CN212059572U - Pressure-sensing sampling oil gas collecting device - Google Patents
Pressure-sensing sampling oil gas collecting device Download PDFInfo
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- CN212059572U CN212059572U CN202020325184.XU CN202020325184U CN212059572U CN 212059572 U CN212059572 U CN 212059572U CN 202020325184 U CN202020325184 U CN 202020325184U CN 212059572 U CN212059572 U CN 212059572U
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- oil gas
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Abstract
The utility model provides a pressure sensing sampling's oil gas collection system includes the air current response mechanism that is arranged in the air current of perception oil gas pipe, air current response mechanism intercommunication detection mechanism promotes the impeller through the air current and rotates and finally drives the code wheel rotation in the detection mechanism, the mechanical rotation of code wheel makes the light signal change that shines on the photoelectric sensor, and then produces different current signal, and the singlechip judges the air current information according to the electric current, realizes the oil gas flow detection in the oil gas pipe, when oil gas flows, through singlechip control the mechanism of getting gas is automatic to get gas, replaces artifical sample, convenient and practical and save manpower resources; during sampling, sampling is carried out when stable flowing oil gas waste gas in the oil gas pipe is ensured under the control of the single chip microcomputer, and the sampling precision is ensured. During sampling, the air in the joint and the air taking mechanism can be discharged in advance under the control of the single chip microcomputer, so that the influence of the air in the instrument on the precision of the sample is avoided.
Description
Technical Field
The utility model relates to an oil gas acquisition equipment field especially relates to an oil gas collection system of pressure sensing sampling.
Background
Oil gas contains a large amount of olefin and aromatic hydrocarbon, and is easy to cause great damage to the environment to human bodies. Oil gas is discharged in each link of petrochemical production, transportation, storage and sale, and the oil gas emission of a gas station accounts for about 45% of the oil gas emission according to data statistics and is an important oil gas source.
When exceeding the regulation pressure restriction in the oil tank of filling station, need discharge partly oil gas and carry out the pressure release, among the prior art, the oil gas often passes through certain oil gas recovery processing apparatus, and in-process, most oil gas is retrieved again, and few parts are discharged in the surrounding environment. The amount of contaminants in the oil and gas being discharged is subject to standard limits. In reality, in order to ensure the oil gas treatment of the gas station, the detection mechanism is required to detect the oil gas discharged by the oil gas treatment device of the gas station. In the actual process, the process that the pressure in an oil tank of a gas station exceeds the specified pressure limit is not controlled, measuring personnel often need to wait until the pressure reaches the limit, a measuring instrument is connected to a sampling pipeline for manual sampling, the pressure change needs to be noted in the sampling process, the sampling is continued after the oil gas discharge is stopped, air enters, so that data is inaccurate, and the coordination operation of multiple people is needed. The oil gas collecting device for pressure sensing sampling can sense air pressure change and automatically start or stop sampling according to pressure sensing conditions.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a pressure sensing sampling's oil gas collection system.
The utility model provides an oil gas collecting device for pressure sensing sampling, which comprises a joint, wherein,
the connector is connected with the sampling tube, a detection mechanism is arranged in the connector, the detection mechanism comprises a cylindrical shell with a cavity in the middle, a passage penetrating through the shell is arranged on the periphery of the cavity, a rotating shaft is rotatably connected to a middle shaft of the shell, a circular code disc is arranged on the rotating shaft in the cavity, a light source is arranged on one side of the code disc, a photoelectric sensor is arranged on the other side of the code disc, the light source and the photoelectric sensor are fixed in the cavity, the light source and the photoelectric sensor are electrically connected with a single chip microcomputer, and the end part of the rotating shaft outside the cavity is connected with an airflow induction mechanism;
the airflow induction mechanism comprises a support frame, a first bevel gear is rotatably connected to the support frame, the rotating shaft is connected to the first bevel gear, a second bevel gear is rotatably connected to the support frame, the first bevel gear is in gear joint with the second bevel gear, and the second bevel gear is connected with an impeller;
the joint is provided with an electromagnetic valve which is electrically connected with the singlechip;
the connector is communicated with the gas taking mechanism, and the gas taking mechanism is electrically connected with the single chip microcomputer.
