CN114542992B - Natural gas pipe network metering working condition remote monitoring system based on Internet of things - Google Patents
Natural gas pipe network metering working condition remote monitoring system based on Internet of things Download PDFInfo
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- CN114542992B CN114542992B CN202210172139.9A CN202210172139A CN114542992B CN 114542992 B CN114542992 B CN 114542992B CN 202210172139 A CN202210172139 A CN 202210172139A CN 114542992 B CN114542992 B CN 114542992B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a natural gas pipe network metering working condition remote monitoring system based on the Internet of things, which comprises an object platform, a sensing network platform, a management platform, a service platform and a user platform which are sequentially interacted, wherein the object platform comprises a temperature sensor and a pressure sensor which are arranged in a pipeline, and the temperature sensor and the pressure sensor upload the monitored natural gas information to the management platform through the sensing network platform; the management platform monitors and pre-warns the acquired temperature and pressure information of the natural gas; the management platform receives user demand information through the service platform and the user platform, and issues a control instruction to the object platform through the sensor network platform. The invention can detect the pressure and the temperature of the natural gas in the pipeline in real time, and transmit the acquired information to the management platform in real time, thereby realizing the remote monitoring of the natural gas through the management platform.
Description
Technical Field
The invention relates to the technical field of natural gas metering, in particular to a natural gas pipe network metering working condition remote monitoring system based on the Internet of things.
Background
Natural gas refers to a type of combustible gas found in nature and is a fossil fuel, including gases formed by various natural processes in the atmosphere, water and rock circles (including oilfield gas, gas field gas, mudstone gas, coalbed gas, biogenic gas, etc.). The definition of "natural gas" has been used for a long time in a narrow definition from the viewpoint of energy, and refers to a mixture of hydrocarbon and non-hydrocarbon gases that are naturally deposited in a formation.
At present, the existing natural gas metering system has single function and cannot remotely monitor the natural gas in the pipeline.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and aims to provide a natural gas pipe network metering working condition remote monitoring system based on the Internet of things, which can detect the pressure and the temperature of natural gas in a pipeline in real time, transmit acquired information to a management platform in real time and realize remote monitoring of the natural gas through the management platform.
The invention is realized by the following technical scheme:
the natural gas pipe network metering working condition remote monitoring system based on the Internet of things comprises an object platform, a sensing network platform, a management platform, a service platform and a user platform which are sequentially interacted, wherein the object platform comprises a temperature sensor and a pressure sensor which are arranged in a pipeline, and the temperature sensor and the pressure sensor upload the monitored natural gas information to the management platform through the sensing network platform; the management platform monitors and pre-warns the acquired temperature and pressure information of the natural gas; the management platform receives user demand information through the service platform and the user platform, and issues a control instruction to the object platform through the sensor network platform.
Further, still be equipped with the dead lever on the pipeline inner wall, be equipped with first extensible member on the dead lever, first extensible member can be along the axial extension of pipeline, still is equipped with the connector on the direction end that first extensible member flows along the natural gas in the pipeline, temperature sensor is fixed in on the connector.
Further, a movable piece and a fifth elastic piece are further arranged in the first telescopic piece, the movable piece penetrates through two ends of the first telescopic piece along the axial direction of the first telescopic piece, and the movable piece can open or close the two ends of the first telescopic piece; and two ends of the fifth elastic piece are respectively connected with two ends of the inner part of the first telescopic piece.
Further, the movable piece includes second extensible member, first shutoff pole and second shutoff pole are located the both ends of second extensible member respectively, first extensible member is equipped with the through-hole with the connector link, the second shutoff pole is located the through-hole, first shutoff pole is connected with the other end of first extensible member, and the axial displacement of first extensible member can be followed to the second shutoff pole.
Further, the second telescopic member is equipped with the sleeve towards the tip of second shutoff pole direction, sleeve and second telescopic member fixed connection, and the sleeve cover is on the second shutoff pole, the tip of second shutoff pole towards second telescopic member direction be equipped with the inside intercommunication blind hole of second telescopic member, still be equipped with on the outer wall of second shutoff pole with the first gas pocket and the second gas pocket of blind hole intercommunication, interval between second gas pocket and the first gas pocket is greater than the length of through-hole.
Further, a first groove is formed in the inner wall of the through hole of the first telescopic piece, and a first elastic piece and a positioning rod are arranged in the first groove; the outer wall of the second plugging rod is also provided with a positioning hole, and the first elastic piece can push the positioning rod to be inserted into the positioning hole; still be equipped with the movable rod in the blind hole of second shutoff pole, be equipped with the second recess on the outer wall of movable rod, be equipped with second elastic component and unlocking lever in the second recess, the elasticity of second elastic component is greater than the elasticity of first elastic component, still be equipped with the passageway that internal diameter and unlocking lever external diameter are unanimous in the second shutoff pole, passageway one end and locating hole intercommunication, the other end and blind hole intercommunication.
Further, a third elastic piece is arranged on the inner bottom of the blind hole of the second plugging rod and is connected with the movable rod; the second plugging rod is also provided with a fourth elastic piece, the fourth elastic piece is sleeved on the second plugging rod, one end of the fourth elastic piece is connected with the outer wall of the second plugging rod, and the other end of the fourth elastic piece is connected with the inner wall, close to the connector, of the first telescopic piece; the method comprises the steps of carrying out a first treatment on the surface of the The side wall of the movable rod is also provided with a U-shaped first connecting hole, and the two ends of the first connecting hole can be communicated with the first air hole and the second air hole.
Further, the side wall of the connector is also provided with an exhaust hole which can be communicated with the second air hole; the connector is provided with an accommodating groove communicated with the first telescopic part through hole, and the second plugging rod can be inserted into the accommodating groove.
Further, an air passage which is communicated with the two ends of the first blocking rod is arranged in the first blocking rod, and the air passage is communicated with the second telescopic piece; a supporting rod is further arranged in the air passage of the first plugging rod, a driving mechanism is arranged on the supporting rod, and a movable block with the outer diameter matched with the inner diameter of the air passage is arranged on an output shaft of the driving mechanism; the outer wall of the first plugging rod is further provided with a third air hole and a fourth air hole, the side wall of the movable block is further provided with a U-shaped second connecting hole, and the second connecting hole can be used for communicating the third air hole with the fourth air hole.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, the temperature and the pressure of the metering site of the natural gas pipeline network can be monitored on site and uploaded in real time by using the temperature sensor and the pressure sensor, and the management platform can monitor and early warn the acquired temperature and pressure information according to a preset program, so that the remote monitoring of the natural gas is realized;
2. according to the invention, the temperature sensor can be driven to move in the pipeline by the aid of the first telescopic piece, so that the temperature sensor can monitor the temperature of natural gas in different areas in the pipeline in real time, and compared with a traditional mode of fixedly mounting the temperature sensor, the monitoring area of the temperature sensor is enlarged.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic view of a temperature sensor of the present invention in a pipeline;
FIG. 2 is a schematic view of the structure of the inside of the first telescopic member according to the present invention;
FIG. 3 is a schematic view of the structure of the first telescopic member of the present invention in another state;
FIG. 4 is a schematic view of the internal structure of a first plugging rod according to the present invention;
FIG. 5 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
fig. 6 is an enlarged schematic view of the B portion of fig. 2 according to the present invention.
In the drawings, the reference numerals and corresponding part names:
the device comprises a pipeline, a 2-temperature sensor, a 3-first telescopic part, a 4-fixed rod, a 5-movable part, a 6-connector, a 7-sleeve, an 8-second telescopic part, a 9-fifth elastic part, a 10-first plugging rod, an 11-accommodating groove, a 12-fourth elastic part, a 13-second plugging rod, a 14-movable block, a 15-second connecting hole, a 16-output shaft, a 17-fourth air hole, a 18-unlocking rod, a 19-first elastic part, a 20-positioning rod, a 21-third elastic part, a 22-second elastic part, a 23-movable rod, a 24-vent hole, a 25-first connecting hole, a 26-first air hole, a 27-second air hole, a 28-third air hole and a 29-driving mechanism.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Examples
As shown in fig. 1 to 6, the system comprises an object platform, a sensing network platform, a management platform, a service platform and a user platform which are sequentially interacted, wherein the object platform comprises a temperature sensor 2 and a pressure sensor which are arranged in a pipeline 1, and the temperature sensor 2 and the pressure sensor upload the monitored natural gas information to the management platform through the sensing network platform; the management platform monitors and pre-warns the acquired temperature and pressure information of the natural gas; the management platform receives user demand information through the service platform and the user platform, and issues a control instruction to the object platform through the sensor network platform.
The system comprises a temperature sensor 2 and a pressure sensor, wherein the temperature sensor 2 and the pressure sensor are arranged at different positions of a pipe 1, the temperature of the natural gas in the pipe 1 can be monitored in real time by the aid of the temperature sensor 2, the pressure of the natural gas in the pipe 1 can be monitored in real time by the aid of the pressure sensor, information acquired by the temperature sensor 2 and the pressure sensor is uploaded to a management platform in real time by the aid of a sensor network platform, acquired temperature and pressure information is monitored and early-warned by the aid of the management platform according to a preset program, the purpose of monitoring the natural gas remotely is achieved, the management platform uploads user demand information to a user platform through a service platform, and related control instructions are issued to the object platform by the aid of the sensor network platform.
Still be equipped with dead lever 4 on the pipeline 1 inner wall, be equipped with first extensible member 3 on the dead lever 4, first extensible member 3 can be along the axial extension of pipeline 1, still is equipped with connector 6 on the direction end that first extensible member 3 flows along the natural gas in the pipeline 1, temperature sensor 2 is fixed in on the connector 6.
Because the natural gas in the pipeline 1 is easy to be influenced by the outside world, the natural gas temperature at different positions in the pipeline 1 is caused to have a difference, therefore, the traditional mode is to install different numbers of temperature sensors 2 in the pipeline 1 according to a certain interval, so as to obtain the natural gas temperature at different positions in the pipeline 1 in real time, but because a certain distance is reserved between two adjacent temperature sensors 2, the traditional temperature sensors 2 cannot effectively obtain the natural gas temperature information at different positions in the pipeline 1 by adopting a fixed installation mode, and therefore, the object platform of the technical scheme is also provided with a first telescopic piece 3 for adjusting the position of the temperature sensors 2, the first telescopic piece 3 is fixed on the inner wall of the pipeline 1 through a fixed rod 4, one end of the first telescopic piece 3 is ensured to be fixed, and the other end of the first telescopic piece can move along the flow direction of the natural gas in the pipeline 1, so as to change the position of the temperature sensors 2 in the pipeline 1, and further judge whether the natural gas temperature at different positions in the pipeline 1 is influenced by the outside world.
The inside of the first telescopic piece 3 is also provided with a movable piece 5 and a fifth elastic piece 9, the movable piece 5 penetrates through two ends of the first telescopic piece 3 along the axial direction of the telescopic piece 3, and the movable piece 5 can open or close the two ends of the first telescopic piece 3; both ends of the fifth elastic member 9 are respectively connected with both ends of the inside of the first telescopic member 3.
According to the technical scheme, the first telescopic piece 3 is a metal corrugated pipe, after the inside of the metal corrugated pipe is inflated, the metal corrugated pipe can be stretched along the axial direction of the metal corrugated pipe, so that when the position of the temperature sensor 2 on the first telescopic piece 3 in the pipeline 1 needs to be changed, the tail end of the first telescopic piece 3 is opened through the movable piece 5, natural gas in the pipeline 1 can enter the first telescopic piece 3 through the tail end of the first telescopic piece 3, the metal corrugated pipe is inflated into the first telescopic piece 3, the first telescopic piece 3 is forced to stretch along the direction of natural gas flow in the pipeline 1, the position of the temperature sensor 2 in the pipeline 1 is changed, and the measurement of the natural gas temperature at different positions in the pipeline 1 is realized; when the gas introduced into the first telescopic member 3 needs to be exhausted, the arranged movable member 5 is utilized to exhaust the gas in the first telescopic member 3, so that the first telescopic member 3 is forced to retract, the temperature sensor 2 is further enabled to move back and forth within a preset range, and the natural gas in the region in the pipeline 1 is monitored.
The movable piece 5 comprises a second telescopic piece 8, a first plugging rod 10 and a second plugging rod 13, wherein the first plugging rod 10 and the second plugging rod 13 are respectively positioned at two ends of the second telescopic piece 8, a through hole is formed in the connecting end of the first telescopic piece 3 and the connecting head 6, the second plugging rod 13 is positioned in the through hole, the first plugging rod 10 is connected with the other end of the first telescopic piece 3, and the second plugging rod 13 can move along the axial direction of the first telescopic piece 3.
The second telescopic piece 8 is also a metal corrugated pipe, and when the first telescopic piece 3 stretches or contracts, the second telescopic piece 8 can stretch together, so that the first plugging rod 10 and the second plugging rod 13 at the two ends of the second telescopic piece 8 can keep synchronous movement; the first plugging rod 10 is movably connected with the tail of the first telescopic piece 3, and the first plugging rod 10 can open or close the tail of the first telescopic piece 3, namely, whether natural gas in the pipeline 1 enters the first telescopic piece 3 or not is controlled; the second plugging rod 13 can open or close the head of the first telescopic member 3, i.e. control whether the natural gas introduced into the first telescopic member 3 is discharged from the first telescopic member 3.
The end of second extensible member 8 towards second shutoff pole 13 direction is equipped with sleeve 7, sleeve 7 and second extensible member 8 fixed connection, and sleeve 7 cover is on second shutoff pole 13, second shutoff pole 13 is equipped with the inside intercommunication blind hole with second extensible member 8 towards the end of second extensible member 8 direction, still be equipped with first gas pocket 26 and the second gas pocket 27 with the blind hole intercommunication on the outer wall of second shutoff pole 13, the interval between second gas pocket 27 and the first gas pocket 26 is greater than the length of through-hole.
The sleeve 7 is used for being connected with the second plugging rod 13, when the head of the first telescopic member 3 needs to be opened by utilizing the second plugging rod 13, the second plugging rod 13 is moved towards the direction of the connector 6, the second air hole 27 on the second plugging rod 13 is forced to be positioned at the outer side of the first telescopic member 3, the first air hole 26 is positioned in the first telescopic member 3, at the moment, the inside of the first telescopic member 3 is communicated with the inside of the pipeline 1 under the action of the first air hole 26 and the second air hole 27, and therefore, the gas positioned in the first telescopic member 3 can flow into the pipeline 1 through the first air hole 26 and the second air hole 27 in sequence.
The inner wall of the through hole of the first telescopic piece 3 is also provided with a first groove, and a first elastic piece 19 and a positioning rod 20 are arranged in the first groove; the outer wall of the second plugging rod 13 is also provided with a positioning hole, and the first elastic piece 19 can push the positioning rod 20 to be inserted into the positioning hole; the blind hole of second shutoff pole 13 is interior still to be equipped with movable rod 23, be equipped with the second recess on the outer wall of movable rod 23, be equipped with second elastic component 22 and unlocking lever 18 in the second recess, the elasticity of second elastic component 22 is greater than the elasticity of first elastic component 19, still be equipped with the passageway that the internal diameter is unanimous with unlocking lever 18 external diameter in the second shutoff pole 13, passageway one end and locating hole intercommunication, the other end and blind hole intercommunication.
In order to ensure that the second plugging rod 13 positioned on the head of the first telescopic member 3 can move along with the first telescopic member 3 in the stretching process of the first telescopic member 3, so as to prevent the second plugging rod 13 from falling off from the first telescopic member 3, for this purpose, the technical scheme is provided with a first elastic member 19 and a positioning rod 20, the positioning rod 20 is inserted into the positioning hole of the second plugging rod 13 by utilizing the elastic force generated by the first elastic member 19, and the second air hole 27 is positioned in the first telescopic member 3, and the head of the first telescopic member 3 at this time is in a plugging state; when the gas in the first telescopic member 3 needs to be exhausted, the moving rod 23 in the blind hole moves towards the direction of the inner bottom of the blind hole, and when the unlocking rod 18 on the moving rod 23 moves to the channel of the second plugging rod 13, the unlocking rod 18 is pushed to be inserted into the channel under the action of the second elastic member 22, the positioning rod 20 in the positioning hole is pushed back into the first groove, the maximum displacement of the movement of the unlocking rod 18 is that the end of the positioning rod is flush with the outer wall of the second plugging rod 13, and at the moment, the constraint of the positioning rod 20 on the second plugging rod 13 is removed, so that the second plugging rod 13 can freely move at the head of the first telescopic member 3.
A third elastic piece 21 is further arranged on the inner bottom of the blind hole of the second plugging rod 13, and the third elastic piece 21 is connected with a moving rod 23; the second plugging rod 13 is also provided with a fourth elastic piece 12, the fourth elastic piece 12 is sleeved on the second plugging rod 13, one end of the fourth elastic piece 12 is connected with the outer wall of the second plugging rod 13, and the other end of the fourth elastic piece 12 is connected with the inner wall, close to the connector 6, of the first telescopic piece 3; the side wall of the movable rod 23 is also provided with a U-shaped first connecting hole 25, and two ends of the first connecting hole 25 can communicate the first air hole 26 with the second air hole 27.
The third elastic member 21 is used for connecting the moving rod 23, when the moving rod 23 moves towards the direction of the inner bottom of the blind hole, and the moving rod 23 can compress the third elastic member 21 when unlocking the positioning rod 20, so that after the gas in the first telescopic member 3 is discharged, the moving rod 23 can be pushed to move to the initial position again under the action of the third elastic member 21.
The fourth elastic member 12 is configured to constrain the second plugging rod 13, and when the second plugging rod 13 extends out of the first telescopic member 3, the fourth elastic member 12 is in a compressed state, so that after the gas in the first telescopic member 3 is discharged, the second plugging rod 13 can be pushed to retract into the first telescopic member 3 under the action of the fourth elastic member 12.
Since the positioning rod 20 is unlocked by moving the moving rod 23 in the blind hole, the first air hole 26 and the second air hole 27 can be communicated when the second plugging rod 13 extends out of the first telescopic member 3 after the positioning rod 20 is unlocked, and the moving rod 23 is provided with the first connecting hole 25.
The side wall of the connector 6 is also provided with an exhaust hole 24 which can be communicated with the second air hole 27; the connector 6 is provided with a containing groove 11 communicated with the through hole of the first telescopic piece 3, and the second plugging rod 13 can be inserted into the containing groove 11.
The exhaust hole 24 is used for being communicated with the second air hole 27, when the second air hole 27 on the second plugging rod 13 moves to be communicated with the exhaust hole 24, the air in the first telescopic piece 3 sequentially passes through the first air hole 26, the second connecting hole 25 and the second air hole 27 and finally is discharged into the pipeline 1 through the exhaust hole 24, and the exhaust hole 24 is internally provided with a one-way valve, so that the air can be discharged into the pipeline 1 through the exhaust hole 24, and the air in the pipeline 1 cannot enter into the exhaust hole 24 through the one-way valve.
An air passage which communicates the two ends of the first plugging rod 10 is arranged in the first plugging rod 10, and the air passage is communicated with the second telescopic piece 8; a supporting rod is further arranged in the air passage of the first plugging rod 10, a driving mechanism 29 is arranged on the supporting rod, and a movable block 14 with the outer diameter matched with the inner diameter of the air passage is arranged on an output shaft 16 of the driving mechanism 29; the outer wall of the first plugging rod 10 is further provided with a third air hole 28 and a fourth air hole 17, the third air hole 28 is located in the first telescopic member 3, the fourth air hole 17 is located outside the first telescopic member 3, the side wall of the movable block 14 is further provided with a second U-shaped connecting hole 15, and the second connecting hole 15 can be used for communicating the third air hole 28 with the fourth air hole 17.
