CN206132502U - Experimental linkage protection system of stress corrosion - Google Patents
Experimental linkage protection system of stress corrosion Download PDFInfo
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- CN206132502U CN206132502U CN201621165329.4U CN201621165329U CN206132502U CN 206132502 U CN206132502 U CN 206132502U CN 201621165329 U CN201621165329 U CN 201621165329U CN 206132502 U CN206132502 U CN 206132502U
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Abstract
The utility model provides an experimental linkage protection system of stress corrosion has carried out electrical connection between each unit of testing system, every unit has set up inputoutput port, and mutual detection achievement state between the unit at the corresponding state of output port output, triggers other units that are connected and protects the action after a certain unit goes wrong, allow the high -pressure pump to start after the circulating pump starts, prevent the high -pressure pump suction, permit to start the high -pressure pump after detecting the cooling rivers, prevent to test the high temperature steam entering normal atmospheric temperature return circuit part that the cauldron circulated out, the high -pressure pump starts the back and allows the heating of experiment cauldron, does not have liquid medium and the dry combustion method in preventing to test the cauldron, the high -pressure pump in the super temperature overpressure protection post -trigger water chemical circulation return circuit of experiment cauldron unit stops the operation, prevents that pressure from continuing to rise. Carry out electric hookup with each unit, realize that the protection that links of the relevant unit in unusual back appears in a certain function, avoids becoming invalid or the emergence of the dangerous condition.
Description
Technical field
This utility model is related to stress corrosion (cracking) test technology, more particularly to a kind of stress corrosion (cracking) test linkage protection system
System.
Background technology
When stress corrosion (cracking) test system carries out testing of materials, test duration run time is short then several days, it is long then up to the several months or
Several years, in equipment running process, it is difficult to carry out round-the-clock manual monitoring, conventional pilot system each unit works independently, at certain
Other units cannot link protection after individual unit goes wrong, and to equipment and environment potential safety hazard is brought.
Existing stress corrosion (cracking) test equipment, basic independent operating, needs to be accomplished manually respective unit between each unit
Operation, such as TT＆C system judges that transmission is ceased and desisted order and gives stress loading main frame after the broken type of sample, and test kettle computer heating control with
Water chemistry closed circuit be accomplished by artificial operation carry out it is out of service.There are two kinds of situations in actual use：
One be test normal termination situation, Testing Software determine off-test condition reach or break type condition expire
Foot, sends commands to stress loading main frame and stops movement, now tests kettle unit and water chemistry closed circuit unit can not be timely
Obtain test be over information and continue to run with, can only manual operation it is out of service, cause additional energy source consumption and test when
Between efficiency reduce；
Two is the situation that some function of each unit breaks down, concrete to include again：(1) in water chemistry closed circuit
Water tank is provided with high-low water level detection, in running, if somewhere seepage in loop, can cause low-water alarm and stop
Circulating pump and high-pressure pump operating in loop, media environment stops circulation in experiment kettle, and pressure can not keep in kettle, experimental enviroment
Condition is destroyed, and needs termination test, but stress loading main computer unit and experiment kettle unit continue to operation；(2) kettle unit bag is tested
Containing two parts：Pressure in temperature control instrument control temperature in the kettle, manometer monitoring kettle, sets when temperature, pressure measurement data exceed
The temperature bound put or after the pressure bound scope for arranging, can automatically cut off experiment kettle heating, this exception occur
Situation test should stop, but water chemistry closed circuit unit is continued to run with；(3) water chemistry closed circuit unit is followed to testing in kettle
The superheated vapor that ring goes out returns to room temperature loop feature after must cooling down, existing equipment is not detected to cooling water current, works as cooling
Water cut or current are too small, and superheated vapor cannot be cooled back to room temperature loop feature, cause parts damages；(4) water chemistry
In closed circuit, high-pressure pump Front-end Design has solution buffering filter, and the solution in water tank is squeezed into into solution after circulation pump startup
Buffering filter, for high-pressure pump suction, existing equipment high-pressure pump and circulating pump are independent startups, exist circulating pump it is not actuated and
The situation of high-pressure pump can be started, high-pressure pump can cause to damage because of suction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of stress corrosion (cracking) test linkage protection system, by each list
Unit is electrically coupled, and realizes that a certain function unit related after exception occurs and carries out linkage protection, it is to avoid failure is dangerous
Situation occurs.
