Oil gas concentration detector

Abstract

The utility model relates to the technical field of gas detection equipment, and discloses an oil gas concentration detector which comprises a shell, a gas inlet is formed in the bottom of the shell, a fan is fixedly installed in an inner cavity of the shell and located above the gas inlet, a fan is fixedly installed on an output shaft of the fan in a sleeved mode, a first valve is fixedly installed in the inner cavity of the shell, and a second valve is fixedly installed in the inner cavity of the shell. The first valve is located above the draught fan, air chambers are evenly formed in the middle of an inner cavity of the shell and correspond to the first valve, a motor is fixedly installed in the middle of the inner cavity of the shell and located among the six air chambers, a gear is fixedly installed on an output shaft of the motor in a sleeving mode, and the outer edge of the gear is meshed with a gear ring. The extension of the gear ring is uniformly and fixedly connected with exhaust fans, the exhaust fans are movably connected in the air chambers, the six air chambers are arranged, so that the concentration detection error is reduced, the accuracy of the device is improved, the wedge-shaped plug pin and the pulling piece facilitate the mounting and dismounting of the detection device and the top plate, and the working intensity of mounting personnel is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection equipment, in particular to an oil and gas concentration detector. Background Art

[0002] Energy is an indispensable material condition for human survival. With the rapid development of society, humans are exploiting and using more and more oil and natural gas. In the process of oil and gas exploitation, since oil and natural gas are volatile at room temperature, when oil and gas evaporate into the air, it will pollute the environment and also have an adverse impact on the lives and life safety of surrounding residents. Therefore, the concentration of oil and gas needs to be tested during mining operations, storage and transportation to avoid oil and gas leakage. Workers generally use oil and gas concentration detectors for safety detection.

[0003] In the prior art, the detector detects the oil and gas concentration in the air by extracting air from the detection location. However, due to the randomness of the air extraction, the obtained detection value cannot accurately represent the actual concentration at the detection location, and the accuracy of the detection result cannot be well guaranteed due to the random extraction. In addition, since the detector is usually connected and fixed with bolts, the installation and replacement of the detection device is relatively cumbersome, which increases the labor intensity of the installers and is not conducive to the subsequent maintenance and maintenance of the device. In order to solve the above problems, the utility model proposes an oil and gas concentration detector. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an oil and gas concentration detector, which reduces the error in oil and gas concentration detection and improves the working efficiency of the device by setting six air chambers and detecting the oil and gas in the six air chambers respectively. The wedge-shaped design of the latch allows the shell to push the latch into groove one, and the spring pushes the connecting plate to allow the latch to enter the fixing device in groove two. The pulling plate is pulled to drive the latch to separate from groove two, and the detection device can be separated from the top plate. The installation is simple and quick, which reduces the workload of the installer.

[0005] The utility model provides the following technical solutions: an oil and gas concentration detector, comprising a shell, an air inlet is opened at the bottom of the shell, a fan is fixedly installed in the inner cavity of the shell and above the air inlet, a fan is fixedly sleeved on the fan output shaft, a valve one is fixedly installed in the inner cavity of the shell, the valve one is six in number and is located above the fan, air chambers are evenly opened in the middle of the inner cavity of the shell, the air chambers are six in number and correspond to the valve one, a motor is fixedly installed in the middle of the inner cavity of the shell and located among the six air chambers, a gear is fixedly sleeved on the output shaft of the motor, the gear is extended with a gear ring meshing, the gear ring is evenly and fixedly connected with an exhaust fan on the outer extension, the exhaust fans are six in number and are respectively movably connected in the air chambers.

[0006] Preferably, a valve 2 is evenly fixedly installed in the middle of the inner cavity of the shell and above the air chamber, a detector is fixedly installed on the upper part of the valve 2, exhaust ports are respectively opened on the left and right sides of the shell and above the detector, and a top plate is clamped on the upper part of the shell.

[0007] Preferably, the inner walls on the left and right sides of the top plate cavity are respectively provided with grooves one, a moving rod is movably sleeved in the groove one, and one end of the moving rod close to the top plate inner cavity is fixedly connected to a connecting plate, and the connecting plate is movably connected in the groove one.

[0008] Preferably, a spring is fixedly installed on one side of the connecting plate and located at the front and rear of the moving rod, the other end of the spring is fixedly installed on an inner wall of the groove, and a pin is fixedly installed on the side of the connecting plate away from the spring.

[0009] Preferably, two grooves are respectively provided on the left and right sides of the upper part of the shell, and the two grooves fit with the latch. A pulling piece is fixedly installed on one end of the moving rod away from the connecting plate, and the pulling piece is symmetrically arranged on the left and right sides of the top plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The fan is driven by the blower to rotate. The rotation of the fan allows oil and gas to enter the device through the air inlet. Valve 1 is opened to allow oil and gas to enter the air chamber. When the air chamber is filled with gas, valve 1 is closed and valve 2 is opened. At the same time, the motor output shaft drives the gear to rotate. The gear drives the gear ring to move the exhaust fan, thereby pushing the gas in the air chamber to be discharged from valve 2. The exhausted gas enters the detector for detection. Due to the design of six air chambers, the oil and gas in the six air chambers are detected separately, which reduces the error in oil and gas concentration detection, effectively improves the accuracy of oil and gas detection by the equipment, and improves the working efficiency of the device.

