CN115807915B - Natural gas pipeline sampling device - Google Patents
Natural gas pipeline sampling device Download PDFInfo
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- CN115807915B CN115807915B CN202310063458.0A CN202310063458A CN115807915B CN 115807915 B CN115807915 B CN 115807915B CN 202310063458 A CN202310063458 A CN 202310063458A CN 115807915 B CN115807915 B CN 115807915B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a natural gas pipeline sampling device which comprises a gas storage mechanism, a pipeline communication mechanism, a control module and a main gas pipeline. The invention belongs to the field of natural gas sampling, in particular to a natural gas pipeline sampling device, which realizes the technical effect of buffering the natural gas sampling pressure by a gas storage mechanism and solves the technical problem of damaging acquisition equipment by air pressure impact; through the sampling temporary storage system, the technical effects of buffering high gas pressure of natural gas and pressurizing during exhausting are realized, and the contradictory technical problems that the natural gas is depressurized and simultaneously exhausted and pressurized during natural gas collection are solved; the setting of admission reposition of redundant personnel pipeline because the diameter of admission reposition of redundant personnel pipeline is far less than the gas transmission trunk line, and the velocity of flow of both is different, and pressure is also different, can let the natural gas that inputs from the gas transmission trunk line utilize pressure differential to mix once more, reduces the laminar flow phenomenon in the pipeline, improves the homogeneity of sample.
Description
Technical Field
The invention belongs to the technical field of natural gas sampling, and particularly relates to a natural gas pipeline sampling device.
Background
The main natural gas pipeline refers to a main pipeline for conveying natural gas to users. The starting point is a gas field, an oil field or an LNG receiving station, and the end point is usually an urban gas distribution main station. Natural gas compositions are based on methane, typically at levels above 80%, and contain ethane, propane, butane and their isomers and other heavier gaseous hydrocarbons, as well as hydrogen, nitrogen, hydrogen sulfide, carbon dioxide and small amounts of inert gases such as helium, argon, and the like.
In the process of conveying natural gas, the natural gas pipeline needs to detect conveying substances in the pipeline at regular time, and in the process of taking out, leakage of the pipeline is easy to occur, so that dangers are caused, and therefore, a special sampling device is needed to be matched, so that normal operation of the pipeline is not influenced, safety of detection personnel is guaranteed, and natural gas resources are not wasted and environmental pollution is also guaranteed; the current sampling device has complex structure, inconvenient operation, consuming a great deal of time for each operation, unsafe operation process and possible air leakage; because the pressure in the natural gas well and the natural gas station pipeline are different, for the gas well with high gas pressure, high-pressure gas is easy to cause impact on a sampling bottle, and irreversible damage is caused to a valve, a sealing ring and the like of the sampling bottle. Thus, when the sampling bottle is used for collecting high-pressure gas, the risk of leakage of the sampling bottle exists, so that the long-term safety of gas sample preservation is affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the natural gas pipeline sampling device, which adopts an intermediate structure transitional sampling mode to set a gas storage mechanism according to the problem of the natural gas sampling air pressure impact damage acquisition equipment, so that the technical effect of buffering the natural gas sampling air pressure is realized, and the technical problem of the air pressure impact damage acquisition equipment is solved.
The technical scheme adopted by the invention is as follows: the invention provides a natural gas pipeline sampling device which comprises a gas storage mechanism, a pipeline communication mechanism, a control module and a gas transmission main pipeline, wherein the pipeline communication mechanism is arranged on the gas transmission main pipeline, the gas storage mechanism is arranged on one side of the pipeline communication mechanism, the control module is arranged on the gas storage mechanism, and the gas storage mechanism is simultaneously arranged on one side of the gas transmission main pipeline.
Further, pipeline intercommunication mechanism includes the air inlet reposition of redundant personnel pipeline, the air inlet reposition of redundant personnel pipeline is H type air pipe, and is equipped with N, M, X and Y four interfaces on the air inlet reposition of redundant personnel pipeline, the air inlet reposition of redundant personnel pipeline is connected with the air delivery trunk line ventilation through N, Y end, and X, Y end is airtight state, because the diameter of air inlet reposition of redundant personnel pipeline is less than the air delivery trunk line far away, the velocity of flow of both is different, the pressure is also different, can let the natural gas that inputs from the air delivery trunk line utilize the pressure differential to mix once more, reduce the laminar flow phenomenon in the pipeline (the velocity of flow of fluid is the biggest in pipe center department, its near wall department is minimum), improve the homogeneity of sample.
Further, the Y end of the air inlet split flow pipeline is provided with an air inlet connector, the air inlet connector is simultaneously connected with the air storage mechanism in a ventilation mode, an air inlet ball valve is arranged on the air inlet connector, the number of collected natural gas samples is controlled through the air inlet ball valve, single-group and multi-group sampling is achieved, the number of collected natural gas samples can be controlled through the air inlet connector, and meanwhile, two sampling modes of continuous sampling and intermittent sampling can be achieved through intermittent opening of the air inlet ball valve.
As a further preferred aspect of the present invention, the air intake joint and the air intake ball valve are each provided with six groups.
