CN203084593U - Electric heating rod power control system based on computer control - Google Patents
Electric heating rod power control system based on computer control Download PDFInfo
- Publication number
- CN203084593U CN203084593U CN 201220698275 CN201220698275U CN203084593U CN 203084593 U CN203084593 U CN 203084593U CN 201220698275 CN201220698275 CN 201220698275 CN 201220698275 U CN201220698275 U CN 201220698275U CN 203084593 U CN203084593 U CN 203084593U
- Authority
- CN
- China
- Prior art keywords
- power
- electric heating
- control system
- electrically heated
- pellet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model belongs to a thermal state experimental simulation device used for experimental research on reactors and particularly relates to an electric heating rod power control system based on computer control. The system comprises a power amplification circuit connected with a power supply, the power amplification circuit is connected with a computer of the control system and provided with a plurality of power output ports, each power output port is connected with a wire leaded by a resistance wire of an electric heating pellet of an electric heating rod, and the electric heating rod comprises a plurality of electric heating pellets which are arranged in a heat conducting sleeve pipe in an arraying mode. Voltage loaded on each electric heating pellet is independently controlled through the computer, and thus the pellet type electric heating rod can have the advantages that response is fast and power is convenient to change. The system can further achieve accurate simulation of various nuclear feedback phenomena happening to power of a fuel rod in reality and thus provides favorable foundation for strengthening of nuclear reactor experimental research methods.
Description
Technical field
The utility model belongs to the hot experimental simulation device that is used for the reactor experimental study, is specifically related to a kind of based on computer-controlled electrically heated rod power control system.
Background technology
Departure nucleate boiling (DNB) does not take place in fuel rod surface, be to need one of important safety limit value of guaranteeing in the nuclear plant safety design process, as precondition, mensuration need experimentize to the critical heat flux density (CHF) on fuel can surface under the various typical conditions.Because nuclear power station run duration, fuel rod surface often is not evenly heating vertically, and very big to exerting an influence of DNB phenomenon, thereby must in experiment, realize the function that distributes with fuel rod surface work rate in the electrically heated mode mock-up reactor along the axial distribute power of fuel rod.
Report in the pertinent literature, can utilize the mode of the non-uniform thickness electric heating tube of internal diameter varies to realize this function.Yet the limitation of this experimental technique is, because the heating-pipe structure abnormity, so its processing difficulties, and the distribute power shape that this heating tube can simulate is cured, and makes and tests the shortage dirigibility.
The situation of reality is, in the reactor operation process, and vertically distribute power on the fuel rod, along with burnup changes, control rod position and operating point difference are presenting various shape facility.Therefore, need to seek the method that conveniently to simulate more typical shape distribute power.
Febrile state for fuel rod in the accurate mock-up reactor, can imitate the real structure characteristics of fuel rod, electrical heating pellet 2 is arranged in turn, be wrapped among the thermal conducting sleeve 1, realize that by the power of controlling each electrical heating pellet its structure as shown in Figure 1 to the function of the accurate simulation of whole fuel rod.
For realizing accurate control, need a kind of system that can apply precise voltage of exploitation for every pair of terminal of drawing by pellet to each electrical heating pellet heating power.
The utility model content
The purpose of this utility model is the control at the electrically heated rod with simulation different capacity distributed function, provide a kind of, thereby provide more effective electrical heating simulation means for nuclear plant safety research experiment checking work based on computer-controlled electrically heated rod power control system.
The technical solution of the utility model is as follows: a kind of based on computer-controlled electrically heated rod power control system, comprise the power amplification circuit that is connected with power supply, power amplification circuit is connected with the computing machine of control system, and have some power take-off mouths, each power take-off mouth is connected with the lead that the resistance wire of an electrical heating pellet of electrically heated rod is drawn, and described electrically heated rod comprises that several arrangements are arranged on the electrical heating pellet in the thermal conducting sleeve.
Further, aforesaid based on computer-controlled electrically heated rod power control system, wherein, and some power take-off mouth theretos of described power amplification circuit, the lead of drawing with the electrical heating pellet of electrically heated rod in terminal box links to each other in turn.
