CN206772973U

CN206772973U - A kind of gas liquid ratio self-detecting instrument

Info

Publication number: CN206772973U
Application number: CN201720408431.0U
Authority: CN
Inventors: 范大明
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2017-12-19
Anticipated expiration: 2027-04-19

Abstract

The utility model discloses a kind of gas liquid ratio self-detecting instrument, including：Oil gun adapter, handheld terminal；The oil gun adapter sets air intake corresponding with fuel tank gas outlet, and the oil gun adapter connects industrial PD flowmeters by oil-gas pipeline, and the industrial PD flow meter signals output end connects the handheld terminal by signal wire；Circuit is set in the handheld terminal, and the circuit includes：Main controller module, and the main controller module peripheral hardware key-press module, display module；The industrial PD flowmeters pass through photoelectrical coupler PC817 connection main controller modules as sensor assembly.The utility model is simple in construction, easy to use, is easy to repair, and production cost is low, easy to spread.

Description

A kind of gas liquid ratio self-detecting instrument

Technical field

Petroleum vapor recovery field is the utility model is related to, specifically a kind of gas liquid ratio self-detecting instrument.

Background technology

Gas station is that automobile adds gasoline to pollute air by the exhaust of oil in fuel tank into air to during fuel tank.

2008 Beijing is introduced and the large-scale use technology and equipment of gas station's secondary oil gas recovery from external first. Beijing Environmental Protection Agency in 2010 has formulated " gasoline station oil gas discharge controls and limit value " standard.Wherein require every to add nozzle every time The oil and gas content reclaimed when oily adds away 1 with adding away the Ratio control of oil mass to be asked 1.0% to 1.2% from oil storage tank Gasoline is risen, 1 to 1.2 liter of oil gas need to be withdrawn and returned in oil storage tank.This numerical value is the one most heavy of control gasoline station oil gas discharge Index is wanted, is claimed " gas liquid ratio " (A/L)., can be basic during gas station's sale gasoline if gas liquid ratio can be kept to reach this standard Accomplish that oil gas is not discharged or is discharged into less in air, it is therefore desirable to which one be enclosed on during petroleum vapor recovery can real-time display gas flow rate With flow and the device of gas liquid ratio.

Utility model content

In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of this new gas liquid ratio certainly Instrument is examined, during the present apparatus uses industrial PD flowmeters as petroleum vapor recovery, measures oil gas flow velocity and flow, and show at the end Gas liquid ratio is shown, industrial PD flows are as high-precision flow sensor so that the utility model gas liquid ratio self-detecting instrument, hold eventually End accurately have recorded oil gas flow velocity, flow and gas liquid ratio, and the utility model is simple in construction, easy to use, be easy to repair.

To achieve these goals, this gas liquid ratio self-detecting instrument, including：Oil gun adapter, handheld terminal；The oil gun adaptation Device sets air intake corresponding with fuel tank gas outlet, and the oil gun adapter connects industrial PD flowmeters by oil-gas pipeline, The industrial PD flow meter signals output end connects the handheld terminal by signal wire；Circuit is set in the handheld terminal, The circuit includes：Main controller module, and the main controller module peripheral hardware key-press module, display module；The industrial PD Flowmeter passes through photoelectrical coupler PC817 connection main controller modules as sensor assembly.

Further, the main controller module includes single chip computer AT mega128 and its minimum system.

Further, the main controller module peripheral power supply management module, the power management module include power module With voltage management module, institute's power management module sets power switch key KEY POWER, and the voltage management module uses LTC3400 voltage-stablizers.

Further, the main controller module extends out EPROM using chip 24C1024.

Further, the display module uses LCD1602 liquid crystal displays.

Further, the industrial PD flowmeters also set up gas outlet.

Clock module preferably, outside the master controller mould is set as of the present utility model, and the clock module uses The low-power consumption real-time timepiece chip DS1302 of trickle current charging ability.