As a further preferred mode of the invention, the upper butterfly valve is arranged at the end M of the air inlet split flow pipeline, the lower butterfly valve is arranged at the end N of the air inlet split flow pipeline, and natural gas in the main gas transmission pipeline can enter the air inlet split flow pipeline by opening the upper butterfly valve and the lower butterfly valve, and then enter the gas storage mechanism through the air inlet joint, so that the collection of the natural gas is realized.
As a further preferred mode of the invention, the X end of the air inlet split flow pipeline is provided with a gas washing pipeline, the gas washing pipeline is provided with a gas washing ball valve, and inert gas can be filled into the pipeline communication mechanism and the gas storage mechanism through the gas washing pipeline to carry out exhaust, so that the technical effect of exhaust cleaning is realized.
Further, the gas storage mechanism comprises a six-way gas storage device, a buffer device and a gas storage carrying platform, wherein the gas storage carrying platform is arranged on one side of the pipeline communication mechanism, the six-way gas storage device is arranged on the gas storage carrying platform, and the buffer device is arranged on the gas storage carrying platform.
The six-link gas storage device comprises a gas storage system, a gas storage transmission system, a connecting pipeline, a sampling temporary storage system, a limiting system and a gas storage outer frame, wherein the gas storage outer frame is arranged on a gas storage carrying platform, the gas storage system is arranged on the gas storage outer frame, the sampling temporary storage system is arranged on the gas storage outer frame, the gas storage transmission system is arranged on the sampling temporary storage system, one end of the connecting pipeline is arranged on the gas storage system, the other end of the connecting pipeline is arranged on the sampling temporary storage system, and the limiting system is arranged on the gas storage outer frame.
The limiting system comprises a limiting chamber and an electromagnetic rod, wherein the limiting chamber is arranged on the gas storage outer frame, and the electromagnetic rod is arranged on the limiting chamber.
Further, the sampling temporary storage system comprises a gas temporary storage chamber, a gas storage transmission arm, a gas exhaust rack, a resistance sliding arm, a limiting arm, a resistance piston, a gas exhaust port, a gas inlet and a sliding groove, wherein the gas temporary storage chamber is arranged on a gas storage outer frame, the sliding groove is arranged on the gas temporary storage chamber, the resistance sliding arm is arranged on the gas temporary storage chamber in a sliding manner, the gas storage transmission arm is arranged on the sliding groove in a sliding manner, one end of the resistance sliding arm is arranged on the gas storage transmission arm, the resistance piston is arranged on the other end of the resistance sliding arm, the limiting arm is arranged on the gas storage transmission arm, the limiting arm is simultaneously arranged in the limiting chamber in a sliding manner, the gas inlet is arranged on the gas temporary storage chamber, the gas exhaust rack is arranged on the gas storage transmission arm, and the gas temporary storage chamber can be fully mixed by utilizing intermittent time, so that the uniformity of a sample is further improved; in addition, the setting of sampling temporary storage system has realized can cushion the high atmospheric pressure of natural gas, can carry out the technological effect of pressurization when exhausting simultaneously again, solves the contradictory technical problem that both need to decompress the natural gas when exhausting simultaneously and need to boost pressure when collecting the natural gas.
As a further preferred mode of the invention, the electromagnetic rod is arranged, the electromagnetic attraction is utilized to increase the friction resistance, slow down the sliding of the limiting arm, provide a certain resistance for the resistance piston, prolong the collection time, prolong the collection range and improve the accuracy of the sample.
Further, the gas storage system comprises a gas storage steel bottle, a pressure gauge, a safety relief valve, a fixed base and a floating piston, wherein the fixed base is arranged on the gas storage outer frame, the gas storage steel bottle is arranged on the fixed base, the pressure gauge is arranged at two ends of the gas storage steel bottle, the safety relief valve is arranged at two ends of the gas storage steel bottle, the floating piston is arranged in the gas storage steel bottle in a sliding mode, the opening and closing of the safety relief valve can be controlled by utilizing the air pressure difference, when gas is collected, the pressure of a gas temporary storage chamber is increased through a gas storage transmission system, natural gas is fed into the gas storage steel bottle, and the gas storage system can be timely closed after collection, so that gas leakage is avoided.
Further, the gas storage transmission system comprises an exhaust motor, a motor base, a gear base, a unidirectional transmission wheel, an exhaust transmission gear, an exhaust transmission shaft and an exhaust output gear, wherein the motor base is arranged on the gas temporary storage chamber, the gear base is arranged on the sliding groove, the exhaust motor is arranged on the motor base, the exhaust output gear is arranged on the output end of the exhaust motor, the exhaust transmission shaft is rotationally arranged on the gear base, the unidirectional transmission wheel is arranged on the exhaust transmission shaft, the exhaust transmission gear is arranged on the exhaust transmission shaft, and the exhaust transmission gear is in meshed connection with the exhaust output gear.
