CN104180871A - Liquid level continuous measuring device and application thereof - Google Patents
Liquid level continuous measuring device and application thereof Download PDFInfo
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- CN104180871A CN104180871A CN201410425746.7A CN201410425746A CN104180871A CN 104180871 A CN104180871 A CN 104180871A CN 201410425746 A CN201410425746 A CN 201410425746A CN 104180871 A CN104180871 A CN 104180871A
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Abstract
The invention discloses a liquid level continuous measuring device which comprises a simulation danger escape cabin, a measuring device and a data processing device. The simulation danger escape cabin is used for generating back pressures after being filled with water; the measuring device is mounted on the simulation danger escape cabin; the measuring device comprises a first watertight connector, the first watertight connector is mounted on a side wall of the simulation danger escape cabin and is sequentially connected with a second watertight connector and a pressure sensor detecting device, and a signal conditioning module is connected onto the pressure sensor detecting device; the data processing device is used for receiving digital signals transmitted by the pressure sensor detecting device and computes pressure difference between a measuring cavity in the pressure sensor detecting device and a reference cavity, so that internal liquid levels of the simulation danger escape cabin can be obtained. The liquid level continuous measuring device has the advantages that the liquid level continuous measuring device is high in measurement precision, is in an integral design, is convenient to mount and brings convenience for connection, the internal liquid levels in environments under the high back pressures can be continuously measured in real time, and pipeline joints or cabin communicating components can be omitted.
Description
Technical field
The invention belongs to submarine rescue technical field, more specifically, relate to a kind of continuous liquid level measuring device and application thereof.
Background technology
Quick upward floating danger-removal is a kind of escape method that current submarine personnel is escaped danger at large depth underwater, and its cardinal principle is: first, ship person puts on quick upward floating danger-removal clothes and enters the cabin of escaping danger; Then, normal pressure water filling is carried out in the cabin of escaping danger, when the water level in cabin of escaping danger rises to after assigned address, according to index curve, Quick-pressing is carried out in the cabin of escaping danger; When after the outside sea water pressure balance of escape danger cabin internal pressure and submarine, open the cabin upper cover of escaping danger, after this ship person freely floats up to the water surface from the cabin of escaping danger.Whole add decompression process time very short, ship person's high pressure open-assembly time is also very short, thereby has avoided the generation of decompression sickness, for ship person's life security provides guarantee.
In the pressure process of quick upward floating danger-removal, need to take head-shield to escaping danger synchronously pressurizes, and keep escaping danger and take head-shield internal pressure and the cabin internal pressure difference substantially constant of escaping danger, take in head-shield in gassy and head-shield liquid level to ensure to escape danger in safe range, thereby avoid ship person to be drowned because liquid level in head-shield departs from safe range, guarantee that ship person can eupnea in pressure process.
Take above-mentioned performance in order to check to escape danger, in the time carrying out quick upward floating danger-removal simulation test, need to be at the inner liquid level sensor of installing of the clothes of escaping danger to be checked, to check the variation that takes liquid level in head-shield of escaping danger in Quick-pressing process whether to meet safety requirements.The object of the invention is to design a kind of method that liquid level changes of accurately measuring continuously under high back pressure environment.In this field known technology, like product is more, such as: magnetic float level indicator, ball float float level meter, differential pressure pickup etc.
The principle of ball float float level meter is in sensor guide rod, and the substitutional resistance that several magnetic reed switchs and quantity are equal is installed equidistantly.In the time that ball float floats to certain position with liquid level, the magnetic reed switch of this position is just connected the corresponding resistor that represents this position.Resistance value at output terminal just represents this liquid level.The shortcoming of ball float float level meter is that volume is large, and resolution is low, can not continuous coverage liquid level.
The principle of magnetic float level indicator is to float over measured medium when surface when the float of permanent-magnet steel is housed, and along with level change, magnet steel position changes thereupon, and by the double-colored magnetic column upset of magnetizing system couple drive, thereby show liquid level position.As described in patent CN92109022.6, CN200910219682.4, CN90214727.7, they all adopt this principle or its improvement project to measure liquid level, and advantage is that precision is high, can realize the continuous coverage of liquid level, and shortcoming is that volume is larger, has lag-effect.
As described in patent CN201220352360.4, its principle is that the liquid-level pressure of escaping danger in cabin by differential pressure pick-up measure analog carries out level gauging, the method need to be installed pressure guiding pipe the atmospheric pressure on fluid pressure and liquid level is incorporated into respectively the He Fuya chamber, malleation chamber of differential pressure pickup, and differential pressure pick-up can only bear interior pressure, be not suitable for the direct measurement of liquid level in high back pressure environment.
Patent CN200510055687.X utilizes liquid level in radionetric survey principle continuous coverage high pressure vessel, it is characterized in that core radiation applicator to be fixed on high pressure vessel outer upper end, radioactive ray oliquely downward pass high pressure vessel by generation source, receive rod by the radioactive ray that are fixed on high pressure vessel opposite side and receive emission signal, the signal receiving imports computing machine into by transmitter and compensates processing, and signal after treatment shows and automatic Control Systems of Liquids Height for instrument.This invention can adopt non-contact method to realize liquid level under hyperbaric environment, but emissive source and probe all can not bear external pressure, is not also suitable for the direct measurement of liquid level in high back pressure environment.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of continuous liquid level measuring device and application thereof, its object is the liquid level that real-time continuous measurement high back pressure environment Imitating is escaped danger in cabin, guarantee is escaped danger and is taken in head-shield in gassy and head-shield liquid level in safe range, thereby avoid ship person to be drowned because liquid level in head-shield departs from safe range, guarantee that ship person can eupnea in pressure process.
For achieving the above object, according to one aspect of the present invention, provide a kind of continuous liquid level measuring device, comprised and simulate the cabin of escaping danger, for forming back pressure after water-filling therein, measurement mechanism, is arranged on simulation and escape danger on cabin, measurement mechanism comprises the first watertight connector, the first watertight connector is arranged on the sidewall of simulating the cabin of escaping danger, the first watertight connector connects the second watertight connector and pressure sensor detecting device successively, pressure sensor detecting device comprises shell and the first pressure transducer is in the enclosure installed, in the shell of pressure sensor detecting device, be provided with and measure chamber and reference cavity, the first pressure transducer is arranged to be measured in chamber, the atmospheric environment that the reference cavity of pressure sensor detecting device is escaped danger in cabin with simulation by flexible pipe is communicated with, the first pressure transducer connects signal condition module, signal condition module is converted to digital signal after the millivolt signal of pressure sensor detecting device input is amplified, the second watertight connector, pressure sensor detecting device and flexible pipe are all positioned at simulates the inside, cabin of escaping danger, data processing equipment, be connected on the first watertight connector, it is positioned at simulation escape danger out of my cabin, the digital signal sending for receiving signal reason module, and pressure reduction between measurement chamber and reference cavity in calculation pressure sensor pick-up unit, thereby obtain the liquid level that simulation is escaped danger in cabin.
Preferably, the first watertight connector connects the first watertight cable, on the second watertight connector, connect the second watertight cable, connect the 3rd watertight cable in signal condition module, the sulfuration point that the first watertight cable, the second watertight cable and the 3rd watertight cable form by the vulcanization of rubber links together.
Preferably, pressure sensor detecting device is provided with silicon diaphragm, with perception, it measures the pressure differential between chamber and reference cavity, silicon diaphragm is converted to millivolt signal by full-bridge circuit by pressure difference signal, signal condition module is provided with signal conditioning circuit, A/D conversion chip and single-chip microcomputer, after the millivolt signal that signal conditioning circuit will pressure sensor detecting device sends amplifies, be input to A/D conversion chip, the voltage signal that single-chip microcomputer collects A/D conversion chip is converted into and is transferred to data processing equipment by serial port communication chip after digital quantity and processs and displays.
