Gas metering device based on calorific value and using method thereof

Abstract

The invention relates to the technical field of gas metering, and discloses a calorific value-based gas metering device which comprises a fixed seat, mounting seats are fixedly connected to the front side and the rear side of the fixed seat, fixing mechanisms are arranged at the two ends of a gas pipe, a connecting pipe is fixedly connected to the middle of the top of the gas pipe, and the connecting pipe is fixedly connected into the fixed seat. A mounting mechanism is arranged at the top of the fixed seat, a meter is arranged at the top of the mounting mechanism, and a calorific value device is fixedly connected to the surface of the rear side of the meter. According to the fuel gas metering device based on the calorific value and the using method thereof, the bad phenomenon of leakage of the fuel gas pipe and the joint can be effectively prevented, once leakage occurs, serious interference can be inevitably generated on a fuel gas metering structure, large deviation and error of metering data are caused, and the metering accuracy is improved. And the accuracy of the gas metering data is greatly improved by the current perfect connecting and fixing mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of gas metering, and in particular to a gas metering device based on calorific value and a use method thereof. Background Art

[0002] As a widely used energy source, gas plays an important role in industrial production, commercial operations and residents' lives. Gas metering is a key link in determining gas usage. It is not only related to fair transactions between energy suppliers and users, but also has extremely important significance for energy management, cost control and safety monitoring. Accurate gas metering can ensure the rational allocation and utilization of energy, promote the healthy development of the energy market, and provide data support for environmental protection and sustainable development.

[0003] The patent network announcement number CN 215448088 U discloses a gas metering device based on calorific value, including a mounting seat, a gas pipe installed on the mounting seat, a connecting pipe installed on the gas pipe, a meter installed on the connecting pipe, and a calorifier installed on the mounting seat, the connecting pipe is connected to the gas pipe, and the calorifier is electrically connected to the meter; the mounting seat includes a lower mounting seat and an upper mounting seat hinged to the lower mounting seat, and the gas pipe is installed between the upper mounting seat and the lower mounting seat; by installing the gas pipe on the mounting seat, and then installing the mounting seat on a wall or a box, the gas pipe is supported, so that the connection between the gas pipe and the pipeline will not loosen, effectively protecting the stability of the installation of the gas pipe and the main pipeline, and ensuring the accuracy of the metering; at the same time, the calorifier can calculate the calorific value of the gas to achieve fair metering and billing.

[0004] The applicant believes that it has the following disadvantages: the gas metering device based on calorific value has obvious defects and deficiencies in actual operation. If it only relies on fastening components to fix the pipeline, the fixing effect it can achieve is far from meeting the actual needs, and it is difficult to ensure that the pipeline always maintains a stable and reliable connection state under various complex working conditions. In actual operation, it is often difficult to cope with the influence of many factors such as pipeline vibration, thermal expansion and contraction, and external stress impact by fastening components alone. These unfavorable factors are very likely to cause the pipeline connection to loosen, thereby destroying the integrity and stability of the entire gas transmission system; more importantly, after completing the operation of fixing the pipeline, this device obviously lacks a specific structure for effectively detecting the sealing of the connection between the pipeline and the gas pipe. This loophole undoubtedly brings great safety hazards and metering error risks. Due to the lack of a sealing detection mechanism, when a gas leak occurs at the connection between the pipeline and the gas pipe, the device cannot detect it in time and Even if an alarm is sounded, the operator will be completely unaware of it. The gas continues to leak silently, which will not only cause serious waste of energy, but also the leaked gas may accumulate in the surrounding environment. Once it encounters an open flame or other ignition source, it is very easy to cause catastrophic accidents such as explosions and fires, seriously threatening the safety of life and property of surrounding personnel and public safety. In addition, gas leakage will also have a direct and significant negative impact on the accuracy of gas metering. The normal operation of the gas metering device depends on a stable and leak-free gas transportation environment. Once a leak occurs, there will be a deviation between the actual amount of gas passing through the metering device and the theoretical value, resulting in inaccurate metering data. Inaccurate metering data will interfere with the fee settlement between energy suppliers and users, undermine the fairness and justice of market transactions, and is not conducive to the reasonable allocation and effective supervision of gas resources by energy management departments. In the long run, it may also have an adverse impact on the healthy development of the entire gas industry and hinder the advancement of related technology research and development and innovation. Summary of the invention

[0005] The object of the present invention is to provide a gas metering device based on calorific value and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas metering device based on calorific value, comprising a fixed seat, a mounting seat is fixedly connected to the front and rear sides of the fixed seat, a gas pipe is fixedly connected inside the fixed seat, fixing mechanisms are provided at both ends of the gas pipe, a connecting pipe is fixedly connected to the middle of the top of the gas pipe, the connecting pipe is fixedly connected in the fixed seat, a mounting mechanism is provided on the top of the fixed seat, a meter is provided on the top of the mounting mechanism, and a calorific value meter is fixedly connected to the rear surface of the meter.

[0007] The fixing mechanism includes a fixing ring, which is designed in a segmented manner. A vertical plate is fixedly connected to the left surface of the fixing ring, and a second fixing piece is fixedly connected to the right surface of the vertical plate. A placement groove is provided on the side of the second fixing piece facing away from the vertical plate, and a limiting rod is inserted in the placement groove. Second support pieces are fixedly connected to both sides of the limit rod surface, and the second support piece is fixedly connected to the right surface of the fixing ring. A first support piece is fixedly connected to the right surface of the fixing ring, and threaded holes are provided in the first support piece corresponding to the second fixing piece, and fixing bolts are threadedly connected in the threaded holes.

[0008] Preferably, a dual-axis motor is provided on the surface of the fixed ring, a detector is fixedly connected to the surface of the dual-axis motor, output shafts are fixedly connected on both sides of the dual-axis motor surface, a spur gear is fixedly connected to the surface of the output shaft, a tooth plate is meshed on the surface of the spur gear, and the tooth plate is fixedly connected in the fixed ring.

[0009] Preferably, the output shaft surface is rotatably connected to a limit piece, an arc strip is slidably connected inside the limit piece, a second fixing rod is fixedly connected to the side of the arc strip close to the dual-axis motor, mounting pieces are fixedly connected to both sides of the surface of the second fixing rod, the mounting pieces are fixedly connected to the surface of the fixing ring, a first fixing rod is fixedly connected to the side of the arc strip away from the second fixing rod, and a first fixing piece is fixedly connected to both sides of the surface of the first fixing rod.

[0010] Preferably, the bottom of the fixing ring is fixedly connected to a support seat, a support rod is rotatably connected inside the support seat, a first fixing piece is fixedly connected to the surface of the support seat, a connecting frame is fixedly connected to the surface of the support rod, and the connecting frame is fixedly connected to the surface of the gas pipe.

[0011] Preferably, the mounting mechanism comprises a mounting plate, the mounting plates are fixedly connected to the left and right sides of the meter, a placement seat is fixedly connected to the bottom of the mounting plate, and the placement seat is arranged on the top of the fixed seat.

[0012] Preferably, a limiting groove is provided in the placement seat, a limiting plate is inserted into the limiting groove, and the limiting plate is fixedly connected to the top of the fixing seat.

[0013] Preferably, a connecting plate is fixedly connected to the surface of the mounting plate, a circular groove is opened in the connecting plate, a placement rod is inserted in the circular groove, a support column is fixedly connected to the bottom of the placement rod, a placement piece is fixedly connected to the bottom of the support column, and the placement piece is fixedly connected to the surface of the connecting pipe.

[0014] Preferably, the surface of the placement rod is provided with threads, the surface of the placement rod is threadedly connected with a locking nut, and the locking nut is arranged on the top of the connecting plate.

[0015] Preferably, the mounting plate is designed to be rectangular, and the mounting plate extends upward to half the height of the meter.

[0016] Another technical problem to be solved by the present invention is to provide a method for using a gas metering device based on calorific value to solve the problems raised in the above background technology;

[0017] To achieve the above object, the present invention provides the following technical solution: The method for using the above calorific value gas metering device comprises the following steps:

[0018] S1. Installation of meter

[0019] Place the meter carefully at a specific position on the top of the connecting pipe. During this process, when the limit plate on the meter is accurately inserted into the limit groove carefully opened inside the placement seat, the limit rod working in conjunction with it can be synchronously and accurately inserted into the circular groove opened inside the connecting plate, forming a stable and reliable mechanical positioning structure. Then, by tightly screwing the locking nut to the surface of the placement rod in a standard threaded connection manner, the friction between the nut and the placement rod and the mechanical limit effect can be used to accurately and firmly position the meter, thereby successfully completing the installation of the meter.

[0020] S2. Connection between gas pipe and external gas delivery pipeline

[0021] The external gas transmission pipeline needs to be carefully sleeved on the surface of one of the specific gas pipes on both sides of the device. At this time, the pipeline is properly located in the internal space of the specially designed fixing ring, and then the pipeline closing operation process is carried out. During this closing process, the cleverly designed limit rod can accurately enter the placement groove carefully opened inside the second fixing member. At the same time, the threaded holes opened inside the second fixing member and the first support member are perfectly overlapped under the ingenious action of the mechanical structure. Subsequently, the fixing bolts are connected to the overlapping threaded holes in a precise threaded engagement manner with the help of tools. Through such a series of tightly coordinated and interlocking operating steps, the closing action of the fixing ring is successfully realized, thereby achieving a stable and reliable fixation effect on the external pipeline.

[0022] S3. Sealing test

[0023] After completing the connection and fixation of the pipeline, the dual-axis motor is further started. As a power source, the dual-axis motor has a strong and stable driving ability, and can efficiently drive the spur gears on both sides to rotate. Since there is a specific meshing transmission relationship between the spur gear and the matching gear ring, under the drive of the motor, the spur gear will produce corresponding displacement movement along the gear ring according to the meshing principle during the rotation process, and thereby drive the detector rigidly connected to it to move synchronously. During the movement, the detector can rely on its high-precision detection sensors and professional detection algorithms to perform all-round and meticulous detection of the connection between the pipeline and the gas pipe, once again ensuring the absolute sealing between the connection between the pipeline and the gas pipe from the detection level.

[0024] S4. Gas metering

[0025] The metering information obtained by the meter will be promptly transmitted to the calorimeter through a high-speed and stable data transmission line. As a key device for gas quality analysis, the calorimeter will use professional calorific value analysis models and algorithms to perform in-depth calorific value analysis operations based on the received calorific value information and metering information, thereby accurately obtaining the calorific value difference data. Based on these difference data, the calorific value meter can further adjust the calorific value benchmark according to the preset adjustment strategy and algorithm rules, so as to achieve the goal of accurate and fair measurement of gas for the entire gas metering system, meet the strict requirements for measurement accuracy and fairness in the process of gas supply and consumption, and ensure the scientificity and rationality of gas trade settlement and industrial production gas metering.

[0026] Compared with the prior art, the present invention provides a gas metering device based on calorific value and a method of using the same, which has the following beneficial effects:

[0027] 1. The gas metering device based on calorific value and its use method can effectively prevent the undesirable phenomenon of leakage in gas pipes and joints. Once leakage occurs, it will inevitably cause serious interference to the gas metering structure, resulting in large deviations and errors in the metering data. The current perfect connection and fixing mechanism greatly improves the accuracy of the gas metering data, ensuring that the metering data can truly and accurately reflect the actual flow and related parameters of the gas. At the same time, the detector can rely on its high-precision detection sensor and professional detection algorithm to perform all-round and meticulous detection of the pipeline and gas pipe connection, and once again ensure the sealing between the pipeline and the gas pipe connection from the detection level, providing double protection for the safe and stable operation of the entire gas transmission and metering system.

[0028] 2. The gas metering device based on calorific value and its use method can easily and conveniently disassemble the meter. By carefully designing the meter structure that is easy to install and disassemble, in actual use scenarios, once the meter is damaged or fails, relevant technicians can disassemble and repair it in a timely and efficient manner, thereby facilitating maintenance, reducing downtime, and improving the overall operating efficiency of the system.