Preferably, the light source and the electromagnetic valve are provided with a switch controlled by the single chip microcomputer, and the photoelectric sensor is electrically connected with the single chip microcomputer through a filter circuit, an amplifying circuit and a digital-to-analog conversion circuit.
Preferably, a magnetic base is arranged at the bottom of the support frame.
Preferably, the pivot includes slide bar and loop bar, the loop bar rotate connect in the casing, sliding connection is gone up to the loop bar the slide bar, the lateral wall of slide bar sets up spacing along length direction, correspond in the loop bar spacing is provided with the spout, spacing slide set up in the spout.
Preferably, the air intake mechanism comprises a box body, a containing cavity is arranged in the box body, an air pump is arranged in the box body beside the containing cavity, the air inlet end of the air pump is communicated with the air inlet pipe, the air inlet pipe is detachably connected with the joint, the air outlet end of the air pump is communicated with the air outlet pipe, the air outlet pipe is provided with two branch pipelines, one branch pipeline extends into the accommodating cavity, the branch pipeline is provided with an air valve A, the other branch pipeline extends out of the box body, the branch pipeline is provided with an air valve B, a box door is hinged at the opening of the containing cavity, the box door and the box body are arranged in a sealing way, the containing cavity is provided with an exhaust pipe which is communicated with the outside of the box body, an air valve C is arranged on the exhaust pipe, the control switches of the air pump, the air valve A, the air valve B and the air valve C are all electrically connected with the single chip microcomputer.
Preferably, the single chip microcomputer is arranged in the box body, a keyboard is arranged on the side wall of the box body, a display screen is arranged on the side wall of the box body, and the keyboard and the display screen are electrically connected with the single chip microcomputer.
Preferably, a power supply is arranged in the box body and electrically connected with the single chip microcomputer, the light source, the electromagnetic valve, the air pump, the air valve A, the air valve B and the air valve C.
Preferably, a flow meter is arranged on the branch pipeline extending into the accommodating cavity and electrically connected with the power supply, and a control switch of the flow meter is electrically connected with the single chip microcomputer.
Compared with the prior art, the utility model provides a pressure sensing sampling's oil gas collection system has following beneficial effect:
the oil gas collecting device of pressure sensing sampling provided by the utility model can measure the oil gas flow in the oil gas pipe through the airflow sensing mechanism, when the oil gas flows, the gas taking mechanism automatically takes gas through the single chip microcomputer control, so as to replace manual sampling, thereby being convenient and practical and saving manpower resources; during sampling, sampling is carried out when stable flowing oil gas waste gas in the oil gas pipe is ensured under the control of the single chip microcomputer, and the sampling precision is ensured. During sampling, air in the joint and the air taking mechanism can be discharged in advance under the control of the single chip microcomputer, so that the influence of air in an instrument on the precision of the sample is avoided; the length of the rotating shaft can be adjusted, so that the oil-gas collecting device for pressure-sensitive sampling can sample different oil-gas tubes and sampling tubes; the air taking mechanism can help the vacuum bag to sample and can help the adsorption type activated carbon tube equal-container sampling, and is convenient and practical.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the pressure-sensing sampling oil-gas collecting device provided by the present invention;
FIG. 2 is a cross-sectional view of the coupling, sensing mechanism and air flow response mechanism of FIG. 1;
FIG. 3 is an enlarged schematic view of the detecting mechanism shown in FIG. 2;
FIG. 4 is an enlarged view of the airflow sensing mechanism shown in FIG. 2;
FIG. 5 is a schematic view of the housing and the shaft shown in FIG. 3;
fig. 6 is a schematic view of the internal structure of the air extraction mechanism shown in fig. 1.
