CN205014027U - Liquid gas anti -overcharging device - Google Patents
Liquid gas anti -overcharging device Download PDFInfo
- Publication number
- CN205014027U CN205014027U CN201520751109.9U CN201520751109U CN205014027U CN 205014027 U CN205014027 U CN 205014027U CN 201520751109 U CN201520751109 U CN 201520751109U CN 205014027 U CN205014027 U CN 205014027U
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- control circuit
- differential pressure
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Abstract
The utility model provides a liquid gas anti -overcharging device includes: signal acquisition module, signal processing module, safety protection module and passive energy supply module, the signal acquisition module is passed through the cable and is connected with signal processing module, signal processing module passes through the cable and is connected with safety protection module, the cable is passed through to signal acquisition module, signal processing module and safety protection module power supply to passive energy supply module. The signal acquisition module includes a temperature sensor, the 2nd temperature sensor, and differential pressure sensor is surveyed the liquid medium process a temperature sensor, the temperature rapid drawdown reaches very fast and presets the property value, the signal flow that a temperature sensor recorded is carried to microprocessor through first cable, and first cable passes a water joint to be connected with the control scheme board in the main body cover, and the signal flow passes through the control scheme board and arrives microprocessor.
Description
Technical field
The utility model relates to fields of measurement, particularly relates to and utilizes the anti-overcharge device of a kind of liquid gas.
Background technique
Because liquid gas can gasify in the process used, thus cause the increase of tank internal pressure, so liquid gas tank can reserve certain buffer area when filling, but when filling because measuring inaccurate or the assurance time is improper, cause that liquid gas is canned is in the state of overcharging, bring great potential safety hazard to productive life.
Model utility content
The purpose of this utility model is to provide the anti-overcharge device of a kind of liquid gas, not only record liquid level, simultaneously also real-time monitoring of tank internal pressure situation, avoid that liquid gas tank internal cause overcharges and pressure is excessive, cause security incident or because of the excessive emptying befouling environment of pressure, waste energy.
In order to solve the problems of the technologies described above, the utility model adopts technological scheme:
A kind of anti-overcharge method of liquid gas: be provided with the first temperature transducer, the second temperature transducer in liquid gas tank body, described first temperature transducer is comparatively first filled liquid by liquid gas than the second sensor and arrives, be provided with certain distance between described first temperature transducer and the second temperature transducer, fill more than 30 seconds time for good to fill liquid.
Described first temperature transducer records temperature decrease and is and fills liquid and arrive, or pre-set warm cold parameter, when temperature reach the cold parameter of described temperature be fill liquid arrive, described first temperature transducer records temperature data by the first cable, connect microprocessor through the first water joint, microprocessor according to the parameter of the temperature decrease preset and or default warm cold parameter decision fill liquid and whether arrive the first temperature transducer; If not, then mourn in silence; If arrive, then send instruction to emergency alarm immediately, start alarm sounds.
Described second temperature transducer record temperature decrease be fill liquid arrive, or pre-set warm cold parameter, when temperature reach the cold parameter of described temperature be fill liquid arrive, described second temperature transducer records temperature data by the second cable, connect microprocessor through the second water joint, microprocessor according to the parameter of the temperature decrease preset and or default warm cold parameter decision fill liquid and whether arrive the second temperature transducer; If not, then mourn in silence; If arrive, then send instruction to solenoid valve immediately, close fluid inlet valve.
The anti-overcharge method of the another kind of liquid gas of the utility model: according to the relation of measured medium density, tank volume, liquid level and measured medium differential pressure, convert measured medium liquid level to differential pressure numerical value, the differential pressure numerical value of conversion is set to the first differential pressure numerical value by the first liquid level according to presetting, and the differential pressure numerical value of conversion is set to the second differential pressure numerical value by the second liquid level according to presetting.
Described microprocessor gap sensor numerical value is monitored, and described gap sensor numerical value reaches default first differential pressure numerical value, sends instruction immediately to emergency alarm, starts alarm; Described gap sensor dynamic value reaches default second differential pressure numerical value, then send instruction to solenoid valve immediately, closes fluid inlet pipeline.
