A gas-liquid ratio testing device and secondary oil and gas recovery system

Abstract

The present application provides a gas-liquid ratio testing device and a secondary oil and gas recovery system, which relate to the field of oil and gas recovery technology. The gas-liquid ratio testing device includes a simulated oil tank, an ORVR oil gun, an adapter, a filling pipe, and a metering component. The simulated oil tank has an oil filling pipe, and the oil filling pipe includes a non-ORVR oil tank filling pipe and an ORVR oil tank filling pipe; the adapter and the ORVR oil gun are detachably connected; the ORVR oil gun can at least switch between a first state of being plugged in with the non-ORVR oil tank filling pipe and a second state of being plugged in with the ORVR oil tank filling pipe; the metering component is connected to the adapter, and the metering component can measure the volume of gas flowing through the transit oil and gas recovery channel. The gas-liquid ratio testing device provided in the present application is compatible with oil guns with ORVR function and oil guns without ORVR function.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas recovery, and in particular to a gas-liquid ratio testing device and a secondary oil and gas recovery system. Background Art

[0002] The secondary oil and gas recovery system of a gas station is a system that replaces the oil and gas in the user's tank with the oil tank below, and at the same time adds oil to the user's tank; secondary oil and gas recovery is generally achieved with the help of a vacuum pump. The relevant gas-liquid ratio standard requires that when refueling a car without ORVR, the gas-liquid ratio is maintained between 1:1 and 1:1.2; when refueling a car with ORVR, the gas-liquid ratio is required to be below 0.5. In order to test whether the gas-liquid ratio meets the requirements, it is necessary to use a calibrated gas flow meter to test the volume of gas drawn by the vacuum pump, and at the same time obtain the volume of gas refueled by the gas dispenser. The ratio of these two volumes is used to obtain the gas-liquid ratio. However, since most gas stations use ORVR oil guns, the gas-liquid ratio test device on the market cannot be compatible with the simulation test of non-ORVR tanks and ORVR tanks when testing the gas recovery system of gas stations. Summary of the invention

[0003] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and to provide a gas-to-liquid ratio testing device and a secondary oil and gas recovery system that are compatible with simulation testing of non-ORVR oil tanks and ORVR oil tanks.

[0004] This application provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a gas-liquid ratio testing device, the gas-liquid ratio testing device comprising:

[0006] A simulated oil tank, wherein the simulated oil tank has an oil filling pipe, wherein the oil filling pipe includes a non-ORVR oil tank oil filling pipe and an ORVR oil tank oil filling pipe;

[0007] An ORVR oil gun, an adapter and a filling pipe, wherein the adapter and the ORVR oil gun are detachably connected, the adapter has a transit oil and gas recovery channel and a transit oil delivery channel, the filling pipe has a first oil and gas recovery channel and a first oil delivery channel, and the ORVR oil gun has a second oil and gas recovery channel and a second oil delivery channel, wherein the transit oil and gas recovery channel, the first oil and gas recovery channel and the second oil and gas recovery channel are connected, and the transit oil delivery channel, the first oil delivery channel and the second oil delivery channel are connected; the ORVR oil gun can at least switch between a first state of being plugged into the non-ORVR oil tank filling pipe and a second state of being plugged into the ORVR oil tank filling pipe;

[0008] A metering piece, the metering piece is connected to the adapter, and the metering piece can measure the volume of the gas flowing through the transfer oil and gas recovery channel;

[0009] An intake valve is connected to the simulated oil tank.

[0010] In some embodiments of the first aspect, the adapter includes a first adapter, the portion of the transit oil and gas recovery channel located on the first adapter is a first transit oil and gas recovery channel, the portion of the transit oil delivery channel located on the first adapter is a first transit oil delivery channel, the first adapter has a first connecting end and a second connecting end, the first connecting end and the ORVR oil gun are detachably connected, the second connecting end and the refueling pipe are detachably connected, the first oil and gas recovery channel passes through the first transit oil and gas recovery channel and the second oil and gas recovery channel, and the first oil delivery channel passes through the first transit oil delivery channel and the second oil delivery channel.

[0011] In some embodiments of the first aspect, the measuring component includes a flow meter, and the first transfer oil and gas recovery channel has a first transfer section and a second transfer section, the first transfer section is connected to the first oil and gas recovery channel, and the second transfer section is connected to the second oil and gas recovery channel; wherein, the first transfer section has an air inlet formed on the outer wall of the first adapter, and the second transfer section has an air outlet formed on the outer wall of the first adapter, and the air inlet is connected to the air outlet through the flow meter.

[0012] In some embodiments of the first aspect, two ends of the first transit oil and gas recovery passage are respectively plugged and sealed with the inner wall of the second oil and gas recovery passage of the ORVR fuel gun and the inner wall of the first oil and gas recovery passage of the refueling pipe, and two ends of the first transit oil delivery passage are respectively plugged and sealed with the inner wall of the second oil delivery passage of the ORVR fuel gun and the inner wall of the first oil delivery passage of the refueling pipe.

[0013] In some embodiments of the first aspect, the first connecting end of the first adapter is provided with a large-diameter shaft section and a small-diameter shaft section in sequence in a direction away from the second connecting end, the first transfer oil delivery channel is provided in the small-diameter shaft section, the outer wall of the small-diameter shaft section is provided with a first groove, the first groove is installed with a first sealing ring, the small-diameter shaft section is passed through the second oil delivery channel, and the first sealing ring abuts against the inner wall of the second oil delivery channel;

[0014] The first transit oil and gas recovery passage extends to the end surface of the shaft shoulder between the large diameter shaft section and the small diameter shaft section, the outer wall of the large diameter shaft section is provided with a second groove, the second groove is installed with a second sealing ring, the large diameter shaft section is penetrated through the second oil and gas recovery passage, and the second sealing ring abuts against the inner wall of the second oil and gas recovery passage;

[0015] The second connecting end of the first adapter is provided with a small-diameter hole section and a large-diameter hole section in sequence in a direction away from the first connecting end, the first transfer oil delivery channel is connected to the small-diameter hole section, the inner wall of the small-diameter hole section is provided with a third groove, the third groove is installed with a third sealing ring, the first oil delivery channel is provided through the small-diameter hole section, and the third sealing ring abuts against the outer wall of the first oil delivery channel;

[0016] The first transit oil and gas recovery channel extends to the hole shoulder between the large diameter hole section and the small diameter hole section, the inner wall of the large diameter hole section is provided with a fourth groove, the fourth groove is installed with a fourth sealing ring, the end of the first oil and gas recovery channel is penetrated by the large diameter hole section, and the fourth sealing ring is abutted against the outer wall of the first oil and gas recovery channel.