To solve the above problems, the utility model proposes a kind of stress corrosion (cracking) test linkage protection system, including：
Stress loading test unit, for the control of test, it has the computer heating control for exporting heating keying signal
Output port；
Experiment kettle unit, with temperature control device and voltage-controlled devices；Experiment kettle unit has to receive high pressure pump startup letter
Number high pressure pump startup input and connect the computer heating control input of the computer heating control output port；Temperature control device is in institute
Heat to testing kettle when stating heating keying signal and effective high pressure pump activation signal；Experiment kettle unit also has output temperature
The temperature, pressure protection outfan of degree pressure protection output signal, the temperature, pressure protects output signal in temperature control device or pressure
Control equipment institute measured value is changed into invalid when transfiniting；
Water chemistry closed circuit unit, with the circulation line for connecting the experiment kettle, is provided with the circulation line
Water storage box, circulating pump, high-pressure pump, in the water storage box liquid level detection device is provided with；The circulating pump is according to liquid level detection device
The liquid level low signal that detects and close；There is cooling circuit, cooling circuit is provided with current detection dress on the circulation line
Put, carry out generating effective cooling water detection signal when normal cooling works in cooling circuit；Water chemistry closed circuit unit has
There is the temperature, pressure protection input for receiving temperature, pressure protection output signal, the high-pressure pump is only exported in temperature, pressure protection
Signal is effective, the circulating pump allows to start when being in starting state and effective cooling water detection signal, generates during startup effective
High pressure pump activation signal, otherwise close, water chemistry closed circuit unit also has the output high pressure pump activation signal and connects
It is connected to the high pressure pump startup outfan of high pressure pump startup input.
According to one embodiment of the present utility model, the experiment kettle unit includes：
Heating starting circuit, opens including the computer heating control input, high-pressure pump being connected between supply voltage and ground
Dynamic input, heater switch and the first relay；The computer heating control input receives effectively heating keying signal and height
When press pump startup input receives effective high pressure pump activation signal, the first relay output if the heater switch is turned on
Heating starting signal, otherwise output heating shutdown signal；
Temperature, pressure protects output control circuit, including the temperature control device, the voltage-controlled devices, the second relay and institute
State temperature, pressure protection outfan；The temperature control device receives heating starting signal and is heated；The temperature control device inspection
Heating-up temperature is surveyed, the normally-closed contact of its protection outfan disconnects in overtemperature, otherwise closes；The protection output of the voltage-controlled devices
The protection outfan of the end series winding temperature control device, the voltage-controlled devices make the normally closed of the protection outfan of voltage-controlled devices in superpressure
When disconnecting the normally-closed contact of the protection outfan of temperature control device when contact disconnects or in temperature control device overtemperature so that connection
Second relay power-off, so as to the temperature, pressure protection outfan being connected with the second relay output end exports invalid temperature
Degree pressure protection output signal, otherwise exports effective temperature, pressure protection output signal.
According to one embodiment of the present utility model, the temperature control device includes：Temperature control instrument, hot plate silk and
Thermocouple, the control output end connection solid-state relay of the temperature control instrument, solid-state relay is added by the first relay
The overtemperture control of thermal starting signal and temperature control instrument and start or turn off hot plate silk；Temperature control instrument is by detection
Thermocouple carries out temperature control regulation to hot plate silk, and in overtemperature, the protection outfan of the temperature control instrument is normally closed
Contact disconnect and control output end output low level close solid-state relay, otherwise protect outfan normally-closed contact closure and
The normal control and regulation signal of control output end output.
According to one embodiment of the present utility model, the voltage-controlled devices include pressure measuring instruments and the pressure being connected with each other
Force transducer, the protection outfan of the pressure measuring instruments connects the protection outfan of the temperature control instrument；The pressure
Force measuring instrument detects the pressure of the pressure transducer, and its protection outfan normally-closed contact disconnects in pressure superpressure, no
Then, outfan normally-closed contact closure is protected.
According to one embodiment of the present utility model, the water chemistry closed circuit unit includes that high-pressure pump opens and closes circuit,
Including：
3rd relay, output signal is effective in temperature, pressure protection, the circulating pump is in starting state and cooling water
When detection signal is effective, output allows the high level of high pressure pump startup；
High-pressure pump open-close on-off and the 4th relay；The high-pressure pump open-close on-off be connected to the 3rd relay and the 4th after
Between electrical equipment, when the high level of the 3rd relay is received, if controlled conducting, cause the 4th relay by electricity, so as to
The high pressure pump startup outfan of the 4th relay output end connection exports effective high pressure pump activation signal, if the high-pressure pump is opened
Make and break is closed controlled closing or receives the low level of the 3rd relay, then the 4th relay power-off is caused, so as to high pressure pump startup
Outfan exports invalid high pressure pump activation signal.