[0012] 2. The wedge-shaped design of the latch allows the upper part of the shell to push the latch into the groove one. During the movement of the latch, the spring generates elastic potential energy. When the upper part of the shell completely enters the inner cavity of the top plate, the spring pushes the connecting plate under the action of the elastic potential energy. The connecting plate drives the latch to fit into the groove two. The detection device can be fixed under the top plate, making the installation of the device simple and quick, reducing the work intensity of the installer. By pulling the pull plate to drive the moving rod, the moving rod moves the connecting plate to drive the latch to leave the groove two. At this time, the shell can be taken out from the lower part of the top plate, which is convenient for maintenance and maintenance of the device, avoiding the decrease in detection accuracy after long-term use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the exterior structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the exhaust structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the fixing structure of the utility model.

[0017] In the figure: 1. shell; 2. air inlet; 3. blower; 4. fan; 5. valve 1; 6. air chamber; 7. motor; 8. gear; 9. gear ring; 10. exhaust fan; 11. valve 2; 12. detector; 13. exhaust port; 14. top plate; 15. groove 1; 16. moving rod; 17. connecting plate; 18. spring; 19. latch; 20. groove 2; 21. pull piece. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4, an oil and gas concentration detector, comprising a shell 1, an air inlet 2 is opened at the bottom of the shell 1, a fan 3 is fixedly installed in the inner cavity of the shell 1 and above the air inlet 2, a fan 4 is fixedly mounted on the output shaft of the fan 3, a valve 5 is fixedly installed in the inner cavity of the shell 1, the number of valves 5 is six and they are located above the fan 3, an air chamber 6 is evenly opened in the middle of the inner cavity of the shell 1, the number of air chambers 6 is six and they correspond to the valve 5, a motor 7 is fixedly installed in the middle of the inner cavity of the shell 1 and located in the middle of the six air chambers 6, a gear 8 is fixedly mounted on the output shaft of the motor 7, a gear ring 9 is meshed with the outer extension of the gear 8, an exhaust fan 10 is evenly fixedly connected to the outer extension of the gear ring 9, the number of exhaust fans 10 is six and they are respectively movably connected in the air chamber 6, a valve 2 11 is evenly fixedly installed in the middle of the inner cavity of the shell 1 and above the air chamber 6, a detector 12 is fixedly installed on the upper part of the valve 2 11, and the left and right sides of the shell 1 and located Exhaust ports 13 are respectively provided above the detector 12, and a top plate 14 is clamped on the upper part of the shell 1. The fan 3 is started, and the output shaft of the fan 3 drives the fan 4 to rotate. The rotation of the fan 4 drives the oil and gas to enter the inner cavity of the shell 1 through the air inlet 2, and the valve 1 5 is opened to allow the oil and gas to enter the air chamber 6. When the air chamber 6 is filled with gas, the valve 1 5 is closed and the valve 2 11 is opened. At the same time, the motor 7 is started, and the output shaft of the motor 7 drives the gear 8 to rotate, and the gear 8 drives the gear ring 9 to rotate, and the gear ring 9 drives the exhaust fan 10 to move, thereby pushing the gas in the air chamber 6 to be discharged from the valve 2 11. The exhausted gas enters the detector 12 for detection, and the detected gas is discharged through the exhaust port 13. Due to the design of the six air chambers 6, and the oil and gas in the six air chambers 6 are detected respectively, the error generated during the oil and gas concentration detection is reduced, so that the accuracy of the equipment in detecting oil and gas is effectively improved, and the working efficiency of the device is improved;

[0020] The inner walls on the left and right sides of the cavity of the top plate 14 are respectively provided with grooves 15, and a moving rod 16 is movably sleeved in the groove 15. The end of the moving rod 16 close to the inner cavity of the top plate 14 is fixedly connected to a connecting plate 17, and the connecting plate 17 is movably connected to the groove 15. A spring 18 is fixedly installed on one side of the connecting plate 17 and located in front and behind the moving rod 16. The other end of the spring 18 is fixedly installed on the inner wall of the groove 15, and a latch 19 is fixedly installed on the side of the connecting plate 17 away from the spring 18. Grooves 20 are respectively provided on the left and right sides of the upper part of the shell 1, and the grooves 20 and the latch 19 fit each other. A pull piece 21 is fixedly installed on the end of the moving rod 16 away from the connecting plate 17. The pull piece 21 is symmetrically arranged on the left and right sides of the top plate 14, and the upper part of the shell 1 is aligned with the top plate 14. Inner cavity, due to the wedge-shaped design of the latch 19, the upper part of the shell 1 can push the latch 19 into the groove 15, and the latch 19 drives the connecting plate 17 to move so that the spring 18 generates elastic potential energy. When the upper part of the shell 1 completely enters the inner cavity of the top plate 14, since the latch 19 and the groove 20 fit each other, the spring 18 pushes the connecting plate 17 under the action of elastic potential energy, and the connecting plate 17 drives the latch 19 to fit with the groove 20, so that the shell 1 is fixed under the top plate 14. After using the device for a long time, the pulling piece 21 can be pulled, and the pulling piece 21 drives the moving rod 16 to move, and the moving rod 16 drives the connecting plate 17 to move so that the latch 19 is separated from the groove 20. At this time, the shell 1 can be taken out from the lower part of the top plate 14, which is convenient for maintenance and maintenance of the device and avoids the decrease of the detection accuracy of the device.