[0017] In some embodiments of the first aspect, the measuring element includes a flow meter, the adapter includes a second adapter and a magnet element, the second adapter has a second transit oil and gas recovery channel, a second transit oil delivery channel, a mounting hole, a third connection end and a fourth connection end, the portion of the transit oil and gas recovery channel located in the second adapter is the second transit oil and gas recovery channel, the portion of the transit oil delivery channel located in the second adapter is the second transit oil delivery channel, the second transit oil and gas recovery channel extends from the third connection end to the fourth connection end, the second transit oil delivery channel extends from the third connection end to the fourth connection end, the second transit oil and gas recovery channel and the second The transfer oil delivery channel is connected in series, the installation hole is communicated with the second transfer oil and gas recovery channel, the oil gun nozzle of the ORVR oil gun is sequentially penetrated through the second transfer oil and gas recovery channel, the second transfer oil delivery channel and the oil filling pipe, the magnet is magnetically attracted to the ORVR oil gun, and the third connection end and the oil gun nozzle of the ORVR oil gun are sealed, the end of the fourth connection end and the end of the oil filling pipe are abutted and sealed, the inner wall of the second transfer oil delivery channel and the side wall of the oil gun nozzle are contacted and sealed, the installation hole, the second transfer oil and gas recovery channel, the second oil and gas recovery channel and the first oil and gas recovery channel are connected in series; wherein, the installation hole is communicated with the outside through the flow meter.

[0018] In some embodiments of the first aspect, an elastic sealing gasket is provided in the portion of the second transfer oil delivery channel located at the fourth connecting end, the end surface of the oil filling pipe and the elastic sealing gasket are abutted and sealed, and the inner ring of the elastic sealing gasket and the outer wall of the oil gun nozzle are abutted and sealed.

[0019] In some embodiments of the first aspect, an end of the oil injection pipe is inserted into the second transfer oil delivery channel, and an end surface of the oil injection pipe is abutted and sealed against the elastic sealing gasket;

[0020] The third connection end is provided with a sealing lip, the end of the sealing lip is in contact and sealing connection with the end of the oil gun air cover of the ORVR oil gun, and the end of the sealing lip is configured as an arc surface.

[0021] In some embodiments of the first aspect, the second transit oil and gas recovery channel forms an inlet at the end of the third connection end, and the second transit oil delivery channel forms an outlet at the end of the fourth connection end, the inlet and the outlet are staggered, and the outer wall of the oil gun nozzle has a gun hanging step, and the gun hanging step is located in the second transit oil and gas recovery channel.

[0022] In some embodiments of the first aspect, an anti-static wheel is provided at the bottom of the simulated oil tank;

[0023] An oil collecting groove is arranged on the top of the simulated oil tank, the opening of the oil collecting groove is arranged upward, and the oil filling pipe is located in the oil collecting groove;

[0024] The simulated oil tank has a first drain port, and the oil collecting tank has a second drain port.

[0025] In a second aspect, the present application further provides a secondary oil and gas recovery system, which includes a gas-liquid ratio testing device as described in any one of the above embodiments.

[0026] The embodiments of the present application have the following advantages:

[0027] The present application provides a gas-liquid ratio testing device, which connects an adapter and an ORVR oil gun, and selects a corresponding oil filling pipe (i.e., a non-ORVR tank oil filling pipe or an ORVR tank oil filling pipe) according to the test needs. The filling pipe is connected to the adapter to ensure that all channels are connected. Use an ORVR oil gun to refuel the simulated tank. And during the refueling process, the metering piece records the volume of gas flowing through the transit oil and gas recovery channel. At the same time, the volume of refueling by the refueling pump is recorded. Then, based on the gas volume recorded by the metering piece and the volume of refueling by the refueling pump, the gas-liquid ratio is calculated. Subsequently, the calculated gas-liquid ratio can be compared with the corresponding threshold values. For cars without ORVR function, the threshold of the gas-liquid ratio should be between 1:1 and 1:1.2; for cars with ORVR function, the threshold of the gas-liquid ratio should be below 0.5.

[0028] Obviously, the test device is compatible with the simulation test of non-ORVR oil tanks and ORVR oil tanks, which increases the scope of application of the test device. The gas volume is accurately measured by the metering piece to ensure a more accurate calculation of the gas-liquid ratio. In addition, the detachable connection design of the adapter and the ORVR oil gun makes the test device easy to assemble and disassemble, improving the convenience of operation.

[0029] The present application also relates to a secondary oil and gas recovery system. Since the above-mentioned gas-liquid ratio testing device has the above-mentioned technical effects, the secondary oil and gas recovery system including the gas-liquid ratio testing device should have the same technical effects, which will not be repeated here.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of a simulated oil tank in a gas-liquid ratio testing device provided in one embodiment of the present application is shown;

[0033] Figure 2 A schematic structural diagram of a gas-liquid ratio testing device provided by an embodiment of the present application is shown;

[0034] Figure 3 A partially enlarged schematic diagram of a first adapter in a gas-liquid ratio testing device provided in one embodiment of the present application is shown;

[0035] Figure 4 A schematic structural diagram of a first adapter in a gas-liquid ratio testing device provided in one embodiment of the present application is shown;

[0036] Figure 5 A schematic structural diagram of a gas-liquid ratio testing device provided in another embodiment of the present application is shown;

[0037] Figure 6 A schematic diagram of the assembly of a second adapter in a gas-liquid ratio testing device provided by another embodiment of the present application is shown;

[0038] Figure 7 A schematic structural diagram of a second adapter in a gas-liquid ratio testing device provided in another embodiment of the present application is shown.