According to one embodiment of the present utility model, high-pressure pump opens and closes circuit also includes cooling water detection switch, circulating pump
Status switch, liquid level low switch；
The cooling water detection switch and temperature, pressure protect input to be connected on touching for supply voltage and the 3rd relay
Between point；
The circulating pump status switch and liquid level low switch are connected on the control end of the supply voltage and the 3rd relay
Between；
When circulating pump status switch and liquid level low switch are all closed, the closing of contact of the 3rd relay is controlled, described
When cooling water detection switch is closed and temperature, pressure protection input receives effective temperature, pressure protection signal, high-pressure pump
Activate switch closure will start high-pressure pump, and high pressure pump startup output signal is effective.
According to one embodiment of the present utility model, the water chemistry closed circuit unit also has cooling water detection output
End, when cooling circuit is enabled, by cooling water detection output cooling water detection signal is exported；
Stress loading test unit also has cooling water detection input, connects the cooling water detection output, to
Process and/or show the cooling water detection signal.
According to one embodiment of the present utility model, the stress loading test unit includes：
Stress loading device, the stress loading and test for sample is performed；
Measure and control device, for being controlled according to instruction to the stress loading device, goes back the heating of Control release kettle unit
Keying.
According to one embodiment of the present utility model, the stress loading test unit is logical by network interface connection with computer
Letter, experiment kettle unit and water chemistry closed circuit unit are by serial ports and compunication.
According to one embodiment of the present utility model, discharge of the Water flow detector in cooling circuit judges
Whether cooling circuit enables, and invalid cooling water detection signal is generated in condensate water cutoff or too small cooling water flow, triggering
High-pressure pump shuts down.
After above-mentioned technical proposal, this utility model has the advantages that compared to existing technology：
This utility model is electrically connected between each unit of pilot system, and each unit is provided with input and output
Port, mutually detects that working condition, some unit export corresponding state, triggering after going wrong in output port between unit
Other units being connected carry out protection act；
High pressure pump startup is allowed after circulation pump startup, high-pressure pump suction is prevented；Detect allows to start height after cooling current
Press pump, prevents the superheated vapor that experiment kettle is recycled from entering room temperature loop feature；Allow experiment kettle to heat after high pressure pump startup, prevent
Only test the dry combustion method without liquid medium in kettle；The high pressure of water chemistry closed circuit is triggered after the over-temp and over-pressure protection of experiment kettle unit
Pump shuts down, and prevents pressure from continuing to raise.
Description of the drawings
Fig. 1 is the structured flowchart of the stress corrosion (cracking) test linkage protection system of the embodiment of this utility model one；
Fig. 2 is the partial circuit theory structure schematic diagram of the water chemistry closed circuit unit of the embodiment of this utility model one；
Fig. 3 is the circulating pipeline structure schematic diagram of the water chemistry closed circuit unit of the embodiment of this utility model one；
Fig. 4 is the circuit principle structure schematic diagram of the experiment kettle unit of the embodiment of this utility model one.
Specific embodiment
It is understandable to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.
Elaborate many details in order to fully understand this utility model in the following description.But this practicality is new
Type can be implemented with being much different from alternate manner described here, and those skilled in the art can be new without prejudice to this practicality
Similar popularization is done in the case of type intension, therefore this utility model is not embodied as being limited by following public.
Referring to Fig. 1, the stress corrosion (cracking) test linkage protection system of this utility model embodiment, including：Stress loading is tested
Unit 1, experiment kettle unit 2 and water chemistry closed circuit unit 3.This is certainly not limited to, other work(can also be included as needed
Can equipment.It is electrically connected between stress loading test unit 1, experiment kettle unit 2 and water chemistry closed circuit unit 3, a certain
After exception occurs in function (part, equipment or circuit), related unit carries out linkage protection, prevents failure or dangerous situation from sending out
It is raw, can also mitigate artificial burden.
Stress loading test unit 1 is used for the control tested, can be with for the concrete control content and mode of test
It is existing control content and mode, for example, can includes：Stress loading, the test space movement behaviour for completing tested test specimens
Make, the broken type of sample judges and out of service, weighted platform moving range detects and limit protection etc..Stress loading test unit 1
With the computer heating control outfan X1 to export heating keying signal, stress loading test unit 1 is by heating keying signal
Control release kettle unit 2, heating keying signal effectively, then Control release kettle unit 2 allow heating (premised on condition, then meet
Can heat when other impose a condition), heating keying signal is invalid, then Control release kettle unit 2 disconnects heating.