Further, aforesaid based on computer-controlled electrically heated rod power control system, wherein, the computing machine of control system is the signal of the signal receiving end input specific coding of power amplification circuit, pass through conversion of signals, each power take-off mouth of power amplification circuit obtains the signal of appointment, and the magnification ratio of basis signal distributes voltage to every pair of power take-off.
The beneficial effects of the utility model are as follows: electrically heated rod power control system provided by the utility model, can make the heating system of electrically heated rod, and quite similar in the true heating mechanism of fuel rod, can provide more simulate effect near reality.Simultaneously owing to the voltage that loads on each electrical heating pellet is carried out independent control by computing machine, can make pellet formula electrically heated rod have response rapidly, become power characteristics easily, can also realize fuel rod power in the reality is occurred the accurate simulation of various nuclear feedback phenomenon, thereby provide favourable basis for strengthening nuclear reactor experimental study means.
Description of drawings
Fig. 1 is the electrically heated rod structural representation with simulation different capacity distributed function;
Fig. 2 is of the present utility model based on computer-controlled electrically heated rod power control system composition synoptic diagram;
Fig. 3 is a power control system schematic diagram of the present utility model;
Fig. 4 is the power distribution curve synoptic diagram of electrically heated rod.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 2, a kind of based on computer-controlled electrically heated rod power control system, comprise the power amplification circuit 4 that is connected with power supply 5, power amplification circuit 4 is connected with the computing machine 7 of control system, and having some power take-off mouths 6, each power take-off mouth 6 is connected with the lead that the resistance wire of an electrical heating pellet of electrically heated rod is drawn.
The structure of described electrically heated rod comprises that several arrangements are arranged on the electrical heating pellet 2 in the thermal conducting sleeve 1 as shown in Figure 1, and electrical heating pellet 2 inside are provided with resistance wire 3, and couple of conductor is drawn to thermal conducting sleeve 1 outside in resistance wire 3 two ends.
When this control system is applied to test, each of power amplification circuit need be inserted special junction box to power take-off, and link to each other in turn with every pair of lead that the resistance wire of pellet formula electrically heated rod is drawn, the power lead of power amplification circuit is inserted given stable AC/DC power supply, control system can be under the control of computing machine, import the signal of specific coding for the signal receiving end of power amplification circuit, by decoding and conversion, each power take-off mouth of power amplification circuit can obtain the signal of appointment, and can distribute voltage to every pair of power take-off according to its magnification ratio.Because each two ends to lead is access in the voltage of appointment, thereby make each electrical heating pellet as requested with specific power heating.The heat of each pellet comes out by retraining its outer thermal conducting sleeve, thereby realizes the simulation to the fuel rod distribute power.
In a specific embodiment, as shown in Figure 3, control system has been sent a series of coded signals under the control of computing machine, as 01010101,01010111 ... 01011111,01010101, by scale-of-two to metric conversion, can obtain a series of numerical value 85,87 ... 95,85, these numerical value can be used as the power coefficient of electrical heating pellet, when each pellet unit calibration power is 1w, multiply by calibration power with power coefficient, promptly obtain the power of each electrical heating pellet: 85*1=85w, 87*1=87w ... 95*1=95w, 85*1=85w.Thereby the electrically heated rod power distribution curve that obtains as shown in Figure 4.
The electrically heated rod power control system that the utility model proposes can make the heating system of electrically heated rod, and is quite similar in the true heating mechanism of fuel rod, can provide more the simulate effect near reality.Simultaneously owing to the electric signal that sends by computing machine can be by the decoding and the conversion of power amplification circuit, the voltage that loads on each electrical heating pellet is carried out independent control, thereby can make pellet formula electrically heated rod have response rapidly, become power characteristics easily, can also realize fuel rod power in the reality is occurred the accurate simulation of various nuclear feedback phenomenon, thereby provide favourable basis for strengthening nuclear reactor experimental study means.
In addition, because the power control system that the utility model proposes adopts weak electric signal to control the mode of heavy current installation, also be the strong and weak electricity isolation of experimental provision, improving the experiment site safety and conveniently managing provides advantage.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technology thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (2)
1. one kind based on computer-controlled electrically heated rod power control system, it is characterized in that: comprise the power amplification circuit that is connected with power supply, power amplification circuit is connected with the computing machine of control system, and have some power take-off mouths, each power take-off mouth is connected with the lead that the resistance wire of an electrical heating pellet of electrically heated rod is drawn, and described electrically heated rod comprises that several arrangements are arranged on the electrical heating pellet in the thermal conducting sleeve.