[0039] Description of main component symbols:

[0040] 100-simulated oil tank; 200-antistatic wheel; 300-oil collecting tank; 400-intake valve; 500-non-ORVR oil tank filling pipe; 600-ORVR oil tank filling pipe; 700-second drain port; 800-ORVR oil gun; 810-oil gun nozzle; 900-fuel pipe; 1000-first drain port; 1100-first adapter; 1110-intake port; 1120-outlet port; 1130-first connecting end; 1131-small diameter shaft section; 1132 -large diameter shaft section; 1140-first transfer oil delivery channel; 1150-first transfer oil and gas recovery channel; 1151-first transfer section; 1152-second transfer section; 1160-second connecting end; 1161-large diameter hole section; 1162-small diameter hole section; 1200-second adapter; 1210-second transfer oil and gas recovery channel; 1220-second transfer oil delivery channel; 1230-elastic sealing gasket; 1240-installation channel; 1250-sealing lip. DETAILED DESCRIPTION

[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0043] In this application, unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0046] In the related art, the secondary oil and gas recovery system is a system that replaces the oil and gas in the user's oil tank into the bottom oil tank and adds oil to the user's oil tank at the same time;

[0047] There are generally two types of secondary oil and gas recovery, one is the balanced type, which is achieved by the pressure difference balance between the oil tank and the oil tank, and the other is the vacuum-assisted type, which is achieved by the assistance of a vacuum pump. In the vacuum-assisted type, in order to well control the replacement ratio, the relevant standards require that it be maintained between 1:1 and 1:1.2, which results in the pumped-in oil and gas or the mixture of oil and gas and air being greater than the amount of gasoline added, which will cause the pressure of the underground oil tank to rise and need to be exhausted, which will pollute the environment. Due to temperature differences and other reasons, the pressure in the car's own fuel tank will increase, and oil and gas will also overflow, which will pollute the environment. At present, the "Light-duty Vehicle Pollutant Emission Limits and Measurement Methods (China Phase VI)" (GB 18352.6-2016) requires domestic fuel vehicles to meet this standard, and puts forward new requirements for the vehicle's own emissions and emissions during refueling, including emission requirements during refueling. In order to meet this standard, newly produced vehicles need to have their own on-board refueling oil and gas recovery system, ORVR (Onboard Refueling Oil and Gas Recovery System, Onboard Refueling Vapor Recovery System Recovery); The ORVR system comes with a carbon canister that can absorb the oil and gas generated during refueling. At the same time, it can solve the oil and gas generated by factors such as the temperature difference in the car's fuel tank. The ORVR system has a desorption function that desorbs the adsorbed oil and gas and sends it to the internal combustion engine for combustion, thereby achieving recycling and reducing pollutant emissions; in order to achieve its own carbon canister adsorption, ORVR needs to improve the original refueling tank machine and pipelines, one of which is to reduce the diameter of the oil inlet pipe of the refueling pipe to achieve liquid sealing during the refueling process; let the carbon canister absorb the oil and gas in the tank to prevent the oil and gas from overflowing.

[0048] There are cars without ORVR function and cars with ORVR function on the market. Cars without ORVR function will not be newly licensed, but will be kept until they are forced to be scrapped, so the gas gun needs to be applicable to both types of cars until the cars without ORVR function disappear. Among them, the relevant gas-liquid ratio standard requires that when refueling a car without ORVR, the gas-liquid ratio is maintained between 1:1 and 1:1.2; when refueling a car with ORVR, the gas-liquid ratio is required to be below 0.5. In order to test whether the gas-liquid ratio meets the requirements, it is necessary to use a calibrated gas flow meter to test the volume of gas drawn by the vacuum pump, and at the same time obtain the volume of gas refueled by the gas pump. The ratio of these two volumes is used to obtain the gas-liquid ratio. However, since most gas stations use ORVR fuel guns, the gas-liquid ratio test device on the market cannot be compatible with the simulation test of non-ORVR tanks and ORVR tanks when testing the oil and gas recovery system of gas stations.

[0049] As shown in FIGS. 1 and 2 , in order to solve the above technical problems, an embodiment of the present application provides a gas-liquid ratio testing device, which includes a simulated fuel tank 100, an ORVR fuel gun 800, an adapter, a refueling pipe 900, a metering member and an intake valve 400. The simulated fuel tank 100 has a refueling pipe, and the refueling pipe includes a non-ORVR fuel tank refueling pipe 500 and an ORVR fuel tank refueling pipe 600. The adapter and the ORVR fuel gun 800 are detachably connected, the adapter has a transfer oil and gas recovery channel and a transfer oil delivery channel, the refueling pipe 900 has a first oil and gas recovery channel and a first oil delivery channel, and the ORVR fuel gun 800 is detachably connected to the adapter. The RVR oil gun 800 has a second oil and gas recovery channel and a second oil delivery channel, wherein the transit oil and gas recovery channel, the first oil and gas recovery channel and the second oil and gas recovery channel are connected, and the transit oil delivery channel, the first oil delivery channel and the second oil delivery channel are connected; the ORVR oil gun 800 can at least switch between a first state of being plugged in with a non-ORVR tank filling pipe 500 and a second state of being plugged in with an ORVR tank filling pipe 600; a metering piece is connected to an adapter, and the metering piece can measure the volume of gas flowing through the transit oil and gas recovery channel; and the simulated tank 100 is connected with an intake valve 400.

[0050] In these embodiments, the simulated oil tank 100 serves as a role of simulating the oil tank of a vehicle during the real refueling process. That is, the simulated oil tank 100 is connected to an air inlet valve 400, and the opening of the air inlet valve 400 is adjustable, so that the simulated oil tank 100 is used to contain the oil injected during the test and simulate the refueling tank of the car. The simulated oil tank 100 has an oil filling pipe, and the oil filling pipe is provided to include a non-ORVR oil tank filling pipe 500 and an ORVR oil tank filling pipe 600, so that the simulated oil tank 100 simulates the oil tank of a car with ORVR and the oil tank of a car without ORVR, respectively, so that it can simulate different types of vehicle oil tanks, so as to perform different types of oil gun tests.

[0051] The adapter, ORVR oil gun 800 and fuel pipe 900 are connected as described below. The adapter, ORVR oil gun 800 and fuel pipe 900 are connected in series. The adapter, ORVR oil gun 800 and fuel pipe 900 are connected in series. The adapter, ORVR oil gun 800 and fuel pipe 900 are detachably connected, which is convenient for disassembly and assembly.

