferably, an isolation protection piece for preventing heat dissipation of the voltage and power regulating device from causing temperature rise of other devices is arranged on the outer side of the voltage and power regulating device.
Preferably, the processor comprises a temperature detection module for detecting the temperature of the vacuum tube.
Preferably, the vacuum tube is provided with a double-sided door, a button and a touch screen for controlling the resistance detection piece, the voltage and power regulating device and the processor are arranged on the inner side of the double-sided door, and a window for preventing water is arranged on the outer side of the double-sided door.
Preferably, the device further comprises a heat dissipation piece for dissipating heat of the voltage and power regulating device.
According to the invention, the resistance detection part detects the resistance value of the vacuum tube, the temperature measurement part collects the temperature of the vacuum tube, the temperature of the vacuum tube is detected in real time, then the processor adjusts the voltage and the work of the vacuum tube according to the preset output power of the vacuum tube, the voltage and the work adjusting device adjusts the voltage and the work of the vacuum tube according to the preset output power, and the voltage is applied to the self impedance of the pipeline to heat the vacuum tube to the preset temperature of the vacuum tube, so that the vacuum tube temperature detection device is simple in structure, high in precision, simple and convenient to operate and high in heating efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the inside of the double-sided door in the present invention;
fig. 3 is a schematic view of the structure of the outside of the double door in the present invention.
In the figure: the device comprises a 1-vacuum tube, a 2-temperature measuring part, a 3-resistance detecting part, a 4-processor, a 5-voltage and power regulating device, a 6-circuit breaker, a 7-shunt output part, a 81-touch screen, a 82-button and a 83-window.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1, the vacuum tube heating device in the present embodiment is configured to heat a vacuum tube 1, and includes a resistance detecting element 3 for detecting a resistance value of the vacuum tube, a temperature measuring element 2 for collecting a temperature of the vacuum tube, a processor 4 for obtaining a predetermined output power according to the temperature of the vacuum tube and the resistance value of the vacuum tube, and a voltage and power regulating device 5 for regulating voltage and power according to the predetermined output power.
Here, resistance detection spare 3 detects the vacuum tube resistance, temperature measurement spare 2 gathers the vacuum tube temperature, real-time detection vacuum tube's temperature, then the vacuum tube temperature that temperature measurement spare 2 gathered and resistance detection spare 3 detected is worth the predetermined output of vacuum tube, treater 4 can be singlechip or PLC or industrial computer, voltage regulating power regulating device 5 carries out voltage regulating power regulating to the vacuum tube according to predetermined output, heat to the preset temperature of vacuum tube through applying the voltage at the impedance of pipeline oneself, and is simple structure, the precision is higher, easy and simple to handle, heating efficiency is higher.
Because the resistance of the heated object will change due to the temperature change, the device needs to have high sensitivity to respond to the change, and the processor 4 can be a single-chip microcomputer with high computing capability.
Because the resistance of the heated object is smaller, when the voltage at two sides is regulated, a high-precision voltage and power regulating device 5 is needed, the voltage and power regulating device 5 can be a stepless voltage and power regulating device 5, the regulating range can be 0-100%, and the reaction and precision are high. The voltage and power regulating device 5 can be a JK3S series three-phase all-digital silicon controlled rectifier voltage regulator power regulator.
The vacuum tube heating device in this embodiment may further include a circuit breaker 6 for protecting the vacuum tube by switching off the vacuum tube when the vacuum tube current exceeds a preset current value, so that damage to the circuit caused by excessive vacuum tube current can be avoided, and when the vacuum tube current exceeds the preset current value, the wire is burned out to cause fire, thereby causing personnel injury or property loss. The breaker 6 can switch on, bear and break off the current under the normal loop condition and can switch on, bear and break off the current under the abnormal loop condition in a specified time, prevent the expansion of accidents and ensure the safe operation. The circuit breaker 6 may be a high voltage circuit breaker 6 or a low voltage circuit breaker 6, and the circuit breaker 6 may be constituted by a contact system, an arc extinguishing system, an operating mechanism, a trip, a housing, etc.
The resistance detecting element 3 may be a direct current milliohmmeter. The resistance detecting element 3 can be a digital direct current milliohm meter, the measuring range can be 0-9999mΩ, the precision can be +/-0.5%, the highest resolution is 1mΩ, the resistance value of the measured object can be accurately measured, the measured resistance value is displayed and transmitted to the processor 4 through the analog quantity, and the processor 4 performs calculation processing.