[0029] 3. The gas metering device based on calorific value and its use method, the metering information obtained by the meter will be promptly transmitted to the calorific value meter through a high-speed and stable data transmission line. The calorific value meter, as a key equipment for gas quality analysis, will use professional calorific value analysis models and algorithms to perform in-depth calorific value analysis operations based on the received calorific value information and metering information, so as to accurately obtain the calorific value difference data. Based on these difference data, the calorific value meter can further adjust the calorific value benchmark according to the preset adjustment strategy and algorithm rules, so as to achieve the goal of accurate and fair measurement of gas by the entire gas metering system, meet the strict requirements for measurement accuracy and fairness in the process of gas supply and consumption, and ensure the scientificity and rationality of gas trade settlement and industrial production gas metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the fixing mechanism of the present invention;

[0034] Figure 4 It is a cross-sectional schematic diagram of the fixing mechanism of the present invention;

[0035] Figure 5 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0036] Figure 6 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0037] Figure 7 It is a schematic diagram of the installation mechanism of the present invention;

[0038] Figure 8 It is a schematic oblique view of the mounting mechanism of the present invention.

[0039] In the figure: 1. gas pipe; 2. fixing mechanism; 21. first fixing member; 22. connecting frame; 23. supporting seat; 24. supporting rod; 25. first fixing rod; 26. double-axis motor; 27. fixing ring; 28. tooth plate; 29. ​​second fixing member; 201. vertical plate; 202. limiting rod; 203. first supporting member; 204. second supporting member; 205. fixing bolt; 206. detector; 207. second fixing rod; 208. mounting member; 209. flat gear; 2011. limiting member; 2012. arc strip; 3. mounting mechanism; 31. supporting column; 32. mounting plate; 33. placing seat; 34. placing member; 35. placing rod; 36. connecting plate; 37. limiting plate; 4. meter; 5. mounting seat; 6. calorimeter; 7. fixing seat. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The present invention provides a technical solution:

[0042] Embodiment 1:

[0043] Combination Figure 1-2 to Figure 3-6 A gas metering device based on calorific value includes a fixed seat 7, a mounting seat 5 is fixedly connected to the front and rear sides of the fixed seat 7, a gas pipe 1 is fixedly connected inside the fixed seat 7, fixing mechanisms 2 are provided at both ends of the gas pipe 1, a connecting pipe is fixedly connected to the middle of the top of the gas pipe 1, the connecting pipe is fixedly connected to the fixed seat 7, a mounting mechanism 3 is provided on the top of the fixed seat 7, a meter 4 is provided on the top of the mounting mechanism 3, and a calorific value device 6 is fixedly connected to the rear surface of the meter 4.

[0044] The fixing mechanism 2 includes a fixing ring 27, which is designed in a segmented manner. A vertical plate 201 is fixedly connected to the surface of the left fixing ring 27, and a second fixing member 29 is fixedly connected to the right surface of the vertical plate 201. A placement groove is provided on the side of the second fixing member 29 away from the vertical plate 201, and a limiting rod 202 is inserted in the placement groove. Second support members 204 are fixedly connected to both sides of the surface of the limiting rod 202. The second support member 204 is fixedly connected to the surface of the right fixing ring 27, and a first support member 203 is fixedly connected to the surface of the right fixing ring 27. Threaded holes are provided in the first support member 203 corresponding to the second fixing member 29, and fixing bolts 205 are threadedly connected in the threaded holes.

[0045] Furthermore, a dual-axis motor 26 is provided on the surface of the fixed ring 27, a detector 206 is fixedly connected to the surface of the dual-axis motor 26, output shafts are fixedly connected on both sides of the surface of the dual-axis motor 26, a spur gear 209 is fixedly connected to the surface of the output shaft, a tooth plate 28 is meshed on the surface of the spur gear 209, and the tooth plate 28 is fixedly connected in the fixed ring 27.

[0046] Furthermore, the output shaft surface is rotationally connected to a limit piece 2011, and an arc strip 2012 is slidably connected inside the limit piece 2011. The arc strip 2012 is fixedly connected to a second fixed rod 207 on a side close to the dual-axis motor 26, and mounting pieces 208 are fixedly connected to both sides of the surface of the second fixed rod 207. The mounting pieces 208 are fixedly connected to the surface of the fixing ring 27, and the arc strip 2012 is fixedly connected to a first fixed rod 25 on a side away from the second fixed rod 207, and the first fixed pieces 21 are fixedly connected to both sides of the surface of the first fixed rod 25.