Experiment kettle unit 2 has the high pressure pump startup input X5 to receive high pressure pump activation signal, when high-pressure pump is opened
When dynamic, high pressure pump activation signal effectively, the startup of high-pressure pump by experiment kettle unit 2 temperature, pressure protection outfan X4 controls or
Person is controlled or by manually controlling by other control systems, specifically without limitation.Experiment kettle unit 2 also has computer heating control
Input X3, connects the computer heating control outfan X1 of stress loading test unit 1, receives heating keying signal.
Experiment kettle unit 2 has temperature control device and voltage-controlled devices, and the temperature control for carrying out test(ing) medium environment is adjusted
And pressure monitoring, experiment kettle is also included certainly, experiment kettle provides corrosive medium environment to tested test specimens.Temperature control device is adding
When hot keying signal and effective high pressure pump activation signal, heat to testing kettle, wherein any one invalidating signal all breaks
Open heating.Experiment kettle is heated premised on the startup of high-pressure pump, prevent from testing kettle dry combustion method or water chemistry closed circuit it is abnormal and
Experiment kettle continues to heat.
Temperature control device and voltage-controlled devices are also respectively used for measuring the temperature and pressure of the corrosive medium of experiment kettle, generate temperature
Pressure protects output signal.Temperature, pressure protection output signal is changed into nothing in temperature control device or voltage-controlled devices institute measured value when transfiniting
Effect.Also there is experiment kettle unit 2 temperature, pressure to protect outfan X4, output temperature pressure protection output signal.Temperature, pressure is protected
When shield output signal is effective, illustrate that the temperature and pressure of corrosive medium environment all without departing from set point, then can control water
Chemical cycle circuit units 3 make high pressure pump startup, otherwise trigger water chemistry closed circuit unit 3 and disconnect work, carry out protection dynamic
Make.
Referring to Fig. 3, water chemistry closed circuit unit 3 realizes the loop control of experiment kettle internal corrosion medium, real with connection
The circulation line of kettle is tested, water storage box, circulating pump MG1, high-pressure pump M are provided with circulation line, Level Detection is provided with water storage box
Device, certainly, is also provided with other devices or part, such as valve such as ball valve, check valve on circulation line, concrete connection
Relation may refer to Fig. 3, will not be described here.It (is high pressure in figure that circulating pump MG1 preferably compares high-pressure pump M on circulation line
Dosing pump) closer to the outfan of water storage box.Circulating pump MG1 provides the power of circulation line water circulation, and high-pressure pump M is experiment kettle
Interior media environment provides high pressure.
Water level height in liquid level detection device detection water storage box, liquid level low signal is generated when detecting liquid level and being low, is used
Quit work to trigger circulating pump, only when liquid level is normal, circulating pump MG1 is allowed to start work, and opening circulating pump can open
It is dynamic, again may be by other control systems control or by manually controlling, specifically without limitation.
Referring to Fig. 1 and Fig. 3, also there is cooling circuit on circulation line.Superheated vapor (vaporous Jie that experiment kettle is recycled
Matter) the room temperature loop feature of circulation line need to be returned after the cooling of cooling circuit, if not enabling cooling circuit, without
Overcooled superheated vapor is returned directly to room temperature loop feature, can cause parts damages.Thus in this utility model embodiment, it is cold
But loop is provided with Water flow detector, and effective cooling water detection signal is generated when cooling circuit is enabled, and is cooling back
Invalid cooling water detection signal is generated during the not enabled of road.Cooling circuit enable refer in cooling circuit can normal stream it is supercool
But water and cooling down high-temperature steam.
Specifically, the discharge that Water flow detector can be in cooling circuit judges whether cooling circuit enables,
Invalid cooling water detection signal is generated when condensate water cutoff or too small cooling water flow, triggering high-pressure pump shuts down.High pressure
The startup of pump M by cooling water it is normal premised on, prevent from testing the superheated vapor that recycles of kettle entering room temperature loop feature.Cool back
Heat exchanger and cooler can be provided with road to realize liquefying, cool down.
There is water chemistry closed circuit unit 3 temperature, pressure to protect input X6, the temperature, pressure of connection experiment kettle unit 2
Protection outfan X4, and receive temperature, pressure protection output signal.High-pressure pump M only temperature, pressure protection output signal effectively,
Allowing to start when circulating pump MG1 is in starting state and effective cooling water detection signal (allows the state for starting to be startup
Or non-started state, as long as but in non-started state when directly open the startup that high-pressure pump M is capable of achieving high-pressure pump, do not allow
High-pressure pump M is then opened during startup also will not be started), otherwise can only close.Generally speaking, the startup of high-pressure pump M is with circulating pump MG1
Premised on startup, it is therefore prevented that high-pressure pump M suctions；The startup of high-pressure pump M by cooling water it is normal premised on, prevent test kettle recycle
Superheated vapor enter room temperature loop feature；High-pressure pump M operatings are automatically stopped after the overtemperature of experiment kettle unit 2, superpressure, experiment is prevented
Pressure continues to raise in kettle.
