CN102721534B - Accumulator protection valve detection method - Google Patents
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- CN102721534B CN102721534B CN201110077838.7A CN201110077838A CN102721534B CN 102721534 B CN102721534 B CN 102721534B CN 201110077838 A CN201110077838 A CN 201110077838A CN 102721534 B CN102721534 B CN 102721534B
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Abstract
<b> accumulator protection valve detection method and device </b><bGreatT.Gre aT.GT thereof, this detection method </b><bGreatT.Gre aT.GT of </b><bGreatT.Gre aT.GT includes </b><bGreatT.Gre aT.GT: adjusting gas flow meter airshed and source of the gas adjusting module output pressure value, computing machine and testing software run control I/O module automatically, simultaneously by vent valve, the emptying residual gas pressure of inlet open, be arranged on relief valve connection by safety valve to be detected again, complete one-time detection action by computing machine automatic operation, duplicate detection operates, and contrast circulating exhaust process also records detection record product labelling.This device includes computing machine and testing software, signal wire, A/D module, vent valve, gas meter, pressure transmitter module, four-way interface, shell, relief valve connection, gas admittance valve, source of the gas adjusting module, tracheae, power lead, power module, I/O module.The present invention can detect the accurate parameters of accumulator protection valve intuitively, producing, checking accumulator protection valve product quality to provide reliable detection means and equipment for improving accumulator protection valve.</b>
Description
Technical field
the present invention relates to a kind of accumulator protection valve automated detection method and device thereof, particularly relate to a kind ofly detect the valve opening pressure of safety valve by computer controlled automatic, valve closing presses and the detection method of equilibrium pressure and device thereof.
Background technology
in accumulator battery production, safety valve element is very critical elements, the cracking pressure of safety valve requires within the scope of 10 ~ 49KPA, when battery internal gas pressure is elevated to 10 ~ 49KPA, safety-valve is automatically opened and is exhausted, when battery internal gas pressure drops to below 10KPA, safety-valve is closed automatically, ensures malleation certain in battery.
to the detection of safety valve, in producing at present, there are two kinds of detection methods: (one) adopts manual inspection method; Pointer rain glass, safety valve, hand air pump threeway are connected, water put into by safety valve, Manual inflating, and range estimation produces 2 atmospheric pressure values when bubble and bubble stopping, and the method being respectively valve opening pressure and valve closing pressure detects.
its weak point is, when requiring that workman detects, trick coordinates artificial reading, has personal error, and easily cause test tired in addition, degree of changing into is low automatically, and pick-up unit is too simple, lacks verification standard.
(2) mercury slug and electric switch detection method is adopted; Mercury slug and electric switch is adopted to check the open and close valve pressure method of safety valve, with threeway, safety valve, mercury slug, source of the gas are linked together, 2 electronic switches are arranged within the scope of the alarm up and down of mercury slug, restriction Investigation on safety valve pressure and valve closing pressure, detect mercury slug air pressure change, this kind of detection can only identify open and close valve pressure whether over range, and the exhaust process for safety valve cannot accomplish meticulous detection.
at present, these two kinds of methods of prior art lack contrast means for repeatedly duplicate detection, and press lack detection for safety valve equilibrium pressure further in research for the open and close valve of safety valve, and equilibrium pressure is also to safety-valve screen resilience and the main determining factor repeating switching performance, therefore, people urgently can develop a kind of detection method and device thereof of valve opening pressure, valve closing pressure and the equilibrium pressure that can realize comprising safety valve.
Summary of the invention
object of the present invention is just to solve finer detection in safety valve detection, provides a kind of more scientific accumulator protection valve detection method and device to improve the product quality of safety valve.This safety valve detection side genealogy of law that the present invention provides adopts computer control software, the communication technology, detection technique knot and accumulator protection valve production technology and battery-operated principle and service experience phase thereof to draw.