2. as claimed in claim 1 based on computer-controlled electrically heated rod power control system, it is characterized in that: some power take-off mouth theretos of described power amplification circuit, the lead of drawing with the electrical heating pellet of electrically heated rod in terminal box links to each other in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698275 CN203084593U (en) | 2012-12-17 | 2012-12-17 | Electric heating rod power control system based on computer control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698275 CN203084593U (en) | 2012-12-17 | 2012-12-17 | Electric heating rod power control system based on computer control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084593U true CN203084593U (en) | 2013-07-24 |
Family
ID=48830417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698275 Expired - Fee Related CN203084593U (en) | 2012-12-17 | 2012-12-17 | Electric heating rod power control system based on computer control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203084593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064458A (en) * | 2012-12-17 | 2013-04-24 | 中国核电工程有限公司 | Electric heating rod power control system based on computer control |
| CN104575637A (en) * | 2014-12-15 | 2015-04-29 | 中国核电工程有限公司 | Testing device and testing method for simulating fuel jacket performance |
-
2012
- 2012-12-17 CN CN 201220698275 patent/CN203084593U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064458A (en) * | 2012-12-17 | 2013-04-24 | 中国核电工程有限公司 | Electric heating rod power control system based on computer control |
| CN103064458B (en) * | 2012-12-17 | 2015-08-26 | 中国核电工程有限公司 | A kind of based on computer-controlled electrically heated rod power control system |
| CN104575637A (en) * | 2014-12-15 | 2015-04-29 | 中国核电工程有限公司 | Testing device and testing method for simulating fuel jacket performance |
| CN104575637B (en) * | 2014-12-15 | 2017-05-31 | 中国核电工程有限公司 | A kind of experimental rig and method for analog fuel involucrum performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103024952B (en) | A kind of electric heater unit with simulation different capacity distributed function | |
| CN103852666B (en) | A kind of wire harness tester | |
| CN104015942A (en) | Ultrahigh-temperature thermal current simulation system used for spacecraft vacuum thermal test | |
| CN106940273B (en) | A kind of critical performance testing device of Superconducting Strand bending strain | |
| CN103064458B (en) | A kind of based on computer-controlled electrically heated rod power control system | |
| CN103728555A (en) | Temperature rise test circuit of low-voltage complete set switchgear and test method thereof | |
| CN203084593U (en) | Electric heating rod power control system based on computer control | |
| CN111539147A (en) | Seabed umbilical cable temperature field analysis based on finite element simulation | |
| CN202372224U (en) | Liquid level measuring device for liquid helium vessel | |
| CN204359928U (en) | A kind of intelligent electric energy meter Auto-Test System | |
| CN204214477U (en) | A kind of solenoid type superconducting coil measurement mechanism | |
| CN203085029U (en) | Electric heater having function of different power distribution simulation | |
| CN205157744U (en) | Quick detecting system of lithium cell self discharge | |
| CN202433436U (en) | Current measuring system of electric furnace | |
| CN103630193A (en) | Liquid level measuring instrument | |
| CN103995556B (en) | A kind of can the heat load of regulating power and method continuously | |
| CN203643870U (en) | Nonmagnetic heating temperature control system | |
| CN204577112U (en) | The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies | |
| CN203786264U (en) | Temperature rise test loop of low voltage switchgear assembly | |
| CN203205197U (en) | Water cooling reactor | |
| CN206147001U (en) | 10kV joins in marriage net height and presses metering device based on electronic type sensor | |
| Zhou et al. | Mock-up qualification and prototype manufacture for ITER current leads | |
| CN110083905A (en) | A kind of hot(test)-spot temperature analysis method of disconnecting switch dynamic compatibilization | |
| CN202838076U (en) | Cable heat cycle test voltage controlled power source measuring and controlling device | |
| CN204441080U (en) | A kind of low-voltage open type current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20201217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |