CN205023835U - Portable vapor recovery system gas -liquid compares dynamic monitoring system - Google Patents
Portable vapor recovery system gas -liquid compares dynamic monitoring system Download PDFInfo
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- CN205023835U CN205023835U CN201520570044.8U CN201520570044U CN205023835U CN 205023835 U CN205023835 U CN 205023835U CN 201520570044 U CN201520570044 U CN 201520570044U CN 205023835 U CN205023835 U CN 205023835U
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Abstract
The utility model discloses a portable vapor recovery system gas -liquid compares dynamic monitoring system, this monitoring system includes control module, the vapor recovery system device, the fluid flowmeter, gas flowmeter, display device and for test liquid storage pot, the fluid flowmeter is connected with control module, vapor recovery system device one end and filling station underground oil storage tank connected, the other end and oil storage tank connected for the test, gas flowmeter is equipped with at the vapor recovery system device with between testing with the oil storage tank, this gas flowmeter and control module carry out the communication through the RS485 interface. Display device and control module are connected for real -time show current refuel the velocity of flow, the vapor recovery system velocity of flow, volume read -out, oil gas volume, gas -liquid when the velocity of flow compare the isoparametric. The utility model discloses when dynamic monitoring, the oil gas volume that can gather the petrol volume in the oil tank simultaneously, in real time and collect when refueling. The utility model discloses need not not manually enter the volume read -out and oil gas volume, show the result on display device at last, realize that the dynamic monitoring gas -liquid compares.
Description
Technical field
The utility model relates to oil gas recovery system of gas station field of research, and particularly a kind of Portable oil-gas reclaims gas liquid ratio dynamic monitoring system.
Background technology
Domestic oil vapour pollution is administered more late, but installs secondary oil-gas recovery device along with petrol service station starts to popularize, and detecting its gas liquid ratio is detect one of whether satisfactory critical item of oil-gas recovery device.Country's gasoline station oil gas discharge standard (GB20952-2007) specifies that the gas liquid ratio of various oil gas recovery system of gas station all should be more than or equal to 1.0 and be less than or equal within 1.2 scopes.In gas recovery system for oil, gas liquid ratio refers to the oil gas volume collected when refueling and the ratio simultaneously adding the gasoline-volume in fuel tank, that is:
At present, in existing bunkering facilities manufacturer, the gas liquid ratio of petroleum vapor recovery product is tested, when situations such as the detection of petrol service station bunkering facilities gas recovery system for oil gas liquid ratio and the adjustments of mechanical type petroleum vapor recovery gas liquid ratio, test the test of buying oil that gas liquid ratio all needs to carry out repeatedly, then manual record volume read-out and oil and gas content, finally carries out calculating gas liquid ratio again.This test method time and effort consuming, especially carries out at petrol station scene buying oil, oil return is very difficult, there is personal error simultaneously.
Have a kind of gas liquid ratio detector to be the measurement utilizing shutoff type flow counter to carry out oil gas instant flow rate at present, calculate reclaimed oil gas volume by average discharge and sampling time, more manually input volume read-out calculates gas liquid ratio again.This detector has following shortcoming: (1) detector master control is the common micro controller system of 8, and the measuring precision is not high; (2) multiple stage check implement must be equipped with when carrying out petrol service station index acceptance test, be not easy to carry and carry, also increasing equipment operating complexity; (3) need manually to input volume read-out, can not store in real time gas liquid ratio data, for further analyzing oil and gas recovery system causes difficulty.
Therefore, provide a kind of portable, simple to operate, precision is high, can automatically calculate gas liquid ratio and preserve gas liquid ratio monitoring system and method there is significant application value.
Utility model content
The purpose of this utility model is that the shortcoming overcoming prior art is with not enough, a kind of Portable oil-gas is provided to reclaim gas liquid ratio dynamic monitoring system, this monitoring system has portable, simple to operate, that precision is high advantage, can change by its gas liquid ratio of Real Time Observation in observation process, real-time storage is carried out to data simultaneously, improve the work efficiency that gas recovery system for oil experimental test is analyzed.