As a further preferred aspect of the present invention, the unidirectional driving wheel includes a rotation bearing a, a unidirectional gear, an inner ratchet, a rotation carrying disc, a pawl, a metal spring, a rotation baffle and a rotation bearing B, the rotation carrying disc is disposed on the exhaust transmission shaft, the rotation baffle is disposed on the rotation carrying disc, the rotation baffle is simultaneously disposed on the exhaust transmission shaft, the unidirectional gear is rotationally disposed on the rotation carrying disc through the rotation bearing a, the unidirectional gear is rotationally disposed on the rotation baffle through the rotation bearing B, the inner ratchet is disposed on the unidirectional gear, the pawl is rotationally disposed on the rotation carrying disc, the pawl is engaged with the inner ratchet, the unidirectional gear is simultaneously engaged with the exhaust rack, and by disposing an inner ratchet inside the unidirectional gear, the kinetic energy of the rotation of the unidirectional driving wheel is not transferred to the exhaust motor, and simultaneously, the unidirectional driving wheel is driven by the exhaust motor to realize the exhaust when the gas is transferred, and the technical effect of simultaneously avoiding the reverse kinetic energy transfer to the motor is realized.
As a further preferred aspect of the present invention, one end of the connecting pipe is disposed on the exhaust port, and the other end of the connecting pipe is disposed on the gas storage steel cylinder; and the connecting pipeline is provided with an exhaust ball valve.
Further, the buffer device comprises a buffer base table, an adjusting hydraulic arm, a buffer carrying disc, a buffer spring, a buffer sliding arm and a pressure sensing switch, wherein the buffer base table is arranged on the gas storage carrying platform, the adjusting hydraulic arm is arranged on the buffer base table, the buffer carrying disc is arranged on the telescopic end of the adjusting hydraulic arm, the buffer sliding arm is arranged on the buffer carrying disc in a sliding manner, one end of the buffer spring is arranged on the buffer sliding arm, the other end of the buffer spring is arranged on the buffer carrying disc, the pressure sensing switch is arranged on the buffer sliding arm, and buffer and speed reduction are carried out on the sampling temporary storage system in gas storage by using the buffer spring; the pressure sensing switch is arranged to feed back the signal of gas collection completion to the control module in a contact mode, so that the collection overload is avoided; the gas collection total amount of the sampling temporary storage system can be controlled by adjusting the expansion and contraction of the hydraulic arm, so that the suitability of various gas cylinders can be improved, the collection amount of the gas can be controlled, and the waste is avoided.
As a further preferred mode of the invention, the control module adopts an SCT89C52RC type singlechip, the control module is electrically connected with an electromagnetic rod, an exhaust motor, an exhaust ball valve, a regulating hydraulic arm, a pressure sensing switch, an air inlet ball valve, an upper butterfly valve, a lower butterfly valve and a gas washing ball valve, the control module controls the working state of the electromagnetic rod, the control module controls the working state of the exhaust motor, the control module controls the working state of the exhaust ball valve, the control module controls the working state of the regulating hydraulic arm, the control module controls the working state of the pressure sensing switch, the control module controls the working state of the air inlet ball valve, the control module controls the working state of the upper butterfly valve, the control module controls the working state of the lower butterfly valve, and the control module controls the working state of the gas washing ball valve.
The beneficial effects obtained by the invention by adopting the structure are as follows: the beneficial effect that this scheme provided a natural gas pipeline sampling device is as follows:
(1) According to the problem that the natural gas sampling air pressure strikes damage acquisition equipment, adopt the mode of intermediate structure transition sample, set up gas storage mechanism, realized the technological effect of buffering natural gas sampling air pressure, solved the technical problem that the air pressure strikes damage acquisition equipment.
(2) The setting of the sampling temporary storage system realizes the technical effects of buffering the high pressure of the natural gas and pressurizing during the exhaust, and solves the contradictory technical problems that the natural gas is depressurized and simultaneously exhausted and pressurized during the natural gas collection.
(3) The buffer device is arranged, and a buffer spring is used for buffering and decelerating the sampling temporary storage system during gas storage; the pressure sensing switch can feed back the signal of gas collection completion to the control module in a contact mode, so that the collection overload is avoided; the gas collection total amount of the sampling temporary storage system can be controlled by adjusting the expansion and contraction of the hydraulic arm, so that the suitability of various gas cylinders can be improved, the collection amount of the gas can be controlled, and the waste is avoided.
(4) Through set up an interior ratchet in the unidirectional gear is inside, realized when sampling temporary storage system gathers gas, unidirectional drive wheel pivoted kinetic energy can not transmit the exhaust motor, can be driven by the exhaust motor when shifting gas again simultaneously and realize the exhaust, realized unidirectional rotation simultaneously can avoid transmitting the technical effect of motor with reverse kinetic energy again.
(5) The opening and closing of the safety pressure release valve can be controlled by utilizing the air pressure difference, when the air is collected, the natural gas is sent into the air storage steel bottle through the pressure increase of the air temporary storage chamber, and the natural gas can be timely closed after the collection is completed, so that the air leakage is avoided.
(6) The gas temporary storage chamber can fully mix internal natural gas by utilizing intermittent time, so that the uniformity of the sample is further improved.
(7) The electromagnetic rod is arranged, friction resistance is increased by utilizing electromagnetic attraction, sliding of the limiting arm is slowed down, a certain resistance is provided for the resistance piston, collection time is prolonged, collection range is prolonged, and accuracy of a sample is improved.
(8) The gas washing pipeline is arranged, inert gas can be filled into the pipeline communication mechanism and the gas storage mechanism for exhausting, and the technical effect of exhaust cleaning is achieved.