One is escaped danger and is taken head-shield liquid level test macro, comprise continuous liquid level measuring device, simulate the cabin of escaping danger and connect respectively logical cabin pipeline, cabin pressure pipeline, relief line, head-shield loading line and water injecting pipeline, on the pipeline of logical cabin, connect AVSV Air Vent Solenoid Valve, on the pressure pipeline of cabin, connect pressurization variable valve, on relief line, connect decompression valve, head-shield loading line upper binding head cover inflation solenoid valve and head-shield gas charging system, head-shield gas charging system is positioned at simulates the cabin of escaping danger, on water injecting pipeline, connect water injecting electromagnetic valve, pressurization variable valve connects source of the gas by the first reduction valve, head-shield inflation solenoid valve connects source of the gas by the second reduction valve, the top of simulating the cabin of escaping danger connects temperature sensor and the second pressure transducer, simulate in the cabin of escaping danger and arrange and wear the dummy who escape danger and take, escape danger to take one-way exhaust valve is set, head-shield gas charging system takes head-shield to escaping danger and pressurizes, make to escape danger and take head-shield internal pressure always higher than the simulation cabin internal pressure of escaping danger, data processing equipment connects respectively AVSV Air Vent Solenoid Valve, pressurization variable valve, decompression valve, head-shield inflation solenoid valve and water injecting electromagnetic valve.
Take the method that head-shield liquid level test macro carries out liquid level test to escaping danger, comprise the following steps:
A) open and simulate escape danger cabin, AVSV Air Vent Solenoid Valve and water injecting electromagnetic valve, carry out normal pressure water filling to simulating the cabin of escaping danger, when water level rises to specified altitude assignment within being escaped danger in cabin in simulation, close AVSV Air Vent Solenoid Valve and water injecting electromagnetic valve, stop normal pressure water filling;
B) aperture of data processing equipment control pressurization variable valve, making to simulate gaseous tension P2 in the cabin of escaping danger rises according to assignment curve, simultaneously, open head-shield inflation solenoid valve, taking head-shield through head-shield gas charging system to escaping danger from the gas of head-shield loading line pressurizes, making to escape danger takes head-shield internal pressure P3 all the time higher than the simulation gaseous tension P2 in cabin that escape danger, and the one-way exhaust valve of gas on the clothes of escaping danger enters simulation and escape danger in cabin;
C) when within being escaped danger in cabin in simulation, gaseous tension P2 reaches appointment size, data processing equipment cuts out pressurization variable valve and head-shield inflation solenoid valve simultaneously, stops taking head-shield inflation to simulating the cabin Quick-pressing of escaping danger with escaping danger;
D) open decompression valve, adopt and automatically control or manual electric behaviour's mode control decompression valve aperture, reduce pressure to simulating the cabin of escaping danger;
E) in whole pressurization and decompression process, data processing equipment by simulation escape danger temperature, pressure in cabin, escaping danger takes liquid level in head-shield and shows and be stored in data processing equipment with numeral and patterned form.
In general, the above technical scheme of conceiving by the present invention compared with prior art, can obtain following beneficial effect:
1) all parts all can bear external pressure, and volume is little, therefore can be installed in the limited object to be measured of installing space;
2) measuring accuracy is high;
3) can real-time continuous measure liquid level in high back pressure environment;
4) integrated design, easy for installation, not needing increases pipe joint or communication cabin component, easy to connect;
5) can be accurately, reliably, rapidly the liquid level taking in head-shield of escaping danger in Quick-pressing process is carried out to Real-Time Monitoring, guarantee is escaped danger and is taken in head-shield in gassy and head-shield liquid level in safe range, thereby avoid ship person to be drowned because liquid level in head-shield departs from safe range, guarantee ship person's energy eupnea in pressure process;
6) in whole pressurization and decompression process, data processing equipment is by the each physical quantity in process of the test, as simulation escape danger temperature, pressure in cabin, the data such as taking in head-shield liquid level of escaping danger, show and be stored on data processing equipment with numeral and patterned form, convenient data call and playback from now on.