The purpose of this utility model is realized by following technical scheme: a kind of Portable oil-gas reclaims gas liquid ratio dynamic monitoring system, comprise control module, device for recovering oil and gas, fluid flow counter, gas flow counter, read out instrument and test fluid reservoir, be connected with control module wire for detecting the current test fluid flow counter of the gasoline-volume in fluid reservoir that adds, described device for recovering oil and gas one end is connected with underground oil tank of gasoline station by conduit, the other end is connected with test petrol storage tank by conduit, connecting duct between device for recovering oil and gas and test petrol storage tank is provided with gas flow counter, this gas flow counter and control module carry out communication by RS485 interface, described read out instrument is connected with control module, for the gas liquid ratio of the current calculating of real-time display control module.The utility model is when testing, and the oil gas volume collected when can gather the gasoline-volume in fuel tank side by side, in real time and refuel, need not manually input volume read-out and oil and gas content, on the display apparatus by result display, realizes dynamic monitoring gas liquid ratio finally.
Preferably, described device for recovering oil and gas comprises oil-gas recovery vacuum pump and gas liquid ratio adapter, and nozzle is provided with petroleum vapor recovery hole, and described gas liquid ratio adapter is arranged on described petroleum vapor recovery hole place before oiling, is connected with the barrel closure of nozzle; Described oil gas through gas flow counter, gas liquid ratio adapter, petroleum vapor recovery hole, oil-gas recovery vacuum pump, finally enters underground oil tank of gasoline station successively.
Further, sealed by O type circle between described gas liquid ratio adapter and the gun barrel of nozzle.Thus ensure the sealing between nozzle gun barrel and gas liquid ratio adapter.
Preferably, described petroleum vapor recovery gas liquid ratio dynamic monitoring system also comprises memory module, and this memory module is connected with control module.Thus not only can dynamic monitoring gas liquid ratio, related data can also be preserved in real time, be convenient to inquiry below.
Preferably, described control module comprises the multiple communication interfaces such as I2C interface, USART interface, SPI interface, CAN interface, USB2.0 interface, SDIO interface, RS485 interface.The way of output due to existing gas flow counter has the various ways such as impulse singla, current signal, RS485 serial communication, and control module arranges polytype interface, goes for dissimilar gas flow counter.
Further, described control module adopts STM32 development board.This development board comprises multiple dissimilar communication interface, has the advantage that frequency of operation is high, acquisition speed is fast.
Further, described control module also comprises a sound and light alarm module, for gas liquid ratio lower than 1.0 or higher than 1.2 time externally report to the police.
Preferably, the operating system in described control module adopts RT-Thread real time operating system (RTOS).Adopt RT-Thread real time operating system (RTOS) to carry out data acquisition and measure application and development and there is efficient, stable advantage.
Preferably, described fluid flow counter comprises volume flow conv and coder, and described volume flow conv is connected with coder, and described coder is connected with control module.Described volume flow conv is used for oiling flow signal being converted to amount of piston displacement and exports, amount of piston displacement is converted to impulse singla through coder, fluid flow counter establishes mapping relations by flow, displacement, pulse three physical quantitys, the number of pulse finally reflects the size of flow, and its survey precision is less than 0.3%.Control module draws the size of oiling flow by acquisition pulse calculated signals.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, the utility model detects the current gasoline-volume added in test fluid reservoir in real time by fluid flow counter, the current oil gas volume passed through is detected in real time by gas flow counter, need not manually input volume read-out and oil and gas content, automatically gather both signals by system and calculate gas liquid ratio, improve testing efficiency.
2, the utility model control module can adopt control desk to carry out modularization, thus the frame mode of composition control plate+flow counter, have system bulk little, be convenient for carrying, advantage that cost is low.
3, the utility model fluid flow counter comprises volume flow conv and coder, thus can convert oiling flow signal to output of pulse signal to control module, largely improves the survey precision of volume read-out.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of embodiment 1.
Fig. 2 is the elementary diagram of the STM32 development board adopted in embodiment 1.
Fig. 3 is the elementary diagram of the TF data storing card adopted in embodiment 1.
Fig. 4 is the elementary diagram of the LCDs adopted in embodiment 1.
Fig. 5 is method of work diagram of circuit in embodiment 1.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
Gas liquid ratio refers to the ratio of the gasoline-volume that measured gas volume and fuel charger measure simultaneously, can be understood the recovering effect of gas recovery system for oil by the detection of gas liquid ratio.As shown in Figure 1, a kind of Portable oil-gas of the present embodiment reclaims gas liquid ratio dynamic monitoring system, and comprise control module, device for recovering oil and gas, fluid flow counter, gas flow counter, read out instrument and test fluid reservoir, wherein control module adopts STM32 development board.Device for recovering oil and gas comprises oil-gas recovery vacuum pump, gas liquid ratio adapter, and fluid flow counts the flow counter that fuel charger carries, and specifically comprise volumetric flow conv and coder, coder is connected with control module.