(9) The setting of admission reposition of redundant personnel pipeline because the diameter of admission reposition of redundant personnel pipeline is far less than the gas transmission trunk line, and the velocity of flow of both is different, and pressure is also different, can let the natural gas that inputs from the gas transmission trunk line utilize pressure differential to mix once more, reduces the laminar flow phenomenon in the pipeline, improves the homogeneity of sample.
(10) The number of the collected natural gas samples is controlled through the air inlet ball valve, the sampling of a single group and a plurality of groups is realized, the number of the collected natural gas samples can be controlled through the arrangement of the air inlet joint, and meanwhile, two sampling modes of continuous sampling and intermittent sampling can be realized through intermittently opening the air inlet ball valve.
Drawings
FIG. 1 is a schematic diagram of a natural gas pipeline sampling apparatus according to the present invention;
FIG. 2 is a schematic structural view of a pipe communication mechanism;
FIG. 3 is a schematic diagram of a gas storage mechanism;
FIG. 4 is a schematic view of a part of the structure of a six-linked gas storage device;
FIG. 5 is a schematic view of the internal structure of a six-linked gas storage device;
FIG. 6 is a cross-sectional view of the gas storage system and the spacing system;
FIG. 7 is a partial cross-sectional view of a gas storage system;
FIG. 8 is a schematic diagram of a gas storage drive system;
FIG. 9 is an exploded view of the unidirectional drive wheel;
FIG. 10 is a schematic view of a structure of a buffering device;
FIG. 11 is a schematic diagram of a port connection of a pipe communication mechanism;
fig. 12 is a schematic diagram of a connection relationship of the control module.
Wherein, 1, a gas storage mechanism, 2, a pipeline communication mechanism, 3, a control module, 4, a main pipeline of gas transmission, 101, a six-way gas storage device, 102, a buffer device, 103, a gas storage carrying platform, 104, a gas storage system, 105, a gas storage transmission system, 106, a connecting pipeline, 107, a sampling temporary storage system, 108, a limiting system, 109, an outer frame of gas storage, 110, a limiting chamber, 111, an electromagnetic rod, 112, a gas temporary storage chamber, 113, a gas storage transmission arm, 114, a gas discharge rack, 115, a resistance sliding arm, 116, a limiting arm, 117, a resistance piston, 118, a gas discharge port, 119, a gas inlet, 120, a sliding groove, 121, a gas storage steel bottle, 122, a pressure gauge, 123, a safety relief valve, 124, a fixed base, 125 and a floating piston, 126, an exhaust motor, 127, a motor base, 128, a gear base, 129, a unidirectional driving wheel, 130, an exhaust driving gear, 131, an exhaust driving shaft, 132, an exhaust output gear, 133, a rotating bearing A,134, a unidirectional gear, 135, an inner ratchet, 136, a rotating carrying disc, 137, a pawl, 138, a metal spring piece, 139, a rotating baffle piece, 140, a rotating bearing B,141, an exhaust ball valve, 142, a buffer base, 143, a regulating hydraulic arm, 144, a buffer carrying disc, 145, a buffer spring, 146, a buffer sliding arm, 147, a pressure sensing switch, 201, an air inlet split pipeline, 202, an air inlet joint, 203, an air inlet ball valve, 204, an upper butterfly valve, 205, a lower butterfly valve, 206, a gas washing pipeline, 207 and a gas washing ball valve.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1, the invention provides a natural gas pipeline sampling device, which comprises a gas storage mechanism 1, a pipeline communication mechanism 2, a control module 3 and a gas transmission main pipeline 4, wherein the pipeline communication mechanism 2 is arranged on the gas transmission main pipeline 4, the gas storage mechanism 1 is arranged on one side of the pipeline communication mechanism 2, the gas storage mechanism 1 is simultaneously arranged on one side of the gas transmission main pipeline 4, and the control module 3 is arranged on the gas storage mechanism 1.
As shown in fig. 1, 2 and 11, the pipeline communication mechanism 2 comprises an air inlet split pipeline 201, the air inlet split pipeline 201 is an H-shaped air pipeline, four interfaces N, M, X and Y are arranged on the air inlet split pipeline 201, the air inlet split pipeline 201 is in ventilation connection with the main pipeline 4 of the air transmission pipeline through N, M ends, an air inlet joint 202 is arranged at the Y end of the air inlet split pipeline 201, the air inlet joint 202 is simultaneously in ventilation connection with the air storage mechanism 1, and an air inlet ball valve 203 is arranged on the air inlet joint 202; six groups of air inlet joints 202 and air inlet ball valves 203 are respectively arranged; an upper butterfly valve 204 is arranged at the M end of the air inlet diversion pipeline 201, and a lower butterfly valve 205 is arranged at the N end of the air inlet diversion pipeline 201; the X end of the air intake diversion pipeline 201 is provided with an air washing pipeline 206, and the air washing pipeline 206 is provided with an air washing ball valve 207.
As shown in fig. 1 and 3, the gas storage mechanism 1 includes a six-way gas storage device 101, a buffer device 102 and a gas storage carrying platform 103, the gas storage carrying platform 103 is arranged on one side of the pipeline communication mechanism 2, the six-way gas storage device 101 is arranged on the gas storage carrying platform 103, and the buffer device 102 is arranged on the gas storage carrying platform 103.