[0052] Among them, through the above-mentioned structural setting, the transfer oil and gas recovery channel, the first oil and gas recovery channel and the second oil and gas recovery channel are connected; the transfer oil delivery channel, the first oil delivery channel and the second oil delivery channel are connected. The ORVR oil gun 800 can be switched between a first state plugged with a non-ORVR oil tank filling pipe 500 and a second state plugged with an ORVR oil tank filling pipe 600. In other words, by plugging the ORVR oil gun 800 with different filling pipes respectively, the ORVR oil gun 800 can be switched between the first state and the second state.

[0053] The metering element is used to measure the volume of gas flowing through the first transfer oil and gas recovery channel 1150. The metering element is connected to the adapter. The volume of gas recovered during the refueling process can be accurately measured by the metering element, thereby calculating the gas-liquid ratio.

[0054] Obviously, the adapter and the ORVR oil gun 800 are connected, and the corresponding oil filling pipe (i.e., the non-ORVR tank oil filling pipe 500 or the ORVR tank oil filling pipe 600) is selected according to the test needs. Among them, the refueling pipe 900 is connected to the adapter to ensure that all channels are connected. Use the ORVR oil gun 800 to refuel the simulated tank 100. That is, the ORVR oil gun 800 is inserted into the non-ORVR tank oil filling pipe 500 to simulate the test of the non-ORVR tank, and the ORVR oil gun 800 is inserted into the ORVR tank oil filling pipe 600 to simulate the test of the ORVR tank, and during the refueling process, the metering component records the volume of gas flowing through the first transfer oil and gas recovery channel 1150. At the same time, the volume of refueling by the refueling machine is recorded. Then, the gas-liquid ratio is calculated based on the gas volume recorded by the metering component and the volume of refueling by the refueling machine. Subsequently, the calculated gas-liquid ratio can be compared with the corresponding threshold values. For vehicles without ORVR, the threshold value of the gas-liquid ratio should be between 1:1 and 1:1.2; for vehicles with ORVR function, the threshold value of the gas-liquid ratio should be below 0.5.

[0055] Obviously, the test device is compatible with the simulation test of non-ORVR oil tanks and ORVR oil tanks, which increases the scope of application of the test device. The gas volume is accurately measured by the metering piece to ensure a more accurate calculation of the gas-liquid ratio. In addition, the detachable connection design of the adapter and the ORVR oil gun 800 makes the test device easy to assemble and disassemble, improving the convenience of operation.

[0056] like Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the adapter includes a first adapter 1100, the portion of the transit oil and gas recovery channel located at the first adapter 1100 is a first transit oil and gas recovery channel 1150, the portion of the transit oil delivery channel located at the first adapter 1100 is a first transit oil delivery channel 1140, the first adapter 1100 has a first connecting end 1130 and a second connecting end 1160, the first connecting end 1130 and the ORVR oil gun 800 are detachably connected, the second connecting end 1160 and the refueling pipe 900 are detachably connected, the first oil and gas recovery channel is connected to the second oil and gas recovery channel through the first transit oil and gas recovery channel 1150, and the first oil delivery channel is connected to the second oil delivery channel through the first transit oil delivery channel 1140.

[0057] In these embodiments, the first connection end 1130 of the first adapter 1100 is detachably connected to the ORVR oil gun 800. The second connection end 1160 is detachably connected to the refueling pipe 900. The first transfer oil and gas recovery channel 1150 is used to connect the first oil and gas recovery channel and the second oil and gas recovery channel. The first transfer oil delivery channel 1140 is used to connect the first oil delivery channel and the second oil delivery channel.

[0058] Obviously, the ORVR oil gun 800 can be detachably connected to the adapter through the first connection end 1130 of the first adapter 1100. The first adapter 1100 can be detachably connected to the refueling pipe 900 through the second connection end 1160 of the first adapter 1100, which is convenient for replacing and disassembling the oil gun.

[0059] Connect the first connection end 1130 of the first adapter 1100 to the ORVR oil gun 800. Connect the second connection end 1160 of the first adapter 1100 to the refueling pipe 900. Ensure that all joints are well sealed and there is no leakage. Use the ORVR oil gun 800 to refuel the simulated oil tank 100, wherein when the ORVR oil gun 800 is plugged into the non-ORVR oil tank refueling pipe 500, it simulates refueling into an oil tank without the ORVR function. When the ORVR oil gun 800 is plugged into the ORVR oil tank refueling pipe 600, it simulates refueling into an oil tank with the ORVR function. During the refueling process, the gas enters the first transfer oil and gas recovery channel 1150 through the second oil and gas recovery channel, and then enters the oil and gas recovery system of the gas station through the first oil and gas recovery channel. The oil enters the first transfer oil and gas delivery channel 1140 through the second oil delivery channel, and then enters the simulated oil tank 100 through the first oil delivery channel. Obviously, this application is suitable for daily maintenance and testing at gas stations to ensure the normal operation of the oil and gas recovery system.

[0060] It should be noted that, in this embodiment, the ORVR oil gun 800 can cooperate with the ORVR tank filling pipe 600 and the non-ORVR tank filling pipe 500 to complete the ORVR tank test and the non-ORVR tank test to simulate a real refueling scenario.

[0061] like Figure 2 and Figure 3 As shown, in some embodiments, the metering component includes a flow meter, and the first transfer oil and gas recovery channel 1150 has a first transfer section 1151 and a second transfer section 1152, the first transfer section 1151 is connected to the first oil and gas recovery channel, and the second transfer section 1152 is connected to the second oil and gas recovery channel; wherein, the first transfer section 1151 is formed with an air inlet 1110 on the outer wall of the first adapter 1100, and the second transfer section 1152 is formed with an air outlet 1120 on the outer wall of the first adapter 1100, and the air inlet 1110 is connected to the air outlet 1120 through the flow meter.

[0062] In these embodiments, the first transfer oil and gas recovery channel 1150 is divided into a first transfer section 1151 and a second transfer section 1152. The first transfer section 1151 is connected to the first oil and gas recovery channel, and an air inlet 1110 is formed on the outer wall of the first adapter 1100. The second transfer section 1152 is connected to the second oil and gas recovery channel, and an air outlet 1120 is formed on the outer wall of the first adapter 1100. The first transfer oil delivery channel 1140 is used to connect the first oil delivery channel and the second oil delivery channel. The metering component is a flow meter, which is used to connect the air inlet 1110 and the air outlet 1120, that is, to measure the volume of gas flowing through the first transfer oil and gas recovery channel 1150. During the refueling process, the gas enters the second transfer section 1152 through the second oil and gas recovery channel, and then enters the flow meter through the air outlet 1120. After passing through the flow meter, the gas enters the first transfer section 1151 through the air inlet 1110 and enters the oil and gas recovery system of the filling pipe 900 through the first oil and gas recovery channel.