As shown in Figure 1, fluid flow counter is connected with STM32 development board wire, and gas liquid ratio adapter is arranged on the gun barrel at nozzle petroleum vapor recovery hole place before oiling, by the sealing of O type circle between gas liquid ratio adapter and nozzle gun barrel.One end, petroleum vapor recovery hole is connected with test fluid reservoir by conduit, and the other end is connected with oil-gas recovery vacuum pump by conduit, and oil-gas recovery vacuum pump is connected with underground oil tank of gasoline station; Described gas flow counter is arranged on the connecting duct between petroleum vapor recovery hole and test fluid reservoir.Gasoline in underground oil tank of gasoline station, under fuel charger effect, is transported in test petrol storage tank by nozzle oil outlet.
In the present embodiment, STM32 development board adopts STM32F103ZET6 core board, its elementary diagram is shown in Fig. 2, and this development board has the frequency of operation of the highest 72MHz, nearly the built-in SRAM of 64K byte, CPU with 0 latent period access (read/write), can be used for high-speed data acquisition (HSDA).There are nearly 13 communication interfaces simultaneously, specifically comprise and reach 2 I2C interfaces (supporting SMBus/PMBus), nearly 5 USART interfaces (support ISO7816, LIN, IrDA interface and modulation /demodulation control), nearly 3 SPI interfaces (18M bps, wherein 2 reusables are I2S interface), 1 CAN interface (2.0B acquiescence), 1 USB2.0 full speed interface and 1 SDIO interface.Utilize high-speed data acquisition (HSDA) and the multiple communication interface of STM32 development board, data acquisition can be carried out to the gas flow counter of multiple different output signal mode.
In the present embodiment, control module is also connected with a TF data storing card, and the connection principle of this memory card is shown in Fig. 3, can preserve the related data after that STM32 development board receives and process in real time, be convenient to inquiry below by this memory card.
In the present embodiment, control module also comprises a sound and light alarm module, for gas liquid ratio lower than 1.0 or higher than 1.2 time externally report to the police.The Warning light of can be buzzer phone also can be several different colours.
Read out instrument in the present embodiment adopts 12864 LCDs, and the interconnecting wiring diagram of this LCDs is shown in Fig. 4.The signal value that control module will show is sent on this read-out and shows, such as to oiling flow velocity, petroleum vapor recovery flow velocity, volume read-out, oil and gas content, gas-liquid when velocity ratio etc. show, according to the value gathered, linear expression can also be carried out by two-dimensional coordinate figure.
In the present embodiment, the operating system in described control module adopts RT-Thread real time operating system (RTOS).RT-Thread real time operating system (RTOS) it be not only a efficient, stable real-time kernel, also be the software platform of a set of embedded system, cover the Realtime Operating System Nucleus entirely seized, small and exquisite and irrelevant with bottom specific implementation file system, light-duty ICP/IP protocol stack and light-duty multiwindow multithreading graphic user interface.
The method of work of the present embodiment, flow process as shown in Figure 5, comprises step:
(1) system initialization, is arranged on nozzle gas liquid ratio adapter on the gun barrel at nozzle petroleum vapor recovery hole place, connects each wire and conduit in system.Then power on and carry out self-inspection, if self-inspection success, then continue step (2) below, otherwise display failure message, prompting maintenance.
(2) dynamic monitoring is opened: the gasoline in underground oil tank of gasoline station is under fuel charger effect, be transported in test petrol storage tank by nozzle oil outlet, the electric impulse signal that the fluid flow counter that fluid flow counter is carried by extraction fuel charger itself exports is to control module, the current gasoline-volume added in test fluid reservoir of real-time detection, its process is see shown in the solid line in Fig. 1.Meanwhile, oil-gas recovery vacuum pump in device for recovering oil and gas starts action, oil gas in test petrol storage tank is successively by turning back in underground oil tank of gasoline station after gas flow counter, gas liquid ratio adapter, petroleum vapor recovery hole, oil-gas recovery vacuum pump, gas flow signals is converted to electric impulse signal by Hall magnetic induction part and exports to control module by gas flow counter, the current oil gas volume passed through of real-time detection, its process is see shown in the dotted line in Fig. 1.