High-pressure pump M generates effective high pressure pump activation signal when starting, water chemistry closed circuit unit 3 also has high-pressure pump
Start outfan X7, be connected to the high pressure pump startup input X5 of experiment kettle unit 2, and export high pressure pump activation signal to experiment
Kettle unit 2.Premised on experiment kettle heating is started by high-pressure pump M, prevent from testing kettle dry combustion method or water chemistry closed circuit it is abnormal and
Experiment kettle continues to heat.
In one embodiment, referring to Fig. 4, experiment kettle unit includes：Heating starting circuit, temperature, pressure protection output control
Circuit processed.
Heating starting circuit includes computer heating control input X3, the high-pressure pump being connected between supply voltage DC24V and ground
Start input X5, heater switch K2, K3 and the first relay RL3.Wherein, disconnect when heater switch K2 is closed for heating, plus
Close when thermal switch K3 is heating starting, can be by external device (ED) control or the system control or artificial control.Computer heating control
Input X3 receives effectively heating keying signal and high pressure pump startup input X5 receives effective high pressure pump startup letter
Number when, if conducting heater switch K2, K3, export heating starting signal, otherwise output heating shutdown signal.Conducting heater switch
K2, K3, supply voltage DC24V is transferred in the control end of the first relay RL3, controls the closing of contact of the first relay RL3,
First relay RL3 exports heating starting signal, otherwise output heating shutdown signal.
The input of this utility model embodiment or the series connection of outfan refer to that the two ends of terminal are concatenated in circuit, and
The conducting circuit part in series, open-circuit line part in series in invalidating signal when signal is effective.
Temperature, pressure protection output control circuit includes temperature control device, voltage-controlled devices, the second relay RL5 and temperature, pressure
Protection outfan X4.Temperature control device receives the heating starting signal that heating starting circuit passes over and is heated.Temperature control
Equipment detects heating-up temperature, and in heating-up temperature overtemperature, the protection outfan normally-closed contact of temperature control device disconnects, and otherwise closes；
Voltage-controlled devices detect pressure medium, and the protection outfan of voltage-controlled devices connects the protection outfan of temperature control device, and voltage-controlled devices exist
Protection outfan normally-closed contact is disconnected during the pressure signal superpressure for detecting so that the second of connection voltage-controlled devices protection outfan
Relay RL5 power-off, so as to the temperature, pressure protection outfan X4 being connected with the second relay RL5 outfans exports invalid temperature
Degree pressure protection output signal, otherwise exports effective temperature, pressure protection output signal.
Temperature control device includes：Temperature control instrument, hot plate silk and thermocouple, the control output end of temperature control instrument
Connection solid-state relay SSR1, SSR2, SSR3, solid-state relay SSR1, SSR2, SSR3 are believed by the heating starting of the first relay
Number and temperature control instrument overtemperture control and start or turn off hot plate silk, solid-state relay SSR1, SSR2, SSR3 with temperature
Degree control instrument, the connection of the first relay and control mode can as needed depending on, may refer to Fig. 4, or often
Rule connected mode；Temperature control instrument carries out temperature control regulation by detecting thermocouple to hot plate silk, the temperature in overtemperature
The normally-closed contact of the protection outfan of degree control instrument disconnects and control output end output low level closes solid-state relay, no
Then protect the normally-closed contact closure and the normal control and regulation signal of control output end output of outfan.
Voltage-controlled devices include pressure measuring instruments and the pressure transducer being connected with each other, the protection output of pressure measuring instruments
The protection outfan of end connection temperature control instrument, pressure measuring instruments detects the pressure of pressure transducer, and in pressure superpressure
When protection outfan normally-closed contact disconnect, otherwise close.
In a specific embodiment, test kettle to be heated by the electric furnace heating wire for being enclosed in outside, the control and regulation of temperature
Controlled to adjust by artificial intelligence's temperature control instrument, while pressure, temperature control instrument in pressure transducer and pressure measuring instruments measurement kettle
Upper and lower limit protection numerical value can be set with pressure measuring instruments, when temperature in the kettle or pressure are beyond the protection domain for arranging, instrument
The cut-out heating of table output port, is protected.
Referring to Fig. 2, in one embodiment, water chemistry closed circuit unit includes that high-pressure pump opens and closes circuit.High-pressure pump is opened
Closed circuit can include：3rd relay RL2, high-pressure pump open-close on-off X13, X14 and the 4th relay RL1.
