Oil-gas separation accurate detector

Abstract

The utility model discloses an oil-gas separation accurate detector which comprises a protection frame and a gas storage tank, the gas storage tank is arranged on the inner wall of the protection frame, and a to-be-detected gas recovery assembly is arranged on the outer wall of the gas storage tank; the to-be-detected gas recovery assembly comprises a gas inlet seat arranged at the right end of the front face of the gas storage tank, a recovery pipe is arranged at the left end of a top plate of the gas storage tank, a gas pressure meter is arranged on a top plate of the gas inlet seat, a gas conveying pipe is arranged on the front face of the gas inlet seat, and one end of the gas conveying pipe is connected with a gas conveying hose. The end, close to the air inlet base, of the air conveying pipe is connected with a micro air pump, and a photochemical ionization detector is arranged in the air storage tank. A metering barrel is arranged at the left end of the top of the protection frame, and a detection sealing assembly is arranged on the outer wall of the metering barrel. According to the utility model, the accuracy of the detection result of the oil core can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-gas separation detection, in particular to an accurate oil-gas separation detector. Background Technique

[0002] The oil separation core is designed for oil and air separation. It contains two kinds of filter elements, namely: a poly filter element and a separation filter element. In the coarse separation process of the oil separation core, the oil-gas mixture of the screw compressor enters from the tangentially arranged inlet pipe, flows tangentially along the inner side of the tank body and collides in the container composed of baffle plates. Through inertia and gravity, large oil droplets are coarsely separated. The oil flows out from the oil outlet pipe. After coarse separation, the oil-gas mixture enters the oil separation core for fine separation. The fine separation process of the oil separation core is that after coarse separation, the oil-gas enters the oil-gas separation core for fine separation, and the return oil pipe recovers the residual oil, and the clean gas is discharged from the pressure maintaining check valve. After separation by the oil separation core, whether the clean gas meets the requirements requires an accurate device to detect the oil content in the gas after the compressed air enters the oil separation core for filtration. Usually, the oil content of the qualified gas is below 3mg / m 3 The photoionization detector method indirectly determines the oil content by measuring the content of hydrocarbon vapor through a PID (photoionization detector), and is suitable for on-line monitoring of the change of oil content in compressed air.

[0003] In the existing single detection process of the gas after oil-gas separation, the gas in the metering barrel is not completely removed, which will remain in the metering barrel and affect the detection result of the next oil separation core, making the detection data of the oil-gas separation of the oil separation core inaccurate.

[0004] In view of the above problems, it is necessary to design an accurate oil-gas separation detector to overcome the above problems. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an accurate oil-gas separation detector, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An accurate oil-gas separation detector includes a protective frame and a gas storage tank. The inner wall of the protective frame is provided with a gas storage tank, and the outer wall of the gas storage tank is provided with a component for recovering the gas to be detected;

[0008] The component for recovering the gas to be detected includes an air inlet seat arranged at the right end of the front of the gas storage tank, a recovery pipe arranged at the left end of the top plate of the gas storage tank, a pressure gauge arranged on the top plate of the air inlet seat, an air delivery pipe arranged on the front of the air inlet seat, one end of the air delivery pipe is connected with an air delivery hose, one end of the air delivery pipe close to the air inlet seat is connected with a micro air pump, and a photoionization detector is arranged in the gas storage tank;

[0009] At the left end of the top of the protective frame, there is a metering barrel. A detection and sealing assembly is arranged on the outer wall of the metering barrel. The detection and sealing assembly includes a top box arranged on the top of the metering barrel. A sealing pipe is arranged behind the top box. One end of the top of the sealing pipe is provided with a control valve. One end of the sealing pipe is provided with an air inlet pipe. At the upper end of the right side of the metering barrel, there is an overflow air pipe. A gas flow meter is arranged on the right side of the overflow air pipe. A numerical display screen is arranged on the top of the gas flow meter. A return air pipe is arranged on the right side of the gas flow meter. An air return port is opened at one end of the right side of the top box.