Reference numbers in the figures: 1. the device comprises a connector, 2, a detection mechanism, 21, a shell, 211, a passage, 22, a rotating shaft, 221, a loop bar, 222, a sliding rod, 23, a photoelectric sensor, 24, a code disc, 25, a lens, 26, a light source, 3, an airflow sensing mechanism, 31, a support frame, 32, a first bevel gear, 33, a second bevel gear, 34, an impeller, 4, a single chip microcomputer, 41, a keyboard, 42, a display screen, 5, an electromagnetic valve, 6, an air taking mechanism, 61, a box body, 62, an air pump, 63, an air inlet pipe, 64, an air outlet pipe, 65, a box door, 66, an air outlet pipe, 7, a power supply, 8 and a flow meter.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, in which fig. 1 is a schematic structural diagram of a preferred embodiment of the pressure-sensing sampling oil-gas collecting device of the present invention; FIG. 2 is a cross-sectional view of the coupling, sensing mechanism and air flow response mechanism of FIG. 1; FIG. 3 is an enlarged schematic view of the detecting mechanism shown in FIG. 2; FIG. 4 is an enlarged view of the airflow sensing mechanism shown in FIG. 2; FIG. 5 is a schematic view of the housing and the shaft shown in FIG. 3; fig. 6 is a schematic view of the internal structure of the air extraction mechanism shown in fig. 1.
Referring to fig. 1, the utility model provides a pressure-sensing sampling oil gas collecting device, which comprises a joint 1, wherein,
referring to fig. 2, one end of the joint 1 is provided with a flange structure convenient for connecting to a sampling tube, the joint 1 is internally provided with a detection mechanism 2, and referring to fig. 3, the detection mechanism 2 comprises a cylindrical shell 21 with a cavity in the middle, a passage 211 penetrating through the shell 21 is arranged on the periphery of the cavity, a rotating shaft 22 is rotatably connected on a middle shaft of the shell 21, a circular code disc 24 is arranged on the rotating shaft 22 in the cavity, through holes arranged in different ways are carved on the code disc 24, a light source 26 is arranged on one side of the code disc 24, a lens 25 for condensing and collimating is arranged between the light source 26 and the code disc 24, a photoelectric sensor 23 is arranged on the other side of the code disc 24, the light source 26 and the photoelectric sensor 23 are fixed in the cavity, and the light source 26 and the photoelectric sensor 23 are electrically connected with a single chip, in a specific implementation process, the light source 26 is provided with a switch controlled by the single chip microcomputer 4, and the photoelectric sensor 23 is electrically connected with the single chip microcomputer 4 through a filter circuit, an amplifying circuit and a digital-to-analog conversion circuit.
In order to adapt to different oil and gas discharging pipelines, referring to fig. 5, the rotating shaft 22 includes a sliding rod 221 and a sleeve rod 222, the sleeve rod 222 is rotatably connected to the housing 21, the coded disc 24 is arranged on the sleeve rod 222 in the cavity, the sleeve rod 222 is connected to the sliding rod 221 in a damping sliding manner, a limit strip is arranged on the side wall of the sliding rod 221 along the length direction, a sliding groove is arranged in the sleeve rod 222 corresponding to the limit strip, and the limit strip is slidably arranged in the sliding groove, so that the sliding rod 221 and the sleeve rod 222 cannot be twisted relatively.
The end of the sliding rod 221 outside the cavity is connected to the airflow sensing mechanism 3, as shown in fig. 4, the airflow sensing mechanism 3 includes a supporting frame 31, a magnetic base is disposed at the bottom of the supporting frame 31, the base may be composed of an electromagnet, and the supporting frame 31 is conveniently fixed in a pipeline for discharging oil and gas. The support frame 31 is rotatably connected with a first bevel gear 32, the end part of the sliding rod 221 is detachably connected with the first bevel gear 32, the support frame 31 is rotatably connected with a second bevel gear 33, the first bevel gear 32 is in toothed connection with the second bevel gear 33, the second bevel gear 33 is connected with an impeller 34, and the second bevel gear 33 and the impeller 34 are coaxially arranged.