As shown in fig. 3, 4 and 5, the six-link gas storage device 101 comprises a gas storage system 104, a gas storage transmission system 105, a connecting pipeline 106, a sampling temporary storage system 107, a limiting system 108 and a gas storage outer frame 109, wherein the gas storage outer frame 109 is fixedly connected with the gas storage carrying platform 103, the sampling temporary storage system 107 is fixedly connected with the inner side of the gas storage outer frame 109, the gas storage transmission system 105 is arranged on the sampling temporary storage system 107, the gas storage system 104 is fixedly connected with the gas storage outer frame 109, one end of the connecting pipeline 106 is in ventilation connection with the gas storage system 104, the other end of the connecting pipeline 106 is in ventilation connection with the sampling temporary storage system 107, and the limiting system 108 is fixedly connected with the gas storage outer frame 109.
As shown in fig. 4, 5 and 6, the limiting system 108 includes a limiting chamber 110 and an electromagnetic rod 111, the limiting chamber 110 is fixedly connected with the gas storage outer frame 109, and the electromagnetic rod 111 is disposed on the limiting chamber 110.
As shown in fig. 4 and 6, the sampling temporary storage system 107 includes a gas temporary storage chamber 112, a gas storage transmission arm 113, an exhaust rack 114, a resistance sliding arm 115, a limiting arm 116, a resistance piston 117, an exhaust port 118, an air inlet 119 and a sliding groove 120, wherein the gas temporary storage chamber 112 is fixedly connected with the inner side of the gas storage outer frame 109, the exhaust port 118 and the air inlet 119 are simultaneously arranged on one side of the gas temporary storage chamber 112, the sliding groove 120 is arranged on the outer side wall of the gas temporary storage chamber 112, the resistance sliding arm 115 is slidably arranged on the gas temporary storage chamber 112, the gas storage transmission arm 113 is slidably connected with the sliding groove 120, one end of the resistance sliding arm 115 is fixedly connected with the gas storage transmission arm 113, the resistance piston 117 is arranged on the other end of the resistance sliding arm 115, the limiting arm 116 is fixedly connected with the gas storage transmission arm 113, the limiting arm 116 is simultaneously slidably arranged in the limiting chamber 110, and the exhaust rack 114 is arranged on the gas storage transmission arm 113.
As shown in fig. 4 and 7, the gas storage system 104 includes a gas storage steel cylinder 121, a pressure gauge 122, a safety relief valve 123, a fixed base 124 and a floating piston 125, the fixed base 124 is fixedly connected with the gas storage outer frame 109, the gas storage steel cylinder 121 is arranged on the fixed base 124, the pressure gauge 122 is arranged at two ends of the gas storage steel cylinder 121, the safety relief valve 123 is arranged at two ends of the gas storage steel cylinder 121, and the floating piston 125 is slidably arranged in the gas storage steel cylinder 121.
As shown in fig. 4 and 8, the gas storage transmission system 105 includes an exhaust motor 126, a motor base 127, a gear base 128, a unidirectional transmission wheel 129, an exhaust transmission gear 130, an exhaust transmission shaft 131 and an exhaust output gear 132, wherein the motor base 127 is arranged on the gas temporary storage chamber 112, the exhaust motor 126 is arranged on the motor base 127, the exhaust output gear 132 is arranged on an output end of the exhaust motor 126, the gear base 128 is arranged on the sliding groove 120, the exhaust transmission shaft 131 is rotatably arranged on the gear base 128, the unidirectional transmission wheel 129 is arranged on the exhaust transmission shaft 131, the exhaust transmission gear 130 is arranged on the exhaust transmission shaft 131, and the exhaust transmission gear 130 is in meshed connection with the exhaust output gear 132.
As shown in fig. 5, 8 and 9, the unidirectional driving wheel 129 comprises a rotary bearing a133, a unidirectional gear 134, an inner ratchet wheel 135, a rotary carrying disc 136, a pawl 137, a metal spring sheet 138, a rotary baffle 139 and a rotary bearing B140, wherein the rotary carrying disc 136 is fixedly connected with the exhaust transmission shaft 131, the rotary baffle 139 is fixedly connected with the rotary carrying disc 136, the rotary baffle 139 is simultaneously fixedly connected with the exhaust transmission shaft 131, the unidirectional gear 134 is movably connected with the rotary carrying disc 136 through the rotary bearing a133, the inner ratchet wheel 135 is arranged on the unidirectional gear 134, the unidirectional gear 134 is simultaneously meshed with the exhaust rack 114, the pawl 137 is rotatably arranged on the rotary carrying disc 136, the pawl 137 is meshed with the inner ratchet wheel 135, one end of the metal spring sheet 138 is arranged on the rotary carrying disc 136, and the other end of the metal spring sheet 138 is arranged on the pawl 137.
As shown in fig. 4, 6 and 7, one end of the connecting pipe 106 is provided on the exhaust port 118, and the other end of the connecting pipe 106 is provided on the gas storage cylinder 121; the connecting pipe 106 is provided with an exhaust ball valve 141.