Brief description of the drawings
Fig. 1 is the configuration schematic diagram of continuous liquid level measuring device in the present invention;
Fig. 2 is the circuit theory diagrams of continuous liquid level measuring device in the present invention;
Fig. 3 escape danger in the present invention to take the configuration schematic diagram of head-shield liquid level test macro.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of continuous liquid level measuring device, comprises and simulates the cabin 101 of escaping danger, for forming back pressure after water-filling therein, measurement mechanism, is arranged on simulation and escape danger on cabin 101, measurement mechanism comprises the first watertight connector 105, the first watertight connector 105 is arranged on the sidewall of simulating the cabin 101 of escaping danger, the first watertight connector 105 connects the second watertight connector 106 and pressure sensor detecting device 100 successively, pressure sensor detecting device 100 comprises shell 15 and is arranged on the first pressure transducer 17 in shell 15, in the shell 15 of pressure sensor detecting device 100, be provided with and measure chamber and reference cavity, the first pressure transducer 17 is arranged to be measured in chamber, the atmospheric environment 104 that the reference cavity of pressure sensor detecting device 100 is escaped danger in cabin 101 with simulation by flexible pipe 16 is communicated with, the first pressure transducer 17 connects signal condition module 103, the millivolt signal that signal condition module 103 is inputted pressure sensor detecting device 100 is converted to digital signal after amplifying, the second watertight connector 106, pressure sensor detecting device 100 and flexible pipe 16 are all positioned at simulates 101 inside, cabin of escaping danger, data processing equipment 102, be connected on the first watertight connector 105, it is positioned at simulation and escape danger outside cabin 101, the digital signal sending for receiving signal reason module 103, and pressure reduction between measurement chamber and reference cavity in calculation pressure sensor pick-up unit 100, thereby obtain the liquid level that simulation is escaped danger in cabin 101.Preferably, the first watertight connector 105 connects the first watertight cable 108, on the second watertight connector 106, connect the second watertight cable 107, in signal condition module 103, connecting the sulfuration point 110 that the 3rd watertight cable 109, the first watertight cables 108, the second watertight cable 107 and the 3rd watertight cable 109 form by the vulcanization of rubber links together.Pressure sensor detecting device 100, signal condition module 103 and annex thereof all can bear external pressure.
Under high back pressure environment of the present invention, level gauging principle is as follows: pressure sensor detecting device 100 is provided with silicon diaphragm, with perception, it measures the pressure differential between chamber and reference cavity, silicon diaphragm is converted to millivolt signal by full-bridge circuit 14 by pressure difference signal, signal condition module 103 is provided with signal conditioning circuit, A/D conversion chip 13 and single-chip microcomputer 11, the millivolt signal that signal conditioning circuit sends pressure sensor detecting device 100 is input to A/D conversion chip 13 after amplifying, the voltage signal that single-chip microcomputer 11 collects A/D conversion chip 13 is converted into and is transferred to data processing equipment 102 by serial port communication chip 12 after digital quantity and processs and displays.
Pressure reduction between measurement chamber and the reference cavity of pressure sensor detecting device 100 pressure that the fluid column of the interior liquid level 111 in cabin 101 produces that equals to escape danger from the measurement chamber mounting points of pressure sensor detecting device 100 to simulation, utilizes formula P1-P2=ρ gh can show that described liquid-column height is liquid level h=(P1-P2)/ρ g.
Wherein: P1 is the measurement chamber mounting points pressure of pressure sensor detecting device 100, P2 is for simulating the interior gaseous tension in cabin 101 of escaping danger, and ρ is for simulating the interior fluid density in cabin 101 of escaping danger, and g is acceleration of gravity 9.8m/s
2, h measures chamber mounting points to the escape danger liquid-column height of the interior liquid level 111 in cabin 101 of simulation from pressure sensor detecting device 100.
Escape danger the gaseous tension P2 of the interior atmospheric environment 104 in cabin 101 while changing when simulation, also can ensure that measurement result truly reflects the liquid level overall height H that simulation is escaped danger in cabin 101.
Because the height of the measurement chamber mounting points of pressure sensor detecting device 100 can record when mounted, therefore record h, both additions can obtain liquid level overall height H.