3rd relay RL2 temperature, pressure protection output signal effectively, circulating pump MG1 is in starting state and cooling water
When detection signal is effective, output allows the high level that high-pressure pump M starts.In the state of allowing high-pressure pump M to start, high-pressure pump is opened
M is capable of achieving the startup of high-pressure pump M and (in this utility model embodiment, starts and be only real entrance working state of system, beat
Open simply open pump itself), otherwise, opening can not start high-pressure pump M.
High-pressure pump open-close on-off (X13, X14) is connected between the 3rd relay RL2 and the 4th relay RL1, is being received
To the 3rd relay RL2 high level when, if controlled conducting, cause the 4th relay RL1 by electricity, so as to the 4th relay
The high pressure pump startup outfan X7 of RL1 outfans connection exports effective high pressure pump activation signal, if high-pressure pump open-close on-off is received
The low level of the 3rd relay RL2 is closed or received in control, then the 4th relay RL1 power-off is caused, so as to high pressure pump startup is defeated
Go out to hold X7 to export invalid high pressure pump activation signal.
Specifically, high-pressure pump opens and closes circuit also includes that cooling water detection switch X12, circulating pump status switch X15, liquid level are low
Switch X16.Cooling water detection switch X12 is connected on supply voltage DC24V and the 3rd relay with temperature, pressure protection input X6
Between the contact of device RL2；Circulating pump status switch X15 and liquid level low switch X16 are connected on the supply voltage DC24V and the 3rd
Between the control end of relay RL2；When circulating pump status switch X15 and liquid level low switch X16 are closed, the 3rd relay is controlled
The closing of contact of device RL2, closes in cooling water detection switch X12 and temperature, pressure protection input X6 receives effective temperature
During degree pressure protection signal, supply voltage DC24V is transferred to into one end of high-pressure pump open-close on-off.
In Fig. 4, instrument 1, instrument 2 (temperature control instrument) 6,7 feet be switching value warning output pin, normal work shape
6,7 feet are normally closed signal under state, and when temperature is beyond the upper and lower limit range alarm for arranging, 6,7 foot signals disconnect.(the pressure of instrument 3
Force measuring instrument) 6,7 feet be switching value warning output pin, 6,7 feet are normally closed signal under normal operating conditions, when pressure it is super
When going out the upper and lower limit range alarm of setting, 6,7 foot signals disconnect.As seen from Figure 4, temperature or during pressure limit, the He of instrument 2
The warning output pin 6,7 of instrument 3 disconnects, the second relay RL5 power-off, cut-out be connected to solid-state relay SSR1, SSR2,
The thermal control signals of SSR3, disconnect heating, while temperature, pressure protection outfan X4 disconnects.In FIG, kettle unit is tested
X4 is connected to the X6 of water chemistry closed circuit in Fig. 2, finds out from Fig. 2 circuits, and X6 disconnects will stop high-pressure pump operating.In experiment
Kettle unit 2 occurs after overtemperature, superpressure, is automatically stopped high-pressure pump M operatings, prevents pressure from continuing to raise.
In Fig. 3, circulating pump MG1 extracts out the solution in water storage box, high-pressure pump M, another road is supplied all the way and supplies feedwater chemistry
Electrode is used for pH value determination, electrical conductivity, dissolved oxygen, dissolved hydrogen etc., in water chemistry closed circuit, first open the circulation pump MG1, then
High-pressure pump M is opened, high-pressure pump M suctions are prevented.In fig. 2, liquid level low switch X16 closures when having solution, circulation switch pump X15 is opened
The normally opened contact closure of dynamic circulating pump MG1, the 3rd relay RL2, high-pressure pump M starts to be allowed.When circulating pump MG1 does not start,
3rd relay RL2 not adhesives, are disconnected high-pressure pump M starting-up later times, and high-pressure pump M cannot start.
Water chemistry closed circuit unit 3 also has cooling water detection output X8, when cooling circuit is enabled, by cooling
Water detection output X8 exports cooling water detection signal；Stress loading test unit 1 also has cooling water detection input X9, even
Cooling water detection output X8 is connect, to process and/or show the cooling water detection signal.
Two cooling water detection switch signals are set in system, and when there are current, switch closure signals are effective.One input
To TT＆C system, interface prompt and respective handling are carried out；Another signal control high-pressure pump M start and stop, when cooling water detection switch
Allow to start high-pressure pump M during closure.Stop high-pressure pump M when without cooling water to start, it is therefore prevented that from experiment when high-pressure pump M operates
The superheated vapor that kettle is recycled does not cause parts damages through cooling into room temperature loop feature.