The processor 4 is provided with a signal compensation module for compensating errors in the temperature and resistance of the vacuum tube. When the precision of the whole device collection and output does not reach the preset precision, the signal compensation module compensates the errors of the temperature and the resistance of the vacuum tube so as to reach the preset precision, the precision of the temperature measuring piece 2 and the resistance detecting piece 3 is improved, and the heating efficiency of the vacuum tube is further improved.
The vacuum tube heating device in this embodiment may further include a shunt output member 7 for making the resistance detecting member 3 and the voltage-regulating and power-regulating device 5 work singly. Because the resistance acquisition signal of the resistance detection part 3 and the power output of the voltage and power regulating device 5 are both the same set of cables, the resistance value of the pipeline is measured during the power output, and the resistance detection part 3 is damaged or burnt by high current. If the two work simultaneously, the two work can influence each other and damage the acquisition signal module in the resistance detection part 3, so the resistance detection part 3 and the voltage and power regulating device 5 are intermittently controlled through the shunt output part 7, the single work of the resistance detection part 3 and the voltage and power regulating device 5 is realized, the two work simultaneously in the same time, namely, when the resistance value is acquired, the power is not output, when the resistance value is not acquired, the power is not interfered with each other, and the efficiency and the precision are improved.
Here, the shunt output part 7 may be turned on for a period of time in one period, and the signal acquisition loop of the resistance detection part 3 is turned on by using a period of time when the shunt output part is turned off, that is, when the power output of the voltage and power regulating device 5 is turned on, signal acquisition is turned off, and when the power output is turned off, signal acquisition of the resistance detection part 3 is turned on. The shunt output piece 7 can realize switching through a switching signal given by the processor 4, can be simplified into two groups of contacts, namely, one contact is opened and one contact is closed and one contact is opened when the signal given by the processor 4 is changed from 0 to 1 (namely, the opening and the closing are changed), so that different simultaneous operations of the two contacts are realized; the power output and the turn-off are triggered in the zero crossing, and the measuring resistance is measured at the moment when the power is not output in one period, so that the accuracy of measurement is ensured when the power output is not affected.
The vacuum tube heating device in this embodiment may further include a shielding protection member for shielding interference of external signals, so that the interference of external signals with the temperature measuring member 2 and the resistance detecting member 3 can be avoided, thereby affecting the detection accuracy of the two.
The outside of the voltage and power regulating device 5 can be provided with an isolation protection piece for preventing the heat dissipation of the device from causing the temperature rise of other devices. The pressure and power regulating device 5 has large self heating value, is arranged at the edge of the vacuum tube shell and is used for better heat dissipation, and meanwhile, the pressure and power regulating device 5 is isolated from the rest devices through the isolation protection piece and is used for preventing the rest devices from being heated, so that the devices are damaged due to overhigh temperature.
The processor 4 may include a temperature detection module for detecting the temperature of the vacuum tube, so that the temperature of the vacuum tube can be detected by the temperature detection module, and the device is convenient and quick and has a simple structure.
Referring to fig. 2 and 3, the vacuum tube may be provided with a double-sided door, the inner side of the double-sided door is provided with a button 82 and a touch screen 81 for controlling the resistance detecting member 3, the voltage and power regulating device 5 and the processor 4, and the outer side of the double-sided door is provided with a window 83 for waterproofing, so that the resistance detecting member 3, the voltage and power regulating device 5 and the processor 4 can be conveniently controlled, and meanwhile, the interior of the vacuum tube can be observed through the window 83. All data can be calculated, transported and stored by the processor 4, the data are uploaded to the touch screen 81 by the processor 4, and each data are read and monitored by the touch screen 81 and stored; the data may include temperature, voltage, resistance, power, operating conditions, etc.; operations may also be implemented by the touch screen 81; operations may include start-stop, setting of target temperature, setting of manual power output, etc.
The vacuum tube heating device in this embodiment may further include a heat dissipation member for dissipating heat from the voltage and power regulating device 5. The pressure regulating power regulating device 5 self calorific capacity is big, can dispel the heat for pressure regulating power regulating device 5 through the radiating part, and the radiating part can be fin or fan, and radiating efficiency is higher, convenient operation.