[0063] Obviously, during the entire metering process, the above-mentioned structural arrangement can improve the accuracy of metering gas, that is, improve the accuracy of the obtained gas-liquid ratio.

[0064] like Figure 4 As shown, in some embodiments, the two ends of the first transit oil and gas recovery channel 1150 are respectively plugged and sealed with the inner wall of the second oil and gas recovery channel of the ORVR oil gun 800 and the inner wall of the first oil and gas recovery channel of the refueling pipe 900, and the two ends of the first transit oil delivery channel 1140 are respectively plugged and sealed with the inner wall of the second oil delivery channel of the ORVR oil gun 800 and the inner wall of the first oil delivery channel of the refueling pipe 900.

[0065] In these embodiments, the two ends of the first transfer oil and gas recovery channel 1150 are respectively plugged and sealed with the inner wall of the second oil and gas recovery channel of the ORVR oil gun 800 and the inner wall of the first oil and gas recovery channel of the refueling pipe 900. The two ends of the first transfer oil delivery channel 1140 are respectively plugged and sealed with the inner wall of the second oil delivery channel of the ORVR oil gun 800 and the inner wall of the first oil delivery channel of the refueling pipe 900. The plug-in sealing design ensures that gas and oil will not leak during the transmission process, thereby improving the reliability and safety of the system. In addition, it is conducive to the positioning and docking between the first transfer oil and gas recovery channel 1150, the second oil and gas recovery channel, and the first oil and gas recovery channel, as well as the positioning and docking between the first transfer oil delivery channel 1140, the second oil delivery channel, and the first oil delivery channel, so as to facilitate installation.

[0066] like Figure 4 As shown, in some embodiments, the first connecting end 1130 of the first adapter 1100 is sequentially provided with a large-diameter shaft section 1132 and a small-diameter shaft section 1131 in a direction away from the second connecting end 1160, the first transfer oil delivery channel 1140 is provided on the small-diameter shaft section 1131, the outer wall of the small-diameter shaft section 1131 is provided with a first groove, the first groove is installed with a first sealing ring, the small-diameter shaft section 1131 is penetrated in the second oil delivery channel, and the first sealing ring abuts against the inner wall of the second oil delivery channel to achieve a sealing ring type seal;

[0067] The first transfer oil and gas recovery channel 1150 extends to the end surface of the shaft shoulder between the large diameter shaft section 1132 and the small diameter shaft section 1131. The outer wall of the large diameter shaft section 1132 is provided with a second groove, and a second sealing ring is installed in the second groove. The large diameter shaft section 1132 is penetrated in the second oil and gas recovery channel, and the second sealing ring abuts against the inner wall of the second oil and gas recovery channel to achieve sealing ring type sealing;

[0068] The second connecting end 1160 of the first adapter 1100 is provided with a small-diameter hole section 1162 and a large-diameter hole section 1161 in sequence in the direction away from the first connecting end 1130, the first transfer oil delivery channel 1140 is connected to the small-diameter hole section 1162, the inner wall of the small-diameter hole section 1162 is provided with a third groove, the third groove is installed with a third sealing ring, the first oil delivery channel is passed through the small-diameter hole section 1162, and the third sealing ring abuts against the outer wall of the first oil delivery channel to achieve a sealing ring type seal;

[0069] The first transit oil and gas recovery channel 1150 extends to the hole shoulder between the large diameter hole section 1161 and the small diameter hole section 1162. The inner wall of the large diameter hole section 1161 is provided with a fourth groove, and the fourth groove is installed with a fourth sealing ring. The end of the first oil and gas recovery channel is penetrated by the large diameter hole section 1161, and the fourth sealing ring abuts against the outer wall of the first oil and gas recovery channel to realize a sealing ring type seal.

[0070] In the above embodiment, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring can all be set as O-rings. Of course, in other embodiments, they can also be set as oil seals, etc., which is not specifically limited here.

[0071] like Figure 5 and Figure 6 As shown, in some embodiments, the metering component includes a flow meter, the adapter includes a second adapter 1200 and a magnet component, the second adapter 1200 has a second transfer oil and gas recovery channel 1210, a second transfer oil delivery channel 1220, an installation channel 1240, a third connection end and a fourth connection end, the portion of the transfer oil and gas recovery channel located at the second adapter 1200 is the second transfer oil and gas recovery channel 1210, the portion of the transfer oil delivery channel located at the second adapter 1200 is the second transfer oil delivery channel 1220, the second transfer oil and gas recovery channel 1210 is extended from the third connection end to the fourth connection end, the second transfer oil delivery channel 1220 is extended from the third connection end to the fourth connection end, the second transfer oil and gas recovery channel 1210 and the second transfer oil The material conveying channel 1220 is connected in series, the installation channel 1240 is communicated with the second transfer oil and gas recovery channel 1210, the oil gun nozzle 810 of the ORVR oil gun 800 is sequentially arranged in the second transfer oil and gas recovery channel 1210, the second transfer oil material conveying channel 1220 and the oil filling pipe, the ORVR oil gun 800 is magnetically attracted with the magnet, and the third connecting end and the oil gun nozzle 810 of the ORVR oil gun 800 are sealed, the end of the fourth connecting end and the end of the oil filling pipe are abutted and sealed, the inner wall of the second transfer oil material conveying channel 1220 and the side wall of the oil gun nozzle 810 are contacted and sealed, the installation channel 1240, the second transfer oil and gas recovery channel 1210, the second oil and gas recovery channel and the first oil and gas recovery channel are connected in series; wherein, the installation channel 1240 is communicated with the outside through a flow meter.

[0072] In these embodiments, different from the above structure, the second adapter 1200, the ORVR oil gun 800 and the refueling pipe 900 are connected in series. The second transfer oil and gas recovery channel 1210 extends to the end surface of the third connection end, and the second transfer oil delivery channel 1220 extends to the end surface of the fourth connection end, ensuring that the gas can smoothly enter the oil and gas recovery system of the refueling pipe 900 from the ORVR oil gun 800.