[0047] Furthermore, a support seat 23 is fixedly connected to the bottom of the fixing ring 27, a support rod 24 is rotatably connected inside the support seat 23, a first fixing member 21 is fixedly connected to the surface of the support seat 23, a connecting frame 22 is fixedly connected to the surface of the support rod 24, and the connecting frame 22 is fixedly connected to the surface of the gas pipe 1. The current perfect connection and fixing mechanism greatly improves the accuracy of the gas metering data, ensuring that the metering data can truly and accurately reflect the actual flow and related parameters of the gas. At the same time, the detector 206 can rely on its high-precision detection sensors and professional detection algorithms to perform all-round and meticulous detection of the connection between the pipeline and the gas pipe 1, and once again ensure the sealing between the pipeline and the gas pipe 1 from the detection level, providing double protection for the safe and stable operation of the entire gas transportation and metering system.

[0048] Embodiment 2:

[0049] See also Figure 7-8On the basis of the first embodiment, the mounting mechanism 3 further comprises a mounting plate 32, the mounting plates 32 are fixedly connected to the left and right sides of the meter 4, a placement seat 33 is fixedly connected to the bottom of the mounting plate 32, the placement seat 33 is arranged on the top of the fixed seat 7, a limiting groove is provided in the placement seat 33, a limiting plate 37 is inserted in the limiting groove, and the limiting plate 37 is fixedly connected to the top of the fixed seat 7.

[0050] Furthermore, a connecting plate 36 is fixedly connected to the surface of the mounting plate 32, a circular groove is opened in the connecting plate 36, a placement rod 35 is inserted in the circular groove, a support column 31 is fixedly connected to the bottom of the placement rod 35, a placement piece 34 is fixedly connected to the surface of the connecting pipe, a thread is provided on the surface of the placement rod 35, a locking nut is threadedly connected to the surface of the placement rod 35, and the locking nut is provided on the top of the connecting plate 36. The mounting plate 32 is designed to be rectangular, and the mounting plate 32 extends upward to half the height of the meter 4, so that the meter 4 can be easily and conveniently disassembled. By carefully designing the structure of the meter 4 that is easy to install and disassemble, in actual use scenarios, once the meter 4 is damaged or malfunctions, the relevant technical personnel can disassemble and repair it in a timely and efficient manner, thereby achieving the purpose of facilitating maintenance, reducing downtime, and improving the overall operation efficiency of the system.

[0051] Another technical problem to be solved by the present invention is to provide a method for using a gas metering device based on calorific value, and the method for using the gas metering device based on calorific value comprises the following steps:

[0052] S1. Installation of meter

[0053] The meter 4 is carefully placed at a specific position on the top of the connecting pipe. During this process, when the limit plate 37 on the meter 4 is accurately inserted into the limit groove carefully opened inside the placement seat 33, the limit rod 202 working in conjunction with it can be synchronously and accurately inserted into the circular groove opened inside the connecting plate 36, forming a stable and reliable mechanical positioning structure. Then, by tightly screwing the locking nut to the surface of the placement rod 35 in a standard threaded connection manner, the friction between the nut and the placement rod 35 and the mechanical limit effect can be used to accurately and firmly position the meter 4, thereby successfully completing the installation operation of the meter 4.

[0054] S2. Connection between gas pipe and external gas delivery pipeline

[0055] The external gas delivery pipeline needs to be carefully sleeved on the surface of the gas pipe 1 on one of the specific sides of the device. At this time, the pipeline is properly located in the internal space of the specially designed fixing ring 27, and then the pipeline closing operation process is carried out. In this closing process, the cleverly designed limit rod 202 can accurately enter the placement groove carefully opened inside the second fixing member 29. At the same time, the threaded holes opened inside the second fixing member 29 and the first support member 203 are perfectly overlapped under the clever action of the mechanical structure. Subsequently, the fixing bolt 205 is connected to the overlapping threaded hole in a precise threaded screwing manner with the help of a tool. Through such a series of tightly matched and interlocking operating steps, the closing action of the fixing ring 27 is successfully realized, thereby achieving a stable and reliable fixing effect on the external pipeline.