The anti-overcharge device of a kind of liquid gas comprises: signal acquisition module, signal processing module, security protection module and passive power module; described signal acquisition module is connected with signal processing module by cable; described signal processing module is connected with security protection module by cable, and described passive power module is powered to signal acquisition module, signal processing module and security protection module by cable.
Described signal acquisition module comprises the first temperature transducer, second temperature transducer, differential pressure transducer, tested liquid medium is through described first temperature transducer, temperature decrease, reaches preset parameter value very soon, and the signal that described first temperature transducer records flows through the first cable and carries to microprocessor, first cable is connected with the control circuit board in main body cover through the first water joint, and signal flows through control circuit board and arrives microprocessor.
Tested liquid medium is through described second temperature transducer, temperature decrease, reach preset parameter value very soon, the signal that described second temperature transducer records flows through the second cable and carries to microprocessor, second cable is connected with the control circuit board in main body cover through the second water joint, and signal flows through control circuit board and transmits microprocessor.
With or record differential pressure signal stream by differential pressure transducer described in tested liquid medium, transmit microprocessor by signaling line by control circuit board.
Preferably, described differential pressure transducer, is built in differential pressure transducer cavity, comprises stainless steel isolation diaphragm, differential pressure transducer core body being connected with control circuit board by quotation marks line;
Preferably, described differential pressure transducer cavity, middle built-in differential pressure transducer, two ends are divided into differential pressure high pressure port and differential pressure low-pressure port, wherein differential pressure high pressure port by first pipeline connect LNG tank bottom, draw LNG liquid phase and or gas phase to differential pressure transmitter cavity, differential pressure low-pressure port connects LNG tank top by the second pipeline, draw LNG gas phase to pressure sensor cavity, differential pressure signal line, is connected with control circuit board through main body cover by T-shaped pipe.
Preferably, described differential pressure transducer cavity is that low temperature resistant carbon steel material is formed, and the stainless steel all-welded structure that positive and negative cavity pressure interface is internal thread is formed, and is arranged on measuring channel or by pressure inlet tube connects by internal thread pressure interface.
Preferably, described differential pressure transducer cavity is that low temperature resistant carbon steel material is formed, and the stainless steel all-welded structure being internal thread with main body external tapping is formed, and fixes with locking nut and main body cover.
Described signal processing module comprises: main body cover, rigid rack body, is provided with battery pack, control circuit board, display screen in described main body cover.
Described control circuit board comprises: microprocessor, storage element, power control circuit, wireless transmission unit and reset circuit.
Described microprocessor records signal stream to sensor and carries out logical operation, and transfer preset parameter value that storage element prestores and carry out contrast and judge, if the first temperature transducer records numerical value reach preset parameter range, then send instruction to power control circuit, after power control circuit receives instruction, to alarm module for power supply, start alarm module alarm.
Described microprocessor carries out logical operation to the signal stream that the second temperature transducer records, and transfer the preset parameter value that storage element prestores, and transfer preset parameter value that storage element prestores and carry out contrast and judge, if the second temperature transducer records numerical value reach preset parameter range, then send instruction to power control circuit, after power control circuit receives instruction, close water influent pipeline solenoid valve.
Described microprocessor gap sensor numerical value is monitored, transfer the first differential pressure numerical value, the second differential pressure numerical value that the storage unit that prestores prestores, described gap sensor dynamic value reaches default first differential pressure numerical value, sends instruction immediately to emergency alarm, starts alarm; Described gap sensor dynamic value reaches default second differential pressure numerical value, then send instruction to solenoid valve immediately, closes fluid inlet valve.
Described reset circuit, is resetted to operation system by manual pushbutton or controlled in wireless.
Described wireless transport module comprises at least one in the wireless transport module such as infrared rays, bluetooth, WEIFI, NFC, GSM, GPRS, UWB, 3G, 4G, 5G.