[0010] In this solution, the oil separation core to be detected is placed in front of the sealing pipe of the metering barrel. The front of the oil separation core is connected to an oil-gas mixture with a known oil content. The air inlet pipe is connected to a clean gas source and can input clean air into the metering barrel. When detecting the oil separation core, first input a sufficient amount of clean air into the metering barrel through the air inlet pipe, and the micro air pump of the gas storage tank introduces the clean air into the gas storage tank and discharges it through the recovery pipe of the gas storage tank to keep the air pressure in the gas storage tank stable. The photoionization detector measures the oil content in the gas in the gas storage tank at this time. Then, close the air inlet pipe and the recovery pipe, filter the oil-gas mixture with a known oil content through the oil separation core and input it into the metering barrel, and detect the gas flow rate of the filtered oil-gas mixture in the metering barrel. At the same time, the micro air pump of the gas storage tank pumps this gas into the gas storage tank, and the photoionization detector continuously measures the oil content in the gas in the gas storage tank at this time. Finally, after inputting the gas at a specified flow rate, record the oil content in the gas in the gas storage tank measured by the photoionization detector at this time, and the separation effect of the oil separation core can be calculated. When measuring the next oil separation core, repeat the above process, and use a sufficient amount of clean air to remove the residual gas during the previous measurement to ensure the accuracy of this measurement.

[0011] As a preferred solution of the present utility model, the protective frame and the gas storage tank are detachably connected. The gas storage tank and the air inlet seat are fixedly connected. The gas storage tank and the recovery pipe are fixedly connected. The air inlet seat and the pressure gauge are detachably connected.

[0012] As a preferred solution of the present utility model, the air inlet seat and the air delivery pipe are fixedly connected. The air delivery pipe and the air delivery hose are fixedly connected. The air delivery pipe and the micro air pump are fixedly connected.

[0013] As a preferred solution of the present utility model, the other end of the air delivery hose far from the gas storage tank is connected to one end of the metering barrel. The metering barrel and the top box are fixedly connected.

[0014] As a preferred solution of the present utility model, the top box and the sealing pipe are detachably connected. The sealing pipe and the top box are detachably connected. The sealing pipe and the air inlet pipe are detachably connected.

[0015] As a preferred solution of the present utility model, the metering barrel and the overflow gas pipe are detachably connected, the overflow gas pipe and the gas flow meter are fixedly connected, the gas flow meter and the numerical display screen are detachably connected, the gas flow meter and the return gas pipe are fixedly connected, and the return gas pipe and the inside of the return air port communicate with each other and are not detachable.

[0016] Beneficial effects

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] In the oil-gas separation precision detector, through the micro air pump provided, it is convenient for the metering barrel to enter the intake seat with the gas to be measured through the air delivery pipe and the air delivery hose, and it is convenient to store the gas to be measured in the gas storage tank; the pressure gauge is set to monitor the volume of the gas to be measured in the gas storage tank, avoiding excessive storage of the gas to be measured, and it can avoid the gas to be measured remaining in the metering barrel after one oil separation core is detected and affecting the detection results of other subsequent oil separation cores, and can improve the accuracy of the detection results of the oil separation core. Description of the drawings

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the gas to be measured recovery assembly of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the detection sealing assembly of the present utility model.

[0022] In the figure: 1, protective frame; 2, gas storage tank; 3, gas to be measured recovery assembly; 4, metering barrel; 5, detection sealing assembly; 301, intake seat; 302, recovery pipe; 303, pressure gauge; 304, air delivery pipe; 305, air delivery hose; 306, micro air pump; 501, top box; 502, control valve; 503, sealing pipe; 504, gas filling pipe; 505, overflow gas pipe; 506, gas flow meter; 507, numerical display screen; 508, return gas pipe; 509, return air port. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figures 1 - 3 shown, an oil-gas separation precision detector includes a protective frame 1 and a gas storage tank 2. The inner wall of the protective frame 1 is provided with the gas storage tank 2, and the outer wall of the gas storage tank 2 is provided with a gas to be measured recovery assembly 3;