Stress loading test unit 1 includes：Stress loading device, the stress loading and test for sample is performed；Observing and controlling
Device, is controlled for correspondence force loading device according to instruction, goes back the keying of the heating of Control release kettle unit 2.Instruction can be with
It is existing control program, in being stored in measure and control device, operation can control.
Optionally, stress loading test unit 1 is communicated with computer by network interface connection, tests kettle unit 2 and water chemistry
Closed circuit unit 3 is by serial ports and compunication.
Circulation is caused between stress loading test unit 1, experiment kettle unit 2 and each unit of water chemistry closed circuit unit 3
Linkage protection between pump MG1, high-pressure pump M, heater switch etc., reduces potential safety hazard.
It is appreciated that Fig. 1-4 is only as an example, actual to make certain change as needed, such as switch changes
Move, should not be in this, as restriction.
Although this utility model is disclosed as above with preferred embodiment, it is not for limiting claim, Ren Heben
Art personnel can make possible variation and modification in without departing from spirit and scope of the present utility model, therefore
The scope that protection domain of the present utility model should be defined by this utility model claim is defined.
Claims (10)
1. a kind of stress corrosion (cracking) test links protection system, it is characterised in that include：
Stress loading test unit, for the control of test, it has to export the computer heating control output of heating keying signal
Port；
Experiment kettle unit, with temperature control device and voltage-controlled devices；Experiment kettle unit has to receive high pressure pump activation signal
The computer heating control input of high pressure pump startup input and the connection computer heating control output port；Temperature control device adds described
Heat to testing kettle when hot keying signal and effective high pressure pump activation signal；Experiment kettle unit also has output temperature pressure
The temperature, pressure protection outfan of shield of trying hard to keep output signal, temperature, pressure protection output signal is in temperature control device or voltage-controlled sets
Standby institute measured value is changed into invalid when transfiniting；
Water chemistry closed circuit unit, with the circulation line for connecting the experiment kettle, on the circulation line water-retention is provided with
Case, circulating pump, high-pressure pump, in the water storage box liquid level detection device is provided with；The circulating pump is detected according to liquid level detection device
To liquid level low signal and close；There is cooling circuit, cooling circuit is provided with Water flow detector on the circulation line,
Cooling circuit carries out generating effective cooling water detection signal when normal cooling works；Water chemistry closed circuit unit has reception
The temperature, pressure protection input of temperature, pressure protection output signal, the high-pressure pump only has in temperature, pressure protection output signal
Effect, the circulating pump allow to start when being in starting state and effective cooling water detection signal, and effective high pressure is generated during startup
Pump activation signal, otherwise closes, and water chemistry closed circuit unit also has the output high pressure pump activation signal and is connected to height
Press pump starts the high pressure pump startup outfan of input.
2. stress corrosion (cracking) test as claimed in claim 1 links protection system, it is characterised in that the experiment kettle unit bag
Include：
Heating starting circuit, it is defeated including the computer heating control input, high pressure pump startup being connected between supply voltage and ground
Enter end, heater switch and the first relay；The computer heating control input receives effectively heating keying signal and high-pressure pump
When startup input receives effective high pressure pump activation signal, the first relay output heating if the heater switch is turned on
Enabling signal, otherwise output heating shutdown signal；
Temperature, pressure protects output control circuit, including the temperature control device, the voltage-controlled devices, the second relay and the temperature
Degree pressure protection outfan；The temperature control device detects heating-up temperature, the normally-closed contact of its normally-closed contact outfan in overtemperature
Disconnect, otherwise close；The protection outfan of the voltage-controlled devices is contacted the protection outfan of the temperature control device, described voltage-controlled to set
When the normally-closed contact of the standby protection outfan for making voltage-controlled devices in superpressure disconnects or make the guarantor of temperature control device in temperature control device overtemperature
When the normally-closed contact of shield outfan disconnects so that the second relay power-off of connection, so as to be connected with the second relay output end
Temperature, pressure protection outfan export invalid temperature, pressure protection output signal, otherwise export effective temperature, pressure
Protection output signal.
3. stress corrosion (cracking) test as claimed in claim 2 links protection system, it is characterised in that the temperature control device includes：
Temperature control instrument, hot plate silk and thermocouple, the control output end connection solid-state relay of the temperature control instrument, Gu
State relay is started by the heating starting signal of the first relay and the overtemperture control of temperature control instrument or is turned off plus thermoelectricity
Stove silk；Temperature control instrument carries out temperature control regulation by detecting thermocouple to hot plate silk, the temperature in overtemperature
The normally-closed contact of the protection outfan of control instrument disconnects and control output end output low level closes solid-state relay, otherwise
The normally-closed contact closure and the normal control and regulation signal of control output end output of protection outfan.