[0073] It should be noted that when the ORVR oil gun 800 is inserted into the ORVR oil tank filling pipe 600 to simulate the test of a non-ORVR oil tank, since the valve of the ORVR module of the ORVR oil gun 800 is attracted by the magnet and is in a closed state, it is necessary to adsorb the magnet on the ORVR oil gun 800 to turn off the ORVR function of the ORVR oil gun 800. When the ORVR oil gun 800 is inserted into the ORVR oil tank filling pipe 600 to simulate the test of the ORVR oil tank, it is not necessary to adsorb the magnet on the ORVR oil gun 800. In other words, when testing a non-ORVR oil tank, the function of the ORVR oil gun 800 needs to be turned off, and the installation channel 1240 is connected to the first transfer oil and gas recovery channel 1150, and is connected to the outside through the flow meter.

[0074] The third connection end is sealed and connected to the oil gun nozzle 810 of the ORVR oil gun 800. The fourth connection end is sealed and connected to the oil filling pipe, and is communicated with the first oil and gas recovery channel of the oil filling pipe 900. During the test, the oil gun nozzle 810 of the ORVR oil gun 800 is sequentially arranged in the second transfer oil and gas recovery channel 1210, the second transfer oil delivery channel 1220 and the oil filling pipe. The third connection end is sealed with the side wall of the oil gun nozzle 810 of the ORVR oil gun 800 to ensure that the gas can smoothly enter the second transfer oil and gas recovery channel 1210 from the oil gun. The fourth connection end is abutted against the end of the oil filling pipe, and the inner wall of the second transfer oil delivery channel 1220 and the side wall of the oil gun nozzle 810 are in contact and sealed, separating the second transfer oil and gas recovery channel 1210 from the oil filling pipe, ensuring that the external gas can smoothly enter the oil and gas recovery system of the oil filling pipe 900 from the second adapter 1200.

[0075] The installation channel 1240 is connected to the second transfer oil and gas recovery channel and is connected to the outside world through a flow meter. The flow meter is installed in the installation channel 1240 and is used to measure the volume of gas flowing through the second transfer oil and gas recovery channel 1210. The air inlet valve 400 is connected to the simulated oil tank 100 and is used to control the inlet and outlet of gas. It is in an open state during the test to balance the internal air pressure of the simulated oil tank 100 and ensure normal refueling. The air vent on the oil gun air cover of the oil gun needs to be sealed with a plug.

[0076] And the working process of this embodiment is: the third connection end of the first adapter 1100 is sealed and connected to the outer wall of the oil gun nozzle 810 of the ORVR oil gun 800. The third connection end of the first adapter 1100 is sealed and connected to the oil filling pipe, and it is ensured that the outside world is connected to the first oil and gas recovery channel of the filling pipe 900 through the installation channel 1240, the second transfer oil and gas recovery channel 1210, and the second oil and gas recovery channel. Ensure that all connections are well sealed and there is no leakage. Use the ORVR oil gun 800 to refuel the simulated oil tank 100. During the refueling process, the external gas enters the second transfer oil and gas recovery channel 1210 of the second adapter 1200 through the installation channel 1240, and the gas volume is measured by the flow meter. After passing through the flow meter, the gas enters the second transfer oil and gas recovery channel 1210, and finally enters the oil and gas recovery system of the gas station through the second oil and gas recovery channel and the first oil and gas recovery channel. The fuel enters the simulated fuel tank 100 through the first fuel delivery channel, the second fuel delivery channel of the ORVR fuel gun 800, and the second transfer fuel delivery channel 1220. The flow meter records the volume of gas flowing through the second transfer oil and gas recovery channel 1210. At the same time, the volume of fuel added by the fuel dispenser is recorded. The gas-liquid ratio is calculated based on the gas volume recorded by the flow meter and the volume of fuel added by the fuel dispenser.

[0077] It should be noted that, in this embodiment, the ORVR oil gun 800 can be used in conjunction with the magnet, and the ORVR oil tank test and the non-ORVR oil tank test can be completed through the ORVR oil tank filling pipe 600, which is convenient and quick.

[0078] like Figure 6 and Figure 7 As shown, in some embodiments, an elastic sealing gasket 1230 is provided in the portion of the second transfer oil delivery channel 1220 located at the fourth connecting end, the end face of the oil filling pipe and the elastic sealing gasket 1230 are abutted and sealed, and the inner ring of the elastic sealing gasket 1230 and the outer wall of the oil gun nozzle 810 are abutted and sealed.

[0079] In these embodiments, the end of the oil filling pipe is inserted into the second transfer oil delivery channel 1220 to ensure that the elastic sealing gasket 1230 of the fourth connection end is in abutment and sealed with the end face of the oil filling pipe. Ensure that all connections are well sealed without leakage, which is convenient for quick separation and connection. In addition, since the oil gun nozzle 810 is inserted into the inner ring of the elastic sealing gasket 1230, the outer wall of the oil gun nozzle 810 and the inner wall of the second transfer oil delivery channel 1220 are sealed, and the second transfer oil delivery channel 1220 and the second transfer oil and gas recovery channel are isolated to prevent oil and gas from entering the second transfer oil delivery channel 1220.

[0080] It should be noted that the elastic sealing gasket 1230 not only realizes radial sealing between the fuel injector and the adapter, but also realizes radial sealing between the fuel injector and the fuel injection pipe. Obviously, the overall sealing structure is simpler, the performance is stable, and it is easy to maintain later.

[0081] like Figure 5 As shown, in some embodiments, the end of the oil injection pipe is inserted into the second transfer oil delivery channel 1220, and the end surface of the oil injection pipe is abutted and sealed with the elastic sealing gasket 1230;

[0082] The third connection end is provided with a sealing lip 1250, and the end of the sealing lip 1250 is in contact and sealing connection with the end of the oil gun air cover of the ORVR oil gun 800, and the end of the sealing lip 1250 is set as an arc surface.