this accumulator protection valve detection method that the present invention provides, be characterized in: 1. first adjusting gas flow meter normal through time be 10ml/min airshed, source of the gas adjusting module is regulated to export as 200KPA atmospheric pressure value, computing machine and testing software run control I/O module automatically, simultaneously by vent valve, inlet open, emptying residual gas pressure, ready, 2. safety valve to be detected is arranged on relief valve connection, completes one-time detection by computing machine automatic operation, action is as follows: computing machine and testing software are first by closing vent valve, real-time reading record A/D module output valve, converse four-way interface internal gas pressure value, now atmospheric pressure value is raising always, if when reducing suddenly, record flex point place atmospheric pressure value, this atmospheric pressure value is valve opening pressure, and continue to detect and record, atmospheric pressure value continues to decline fast, when atmospheric pressure value kept for 2 seconds constant, now recording this atmospheric pressure value is equilibrium pressure, at this moment gas admittance valve is closed, air pressure declines always, when air pressure is down to change slowly, and more than recording this air pressure during 2min, for valve closing pressure, after record, open vent valve, complete and once test, repeat aforesaid operations and can carry out repeated test, contrast circulating exhaust process, and record detection record product labelling.
this accumulator safety valve detecting apparatus that the present invention provides, is characterized in including computing machine and testing software, signal wire, A/D module, vent valve, gas meter, pressure transmitter module, four-way interface, shell, relief valve connection, gas admittance valve, source of the gas adjusting module, tracheae, power lead, power module, I/O module, its Computer and testing software are by signal wire and A/D module and I/O model calling, A/D module is by signal wire Bonding pressure transmitter module, pressure transmitter module is by tracheae to being connected on a mouth of four-way interface, and its excess-three of four-way interface interface receives gas meter outlet respectively, vent valve import and relief valve connection export, vent valve outlet is straight-through outside, vent valve control section is linked on I/O module by signal mouth by signal wire, the entrance of gas meter is received in air intake valve outlet, the import of gas admittance valve is received in the outlet of source of the gas adjusting module by tracheae, the import of source of the gas adjusting module is received on external gas source by tracheae, and power module is connected to I/O module by out-put supply line, A/D module, signal wire, A/D module, vent valve, pressure transmitter module, four-way interface, shell, gas admittance valve, source of the gas adjusting module, tracheae, power lead, power module, I/O module is installed in checkout equipment housing, relief valve connection, gas meter is arranged on checkout equipment surface of shell and forms testing apparatus, and computing machine and testing software are located at checkout equipment outside.
for better completing object of the present invention, the test software programs of described computing machine has following steps: step 1. starts software: start detection software on a computer platform; Step 2. initialization: computer software arranges I/O module, A/D module work parameter, ensures that modules duty is normal; Step 3. selects valve body kind: the safety valve kind according to test selects safety valve kind to be measured; Step 4. starts test: click and start testing button, starts software and automatically controls test process; Step 5. records air pressure: computing machine and testing software, first by closing vent valve, read in real time record A/D module output valve real, time record pressure unit become the atmospheric pressure value sent, and to show on a computer display, dash-dotted curve; Step 6. step valve opening pressure: detect valve opening pressure, according to compare air pressure be elevated to a certain degree time, the real-time atmospheric pressure value detecting the unexpected reduction occurred, the i.e. flex point of atmospheric pressure value, this place's atmospheric pressure value is valve opening pressure value, if there is flex point, and mark valve opening pressure, if there is no flex point, return in previous step 5 and continue record atmospheric pressure value; Step 7. identifies valve opening pressure: in display form acceptance of the bid note valve opening pressure value and valve opening pressure time; Step 8. records and gathers air pressure: continue real time record pressure unit and become the atmospheric pressure value sent, and show on a computer display, dash-dotted curve; Step 9. equilibrium pressure: detect equilibrium pressure, continues to detect and record, and atmospheric pressure value continues to decline fast, when atmospheric pressure value kept for 2 seconds constant, now recording this atmospheric pressure value is equilibrium pressure, if do not have equilibrium pressure to occur, returns in previous step 8 and continues record atmospheric pressure value; Step 10. identifies equilibrium pressure: in display form acceptance of the bid note equilibrium pressure value and equilibrium pressure time; Step 11. records and gathers air pressure: after closing gas admittance valve, continues real time record pressure unit and becomes the atmospheric pressure value sent, and show on a computer display, dash-dotted curve; Step 12. valve closing pressure: gather air pressure and decline always, when air pressure is down to change slowly, and more than recording this air pressure during 2min, being valve closing pressure, after record, opening vent valve, if there do not have valve closing to extrude to be existing, return in previous step 11 and continues record atmospheric pressure value; Step 13. identifies valve closing pressure: in display form acceptance of the bid note valve closing pressure value and valve closing pressure time; Step 14. loop test: whether be loop test, if loop test, turns back to the test that above-mentioned steps 5 proceeds from step 5 to step 14, until enter next step when test loop number of times is 0; Step 15. terminates test: complete test.
compared with prior art, its beneficial effect is: detect safety valve by the present invention in the present invention, can detect the accurate parameters of safety valve intuitively, producing, checking safety valve product quality to provide detection means and equipment intuitively for improving safety valve.