As shown in fig. 3 and 10, the buffer device 102 includes a buffer base table 142, an adjusting hydraulic arm 143, a buffer carrying disc 144, a buffer spring 145, a buffer sliding arm 146 and a pressure-sensitive switch 147, the buffer base table 142 is fixedly connected with the gas storage carrying platform 103, the adjusting hydraulic arm 143 is arranged on the buffer base table 142, the buffer carrying disc 144 is arranged on a telescopic end of the adjusting hydraulic arm 143, the buffer sliding arm 146 is slidably arranged on the buffer carrying disc 144, one end of the buffer spring 145 is arranged on the buffer sliding arm 146, the other end of the buffer spring 145 is arranged on the buffer carrying disc 144, and the pressure-sensitive switch 147 is arranged on the buffer sliding arm 146.
As shown in fig. 12, the control module 3 is electrically connected with the electromagnetic rod 111, the exhaust motor 126, the exhaust ball valve 141, the adjusting hydraulic arm 143, the pressure sensing switch 147, the air inlet ball valve 203, the upper butterfly valve 204, the lower butterfly valve 205 and the air washing ball valve 207, the control module 3 controls the working state of the electromagnetic rod 111, the control module 3 controls the working state of the exhaust motor 126, the control module 3 controls the working state of the exhaust ball valve 141, the control module 3 controls the working state of the adjusting hydraulic arm 143, the control module 3 controls the working state of the pressure sensing switch 147, the control module 3 controls the working state of the air inlet ball valve 203, the control module 3 controls the working state of the upper butterfly valve 204, the control module 3 controls the working state of the lower butterfly valve 205, and the control module 3 controls the working state of the air washing ball valve 207.
When the gas storage cylinder 121 is not installed, and the connecting pipeline 106 is connected with the gas recovery cylinder (the gas recovery cylinder is of a conventional structure and is not limited in the application), the control module 3 controls the gas washing ball valve 207, the gas inlet ball valve 203 and the gas exhaust ball valve 141 to be in an open state, and helium is introduced through the gas washing pipeline 206 to discharge and collect residual gas in the gas storage cylinder; after the exhaust treatment is finished, the control module 3 controls the gas washing ball valve 207, the gas inlet ball valve 203 and the exhaust ball valve 141 to be in a closed state, and the gas storage steel bottle 121 is arranged on the fixed base 124 and connected with the connecting pipeline 106 to start gas collection; when continuous gas collection of a single gas storage steel bottle 121 is carried out, the control module 3 starts the upper butterfly valve 204 and the lower butterfly valve 205 to be in an opening state, natural gas in the gas transmission main pipeline 4 flows into the gas inlet split pipeline 201, then the control module 3 controls one gas inlet ball valve 203 to be in an opening state, natural gas enters the gas temporary storage chamber 112 through the gas inlet joint 202, natural gas enters the gas temporary storage chamber 112 by utilizing the pressure of the natural gas of the gas transmission main pipeline 4 and pushes the resistance piston 117 to slide towards the side far away from the gas inlet 119, the resistance piston 117 slides to drive the resistance sliding arm 115 to slide towards the side far away from the gas inlet 119, the resistance sliding arm 115 slides to drive the gas storage transmission arm 113 to slide towards the side far away from the gas inlet 119, the gas storage transmission rack 114 slides to drive the gas discharge rack 114 and the limiting arm 116 to slide towards the side far away from the gas inlet 119, the gas discharge rack 114 slides to drive the unidirectional gear 134, the free force and the non-meshing transmission between the ratchet wheel 135 and the pawl 137 is not carried out, kinetic energy of the unidirectional gear 134 is absorbed by the rotary bearing A133 and the rotary bearing B140, the unidirectional force 129 is absorbed by the rotary bearing 129, in the gas collection process, the control module 3 can start the electromagnetic rod 111, and use of electromagnetic to slow down the sliding arm 116 to slide to drive the resistance piston 116 to slide towards the side far away from the gas inlet 119, the side far from the gas storage tank 119, the side is gradually extended, the air storage device is extended, and the pressure-sensitive to be sensed, and the pressure is gradually sensed by the air storage device is gradually, and the air-tight and the air storage valve is extended, and the air is gradually and contacted with the air storage valve is contacted with the air, and the air storage valve and is gradually and loaded; the control module 3 receives a signal fed back by the pressure sensing switch 147 and controls the air inlet ball valve 203 to be in a closed state, controls the air outlet ball valve 141 to be in an open state and starts to transfer air, the control module 3 starts the air outlet motor 126, the control module 3 closes the electromagnetic rod 111, the air outlet motor 126 drives the air outlet gear 132 to rotate, the air outlet gear 132 rotates to drive the air outlet transmission gear 130 to rotate, the air outlet transmission gear 130 rotates to drive the air outlet transmission shaft 131 to rotate, the air outlet transmission shaft 131 rotates to drive the rotating carrying disc 136 to rotate, at the moment, the inner ratchet wheel 135 is meshed with the pawl 137 to bear force, the rotating carrying disc 136 drives the inner ratchet wheel 135 to rotate through the pawl 137, the inner ratchet wheel 135 rotates to drive the one-way gear 134 to rotate, the one-way gear 134 rotates to drive the air outlet rack 114 to slide towards the side close to the air inlet 119, the air outlet rack 114 slides to drive the air storage transmission arm 113 to slide towards the side close to the air inlet 119, the gas storage transmission arm 113 slides to drive the resistance sliding arm 115 to slide towards the side close to the gas inlet 119, the resistance sliding arm 115 slides to drive the resistance piston 117 to slide towards the side close to the gas inlet 119, the resistance piston 117 slides to send natural gas in the gas temporary storage chamber 112 into the connecting pipeline 106, the natural gas enters the gas storage steel bottle 121 from the connecting pipeline 106, the pressure increase received by the safety relief valve 123 is in an open state, the natural gas enters the gas storage steel bottle 121 through the safety relief valve 123 and the pressure gauge 122, the floating piston 125 is pushed to move towards the side far away from the connecting pipeline 106, meanwhile, the floating piston 125 presses gas on the other side in the gas storage steel bottle 121, the safety relief valve 123 on the other side is opened by pressure to discharge the gas on the other side in the gas storage steel bottle 121, and after gas transfer is completed, the control module 3 closes the gas discharge ball valve 141 to separate the gas storage steel bottle 121, and gas collection is completed; in addition, the device can perform intermittent gas sampling of the plurality of groups of gas storage steel cylinders 121, and the difference operation is that the plurality of groups of gas inlet ball valves 203 are controlled to be opened and closed intermittently, so that natural gas enters the corresponding gas temporary storage chambers 112, and meanwhile, the natural gas filled into the gas temporary storage chambers 112 at different stages can be fully mixed by using intermittent time.