[0083] In these embodiments, during the test, the end of the oil injection pipe is inserted into the second transfer oil delivery channel 1220 to play a positioning and guiding role, so as to facilitate the rapid adjustment of the position of the oil injection pipe. In addition, the end of the oil injection pipe and the second transfer oil delivery channel 1220 can be in contact and sealed cooperation to limit the position of the first adapter 1100 to avoid displacement and leakage during the test.

[0084] The third connection end is provided with a sealing lip 1250, so as to form a sealing connection by contacting the end of the sealing lip 1250 with the end of the oil gun gas cover of the ORVR oil gun 800. At the same time, the end of the sealing lip 1250 that contacts the end of the oil gun gas cover is set as an arc surface, which is conducive to improving the sealing effect.

[0085] It should be noted that the vent hole on the oil gun air hood of the oil gun needs to be sealed with a plug.

[0086] like Figure 7 As shown, in some embodiments, the second transit oil and gas recovery channel 1210 forms an inlet at the end of the third connection end, and the second transit oil delivery channel 1220 forms an outlet at the end of the fourth connection end, the inlet and the outlet are staggered, and the outer wall of the oil gun nozzle 810 has a gun hanging step, which is located in the second transit oil and gas recovery channel 1210.

[0087] In these embodiments, during testing, the gun hanging step protruding from the outer wall of the oil gun nozzle 810 is located in the second transfer oil and gas recovery channel 1210. Obviously, due to the staggered arrangement of the outlet and the inlet, the outlet and the inlet are in a non-coaxial state, thereby preventing the second adapter 1200 from falling. Among them, the sealing lip 1250 is connected to the inlet.

[0088] like Figure 1 As shown, in some embodiments, an anti-static wheel 200 is provided at the bottom of the simulated oil tank 100 .

[0089] In these embodiments, the bottom anti-static wheels 200 are disposed at the bottom of the simulated oil tank 100 to move the simulated oil tank 100 and prevent static electricity accumulation, and facilitate testing at different test locations.

[0090] For example, the anti-static wheel 200 is usually made of anti-static material, such as conductive rubber or special plastic, to ensure that the wheel can conduct away static electricity during movement.

[0091] like Figure 1 As shown, in some embodiments, an oil collecting tank 300 is disposed on the top of the simulated oil tank 100 , the opening of the oil collecting tank 300 is disposed upward, and the oil filling pipe is located in the oil collecting tank 300 .

[0092] In these embodiments, the oil collecting tank 300 is used to collect the oil dripping from the oil gun. The oil filling pipe is located in the oil collecting tank 300 and can collect the scattered oil. In other words, the oil collecting tank 300 is used to collect the oil dripping from the oil gun to prevent the oil from overflowing and causing pollution.

[0093] Exemplarily, the oil collecting tank 300 is surrounded by side panels arranged at the edge of the simulated oil tank 100. Of course, it can also be formed by a recessed area opened at the top of the simulated oil tank 100.

[0094] like Figure 1 As shown, in some embodiments, the simulated oil tank 100 has a first drain port 1000 , and the oil collection tank 300 has a second drain port 700 .

[0095] In these embodiments, the first drain port 1000 is used to drain the oil in the simulated oil tank 100 for easy cleaning. For example, the first drain port 1000 is disposed at the bottom of the simulated oil tank 100 and is used in conjunction with the intake valve 400 to drain the oil.

[0096] Similarly, the oil in the oil collecting tank 300 is discharged by the second drain port 700 for easy cleaning.

[0097] In some embodiments, the present application further provides a secondary oil and gas recovery system, which includes a gas-liquid ratio testing device as described in any one of the above embodiments.

[0098] In some embodiments, the present application also provides a secondary oil and gas recovery system, which includes a gas-liquid ratio testing device as described in any of the above embodiments.

[0099] Since the above-mentioned gas-liquid ratio testing device has the above-mentioned technical effects, the secondary oil and gas recovery system including the gas-liquid ratio testing device should have the same technical effects, which will not be repeated here.

[0100] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0101] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0102] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A gas-liquid ratio testing device, characterized in that: The gas-liquid ratio testing device comprises: A simulated oil tank (100), the simulated oil tank (100) having an oil filling pipe, the oil filling pipe comprising a non-ORVR oil tank oil filling pipe (500) and an ORVR oil tank oil filling pipe (600); An ORVR oil gun (800), an adapter and a filling pipe (900), wherein the adapter and the ORVR oil gun (800) are detachably connected, the adapter has a transit oil gas recovery channel and a transit oil delivery channel, the filling pipe (900) has a first oil gas recovery channel and a first oil delivery channel, and the ORVR oil gun (800) has a second oil gas recovery channel and a second oil delivery channel, wherein the transit oil gas recovery channel, the first oil gas recovery channel and the second oil gas recovery channel are arranged in communication, and the transit oil delivery channel, the first oil delivery channel and the second oil delivery channel are arranged in communication; the ORVR oil gun (800) is at least capable of switching between a first state of being plugged into the non-ORVR oil tank filling pipe (500) and a second state of being plugged into the ORVR oil tank filling pipe (600); A metering piece, the metering piece is connected to the adapter, and the metering piece can measure the volume of the gas flowing through the transfer oil and gas recovery channel; An air intake valve (400), the simulated oil tank (100) being connected to the air intake valve (400); The metering component comprises a flow meter, and the adapter comprises a second adapter (1200) and a magnet component. The second adapter (1200) has a second transfer oil and gas recovery channel (1210), a second transfer oil delivery channel (1220), a mounting hole (1240), a third connection end, and a fourth connection end. The portion of the transfer oil and gas recovery channel located on the second adapter (1200) is the second transfer oil and gas recovery channel (1210), and the portion of the transfer oil delivery channel located on the second adapter (1200) is the second transfer oil delivery channel (1220). The second transfer oil and gas recovery channel (1210) is extended from the third connection end to the fourth connection end, and the second transfer oil delivery channel (1220) is extended from the third connection end to the fourth connection end. The second transfer oil and gas recovery channel (1210) and the second transfer oil delivery channel (1220) are connected to each other. The mounting hole (1240) and the second transfer oil and gas recovery channel (1210) are connected in series, the oil gun nozzle (810) of the ORVR oil gun (800) is sequentially arranged in the second transfer oil and gas recovery channel (1210), the second transfer oil delivery channel (1220) and the oil filling pipe, the magnet is magnetically attracted to the ORVR oil gun (800), and the third connection end and the oil gun nozzle (810) of the ORVR oil gun (800) are sealed, the end of the fourth connection end and the end of the oil filling pipe are abutted and sealed, the inner wall of the second transfer oil delivery channel (1220) and the side wall of the oil gun nozzle (810) are contacted and sealed, and the mounting hole (1240), the second transfer oil and gas recovery channel (1210), the second oil and gas recovery channel and the first oil and gas recovery channel are arranged in series; wherein the mounting hole (1240) is connected to the outside through the flow meter; An elastic sealing gasket (1230) is provided in the portion of the second transfer oil delivery channel (1220) located at the fourth connection end, the end surface of the oil filling pipe and the elastic sealing gasket (1230) are in abutment and sealing, and the inner ring of the elastic sealing gasket (1230) and the outer wall of the oil gun nozzle (810) are in abutment and sealing.