Accompanying drawing explanation
accompanying drawing 1, accumulator protection valve open and close valve pressure pick-up unit schematic diagram.
accompanying drawing 2, safety valve action process calibration maps.
accompanying drawing 3, software program test procedure block diagram.
Specific embodiments
be described in detail technical scheme of the present invention below in conjunction with instantiation: as shown in Fig. 1 ~ Fig. 2, this accumulator safety valve detecting apparatus includes computing machine and testing software 1, signal wire 2, A/D module 3, vent valve 4, gas meter 5, pressure transmitter module 6, four-way interface 7, shell 8, relief valve connection 9, gas admittance valve 10, source of the gas adjusting module 11, tracheae 12, power lead 13, power module 14, I/O module 15, its Computer and testing software 1 are connected with A/D module 3 and I/O module 15 by signal wire 2, A/D module 3 is by signal wire 2 Bonding pressure transmitter module 6, pressure transmitter module 6 is by tracheae 12 to being connected on a mouth of four-way interface 7, and its excess-three of four-way interface 7 interface is received gas meter 5 respectively and exported, vent valve 4 import and relief valve connection 9 export, vent valve 4 exports straight-through outside, vent valve 4 control section is linked on I/O module 15 signal port by signal wire 2, the entrance of gas meter 5 is received gas admittance valve 10 and is exported, the import of gas admittance valve 10 is received source of the gas adjusting module 11 by tracheae 12 and is exported, source of the gas adjusting module 11 import is received on external gas source by tracheae 12, and power module 14 is connected to I/O module 15 by out-put supply line 13, A/D module 3, signal wire 2, A/D module 3, vent valve 4, pressure transmitter module 6, four-way interface 7, shell 8, gas admittance valve 10, source of the gas adjusting module 11, tracheae 12, power lead 13, power module 14, I/O module 15 is installed in checkout equipment housing, relief valve connection 9, gas meter 5 is arranged on checkout equipment surface of shell and forms testing apparatus, and computing machine and testing software 1 are located at checkout equipment outside.
as shown in Figure 3, the test software programs of computing machine has following steps: step 1. starts software: start detection software on a computer platform; Step 2. initialization: computer software arranges I/O module, A/D module work parameter, ensures that modules duty is normal; Step 3. selects valve body kind: the safety valve kind according to test selects safety valve kind to be measured; Step 4. starts test: click and start testing button, starts software and automatically controls test process; Step 5. records air pressure: computing machine and testing software, first by closing vent valve, read in real time record A/D module output valve real, time record pressure unit become the atmospheric pressure value sent, and to show on a computer display, dash-dotted curve; Step 6. step valve opening pressure: detect valve opening pressure, according to compare air pressure be elevated to a certain degree time, the real-time atmospheric pressure value detecting the unexpected reduction occurred, the i.e. flex point of atmospheric pressure value, this place's atmospheric pressure value is valve opening pressure value, if there is flex point, and mark valve opening pressure, if there is no flex point, return in previous step 5 and continue record atmospheric pressure value; Step 7. identifies valve opening pressure: in display form acceptance of the bid note valve opening pressure value and valve opening pressure time; Step 8. records and gathers air pressure: continue real time record pressure unit and become the atmospheric pressure value sent, and show on a computer display, dash-dotted curve; Step 9. equilibrium pressure: detect equilibrium pressure, continues to detect and record, and atmospheric pressure value continues to decline fast, when atmospheric pressure value kept for 2 seconds constant, now recording this atmospheric pressure value is equilibrium pressure, if do not have equilibrium pressure to occur, returns in previous step 8 and continues record atmospheric pressure value; Step 10. identifies equilibrium pressure: in display form acceptance of the bid note equilibrium pressure value and equilibrium pressure time; Step 11. records and gathers air pressure: after closing gas admittance valve, continues real time record pressure unit and becomes the atmospheric pressure value sent, and show on a computer display, dash-dotted curve; Step 12. valve closing pressure: gather air pressure and decline always, when air pressure is down to change slowly, and more than recording this air pressure during 2min, being valve closing pressure, after record, opening vent valve, if there do not have valve closing to extrude to be existing, return in previous step 11 and continues record atmospheric pressure value; Step 13. identifies valve closing pressure: in display form acceptance of the bid note valve closing pressure value and valve closing pressure time; Step 14. loop test: whether be loop test, if loop test, turns back to the test that above-mentioned steps 5 proceeds from step 5 to step 14, until enter next step when test loop number of times is 0; Step 15. terminates test: complete test.