The above is a specific workflow of the present invention, and the next time the present invention is used, the process is repeated.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (9)
1. A natural gas pipeline sampling device, characterized in that: the gas storage device comprises a gas storage mechanism (1), a pipeline communication mechanism (2), a control module (3) and a gas transmission main pipeline (4), wherein the pipeline communication mechanism (2) is arranged on the gas transmission main pipeline (4), the gas storage mechanism (1) is arranged on one side of the pipeline communication mechanism (2), and the control module (3) is arranged on the gas storage mechanism (1); the gas storage mechanism (1) comprises a six-way gas storage device (101), a buffer device (102) and a gas storage carrying platform (103), wherein the six-way gas storage device (101) is in ventilation connection with the pipeline communication mechanism (2), the gas storage carrying platform (103) is arranged at the bottom of the six-way gas storage device (101), and the buffer device (102) is arranged on the gas storage carrying platform (103); the six-link gas storage device (101) comprises a gas storage system (104), a gas storage transmission system (105), a connecting pipeline (106), a sampling temporary storage system (107), a limiting system (108) and a gas storage outer frame (109), wherein the gas storage outer frame (109) is fixedly connected with a gas storage carrying platform (103), the gas storage system (104) is fixedly connected with the outer side of the gas storage outer frame (109), the sampling temporary storage system (107) is fixedly connected with the inner side of the gas storage outer frame (109), the gas storage transmission system (105) is arranged on the sampling temporary storage system (107), one end of the connecting pipeline (106) is connected with the gas storage system (104) in a ventilation mode, and the other end of the connecting pipeline (106) is connected with the sampling temporary storage system (107) in a ventilation mode, and the limiting system (108) is fixedly connected with the gas storage outer frame (109); the sampling temporary storage system (107) comprises a gas temporary storage chamber (112), a gas storage transmission arm (113), an exhaust rack (114), a resistance sliding arm (115), a limiting arm (116), a resistance piston (117), an exhaust port (118), an air inlet (119) and a sliding groove (120), wherein the gas temporary storage chamber (112) is fixedly connected with the inner side of a gas storage outer frame (109), the sliding groove (120) is formed in the outer side wall of the gas temporary storage chamber (112), the resistance sliding arm (115) is slidably arranged in the gas temporary storage chamber (112), the gas storage transmission arm (113) is slidably connected with the sliding groove (120), one end of the resistance sliding arm (115) is fixedly connected with the gas storage transmission arm (113), the resistance piston (117) is arranged at the other end of the resistance sliding arm (115), the limiting arm (116) is fixedly connected with the gas storage transmission arm (113), the limiting arm (116) is simultaneously slidably arranged in the limiting chamber (110), the exhaust rack (114) is arranged on the gas storage transmission arm (113), and the air inlet (119) and the exhaust port (118) are simultaneously arranged on one side of the gas temporary storage chamber (112).
2. A natural gas pipeline sampling apparatus as claimed in claim 1, wherein: the pipeline communication mechanism (2) comprises an air inlet split pipeline (201), the air inlet split pipeline (201) is an H-shaped ventilation pipeline, four interface ends N, M, X and Y are arranged on the air inlet split pipeline (201), the air inlet split pipeline (201) is in ventilation connection with the main gas pipeline (4) through the N, M interface end, and the X, Y interface end is in a closed state; an air inlet joint (202) is arranged at the Y-interface end of the air inlet shunt pipeline (201), the air inlet joint (202) is connected with the air storage mechanism (1) in a ventilation way, and an air inlet ball valve (203) is arranged on the air inlet joint (202); six groups of air inlet joints (202) and six groups of air inlet ball valves (203) are respectively arranged; an upper butterfly valve (204) is arranged at the M interface end of the air inlet split pipeline (201), and a lower butterfly valve (205) is arranged at the N interface end of the air inlet split pipeline (201); an air washing pipeline (206) is arranged at the X-port end of the air inlet split pipeline (201), and an air washing ball valve (207) is arranged on the air washing pipeline (206).