Shown in figure 3, one is escaped danger and is taken head-shield liquid level test macro, comprise above-mentioned continuous liquid level measuring device, simulate the cabin 101 of escaping danger and connect respectively logical cabin pipeline 305, cabin pressure pipeline 301, relief line 303, head-shield loading line 302 and water injecting pipeline 304, on logical cabin pipeline 305, connect AVSV Air Vent Solenoid Valve 206, on cabin pressure pipeline 301, connect pressurization variable valve 207, on relief line 303, connect decompression valve 208, head-shield loading line 302 upper binding head cover inflation solenoid valve 209 and head-shield gas charging systems 212, head-shield gas charging system 212 is positioned at simulates the cabin 101 of escaping danger, on water injecting pipeline 304, connect water injecting electromagnetic valve 210, pressurization variable valve 207 connects source of the gas by the first reduction valve 211, head-shield inflation solenoid valve 209 connects source of the gas by the second reduction valve 213, the top of simulating the cabin 101 of escaping danger connects temperature sensor 202 and the second pressure transducer 203, simulation is escaped danger, and cabin 101 is interior to be arranged dress and escape danger and take 204 dummy 205, escape danger to take one-way exhaust valve 18 is set on 204, head-shield gas charging system 212 takes 204 head-shield and pressurizes to escaping danger, make to escape danger and take 204 head-shield internal pressure always higher than simulation cabin 101 internal pressures of escaping danger, data processing equipment 102 connects respectively AVSV Air Vent Solenoid Valve 206, pressurization variable valve 207, decompression valve 208, head-shield inflation solenoid valve 209 and water injecting electromagnetic valve 210.
In the present embodiment, the second pressure transducer 203, temperature sensor 202 are installed on simulation 101 tops, cabin of escaping danger, for the escape danger variation of cabin 101 internal pressures and temperature of measure analog.Pressure sensor detecting device 100 and signal condition module 103 by binding strap be fixed on escape danger take 204 inside dummy 205 with it and the bilge, the reference cavity of pressure sensor detecting device 100 is taken atmospheric environment in 204 head-shield and is communicated with escaping danger by flexible pipe 16, the first watertight connector 105 that signal condition module 103 is escaped danger on cabin 101 by watertight cable and simulation is connected, watertight cable takes 204 cuff and takes 204 inside from escaping danger and pass by escaping danger, data processing equipment 102 is by twisted-pair feeder and the second pressure transducer 203, temperature sensor 202 and the simulation interior signal condition module 103 in cabin 101 of escaping danger is connected.Signal condition module 103 is carried out communication by serial ports and data processing equipment 102, and the millivolt signal that the first pressure transducer 17 is transmitted is converted to digital signal, and is transferred to and in data processing equipment 102, carries out data processing, demonstration and preservation.
Details are as follows for test process in the present embodiment:
1. open AVSV Air Vent Solenoid Valve 206 and water injecting electromagnetic valve 210, normal pressure water filling is carried out in the simulation cabin 101 of escaping danger, escape danger the interior water level in cabin 101 while rising to specified altitude assignment when simulation, close AVSV Air Vent Solenoid Valve 206 and water injecting electromagnetic valve 210, stop normal pressure water filling;
2. after Quick-pressing starts, data processing equipment 102 is controlled the aperture of pressurization variable valve 207, making to simulate the interior gaseous tension P2 in cabin 101 that escape danger rises according to assignment curve, simultaneously, open head-shield inflation solenoid valve 209, take 204 head-shield from the gas of head-shield loading line 302 through head-shield gas charging system 212 to escaping danger and pressurize, making to escape danger takes 204 head-shield internal pressure P3 all the time higher than the simulation interior gaseous tension P2 in cabin 101 that escape danger, and the one-way exhaust valve 18 that gas takes through escaping danger on 204 enters in cabin;
3. when simulation is escaped danger the interior gaseous tension P2 in cabin 101 while reaching designated depth, data processing equipment 102 cuts out pressurization variable valve 207 and head-shield inflation solenoid valve 209 simultaneously, stops escaping danger cabin 101 Quick-pressings and escape danger and take 204 head-shield inflation of simulation;
4. open decompression valve 208, can reduce pressure to simulating the cabin 101 of escaping danger, the present embodiment can adopt automatic control or manual electric behaviour's mode control decompression valve 208 apertures;
5. in whole Quick-pressing and decompression process, data processing equipment 102 is by the each physical quantity in process of the test, as simulation the escape danger interior temperature in cabin 101, pressure, the data such as taking in 204 head-shield liquid level of escaping danger, show and be stored on data processing equipment 102 with numeral and patterned form, convenient data call and playback from now on.