In the initial state, the second connecting hole 15 on the movable block 14 is misplaced with the fourth air hole 17 and the third air hole 28, namely, the second connecting hole 15 is not communicated with the third air hole 28 and the fourth air hole 17, when the first telescopic piece 3 is required to be inflated, the management platform sends an instruction to the driving mechanism 29 through the sensing network platform, the driving mechanism 29 is a hydraulic cylinder, the driving mechanism 29 drives the movable block 14 to move in the air passage of the first blocking rod 10 by utilizing the output shaft 16, the second connecting hole 15 is communicated with the third air hole 28 and the fourth air hole 17, at the moment, because the natural gas in the pipeline 1 is in a high-pressure state, the pressure of the natural gas is higher than the pressure in the first telescopic piece 3, therefore, the high-pressure natural gas in the pipeline 1 enters the first telescopic piece 3 through the fourth air hole 17 and the second connecting hole 15, and finally enters the first telescopic piece 3 through the third air hole 28 to inflate the first telescopic piece 3, the head of the first telescopic piece 3 provided with the temperature sensor 2 is forced to stretch in the pipeline 1, the position of the first telescopic piece 3 is changed, after the first telescopic piece 3 is in the maximum stretching amount, the driving mechanism 29 is used for driving the movable block 14 to disconnect the second connecting hole 15 from the third air hole 28 and the fourth air hole 17, the third air hole 28 at the moment is in a state of being communicated with the air passage of the first plugging rod 10, therefore, the air in the first telescopic piece 3 enters into the first plugging rod 10 through the third air hole 28 and then enters into the blind hole of the second plugging rod 13 through the second telescopic piece 8, the pushing force is applied to the movable rod 23 in the blind hole, so that the movable rod 23 moves towards the direction of the inner bottom of the blind hole, the unlocking of the positioning rod 20 is realized in the moving process of the movable rod 23, the first air hole 26 is communicated with the second air hole 27 through the first connecting hole 25, the second plugging rod 13 moves at the head of the first telescopic member 3 under the action of the moving rod 23, so that the second air hole 27 is communicated with the air exhaust hole 24, the air introduced into the first telescopic member 3 is exhausted, the first telescopic member 3 is retracted, and the temperature sensor is moved back to the initial position, so that the set temperature sensor can reciprocate within the preset range in the pipeline 1, and the temperature of the natural gas in the area is monitored.
In order to ensure that the first telescopic piece 3 can normally stretch, the management platform can send an adjusting instruction of the natural gas pressure in the pipeline 1 to the object platform through the sensing network platform, and adjust the pressure of the natural gas in the pipeline 1, namely when the first telescopic piece 3 is required to be expanded and stretched, the natural gas pressure in the pipeline 1 is adjusted, so that the pressure of the natural gas is larger than the elastic force of the fifth elastic piece 9, the pressure in the pipeline 1 easily enters the first telescopic piece 3, and the first telescopic piece 3 is forced to be in a stretched state; when the gas introduced into the first telescopic member 3 needs to be discharged, the natural gas pressure in the pipeline 1 is reduced, so that the gas pressure in the first telescopic member 3 is larger than that in the pipeline 1, and therefore, when the third air hole 28 on the first plugging rod 10 is communicated with the second telescopic member 8, under the action of the tension force of the fifth elastic member 9, the first telescopic member 3 is pulled to retract, the gas positioned in the first telescopic member 3 is forced to enter the second telescopic member 8 through the third air hole 28, and finally the movable rod 23 and the second plugging rod 13 are pushed to normally move, so that the purpose of effectively discharging the gas introduced into the first telescopic member 3 is achieved.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The natural gas pipe network metering working condition remote monitoring system based on the Internet of things comprises an object platform, a sensing network platform, a management platform, a service platform and a user platform which are sequentially interacted, and is characterized in that the object platform comprises a temperature sensor (2) and a pressure sensor which are arranged in a pipeline (1), and the temperature sensor (2) and the pressure sensor upload the monitored natural gas information to the management platform through the sensing network platform; the management platform monitors and pre-warns the acquired temperature and pressure information of the natural gas; the management platform receives user demand information through the service platform and the user platform, and issues a control instruction to the object platform through the sensor network platform; the inner wall of the pipeline (1) is also provided with a fixed rod (4), the fixed rod (4) is provided with a first telescopic piece (3), the first telescopic piece (3) can stretch and retract along the axial direction of the pipeline (1), the first telescopic piece (3) is also provided with a connector (6) along the direction end of the natural gas flow in the pipeline (1), and the temperature sensor (2) is fixed