[0025] The gas to be measured recovery assembly 3 includes an air inlet seat 301 provided at the right end of the front side of the gas storage tank 2. A recovery pipe 302 is provided at the left end of the top plate of the gas storage tank 2. A pressure gauge 303 is provided on the top plate of the air inlet seat 301. An air delivery pipe 304 is provided on the front side of the air inlet seat 301. One end of the air delivery pipe 304 is connected to an air delivery hose 305. One end of the air delivery pipe 304 close to the air inlet seat 301 is connected to a micro air pump 306. A photoionization detector is provided inside the gas storage tank 2;

[0026] A metering bucket 4 is provided at the left end of the top of the protective frame 1. A detection sealing assembly 5 is provided on the outer wall of the metering bucket 4. The detection sealing assembly 5 includes a top box 501 provided on the top of the metering bucket 4. A sealing pipe 503 is provided at the back of the top box 501. A control valve 502 is provided at one end of the top of the sealing pipe 503. An air filling pipe 504 is provided at one end of the sealing pipe 503. An overflow pipe 505 is provided at the upper end of the right side of the metering bucket 4. A gas flow meter 506 is provided on the right side of the overflow pipe 505. A numerical display screen 507 is provided on the top of the gas flow meter 506. A return air pipe 508 is provided on the right side of the gas flow meter 506. An air return port 509 is opened at one end of the right side of the top box 501;

[0027] The protective frame 1 and the gas storage tank 2 are detachably connected. The gas storage tank 2 and the air inlet seat 301 are fixedly connected. The gas storage tank 2 and the recovery pipe 302 are fixedly connected. The air inlet seat 301 and the pressure gauge 303 are detachably connected; The air inlet seat 301 and the air delivery pipe 304 are fixedly connected. The air delivery pipe 304 and the air delivery hose 305 are fixedly connected. The air delivery pipe 304 and the micro air pump 306 are fixedly connected; The other end of the air delivery hose 305 away from the gas storage tank 2 is connected to one end of the metering bucket 4. The metering bucket 4 and the top box 501 are fixedly connected; The top box 501 and the sealing pipe 503 are detachably connected. The sealing pipe 503 and the top box 501 are detachably connected. The sealing pipe 503 and the air filling pipe 504 are detachably connected; The metering bucket 4 and the overflow pipe 505 are detachably connected. The overflow pipe 505 and the gas flow meter 506 are fixedly connected. The gas flow meter 506 and the numerical display screen 507 are detachably connected. The gas flow meter 506 and the return air pipe 508 are fixedly connected. The return air pipe 508 and the air return port 509 are internally connected and non-detachable;

[0028] Among them, through the set micro air pump 306, it is convenient for the metering barrel 4 to input the gas to be measured into the air inlet seat 301 by means of the gas transmission pipe 304 and the gas transmission hose 305, and it is convenient to store the gas to be measured in the gas storage tank 2. The air pressure gauge 303 is set to be able to monitor the volume of the gas to be measured in the gas storage tank 2, avoiding excessive storage of the gas to be measured. It can avoid the gas to be measured remaining in the metering barrel 4 after the oil-gas separation ratio of a single oil separation core is detected, which affects the oil-gas separation detection effect of other subsequent oil separation cores, and can improve the accuracy of the oil separation core detection result. The overflow pipe 505, the gas flow meter 506, the digital display screen 507 and the return air pipe 508 are set. When the valve is closed, the gas to be measured in the metering barrel 4 will enter the gas flow meter 506 through the overflow pipe 505, and then enter the top box 501 through the return air pipe 508, and the gas flow value will be displayed on the digital display screen 507.