Be installed on simulation and escape danger the temperature sensor 202 at 101 tops, cabin for the escape danger situation of change of cabin 101 interior temperature of Real-Time Monitoring process of the test simulation, the second pressure transducer 203 feeds back to data processing equipment 102 for cabin 101 internal pressures that simulation is escaped danger, to realize the automatic control of Quick-pressing and decompression process.
The liquid level that the present embodiment can take escaping danger in Quick-pressing process in 204 head-shield accurately, reliably, is rapidly carried out Real-Time Monitoring.Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (5)
1. a continuous liquid level measuring device, is characterized in that: comprise
Simulate the cabin (101) of escaping danger, for forming back pressure after water-filling therein;
Measurement mechanism, is arranged on simulation and escape danger on cabin (101);
Measurement mechanism comprises the first watertight connector (105), the first watertight connector (105) is arranged on the sidewall of simulating cabin (101) of escaping danger, the first watertight connector (105) connects the second watertight connector (106) and pressure sensor detecting device (100) successively, pressure sensor detecting device (100) comprises shell (15) and is arranged on the first pressure transducer (17) in shell (15), in the shell (15) of pressure sensor detecting device (100), be provided with and measure chamber and reference cavity, the first pressure transducer (17) is arranged to be measured in chamber, the atmospheric environment (104) that the reference cavity of pressure sensor detecting device (100) is escaped danger in cabin (101) by flexible pipe (16) and simulation is communicated with, the first pressure transducer (17) connects signal condition module (103), signal condition module (103) is converted to digital signal after the millivolt signal of pressure sensor detecting device (100) input is amplified, the second watertight connector (106), pressure sensor detecting device (100) and flexible pipe (16) are all positioned at simulates the inside, cabin (101) of escaping danger,
Data processing equipment (102), be connected on the first watertight connector (105), it is positioned at simulation and escape danger outside cabin (101), the digital signal sending for receiving signal reason module (103), and pressure reduction between measurement chamber and reference cavity in calculation pressure sensor pick-up unit (100), thereby obtain the liquid level that simulation is escaped danger in cabin (101).
2. a kind of continuous liquid level measuring device according to claim 1, it is characterized in that: the first watertight connector (105) connects the first watertight cable (108), upper the second watertight cable (107) that connects of the second watertight connector (106), upper the 3rd watertight cable (109) that connects of signal condition module (103), the sulfuration point (110) that the first watertight cable (108), the second watertight cable (107) and the 3rd watertight cable (109) form by the vulcanization of rubber links together.
3. a kind of continuous liquid level measuring device according to claim 1, it is characterized in that: pressure sensor detecting device (100) is provided with silicon diaphragm, with perception, it measures the pressure differential between chamber and reference cavity, silicon diaphragm is converted to millivolt signal by full-bridge circuit (14) by pressure difference signal, signal condition module (103) is provided with signal conditioning circuit, A/D conversion chip (13) and single-chip microcomputer (11), the millivolt signal that signal conditioning circuit sends pressure sensor detecting device (100) is input to A/D conversion chip (13) after amplifying, the voltage signal that single-chip microcomputer (11) collects A/D conversion chip (13) is converted into and is transferred to data processing equipment (102) by serial port communication chip (12) after digital quantity and processs and displays.