Described display screen records numerical parameter for showing sensor.
Upper cover is provided with above described main body cover, cover on described and be provided with for the perspective portion of display screen display with for manually-operated keyboard button, described upper cover draw-in groove and main body cover clamp and seal, corner stud is fixed, thus the parts that can take out in main body cover, described draw-in groove sealing adopts polytetrafluoroethylmaterial material sealing.
Preferably, described rigid rack body is made up of angle-style portion and bottom surface sections, and Open Side Down in described angle-style portion, and its one side is vertical connects described bottom surface sections, and described main body cover is fixed in described bottom surface sections.
Described security protection module comprises alarm module and water influent pipeline solenoid valve.
Described alarm module comprises buzzer, LED flashing light, and described LED flashing light adopts the LED flashing light of color redness, or the red green LED flashing light replaced, and described buzzer, flashing light can manually arrange.
Described water influent pipeline solenoid valve is connected with described control circuit board by the second cable, and described control circuit board passes through power-on or powered-down shut electromagnetic valve and then water influent pipeline.
Described passive power module, comprises photovoltaic module plate, the first cable and battery pack.
Solar energy is converted to electric energy by the first cable for measuring circuit and described control circuit board provide power supply by described photovoltaic module plate, store electric energy in storage battery, when photovoltaic module plate does not receive solar energy, described battery pack powers to described measuring circuit and described control circuit board simultaneously.
Described battery pack comprises the first storage battery and the second power storage cell, and described first storage battery is main confession battery, and described second storage battery is stand-by power supply pond, when main confession battery is inoperable, is powered by reserve battery.
After adopting technique scheme, the utility model compared with prior art has following outstanding advantages: the utility model can avoid liquid gas to make tank body be in dangerous situation because filling excessive effectively, differential pressure transducer is arranged on the outside technique can avoided in tank interior sensor installation complexity of tank body simultaneously, save cable consumptive material, greatly save safety cost; When sensor is damaged, can be conveniently replaced, avoid causing whole liquid gas tank to be scrapped because of sensor degradation.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the anti-overcharge device of a kind of liquid gas of the utility model embodiment.
Fig. 2 is the anti-overcharge apparatus structure schematic diagram of a kind of liquid gas of the utility model embodiment.
Fig. 3 is the differential pressure transducer cavity schematic diagram of the utility model embodiment.
The canned body of 1 liquid gas, 2 intelligent agents, 3 differential pressure transducer cavitys, 4 the 3rd cables, 5 water influent pipeline, 6 water influent pipeline solenoid valves, 7 first cables, 8 second cables, 9 first temperature transducers, 10 second temperature transducers, 11 low pressure skirt pipelines, 12 high pressure skirt pipelines.
201 main body covers, 202 bottom panel 203 photovoltaic module plates, 204 battery pack, 205 the 4th cables, 206 keyboard buttons, 207 display screens, 208 control circuit boards, 209 first water joints, 210 second water joints, 211 the 3rd water joints, 212 warning devices, 213 upper cover perspective portions.
2081 microprocessors, 2082 storage unit, 2083 power control circuits, 2084 wireless transport modules, 2085 reset circuits.
31 low-pressure ports, 32 high pressure port, 33T type pipe, 34 differential pressure transducer cavitys.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement and concrete accompanying drawing.
Embodiment one
See Fig. 1, the first temperature transducer 9, second temperature transducer 10 is provided with in liquid gas tank body, described first temperature transducer 9 to the second sensor 10 is comparatively first filled liquid by liquid gas and arrives, be provided with certain distance between described first temperature transducer 9 and the second temperature transducer 10, fill more than 30 seconds time for good to fill liquid.
Described first temperature transducer 9 records temperature decrease and is and fills liquid and arrive, or pre-set warm cold parameter, when temperature reach the cold parameter of described temperature be fill liquid arrive, described first temperature transducer 9 records temperature data by the first cable 7, connect microprocessor through the first water joint 209, microprocessor according to the parameter of the temperature decrease preset and or preset warm cold parameter decision and fill liquid and whether arrive the first temperature transducer 9; If not, then mourn in silence; If arrive, then send instruction to emergency alarm 212 immediately, start alarm sounds.