(3) after control module receives the impulse singla that fluid flow counter and gas flow counter transmit, carry out shaping and data processing, calculate gas liquid ratio, judge whether gas liquid ratio is less than 1.0 or higher than 1.2, if, then control sound and light alarm module to report to the police, then enter step (4); Otherwise directly enter step (4).
(4) control module by current oiling flow velocity, petroleum vapor recovery flow velocity, volume read-out, oil and gas content, gas-liquid when velocity ratio etc. be saved in memory module, and be sent on read out instrument and show.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (8)
1. a Portable oil-gas reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, comprise control module, device for recovering oil and gas, fluid flow counter, gas flow counter, read out instrument and test fluid reservoir, be connected with control module wire for detecting the current test fluid flow counter of the gasoline-volume in fluid reservoir that adds, described device for recovering oil and gas one end is connected with underground oil tank of gasoline station by conduit, the other end is connected with test petrol storage tank by conduit, connecting duct between device for recovering oil and gas and test petrol storage tank is provided with gas flow counter, this gas flow counter and control module carry out communication by RS485 interface, described read out instrument is connected with control module, for the gas liquid ratio of the current calculating of real-time display control module.
2. Portable oil-gas according to claim 1 reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, described device for recovering oil and gas comprises oil-gas recovery vacuum pump and gas liquid ratio adapter, nozzle is provided with petroleum vapor recovery hole, described gas liquid ratio adapter is arranged on described petroleum vapor recovery hole place before oiling, is connected with the barrel closure of nozzle; Described oil gas through gas flow counter, gas liquid ratio adapter, petroleum vapor recovery hole, oil-gas recovery vacuum pump, finally enters underground oil tank of gasoline station successively.
3. Portable oil-gas according to claim 2 reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, by the sealing of O type circle between described gas liquid ratio adapter and the gun barrel of nozzle.
4. Portable oil-gas according to claim 1 reclaims gas liquid ratio dynamic monitoring system, and it is characterized in that, described petroleum vapor recovery gas liquid ratio dynamic monitoring system also comprises memory module, and this memory module is connected with control module.
5. Portable oil-gas according to claim 1 reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, described control module comprises following communication interface: I2C interface, USART interface, SPI interface, CAN interface, USB2.0 interface, SDIO interface, RS485 interface.
6. Portable oil-gas according to claim 5 reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, described control module adopts STM32F103ZET6 core board.
7. Portable oil-gas reclaims gas liquid ratio dynamic monitoring system according to claim 1 or 5, and it is characterized in that, described control module also comprises a sound and light alarm module, for gas liquid ratio lower than 1.0 or higher than 1.2 time externally report to the police.
8. Portable oil-gas according to claim 1 reclaims gas liquid ratio dynamic monitoring system, it is characterized in that, described fluid flow counter comprises volume flow conv and coder, and described volume flow conv is connected with coder, and described coder is connected with control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520570044.8U CN205023835U (en) | 2015-07-30 | 2015-07-30 | Portable vapor recovery system gas -liquid compares dynamic monitoring system |
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| CN201520570044.8U CN205023835U (en) | 2015-07-30 | 2015-07-30 | Portable vapor recovery system gas -liquid compares dynamic monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016287A (en) * | 2015-07-30 | 2015-11-04 | 托肯恒山科技（广州）有限公司 | Portable oil gas recovery gas-liquid ratio dynamic monitoring system and monitoring method |
| CN107697879A (en) * | 2017-09-27 | 2018-02-16 | 北京恒合信业技术股份有限公司 | A kind of on-line monitoring system for oil gas recovery of gas station |
-
2015
- 2015-07-30 CN CN201520570044.8U patent/CN205023835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016287A (en) * | 2015-07-30 | 2015-11-04 | 托肯恒山科技（广州）有限公司 | Portable oil gas recovery gas-liquid ratio dynamic monitoring system and monitoring method |
| CN107697879A (en) * | 2017-09-27 | 2018-02-16 | 北京恒合信业技术股份有限公司 | A kind of on-line monitoring system for oil gas recovery of gas station |
| CN107697879B (en) * | 2017-09-27 | 2024-01-26 | 北京恒合信业技术股份有限公司 | Oil gas recovery on-line monitoring system of filling station |
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