2. The gas-liquid ratio testing device according to claim 1, characterized in that: The adapter comprises a first adapter (1100); a portion of the transit oil and gas recovery channel located on the first adapter (1100) is a first transit oil and gas recovery channel (1150); a portion of the transit oil delivery channel located on the first adapter (1100) is a first transit oil delivery channel (1140); the first adapter (1100) has a first connection end (1130) and a second connection end (1160); the first connection end (1130) and the ORVR oil gun (800) are detachably connected; the second connection end (1160) and the refueling pipe (900) are detachably connected; the first oil and gas recovery channel is connected to the second oil and gas recovery channel via the first transit oil and gas recovery channel (1150); and the first oil delivery channel is connected to the second oil delivery channel via the first transit oil delivery channel (1140).

3. The gas-liquid ratio testing device according to claim 2, characterized in that: The metering component comprises a flow meter, and the first transfer oil and gas recovery channel (1150) comprises a first transfer section (1151) and a second transfer section (1152), the first transfer section (1151) is connected to the first oil and gas recovery channel, and the second transfer section (1152) is connected to the second oil and gas recovery channel; wherein the first transfer section (1151) is provided with an air inlet (1110) on the outer wall of the first adapter (1100), and the second transfer section (1152) is provided with an air outlet (1120) on the outer wall of the first adapter (1100), and the air inlet (1110) is connected to the air outlet (1120) through the flow meter.

4. The gas-liquid ratio testing device according to claim 2, characterized in that: The two ends of the first transfer oil and gas recovery channel (1150) are respectively plugged and sealed with the inner wall of the second oil and gas recovery channel of the ORVR oil gun (800) and the inner wall of the first oil and gas recovery channel of the refueling pipe (900), and the two ends of the first transfer oil delivery channel (1140) are respectively plugged and sealed with the inner wall of the second oil delivery channel of the ORVR oil gun (800) and the inner wall of the first oil delivery channel of the refueling pipe (900).

5. The gas-liquid ratio testing device according to claim 4, characterized in that: The first connecting end (1130) of the first adapter (1100) is provided with a large-diameter shaft section (1132) and a small-diameter shaft section (1131) in sequence in a direction away from the second connecting end (1160); the first transfer oil delivery channel (1140) is provided on the small-diameter shaft section (1131); the outer wall of the small-diameter shaft section (1131) is provided with a first groove; a first sealing ring is installed in the first groove; the small-diameter shaft section (1131) is passed through the second oil delivery channel, and the first sealing ring abuts against the inner wall of the second oil delivery channel; The first transit oil and gas recovery channel (1150) extends to the end surface of the shaft shoulder between the large diameter shaft section (1132) and the small diameter shaft section (1131); the outer wall of the large diameter shaft section (1132) is provided with a second groove, a second sealing ring is installed in the second groove, the large diameter shaft section (1132) is penetrated in the second oil and gas recovery channel, and the second sealing ring abuts against the inner wall of the second oil and gas recovery channel; The second connecting end (1160) of the first adapter (1100) is provided with a small-diameter hole section (1162) and a large-diameter hole section (1161) in sequence in a direction away from the first connecting end (1130); the first transfer oil delivery channel (1140) is connected to the small-diameter hole section (1162); a third groove is provided on the inner wall of the small-diameter hole section (1162); a third sealing ring is installed in the third groove; the first oil delivery channel is provided through the small-diameter hole section (1162), and the third sealing ring abuts against the outer wall of the first oil delivery channel; The first transit oil and gas recovery channel (1150) extends to the hole shoulder between the large diameter hole section (1161) and the small diameter hole section (1162), the inner wall of the large diameter hole section (1161) is provided with a fourth groove, and the fourth groove is installed with a fourth sealing ring, the end of the first oil and gas recovery channel is passed through the large diameter hole section (1161), and the fourth sealing ring is in abutment with the outer wall of the first oil and gas recovery channel.

6. The gas-liquid ratio testing device according to claim 1, characterized in that: The end of the oil injection pipe is inserted into the second transfer oil delivery channel (1220), and the end surface of the oil injection pipe and the elastic sealing gasket (1230) are in abutment and sealed. The third connection end is provided with a sealing lip (1250), the end of the sealing lip (1250) is in contact and sealing connection with the end of the oil gun air hood of the ORVR oil gun (800), and the end of the sealing lip (1250) is arranged as an arc-shaped surface.

7. The gas-liquid ratio testing device according to claim 1, characterized in that: The second transfer oil and gas recovery channel (1210) is formed with an inlet at the end of the third connection end, and the second transfer oil delivery channel (1220) is formed with an outlet at the end of the fourth connection end, the inlet and the outlet are arranged in a staggered manner, and the outer wall of the oil gun nozzle (810) has a gun hanging step, and the gun hanging step is located in the second transfer oil and gas recovery channel (1210).

8. The gas-liquid ratio testing device according to claim 1, characterized in that: An anti-static wheel (200) is provided at the bottom of the simulated oil tank (100); An oil collecting groove (300) is arranged on the top of the simulated oil tank (100), the opening of the oil collecting groove (300) is arranged upward, and the oil filling pipe is located in the oil collecting groove (300); The simulated oil tank (100) has a first liquid drain port (1000), and the oil collecting tank (300) has a second liquid drain port (700).

9. A secondary oil and gas recovery system, characterized in that: The secondary oil and gas recovery system comprises a gas-liquid ratio testing device as claimed in any one of claims 1 to 8.

Images