Described second temperature transducer 10 record temperature decrease be fill liquid arrive, or pre-set warm cold parameter, when temperature reach the cold parameter of described temperature be fill liquid arrive, described second temperature transducer 10 records temperature data by the second cable 8, connect microprocessor through the second water joint 210, microprocessor according to the parameter of the temperature decrease preset and or preset warm cold parameter decision and fill liquid and whether arrive the second temperature transducer; If not, then mourn in silence; If arrive, then send instruction to solenoid valve 6 immediately, close fluid inlet valve.
Embodiment two
Described microprocessor gap sensor 6 numerical value is monitored, and described gap sensor 6 numerical value reaches default first differential pressure numerical value, sends instruction immediately to emergency alarm 214, starts alarm; Described gap sensor 6 numerical value reaches default second differential pressure numerical value, then send instruction to solenoid valve 6 immediately, closes fluid inlet pipeline 5.
Embodiment three
Storage battery 204, control circuit board 208, the display screen 215 as redundant electrical power is provided with in main body cover 201; Photovoltaic module plate 203 is connected to described storage battery 204 and control circuit board 208 by the 4th cable 216, and photovoltaic module plate 203 can charge to battery pack 204 when generating electricity and power to control circuit board 208; Described control circuit board 208 comprises: microprocessor 2081, storage element 2082, power control circuit 2083, wireless transmission unit 2084 and reset circuit 2085.
Described main body cover 201 is provided with upper cover above, cover on described and be provided with for the perspective portion 215 of display screen display with for manually-operated keyboard button 206, described upper cover draw-in groove and main body cover clamp and seal, corner stud is fixed, thus the parts that can take out in main body cover, described draw-in groove sealing adopts polytetrafluoroethylmaterial material sealing.
The measurement numerical value of described display screen 207 for obtaining handled by display measurement circuit, display location is inner in main body cover 1, and through main body cover upper cover perspective, portion 213 is visual, can protect display screen, extends its working life.
Main body cover 201 is fixed on base plate 202, connects photovoltaic module plate 203 by the 4th cable 205, and described photovoltaic module plate 203 changes into electric energy the solar energy absorbed, and to be transported to battery pack 204 by described 4th cable 205 for subsequent use.
Embodiment four
See Fig. 2 and Fig. 3, draw the second skirt 11 from tank inner top and connect differential pressure low-pressure port 31, differential pressure transducer cavity 34 is arrived in bleed mutually, and in tank, lower curtate is drawn the first skirt 12 and connected differential pressure high pressure port 32, draw liquid phase and or gas phase to differential pressure transducer cavity 34.Built-in differential pressure transducer in the middle of described differential pressure transducer cavity 34, stainless steel isolation diaphragm is established in both sides, and differential pressure signal line, is connected with control circuit board 208 through main body cover 201 by T-shaped pipe 33.
Although the utility model with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (10)
1. the anti-overcharge device of liquid gas; comprise: signal acquisition module, signal processing module, security protection module and passive power module; described signal acquisition module is connected with signal processing module by cable; described signal processing module is connected with security protection module by cable, and described passive power module is powered to signal acquisition module, signal processing module and security protection module by cable.
2. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, described signal acquisition module comprises the first temperature transducer, the second temperature transducer, differential pressure transducer;
Tested liquid medium is through described first temperature transducer, temperature decrease, reach preset parameter value very soon, the signal that described first temperature transducer records flows through the first cable and carries to microprocessor, first cable is connected with the control circuit board in main body cover through the first water joint, and signal flows through control circuit board and arrives microprocessor;
Tested liquid medium is through described second temperature transducer, temperature decrease, reach preset parameter value very soon, the signal that described second temperature transducer records flows through the second cable and carries to microprocessor, second cable is connected with the control circuit board in main body cover through the second water joint, and signal flows through control circuit board and transmits microprocessor;
And/or record differential pressure signal stream by differential pressure transducer described in tested liquid medium, transmit microprocessor by signaling line by control circuit board.
3. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, described signal processing module comprises: main body cover, rigid rack body, is provided with battery pack, control circuit board, display screen in described main body cover;
Described control circuit board comprises: microprocessor, storage element, power control circuit, wireless transmission unit and reset circuit;
Described microprocessor records signal stream to the first temperature transducer and carries out logical operation, sends instruction to power control circuit, after power control circuit receives instruction, starts alarm module alarm;
Described microprocessor carries out logical operation to the signal stream that the second temperature transducer records, and sends instruction to power control circuit, after power control circuit receives instruction, closes water influent pipeline solenoid valve;
Described microprocessor gap sensor numerical value is monitored, and starts alarm; Send instruction to solenoid valve, close fluid inlet valve;
Described reset circuit, is resetted to operation system by manual pushbutton or controlled in wireless.
4. the anti-overcharge device of liquid gas as claimed in claim 3, it is characterized in that, described security protection module comprises alarm module and water influent pipeline solenoid valve;
Described alarm module comprises buzzer, LED flashing light, and described LED flashing light adopts the LED flashing light of color redness, or the red green LED flashing light replaced, and described buzzer, flashing light can manually arrange;
Described water influent pipeline solenoid valve is connected with described control circuit board by the second cable, and described control circuit board passes through power-on or powered-down shut electromagnetic valve and then water influent pipeline.
5. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, solar energy is converted to electric energy by the first cable for measuring circuit and described control circuit board provide power supply by described photovoltaic module plate, store electric energy in storage battery, when photovoltaic module plate does not receive solar energy, described battery pack powers to described measuring circuit and described control circuit board simultaneously.
6. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, described battery pack comprises the first storage battery and the second power storage cell, described first storage battery is main for battery, described second storage battery is stand-by power supply pond, when main confession battery is inoperable, powered by reserve battery.
7. the anti-overcharge device of liquid gas as claimed in claim 5, it is characterized in that, described differential pressure transducer cavity, middle built-in differential pressure transducer, two ends are divided into differential pressure high pressure port and differential pressure low-pressure port, wherein differential pressure high pressure port connects LNG tank bottom by the first pipeline, draw LNG liquid phase and or gas phase to differential pressure transmitter cavity, differential pressure low-pressure port connects LNG tank top by the second pipeline, draw LNG gas phase to pressure sensor cavity, differential pressure signal line, is connected with control circuit board through main body cover by T-shaped pipe.
8. the anti-overcharge device of liquid gas as claimed in claim 7, it is characterized in that, described differential pressure transducer cavity is that low temperature resistant carbon steel material is formed, parellel is become with main body cover, the stainless steel all-welded structure that positive and negative cavity pressure interface is internal thread is formed, and is arranged on measuring channel or by pressure inlet tube connects by internal thread pressure interface.
9. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, described first water joint, the second water joint, the 3rd water joint is installed on the homonymy of main body cover or non-homonymy.
10. the anti-overcharge device of liquid gas as claimed in claim 1, it is characterized in that, described main body cover is cube or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751109.9U CN205014027U (en) | 2015-09-26 | 2015-09-26 | Liquid gas anti -overcharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751109.9U CN205014027U (en) | 2015-09-26 | 2015-09-26 | Liquid gas anti -overcharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205014027U true CN205014027U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520751109.9U Expired - Fee Related CN205014027U (en) | 2015-09-26 | 2015-09-26 | Liquid gas anti -overcharging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205014027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502402A (en) * | 2018-04-24 | 2018-09-07 | 胜利油田大源节能设备有限公司 | A kind of tank side alarm indication instrument |
-
2015
- 2015-09-26 CN CN201520751109.9U patent/CN205014027U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502402A (en) * | 2018-04-24 | 2018-09-07 | 胜利油田大源节能设备有限公司 | A kind of tank side alarm indication instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180926 |