3. A natural gas pipeline sampling apparatus as claimed in claim 2, wherein: the limiting system (108) comprises a limiting chamber (110) and an electromagnetic rod (111), wherein the limiting chamber (110) is fixedly connected with the gas storage outer frame (109), and the electromagnetic rod (111) is arranged on the limiting chamber (110).
4. A natural gas pipeline sampling apparatus according to claim 3, wherein: the gas storage system (104) comprises a gas storage steel cylinder (121), a pressure gauge (122), a safety pressure relief valve (123), a fixed base (124) and a floating piston (125), wherein the fixed base (124) is fixedly connected with the outer side of a gas storage outer frame (109), the gas storage steel cylinder (121) is arranged on the fixed base (124), the pressure gauge (122) is arranged at two ends of the gas storage steel cylinder (121), the safety pressure relief valve (123) is arranged at two ends of the gas storage steel cylinder (121), and the floating piston (125) is slidably arranged in the gas storage steel cylinder (121).
5. A natural gas pipeline sampling apparatus as defined in claim 4, wherein: the gas storage transmission system (105) comprises an exhaust motor (126), a motor base (127), a gear base (128), a one-way driving wheel (129), an exhaust driving gear (130), an exhaust driving gear (131) and an exhaust output gear (132), wherein the motor base (127) is arranged on the gas temporary storage chamber (112), the gear base (128) is arranged on the sliding groove (120), the exhaust motor (126) is arranged on the motor base (127), the exhaust output gear (132) is arranged on the output end of the exhaust motor (126), the exhaust driving gear (131) is rotationally arranged on the gear base (128), the one-way driving wheel (129) is arranged on the exhaust driving gear (131), the exhaust driving gear (130) is arranged on the exhaust driving gear (131), and the exhaust driving gear (130) is in meshed connection with the exhaust output gear (132).
6. A natural gas pipeline sampling apparatus as defined in claim 5, wherein: the unidirectional transmission wheel (129) comprises a rotary bearing A (133), a unidirectional gear (134), an inner ratchet wheel (135), a rotary carrying disc (136), a pawl (137), a metal spring plate (138), a rotary baffle (139) and a rotary bearing B (140), wherein the rotary carrying disc (136) is fixedly connected with an exhaust transmission shaft (131), the rotary baffle (139) is fixedly connected with the rotary carrying disc (136), the rotary baffle (139) is simultaneously fixedly connected with the exhaust transmission shaft (131), the unidirectional gear (134) is movably connected with the rotary carrying disc (136) through the rotary bearing A (133), the unidirectional gear (134) is simultaneously movably connected with the rotary baffle (139) through the rotary bearing B (140), the inner ratchet wheel (135) is arranged on the unidirectional gear (134), the unidirectional gear (134) is simultaneously meshed and connected with an exhaust rack (114), the pawl (137) is rotationally arranged on the rotary carrying disc (136), one end of the pawl (139) is meshed and connected with the inner ratchet wheel (135), and the other end of the metal spring plate (138) is rotationally arranged on the pawl (137).
7. A natural gas pipeline sampling apparatus as defined in claim 6, wherein: one end of the connecting pipeline (106) is connected with the exhaust port (118) in a ventilation way, and the other end of the connecting pipeline (106) is connected with the gas storage steel cylinder (121) in a ventilation way; an exhaust ball valve (141) is arranged on the connecting pipeline (106).
8. A natural gas pipeline sampling apparatus as defined in claim 7, wherein: the buffer device (102) comprises a buffer base table (142), an adjusting hydraulic arm (143), a buffer carrying disc (144), a buffer spring (145), a buffer sliding arm (146) and a pressure sensing switch (147), wherein the buffer base table (142) is fixedly connected with the gas storage carrying platform (103), the adjusting hydraulic arm (143) is arranged on the buffer base table (142), the buffer carrying disc (144) is arranged on a telescopic end of the adjusting hydraulic arm (143), the buffer sliding arm (146) is slidably arranged on the buffer carrying disc (144), one end of the buffer spring (145) is arranged on the buffer sliding arm (146), the other end of the buffer spring (145) is arranged on the buffer carrying disc (144), and the pressure sensing switch (147) is arranged on the buffer sliding arm (146).
9. A natural gas pipeline sampling apparatus as defined in claim 8, wherein: the control module is electrically connected with the electromagnetic rod (111), the exhaust motor (126), the exhaust ball valve (141), the adjusting hydraulic arm (143), the pressure sensing switch (147), the air inlet ball valve (203), the upper butterfly valve (204), the lower butterfly valve (205) and the air washing ball valve (207).
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| CN202310063458.0A CN115807915B (en) | 2023-02-06 | 2023-02-06 | Natural gas pipeline sampling device |
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| CN118031102B (en) * | 2024-04-11 | 2024-06-04 | 山西宁扬能源有限公司 | Liquefied natural gas sampling and collecting equipment |
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