on the connector (6); the inside of the first telescopic piece (3) is also provided with a movable piece (5) and a fifth elastic piece (9), the movable piece (5) penetrates through two ends of the first telescopic piece (3) along the axial direction of the first telescopic piece (3), and the movable piece (5) can open or close the two ends of the first telescopic piece (3); both ends of the fifth elastic piece (9) are respectively connected with both ends of the inner part of the first telescopic piece (3); the movable piece (5) comprises a second telescopic piece (8), a first plugging rod (10) and a second plugging rod (13), wherein the first plugging rod (10) and the second plugging rod (13) are respectively positioned at two ends of the second telescopic piece (8), a through hole is formed in the connecting end of the first telescopic piece (3) and the connecting head (6), the second plugging rod (13) is positioned in the through hole, the first plugging rod (10) is connected with the other end of the first telescopic piece (3), and the second plugging rod (13) can move along the axial direction of the first telescopic piece (3); the end part of the second telescopic part (8) towards the direction of the second plugging rod (13) is provided with a sleeve (7), the sleeve (7) is fixedly connected with the second telescopic part (8), the sleeve (7) is sleeved on the second plugging rod (13), the end part of the second plugging rod (13) towards the direction of the second telescopic part (8) is provided with a blind hole communicated with the interior of the second telescopic part (8), the outer wall of the second plugging rod (13) is also provided with a first air hole (26) and a second air hole (27) communicated with the blind hole, and the interval between the second air hole (27) and the first air hole (26) is larger than the length of the through hole; an air passage which is communicated with two ends of the first plugging rod (10) is arranged in the first plugging rod (10), and the air passage is communicated with the second telescopic piece (8); a supporting rod is further arranged in the air passage of the first plugging rod (10), a driving mechanism (29) is arranged on the supporting rod, and a movable block (14) with the outer diameter matched with the inner diameter of the air passage is arranged on an output shaft (16) of the driving mechanism (29); a third air hole (28) and a fourth air hole (17) are further formed in the outer wall of the first plugging rod (10), the third air hole (28) is located in the first telescopic piece (3), the fourth air hole (17) is located outside the first telescopic piece (3), a U-shaped second connecting hole (15) is further formed in the side wall of the movable block (14), and the second connecting hole (15) can be used for communicating the third air hole (28) with the fourth air hole (17); the first telescopic piece (3) adopts a metal corrugated pipe.
2. The remote monitoring system for the metering working condition of the natural gas pipe network based on the Internet of things according to claim 1 is characterized in that a first groove is further formed in the inner wall of the through hole of the first telescopic piece (3), and a first elastic piece (19) and a positioning rod (20) are arranged in the first groove;
the outer wall of the second plugging rod (13) is also provided with a positioning hole, and the first elastic piece (19) can push the positioning rod (20) to be inserted into the positioning hole;
the blind hole of second shutoff pole (13) is interior still to be equipped with movable rod (23), be equipped with the second recess on the outer wall of movable rod (23), be equipped with second elastic component (22) and unlocking lever (18) in the second recess, the elasticity of second elastic component (22) is greater than the elasticity of first elastic component (19), still be equipped with the passageway that internal diameter and unlocking lever (18) external diameter are unanimous in second shutoff pole (13), passageway one end and locating hole intercommunication, the other end and blind hole intercommunication.
3. The remote monitoring system for the metering working condition of the natural gas pipe network based on the Internet of things according to claim 1, wherein a third elastic piece (21) is further arranged on the inner bottom of the blind hole of the second plugging rod (13), and the third elastic piece (21) is connected with a movable rod (23);
a fourth elastic piece (12) is further arranged on the second plugging rod (13), the fourth elastic piece (12) is sleeved on the second plugging rod (13), one end of the fourth elastic piece (12) is connected with the outer wall of the second plugging rod (13), and the other end of the fourth elastic piece is connected with the inner wall, close to the connector (6), of the first telescopic piece (3);
the side wall of the movable rod (23) is also provided with a U-shaped first connecting hole (25), and two ends of the first connecting hole (25) can be communicated with the first air hole (26) and the second air hole (27).
4. The remote monitoring system for the metering working condition of the natural gas pipe network based on the Internet of things according to claim 1 is characterized in that an exhaust hole (24) which can be communicated with a second air hole (27) is further formed in the side wall of the connector (6);
the connector (6) is provided with a containing groove (11) communicated with the through hole of the first telescopic piece (3), and the second plugging rod (13) can be inserted into the containing groove (11).
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