The connector 1 is provided with an electromagnetic valve 5, and the electromagnetic valve 5 is provided with a switch controlled by the singlechip 4.
The connector 1 is communicated with the gas taking mechanism 6, as shown in fig. 6, the gas taking mechanism 6 comprises a box body 61, in the specific implementation process, a handle is arranged at the top of the box body 61, the bottom of the box body 61 is detachably connected with a tripod or a trolley, a containing cavity is arranged in the box body 61, a box door 65 is hinged at the opening of the containing cavity, the box door 65 is arranged between the box body 61 and the box body 61 in a sealing manner, a gas pump 62 is arranged in the box body 61 beside the containing cavity, the gas inlet end of the gas pump 62 is communicated with a gas inlet pipe 63, the gas inlet pipe 63 is detachably connected with the connector 1, the gas outlet end of the gas pump 62 is communicated with a Y-shaped gas outlet pipe 64, the gas outlet pipe 64 is provided with two branch pipes, one branch pipe extends into the containing cavity, a gas valve A641 is arranged on the branch pipe, the other branch, the containing cavity is provided with an exhaust pipe 66, the exhaust pipe 66 is communicated with the outside of the box body 61, an air valve C661 is arranged on the exhaust pipe 66, and the air pump 62, the air valve A641, the air valve B642 and a control switch of the air valve C661 are electrically connected with the single chip microcomputer 4.
In a specific implementation process, the single chip microcomputer 4 is arranged in the box body 61, a keyboard 41 is arranged on the side wall of the box body 61, a display screen 42 is arranged on the side wall of the box body 61, and the keyboard 41 and the display screen 42 are electrically connected with the single chip microcomputer 4. The power supply 7 is arranged in the box body 61, the power supply 7 is a rechargeable lithium battery, and the power supply 7 is electrically connected with the singlechip 4, the light source 26, the electromagnetic valve 5, the air pump 62, the air valve A641, the air valve B642 and the air valve C661.
Extend to hold the intracavity be provided with flowmeter 8 on the branch pipeline, flowmeter 8 electric connection power 7, flowmeter 8's control switch electric connection singlechip 4.
The utility model provides an oil gas collection system of pressure sensing sampling's principle as follows:
during the use, will connect 1 and sampling pipe and be connected, will airflow induction mechanism 3 sets up in oil gas pipe, and magnetic base fixes airflow induction mechanism 3 in oil gas pipe, impeller 34 orientation comes the gas direction, has the air current to produce in the oil gas pipe, and the air current flows impeller 34 rotates, impeller 34 drives second bevel gear 33 rotates, second bevel gear 33 drives first bevel gear 32 with pivot 22 rotates, pivot 22 on code wheel 24 rotates, singlechip 4 control light source 26 opens and gives out light, light process shine after the lens collimation code wheel 24, code wheel 24 sets up the through-hole, the through-hole is arranged according to certain code for the through-hole code corresponds with code wheel 24's turned angle, code wheel 24 rotates the in-process, through-hole on code wheel 24 makes and shines light on photoelectric sensor 23 changes, the photoelectric sensor 23 converts the optical signal into an electrical signal and transmits the electrical signal to the single chip microcomputer 4, and the single chip microcomputer 4 obtains the rotation information of the code disc 24 through the change of the signal.
When sampling, one way is to connect the vacuum sample bag with the end of the air outlet pipe 64 where the flowmeter 8 is located, and then sampling is carried out after the air in the oil gas pipe is exhausted after the oil gas is exhausted for a period of time, after the coded disc 24 rotates for a certain time (the time length is set through the keyboard 41), the singlechip 4 operates a program to open the electromagnetic valve 5, the singlechip 4 operates the program to open the air valve a641 and the air pump 62, air is pumped for a certain time (set by the keyboard 41), air in the instrument is exhausted from one end of the box body 61 through the air outlet pipe 64, the sampling precision is ensured, after the air exhaust is finished, the single chip microcomputer 4 controls the air valve A641 to close, the single chip microcomputer 4 controls the air valve B642 to open, the air pump 62 inflates air into the vacuum sample bag, and in the actual operation process, the pumping speed of the air pump 62 is set according to the sampling time requirement of the size of the vacuum sample bag.