during concrete detection: first adjusting gas flow meter 5 normal through time be 10ml/min airshed, source of the gas adjusting module 11 is regulated to export as 200KPA atmospheric pressure value, computing machine and testing software 1 run control I/O module 15 automatically, simultaneously by vent valve 4, gas admittance valve 10 is opened, emptying residual gas pressure, ready.
again safety valve to be detected is arranged on relief valve connection 9, completes one-time detection by computing machine automatic operation, action is as follows: computing machine and testing software 1 are first by closing vent valve 4, real-time reading record A/D module 3 output valve, converse four-way interface 7 internal gas pressure value, at this moment atmospheric pressure value is raising always, see accompanying drawing 2 curve, if record flex point place atmospheric pressure value when reducing suddenly, this atmospheric pressure value is valve opening pressure, and continue to detect and record, atmospheric pressure value continues to decline fast, when atmospheric pressure value kept for 2 seconds constant, now recording this atmospheric pressure value is equilibrium pressure, at this moment gas admittance valve 10 is closed, air pressure declines always, when air pressure is down to change slowly, and more than recording this air pressure during 2min, for valve closing pressure, after record, open vent valve 4, complete and once test, repeat aforesaid operations and can carry out repeated test, contrast circulating exhaust process, and record detection record product labelling.
moving calculation machine and testing software 1, by signal wire 2 Control on Communication A/D module 3 Real-time Collection pressure transmitter module 6 atmospheric pressure value, control I/O module 15 complete process controls the sequence switch of gas admittance valve 10 and vent valve 4 simultaneously, obtain the valve opening pressure of safety valve, equilibrium pressure, valve closing pressure value, and draw out the curve of safety valve action, realize comprehensive safety valve to detect, and arrange according to cycle detection, automatically the safety valve action curve of circulation continuous detecting can be measured, store different batches safety valve action curve, for the long-term follow safety valve quality of production provides guidance.
Claims (2)
1. an accumulator protection valve detection method, is characterized in that:
(1) first regulate the gas meter of accumulator safety valve detecting apparatus normal through time be 10ml/min airshed, source of the gas adjusting module is regulated to export as 200KPA atmospheric pressure value, computing machine and testing software run control I/O module automatically, simultaneously by vent valve, inlet open, emptying residual gas pressure, ready;
(2) safety valve to be detected is arranged on the relief valve connection of accumulator safety valve detecting apparatus, completes one-time detection by computing machine automatic operation, action is as follows: computing machine and testing software are first by closing vent valve, real-time reading record A/D module output valve, converse four-way interface internal gas pressure value, now atmospheric pressure value is raising always, if when reducing suddenly, record flex point place atmospheric pressure value, this atmospheric pressure value is valve opening pressure, and continue to detect and record, atmospheric pressure value continues to decline fast, when atmospheric pressure value kept for 2 seconds constant, now recording atmospheric pressure value is equilibrium pressure, at this moment gas admittance valve is closed, air pressure declines always, when air pressure is down to change slowly, and more than recording this air pressure during 2min, for valve closing pressure, after record, open vent valve, complete and once test, repeat aforesaid operations and can carry out repeated test, contrast circulating exhaust process, and record detection record product labelling,
Described accumulator safety valve detecting apparatus includes computing machine and testing software, signal wire, A/D module, vent valve, gas meter, pressure transmitter module, four-way interface, checkout equipment housing, relief valve connection, gas admittance valve, source of the gas adjusting module, tracheae, power lead, power module, I/O module, its Computer and testing software are by signal wire and A/D module and I/O model calling, A/D module is by signal wire Bonding pressure transmitter module, pressure transmitter module is connected on a mouth of four-way interface by tracheae, and its excess-three of four-way interface interface receives gas meter outlet respectively, vent valve import and relief valve connection export, vent valve outlet is straight-through outside, vent valve control section is linked on I/O module by signal mouth by signal wire, the entrance of gas meter is received in air intake valve outlet, the import of gas admittance valve is received in the outlet of source of the gas adjusting module by tracheae, the import of source of the gas adjusting module is received on external gas source by tracheae, and power module is connected to I/O module by out-put supply line, A/D module, signal wire, A/D module, vent valve, pressure transmitter module, four-way interface, gas admittance valve, source of the gas adjusting module, tracheae, power lead, power module, I/O module is installed in checkout equipment housing, relief valve connection, gas meter is arranged on checkout equipment surface of shell and forms testing apparatus, and computing machine and testing software are located at checkout equipment outside.