Compared with prior art, the beneficial effects of the utility model are as follows：

During the utility model uses industrial PD flowmeters as petroleum vapor recovery, measurement oil gas flow velocity and flow, and At the end of show gas liquid ratio, industrial PD flows are as high-precision flow sensor so that the utility model gas liquid ratio self-test Instrument, accurately detect and have recorded oil gas flow velocity, flow and gas liquid ratio, and the utility model is simple in construction, it is easy to use, just In maintenance, production cost is low, easy to spread.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is circuit module schematic diagram in handheld terminal of the present utility model；

Fig. 3 is the physical circuit schematic diagram of the utility model main controller module；

Fig. 4 is the utility model sensor assembly physical circuit schematic diagram；

Fig. 5 is the utility model power module physical circuit schematic diagram；

Fig. 6 is the utility model voltage management module physical circuit schematic diagram；

Fig. 7 is the utility model key-press module physical circuit schematic diagram；

Fig. 8 is the utility model display module physical circuit schematic diagram；

Fig. 9 is that the utility model extends out EPROM physical circuit schematic diagrams；

Figure 10 is the utility model clock module physical circuit schematic diagram.

Embodiment

The utility model is described further below in conjunction with the accompanying drawings.

As shown in figure 1, this gas liquid ratio self-detecting instrument, including：Oil gun adapter, handheld terminal；The oil gun adapter is set Air intake corresponding with fuel tank gas outlet, and the oil gun adapter connects industrial PD flowmeters, industrial PD by oil-gas pipeline Flowmeter is also known as volume-displacement, and volume-displacement is continuously divided into fluid single known using mechanical measurement element Volume fractiion, the number for being gradually repeatedly full of according to measuring chamber and discharging the volume fractiion fluid is total to measure fluid volume Amount.

The industrial PD flow meter signals output end connects the handheld terminal by signal wire；Set in the handheld terminal Circuits, the circuit include：Main controller module, and the main controller module peripheral hardware key-press module, display module；It is described Industrial PD flowmeters pass through photoelectrical coupler PC817 connection main controller modules as sensor assembly.

Further, the main controller module extends out EPROM using chip 24C1024.

Further, the display module uses LCD1602 liquid crystal displays.

Further, the industrial PD flowmeters also set up gas outlet.

Clock module preferably, outside the master controller mould is set as of the present utility model, and the clock module uses The low-power consumption real-time timepiece chip DS1302 of trickle current charging ability, it is ensured that the degree of accuracy of present apparatus time.

Specific embodiment of the present utility model is as follows：

The oil gun adapter insertion fuel tank gas outlet, the oil gas of recovery flow into the industrial PD flows by oil-gas pipeline Meter, finally the gas outlet outside industrial PD flowmeters is flowed out and reclaimed.The industrial PD flowmeters are hand-held as sensor connection Photoelectrical coupler PC817 in terminal, display module Dynamic Announce throughput and gas velocity outside the main controller module, most What lower section was shown adjusts current time for current time and keys available module, inputs and refuels in the handheld terminal before refueling Amount, oiling finish display module and show gas liquid ratio；It is described to extend out EPROM storage history gas liquid ratio records, and can use the button Module polls historical record；The key-press module also supports the backlight illumination to the display module LCD1602 liquid crystal displays Regulation.

Claims

A kind of 1. gas liquid ratio self-detecting instrument, it is characterised in that including：Oil gun adapter, handheld terminal；The oil gun adapter is set Air intake corresponding with fuel tank gas outlet, and the oil gun adapter connects industrial PD flowmeters, the work by oil-gas pipeline Industry PD flow meter signals output end connects the handheld terminal by signal wire；Circuit, the electricity are set in the handheld terminal Road includes：Main controller module, and the main controller module peripheral hardware key-press module, display module；The industrial PD flowmeters Pass through photoelectrical coupler PC817 connection main controller modules as sensor assembly.
2. a kind of gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that the main controller module includes monolithic Machine ATmega128 and its minimum system.
A kind of 3. gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that the main controller module external power Management module, the power management module include power module and voltage management module, and institute's power management module sets power supply to open Crucial KEY POWER, the voltage management module use LTC3400 voltage-stablizers.
4. a kind of gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that the main controller module uses chip 24C1024 extends out EPROM.
5. a kind of gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that the display module uses LCD1602 Liquid crystal display.
6. a kind of gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that the industrial PD flowmeters are also set up out Gas port.
7. a kind of gas liquid ratio self-detecting instrument according to claim 1, it is characterised in that clock is set outside the master controller mould Module, and the clock module uses the low-power consumption real-time timepiece chip DS1302 of trickle current charging ability.