During sampling, another way is to connect an adsorption type sampling container such as an activated carbon tube between the end of the air outlet tube 64 where the flowmeter 8 is located and the exhaust tube 66, oil gas is required to be discharged for a period of time to discharge air in the oil gas tube and then sample, after the code disc 24 rotates for a certain period of time (the time length is set through the keyboard 41), the electromagnetic valve 5 is opened by the operation program of the singlechip 4, the air valve a641 and the air pump 62 are opened by the operation program of the singlechip 4, air is pumped for a certain period of time (set through the keyboard 41), air in the instrument is discharged through one end of the air outlet tube 64 extending out of the box body 61, the sampling precision is ensured, after the exhaust is completed, the air valve a641 is controlled to be closed by the singlechip 4, the air valve B642 and the air valve C661 are controlled to be opened by the singlechip 4, and the air, after the object to be measured is absorbed, the residual gas is discharged through the exhaust pipe 66, and in the process, the flowmeter 8 measures the gas passing through under the control of the singlechip 4.
The pressure-sensing sampling oil gas collecting device provided by the utility model can measure the oil gas flow in the oil gas pipe through the airflow sensing mechanism 3, when the oil gas flows, the gas taking mechanism 6 is controlled by the singlechip 4 to automatically take gas, so as to replace manual sampling, thereby being convenient and practical and saving manpower resources; during sampling, sampling is carried out when stable flowing oil gas waste gas in the oil gas pipe is ensured under the control of the singlechip 4, and the sampling precision is ensured. During sampling, air in the joint 1 and the air taking mechanism 6 can be discharged in advance under the control of the singlechip 4, so that the influence of air in an instrument on the precision of the sample is avoided; the length of the rotating shaft 22 can be adjusted, so that the oil-gas collecting device for pressure-sensitive sampling can sample different oil-gas pipes and sampling pipes; the air taking mechanism 6 can help the vacuum bag to sample and can help the adsorption type activated carbon tube equal-container sampling, and is convenient and practical.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (8)
1. The pressure-sensing sampling oil-gas acquisition device is characterized by comprising a joint (1), wherein,
the joint (1) is connected with the sampling tube, a detection mechanism (2) is arranged in the joint (1), the detection mechanism (2) comprises a cylindrical shell (21) with a cavity in the middle, a passage (211) penetrating through the shell (21) is arranged on the periphery of the cavity, a rotating shaft (22) is rotatably connected on a middle shaft of the shell (21), a circular coded disc (24) is arranged on the rotating shaft (22) in the cavity, a light source (26) is arranged on one side of the coded disc (24), a photoelectric sensor (23) is arranged on the other side of the coded disc (24), the light source (26) and the photosensor (23) are fixed in the cavity, the light source (26) and the photoelectric sensor (23) are electrically connected with the single chip microcomputer (4), and the end part of the rotating shaft (22) outside the cavity is connected with the airflow sensing mechanism (3);
the airflow induction mechanism (3) comprises a support frame (31), a first bevel gear (32) is rotatably connected to the support frame (31), the rotating shaft (22) is connected to the first bevel gear (32), a second bevel gear (33) is rotatably connected to the support frame (31), the first bevel gear (32) is in gear joint with the second bevel gear (33), and an impeller (34) is connected to the second bevel gear (33);
the joint (1) is provided with an electromagnetic valve (5), and the electromagnetic valve (5) is electrically connected with the singlechip (4);
the connector (1) is communicated with a gas taking mechanism (6), and the gas taking mechanism (6) is electrically connected with the single chip microcomputer (4).
2. The pressure-sensing sampling oil-gas collection device according to claim 1, wherein the light source (26) and the electromagnetic valve (5) are provided with switches controlled by the single chip microcomputer (4), and the photoelectric sensor (23) is electrically connected with the single chip microcomputer (4) through a filter circuit, an amplification circuit and a digital-to-analog conversion circuit.