2. accumulator protection valve detection method according to claim 1, is characterized in that the test software programs of described computing machine has following steps:
Step 1. starts software: start detection software on a computer platform;
Step 2. initialization: computer software arranges I/O module, A/D module work parameter, ensures that modules duty is normal;
Step 3. selects valve body kind: the safety valve kind according to test selects safety valve kind to be measured;
Step 4. starts test: click and start testing button, starts software and automatically controls test process;
Step 5. records air pressure: computing machine and testing software are first by closing vent valve, and read record A/D module output valve in real time, real time record pressure unit becomes the atmospheric pressure value sent, and shows on a computer display, dash-dotted curve;
Step 6 detects valve opening pressure: according to compare air pressure be elevated to a certain degree time, the real-time atmospheric pressure value detecting the unexpected reduction occurred, the i.e. flex point of atmospheric pressure value, this place's atmospheric pressure value is valve opening pressure value, if there is flex point, mark valve opening pressure, if do not have flex point, returns in previous step 5 and continues record atmospheric pressure value;
Step 7. identifies valve opening pressure: in display form acceptance of the bid note valve opening pressure value and valve opening pressure time;
Step 8. records and gathers air pressure: continue real time record pressure unit and become the atmospheric pressure value sent, and show on a computer display, dash-dotted curve;
Step 9. equilibrium pressure: detect equilibrium pressure, continues to detect and record, and atmospheric pressure value continues to decline fast, and when atmospheric pressure value kept for 2 seconds constant, now recording atmospheric pressure value is equilibrium pressure, if do not have equilibrium pressure to occur, returns in previous step 8 and continues record atmospheric pressure value;
Step 10. identifies equilibrium pressure: in display form acceptance of the bid note equilibrium pressure value and equilibrium pressure time;
Step 11. records and gathers air pressure: after closing gas admittance valve, continues real time record pressure unit and becomes the atmospheric pressure value sent, and show on a computer display, dash-dotted curve;
Step 12. valve closing pressure: gather air pressure and decline always, when air pressure is down to change slowly and more than 2min, records this air pressure, is valve closing pressure, after record, opens vent valve, if there do not have valve closing to extrude to be existing, return in previous step 11 and continue record atmospheric pressure value;
Step 13. identifies valve closing pressure: in display form acceptance of the bid note valve closing pressure value and valve closing pressure time;
Step 14. loop test: whether be loop test, if loop test, turns back to the test that above-mentioned steps 5 proceeds from step 5 to step 14, until enter next step when test loop number of times is 0;
Step 15. terminates test: complete test.
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| CN201110077838.7A CN102721534B (en) | 2011-03-30 | 2011-03-30 | Accumulator protection valve detection method |
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| CN201110077838.7A CN102721534B (en) | 2011-03-30 | 2011-03-30 | Accumulator protection valve detection method |
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| CN102721534B true CN102721534B (en) | 2016-02-10 |
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| CN103900803A (en) * | 2012-12-26 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Machine-controlled safety valve detection method and device |
| CN103278312B (en) * | 2013-03-30 | 2015-07-01 | 国家电网公司 | Method and device for verifying pressure relief valve of transformer |
| CN104440749B (en) * | 2014-10-13 | 2017-02-15 | 太仓越华精密机械配件有限公司 | Production method for switching valve |
| CN105675277B (en) * | 2016-01-14 | 2018-05-25 | 南京市锅炉压力容器检验研究院 | One kind opens entirely or Low lift safety valve Opening pressure intelligence method of calibration |
| CN107515111B (en) * | 2017-08-30 | 2024-03-19 | 广东电网有限责任公司东莞供电局 | Storage battery valve testing device and storage battery valve detection method |
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| US4893494A (en) * | 1988-03-31 | 1990-01-16 | Management Services International, Inc. | Method and system for testing safety relief valves |
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