4. escape danger and take head-shield liquid level test macro for one kind, it is characterized in that: comprise the continuous liquid level measuring device described in arbitrary claim in claim 1～3, simulate the cabin (101) of escaping danger and connect respectively logical cabin pipeline (305), cabin pressure pipeline (301), relief line (303), head-shield loading line (302) and water injecting pipeline (304), the upper AVSV Air Vent Solenoid Valve (206) that connects of logical cabin pipeline (305), the upper pressurization variable valve (207) that connects of cabin pressure pipeline (301), the upper decompression valve (208) that connects of relief line (303), head-shield loading line (302) upper binding head cover inflation solenoid valve (209) and head-shield gas charging system (212), head-shield gas charging system (212) is positioned at simulates the cabin (101) of escaping danger, the upper water injecting electromagnetic valve (210) that connects of water injecting pipeline (304), pressurization variable valve (207) connects source of the gas by the first reduction valve (211), head-shield inflation solenoid valve (209) connects source of the gas by the second reduction valve (213), the top of simulating the cabin (101) of escaping danger connects temperature sensor (202) and the second pressure transducer (203), simulation is escaped danger the escape danger dummy (205) of clothes (204) of dress is set in cabin (101), escape danger on clothes (204) one-way exhaust valve (18) is set, head-shield gas charging system (212) pressurizes to the head-shield of the clothes (204) of escaping danger, make to escape danger the head-shield internal pressure of clothes (204) always higher than simulation cabin (101) internal pressure of escaping danger, data processing equipment (102) connects respectively AVSV Air Vent Solenoid Valve (206), pressurization variable valve (207), decompression valve (208), head-shield inflation solenoid valve (209) and water injecting electromagnetic valve (210).
5. claimed in claim 4 escaping danger taken to the method that head-shield liquid level test macro carries out liquid level test, it is characterized in that: comprise the following steps:
A) open and simulate escape danger cabin (101), AVSV Air Vent Solenoid Valve (206) and water injecting electromagnetic valve (210), carry out normal pressure water filling to simulating the cabin (101) of escaping danger, when within being escaped danger in cabin (101) in simulation, water level rises to specified altitude assignment, close AVSV Air Vent Solenoid Valve (206) and water injecting electromagnetic valve (210), stop normal pressure water filling;
B) data processing equipment (102) is controlled the aperture of pressurization variable valve (207), making to simulate the interior gaseous tension P2 in cabin (101) that escape danger rises according to assignment curve, simultaneously, open head-shield inflation solenoid valve (209), gas from head-shield loading line (302) pressurizes to the head-shield of the clothes (204) of escaping danger through head-shield gas charging system (212), make to escape danger the head-shield internal pressure P3 of clothes (204) all the time higher than the simulation interior gaseous tension P2 in cabin (101) that escape danger, the one-way exhaust valve (18) of gas on the clothes (204) of escaping danger enters simulation and escape danger in cabin (101),
C) within being escaped danger in cabin (101) in simulation, gaseous tension P2 reaches while specifying size, data processing equipment (102) cuts out pressurization variable valve (207) and head-shield inflation solenoid valve (209) simultaneously, stops the head-shield inflation to simulating escape danger cabin (101) Quick-pressing and the clothes (204) of escaping danger;
D) open decompression valve (208), adopt and automatically control or manual electric behaviour's mode control decompression valve (208) aperture, reduce pressure to simulating the cabin (101) of escaping danger;
E), in whole pressurization and decompression process, data processing equipment (102) shows the simulation liquid level in the head-shield of the interior temperature in cabin (101), pressure, the clothes (204) of escaping danger of escaping danger be stored in data processing equipment (102) with numeral and patterned form.
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| CN201410425746.7A CN104180871A (en) | 2014-08-26 | 2014-08-26 | Liquid level continuous measuring device and application thereof |
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| CN108897348A (en) * | 2018-09-25 | 2018-11-27 | 中国船舶重工集团公司第七0三研究所 | A kind of ORC electricity generation system working medium tank automatic Control Systems of Liquids Height |
| CN108897348B (en) * | 2018-09-25 | 2023-07-28 | 中国船舶重工集团公司第七0三研究所 | ORC power generation system working medium tank liquid level automatic control system |
| CN112880614A (en) * | 2021-01-18 | 2021-06-01 | 中国建筑第八工程局有限公司 | Method and device for monitoring pouring height of concrete filled steel tubular column |
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