As the vacuum tube heating device in the present embodiment, a portable operation electric control box of outdoor waterproof design can be adopted; the operation surface of the box body can be monitored by a touch screen 81; the internal main components can be composed of a voltage regulating and power regulating device 5, a processor 4 with a temperature module, a digital direct-current milliohmmeter, a shunt output piece 7, a leakage protection tripping circuit breaker 6 and an overcurrent protection device; the box body is provided with a power inlet cable (different plugs can be arranged) and a detection and power output cable. The shell of the vacuum tube heating device can be made of aluminum materials, weight is reduced, heat conductivity is good, the radiating fin used for radiating the voltage and power regulating device 5 is locally arranged on the back of the shell, the cable hook used for hanging the cable is configured, and the power cable between components and the shielded wire and cable used for signal communication need to be separated, so that signal interference is avoided. Calculating through a resistance value signal uploaded by a digital direct current milliohm meter and a temperature signal acquired by the digital direct current milliohm meter, and outputting the most reasonable data to the voltage and power regulating device 5 so as to enable the voltage and power regulating device to output corresponding power; and corresponding signals can be reasonably distributed and output to the shunt output part 7, so that the corresponding distribution is cut off, and the conflict between the acquired signals and the power output is avoided.
Here, the power supply inlet wire of the vacuum tube heating device provides 220v and 50hz alternating current, and the alternating current is distributed to all devices by the leakage protection and disconnection circuit breaker 6 and the overcurrent protection device, and the vacuum tube heating device comprises a digital direct current milliohmmeter, an electrodeless voltage and power regulation device 5, a programmable processor 4 with a temperature module, a shunt output piece 7 and a touch screen 81, and provides working power supply for the vacuum tube heating device.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The vacuum tube heating device is used for heating the vacuum tube (1), and is characterized in that: the device comprises a resistance detection part (3) for detecting the resistance value of the vacuum tube, a temperature measurement part (2) for collecting the temperature of the vacuum tube, a processor (4) for regulating the preset output power according to the temperature of the vacuum tube and the resistance value of the vacuum tube, and a voltage and power regulating device (5) for regulating the voltage and the power according to the preset output power; the vacuum tube is provided with a double-sided door, the inner side of the double-sided door is provided with a button (82) and a touch screen (81) for controlling the resistance detection piece (3), the voltage and power regulating device (5) and the processor (4), and the outer side of the double-sided door is provided with a window (83) for preventing water.
2. A vacuum tube heating apparatus as claimed in claim 1, wherein: the vacuum tube protection circuit further comprises a circuit breaker (6) for breaking and protecting the vacuum tube when the current of the vacuum tube exceeds a preset current value.
3. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the resistance detection piece (3) is a direct-current milliohmmeter.
4. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the processor (4) is provided with a signal compensation module for compensating errors of the temperature and the resistance of the vacuum tube.
5. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the device also comprises a shunt output piece (7) which is used for enabling the resistance detection piece (3) and the voltage and power regulating device (5) to work singly.
6. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the device also comprises a shielding protection piece for shielding external signal interference.
7. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: and an isolation protection piece for preventing heat dissipation of the pressure regulating and power regulating device (5) from causing temperature rise of other devices is arranged on the outer side of the pressure regulating and power regulating device.
8. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the processor (4) comprises a temperature detection module for detecting the temperature of the vacuum tube.
9. A vacuum tube heating apparatus as claimed in claim 1 or 2, wherein: the heat-dissipating component is used for dissipating heat of the voltage-regulating and power-regulating device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741869.XA CN108645047B (en) | 2018-07-09 | 2018-07-09 | Vacuum tube heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741869.XA CN108645047B (en) | 2018-07-09 | 2018-07-09 | Vacuum tube heating device |
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| Publication Number | Publication Date |
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| CN108645047A CN108645047A (en) | 2018-10-12 |
| CN108645047B true CN108645047B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810741869.XA Active CN108645047B (en) | 2018-07-09 | 2018-07-09 | Vacuum tube heating device |
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2018
- 2018-07-09 CN CN201810741869.XA patent/CN108645047B/en active Active
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| WO2013026932A1 (en) * | 2011-08-24 | 2013-02-28 | Eamon Smyth | An apparatus and method for preventing solar overheating |
| EP2813782A1 (en) * | 2013-06-13 | 2014-12-17 | Narva Lichtquellen GmH + Co. KG | Deactivable solar collector |
| CN204576338U (en) * | 2015-05-05 | 2015-08-19 | 佛山市顺德区美的电热电器制造有限公司 | Power conditioning circuitry and cooking apparatus |
| CN106840439A (en) * | 2016-12-29 | 2017-06-13 | 北京怡和嘉业医疗科技股份有限公司 | Heat the temperature acquisition method and device of pipeline |
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| CN107462768A (en) * | 2017-08-14 | 2017-12-12 | 中车株洲电机有限公司 | A kind of conductor electric heating circulating experimental provision and method |
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