[0029] It should be noted that the present utility model is an accurate oil-gas separation detector. When in use, the control valve 502 is opened. First, clean air is input into the metering barrel 4 and the gas storage tank 2 through the gas adding pipe 504 for cleaning. Then, the gas to be measured is conveyed into the metering barrel 4 by means of the sealing pipe 503. The gas in the metering barrel 4 will enter the gas flow meter 506 through the overflow pipe 505 and then enter the top box 501 through the return air pipe 508. The gas flow meter 506 can monitor the gas flow value and display it on the digital display screen 507. The micro air pump 306 is opened, and the gas to be measured in the metering barrel 4 is conveyed into the gas storage tank 2 by means of the gas transmission pipe 304 and the gas transmission hose 305. The photoionization detector can measure the oil content in the gas in the gas storage tank 2 in real time. By recording the oil content in the gas in the gas storage tank 2 measured by the photoionization detector at this time, the separation effect of the oil separation core can be converted; when measuring the next oil separation core, repeat the above process, and use sufficient clean air to remove the residual gas from the previous measurement, which can ensure the accuracy of this measurement.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An oil-gas separation precision detector, comprising a protective frame (1) and a gas storage tank (2), characterized in that: The inner wall of the protection frame (1) is provided with a gas storage tank (2), and the outer wall of the gas storage tank (2) is provided with a gas recovery component (3) to be tested; The gas recovery assembly (3) to be tested comprises an air inlet seat (301) arranged at the right end of the front face of the gas storage tank (2); a recovery pipe (302) is arranged at the left end of the top plate of the gas storage tank (2); a pressure gauge (303) is arranged on the top plate of the air inlet seat (301); an air supply pipe (304) is arranged at the front face of the gas inlet seat (301); one end of the air supply pipe (304) is connected to a gas supply hose (305); one end of the air supply pipe (304) close to the air inlet seat (301) is connected to a micro air pump (306); and a photoionization detector is arranged in the gas storage tank (2); A metering barrel (4) is arranged at the left end of the top of the protection frame (1), and a detection sealing assembly (5) is arranged on the outer wall of the metering barrel (4). The detection sealing assembly (5) comprises a top box (501) arranged at the top of the metering barrel (4), a sealing tube (503) is arranged at the rear of the top box (501), a control valve (502) is arranged at one end of the top of the sealing tube (503), a gas filling tube (504) is arranged at one end of the sealing tube (503), an overflow pipe (505) is arranged at the upper end of the right side of the metering barrel (4), a gas flow meter (506) is arranged on the right side of the overflow pipe (505), a numerical display screen (507) is arranged at the top of the gas flow meter (506), a return air pipe (508) is arranged on the right side of the gas flow meter (506), and a return air port (509) is opened at one end of the right side of the top box (501).

2. The oil-gas separation precision detector according to claim 1, characterized in that: The protective frame (1) and the gas storage tank (2) are detachably connected, the gas storage tank (2) and the air inlet seat (301) are fixedly connected, the gas storage tank (2) and the recovery pipe (302) are fixedly connected, and the air inlet seat (301) and the air pressure gauge (303) are detachably connected.

3. The oil-gas separation precision detector according to claim 1, characterized in that: The air inlet seat (301) is fixedly connected to the air delivery pipe (304), the air delivery pipe (304) is fixedly connected to the air delivery hose (305), and the air delivery pipe (304) is fixedly connected to the micro air pump (306).

4. The oil-gas separation precision detector according to claim 1, characterized in that: The other end of the gas delivery hose (305) away from the gas storage tank (2) is connected to one end of the metering barrel (4), and the metering barrel (4) is fixedly connected to the top box (501).

5. The oil-gas separation precision detector according to claim 1, characterized in that: The top box (501) and the sealing tube (503) are detachably connected, the sealing tube (503) and the top box (501) are detachably connected, and the sealing tube (503) and the gas filling tube (504) are detachably connected.

6. The oil-gas separation precision detector according to claim 1, characterized in that: The metering barrel (4) and the overflow pipe (505) are detachably connected, the overflow pipe (505) and the gas flow meter (506) are fixedly connected, the gas flow meter (506) and the numerical display screen (507) are detachably connected, the gas flow meter (506) and the return pipe (508) are fixedly connected, and the return pipe (508) and the return port (509) are interconnected and cannot be detached.

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