4. stress corrosion (cracking) test as claimed in claim 3 links protection system, it is characterised in that the voltage-controlled devices include phase
The pressure measuring instruments for connecting and pressure transducer, the protection outfan of the pressure measuring instruments connects the temperature control
The protection outfan of instrument；The pressure measuring instruments detects the pressure of the pressure transducer, and its guarantor in pressure superpressure
Shield outfan normally-closed contact disconnects, otherwise, protection outfan normally-closed contact closure.
5. stress corrosion (cracking) test as claimed in claim 1 or 2 links protection system, it is characterised in that the water chemistry circulation
Circuit units include that high-pressure pump opens and closes circuit, including：
3rd relay, in temperature, pressure protection, output signal is effective, the circulating pump is in starting state and cooling water is detected
When signal is effective, output allows the high level of high pressure pump startup；
High-pressure pump open-close on-off and the 4th relay；The high-pressure pump open-close on-off is connected to the 3rd relay and the 4th relay
Between, when the high level of the 3rd relay is received, if controlled conducting, the 4th relay is caused by electricity, so as to the 4th
The high pressure pump startup outfan of relay output end connection exports effective high pressure pump activation signal, if the high-pressure pump is opened and closed opening
Close controlled closing or receive the low level of the 3rd relay, then cause the 4th relay power-off, so as to the output of high pressure pump startup
The invalid high pressure pump activation signal of end output.
6. stress corrosion (cracking) test as claimed in claim 5 links protection system, it is characterised in that high-pressure pump opens and closes circuit and also wraps
Include cooling water detection switch, circulating pump status switch, liquid level low switch；
The cooling water detection switch and temperature, pressure protect input be connected on supply voltage and the 3rd relay contact it
Between；
The circulating pump status switch and liquid level low switch are connected between the control end of the supply voltage and the 3rd relay；
When circulating pump status switch and liquid level low switch are all closed, the closing of contact of the 3rd relay is controlled, in the cooling
When water detection switch is closed and temperature, pressure protection input receives effective temperature, pressure protection signal, high pressure pump startup
Switch closure will start high-pressure pump, and high pressure pump startup output signal is effective.
7. stress corrosion (cracking) test as claimed in claim 1 links protection system, it is characterised in that the water chemistry closed circuit
Unit also has cooling water detection output, when cooling circuit is enabled, by cooling water detection output cooling water inspection is exported
Survey signal；
Stress loading test unit also has cooling water detection input, connects the cooling water detection output, to process
And/or the display cooling water detection signal.
8. stress corrosion (cracking) test as claimed in claim 1 links protection system, it is characterised in that the stress loading test sheet
Unit includes：
Stress loading device, the stress loading and test for sample is performed；
Measure and control device, for being controlled according to instruction to the stress loading device, goes back opening for Control release kettle unit heating
Close.
9. stress corrosion (cracking) test as claimed in claim 8 links protection system, it is characterised in that the stress loading test sheet
Unit is communicated with computer by network interface connection, and experiment kettle unit and water chemistry closed circuit unit are led to by serial ports with computer
Letter.
10. stress corrosion (cracking) test as claimed in claim 1 links protection system, it is characterised in that the Water flow detector
Discharge in cooling circuit judges whether cooling circuit enables, and generates in condensate water cutoff or too small cooling water flow
Invalid cooling water detection signal, triggering high-pressure pump shuts down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165329.4U CN206132502U (en) | 2016-10-25 | 2016-10-25 | Experimental linkage protection system of stress corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165329.4U CN206132502U (en) | 2016-10-25 | 2016-10-25 | Experimental linkage protection system of stress corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206132502U true CN206132502U (en) | 2017-04-26 |
Family
ID=58576745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621165329.4U Withdrawn - After Issue CN206132502U (en) | 2016-10-25 | 2016-10-25 | Experimental linkage protection system of stress corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206132502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370518A (en) * | 2016-10-25 | 2017-02-01 | 上海凯尔孚应力腐蚀试验设备有限公司 | Stress corrosion testing linkage protection system |
-
2016
- 2016-10-25 CN CN201621165329.4U patent/CN206132502U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370518A (en) * | 2016-10-25 | 2017-02-01 | 上海凯尔孚应力腐蚀试验设备有限公司 | Stress corrosion testing linkage protection system |
| CN106370518B (en) * | 2016-10-25 | 2023-04-28 | 上海凯尔孚应力腐蚀试验设备有限公司 | Stress corrosion test linkage protection system |
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