3. The pressure sensing sampled oil and gas collection device according to claim 1, wherein a magnetic base is arranged at the bottom of the support frame (31).
4. The pressure sensing sampling oil gas collection device according to claim 1, wherein the rotating shaft (22) comprises a sliding rod (221) and a loop bar (222), the loop bar (222) is rotatably connected to the housing (21), the loop bar (222) is slidably connected to the sliding rod (221), a limit strip is arranged on a side wall of the sliding rod (221) along the length direction, a sliding groove is arranged in the loop bar (222) corresponding to the limit strip, and the limit strip is slidably arranged in the sliding groove.
5. The oil gas collection device for pressure sensing sampling according to claim 1, wherein the gas taking mechanism (6) comprises a box body (61), a containing cavity is arranged in the box body (61), an air pump (62) is arranged in the box body (61) beside the containing cavity, the air inlet end of the air pump (62) is communicated with an air inlet pipe (63), the air inlet pipe (63) is detachably connected with the joint (1), the air outlet end of the air pump (62) is communicated with an air outlet pipe (64), the air outlet pipe (64) is provided with two branch pipes, one branch pipe extends into the containing cavity, an air valve A (641) is arranged on one branch pipe, the other branch pipe extends out of the box body (61), an air valve B (642) is arranged on the other branch pipe, a box door (65) is hinged to an opening of the containing cavity, and the box door (65) and the box body (61) are hermetically, the containing cavity is provided with an exhaust pipe (66), the exhaust pipe is communicated with the outside of the box body (61), an air valve C (661) is arranged on the exhaust pipe (66), and the air pump (62), the air valve A (641), the air valve B (642) and a control switch of the air valve C (661) are electrically connected with the single chip microcomputer (4).
6. The pressure-sensing sampling oil-gas collection device according to claim 5, wherein the single chip microcomputer (4) is arranged in the box body (61), a keyboard (41) is arranged on the side wall of the box body (61), a display screen (42) is arranged on the side wall of the box body (61), and the keyboard (41) and the display screen (42) are electrically connected with the single chip microcomputer (4).
7. The pressure-sensing sampling oil-gas collection device according to claim 6, wherein a power supply (7) is arranged in the box body (61), and the power supply (7) is electrically connected with the single chip microcomputer (4), the light source (26), the electromagnetic valve (5), the air pump (62), the air valve A (641), the air valve B (642) and the air valve C (661).
8. The pressure sensing sampling oil-gas collection device according to claim 7, wherein a flow meter (8) is arranged on the branch pipeline extending into the containing cavity, the flow meter (8) is electrically connected with the power supply (7), and a control switch of the flow meter (8) is electrically connected with the single chip microcomputer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325184.XU CN212059572U (en) | 2020-03-16 | 2020-03-16 | Pressure-sensing sampling oil gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325184.XU CN212059572U (en) | 2020-03-16 | 2020-03-16 | Pressure-sensing sampling oil gas collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212059572U true CN212059572U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020325184.XU Expired - Fee Related CN212059572U (en) | 2020-03-16 | 2020-03-16 | Pressure-sensing sampling oil gas collecting device |
Country Status (1)
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| CN (1) | CN212059572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267387A (en) * | 2021-05-19 | 2021-08-17 | 深圳市环境监测中心站（深圳市有机物测试与环境设备检测中心） | Gas collection and sampling device |
-
2020
- 2020-03-16 CN CN202020325184.XU patent/CN212059572U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267387A (en) * | 2021-05-19 | 2021-08-17 | 深圳市环境监测中心站（深圳市有机物测试与环境设备检测中心） | Gas collection and sampling device |
| CN113267387B (en) * | 2021-05-19 | 2022-12-13 | 深圳市环境监测中心站（深圳市有机物测试与环境设备检测中心） | Gas collecting and sampling device |
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