[0021] Working principle: first fix the top plate 14 at the place where the oil and gas concentration needs to be detected by bolts, align the upper part of the shell 1 with the inner cavity of the top plate 14, and because of the wedge-shaped design of the latch 19, the upper part of the shell 1 can push the latch 19 into the groove 15, and the latch 19 drives the connecting plate 17 to move so that the spring 18 generates elastic potential energy. When the upper part of the shell 1 completely enters the inner cavity of the top plate 14, because the latch 19 and the groove 2 20 fit each other, the spring 18 pushes the connecting plate 17 under the action of elastic potential energy, and the connecting plate 17 drives the latch 19 to fit with the groove 20, so that the shell 1 is fixed under the top plate 14, and the fan 3 is started. The output shaft of the fan 3 drives the fan 4 to rotate, and the rotation of the fan 4 drives the oil and gas to enter the inner cavity of the shell 1 through the air inlet 2 , open valve 15 to allow oil and gas to enter the air chamber 6. When the air chamber 6 is filled with gas, close valve 15 and open valve 2 11. At the same time, the motor 7 is started, and the output shaft of the motor 7 drives the gear 8 to rotate, the gear 8 drives the gear ring 9 to rotate, and the gear ring 9 drives the exhaust fan 10 to move, thereby pushing the gas in the air chamber 6 to be discharged from the valve 2 11. The exhausted gas enters the detector 12 for detection, and the detected gas is discharged through the exhaust port 13. After using the device for a long time, the pulling piece 21 can be pulled, and the pulling piece 21 drives the moving rod 16 to move, and the moving rod 16 drives the connecting plate 17 to move so that the pin 19 is separated from the groove 20. At this time, the shell 1 can be taken out from the lower part of the top plate 14, which is convenient for maintenance and maintenance of the device.

Claims

1. An oil and gas concentration detector, comprising a housing (1), characterized in that: The shell (1) is provided with an air inlet (2) at the bottom, a fan (3) is fixedly installed in the inner cavity of the shell (1) and located above the air inlet (2), a fan (4) is fixedly mounted on the output shaft of the fan (3), a valve (5) is fixedly installed in the inner cavity of the shell (1), the valves (5) are six in number and are located above the fan (3), air chambers (6) are evenly arranged in the middle of the inner cavity of the shell (1), the air chambers (6) are six in number and correspond to the valves (5), a motor (7) is fixedly installed in the middle of the inner cavity of the shell (1) and located between the six air chambers (6), a gear (8) is fixedly mounted on the output shaft of the motor (7), the gear (8) is meshed with a toothed ring (9) on the outer extension, an exhaust fan (10) is evenly fixedly connected to the outer extension of the toothed ring (9), the exhaust fans (10) are six in number and are movably connected in the air chambers (6) respectively.

2. The oil and gas concentration detector according to claim 1, characterized in that: A second valve (11) is evenly and fixedly installed in the middle of the inner cavity of the shell (1) and located above the air chamber (6); a detector (12) is fixedly installed above the second valve (11); exhaust ports (13) are respectively provided on the left and right sides of the shell (1) and located above the detector (12); and a top plate (14) is clamped on the upper part of the shell (1).

3. The oil and gas concentration detector according to claim 2, characterized in that: The inner walls on the left and right sides of the cavity of the top plate (14) are respectively provided with grooves one (15), a moving rod (16) is movably sleeved in the groove one (15), and a connecting plate (17) is fixedly connected to one end of the moving rod (16) close to the inner cavity of the top plate (14), and the connecting plate (17) is movably connected in the groove one (15).

4. The oil and gas concentration detector according to claim 3, characterized in that: A spring (18) is fixedly mounted on one side of the connecting plate (17) and located at the front and rear of the moving rod (16), and the other end of the spring (18) is fixedly mounted on the inner wall of the groove (15). A latch (19) is fixedly mounted on the side of the connecting plate (17) away from the spring (18).

5. The oil and gas concentration detector according to claim 4, characterized in that: The upper left and right sides of the shell (1) are respectively provided with grooves 2 (20), and the grooves 2 (20) are fitted with the latch (19). A pull piece (21) is fixedly mounted on one end of the moving rod (16) away from the connecting plate (17), and the pull piece (21) is symmetrically arranged on the left and right sides of the top plate (14).

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