[0056] S3. Sealing test

[0057] After completing the connection and fixation of the pipeline, the dual-axis motor 26 is further started. As a power source, the dual-axis motor 26 has a strong and stable driving ability, and can efficiently drive the flat gears 209 on both sides to rotate. Since there is a specific meshing transmission relationship between the flat gear 209 and the matching gear ring, under the drive of the motor, the flat gear 209 will produce corresponding displacement movement along the gear ring according to the meshing principle during the rotation process, and thereby drive the detector 206 rigidly connected to it to move synchronously. During the movement, the detector 206 can rely on its high-precision detection sensors and professional detection algorithms to perform all-round and meticulous detection of the connection between the pipeline and the gas pipe 1, and once again ensure the absolute sealing between the connection between the pipeline and the gas pipe 1 from the detection level.

[0058] S4. Gas metering

[0059] The metering information obtained by the meter 4 will be promptly transmitted to the calorific value device 6 through a high-speed and stable data transmission line. As a key device for gas quality analysis, the calorific value device 6 will use professional calorific value analysis models and algorithms to perform in-depth calorific value analysis operations based on the received calorific value information and metering information, so as to accurately obtain the calorific value difference data. Based on these difference data, the calorific value device 6 can further adjust the calorific value benchmark according to the preset adjustment strategy and algorithm rules, so as to achieve the goal of accurate and fair measurement of gas by the entire gas metering system, meet the strict requirements for measurement accuracy and fairness in the process of gas supply and consumption, and ensure the scientificity and rationality of gas trade settlement and industrial production gas metering.

[0060] In the actual operation process, when the device is used, first of all, in the overall construction and operation system of the gas metering device, the mounting base 5 plays an extremely critical basic fixing role. Through a rigorous and precise operation process, the mounting base 5 is used to firmly and stably place the gas metering device on the corresponding position planned in advance, thereby laying a solid foundation for a series of subsequent operations;

[0061] When it comes to the connection of the external gas pipe 1, the external gas delivery pipe needs to be carefully sleeved on the surface of the gas pipe 1 on one of the specific sides of the device. At this time, the pipe is properly located in the internal space of the specially designed fixing ring 27, and then the closing operation process of the pipe is carried out. During this closing process, the cleverly designed limit rod 202 can accurately enter the placement groove carefully opened inside the second fixing member 29. At the same time, the threaded holes opened inside the second fixing member 29 and the first supporting member 203 are perfectly overlapped under the clever action of the mechanical structure. Subsequently, the fixing bolt 205 is precisely tightened with the help of a tool. The threaded screwing method is connected to the overlapping threaded hole. Through such a series of tightly matched and interlocking operation steps, the closing action of the fixing ring 27 is successfully achieved, thereby achieving a stable and reliable fixing effect on the external pipeline. In this way, the unfavorable phenomenon of leakage in the gas pipe 1 and the connection can be effectively prevented. Once a leakage occurs, it will inevitably cause serious interference to the gas metering structure, resulting in large deviations and errors in the metering data. The current perfect connection and fixing mechanism greatly improves the accuracy of the gas metering data, ensuring that the metering data can truly and accurately reflect the actual flow and related parameters of the gas;

[0062] After the pipeline connection and fixation are completed, the dual-axis motor 26 is further started. As a power source, the dual-axis motor 26 has a strong and stable driving ability, and can efficiently drive the flat gears 209 on both sides to rotate. Since there is a specific meshing transmission relationship between the flat gear 209 and the matching gear ring, under the drive of the motor, the flat gear 209 will produce corresponding displacement movement along the gear ring according to the meshing principle during the rotation process, and thereby drive the detector 206 rigidly connected to it to move synchronously. During the movement process, the detector 206 can rely on its high-precision detection sensor and professional detection algorithm to perform all-round and meticulous detection of the connection between the pipeline and the gas pipe 1, and once again ensure the sealing between the connection between the pipeline and the gas pipe 1 from the detection level, providing double protection for the safe and stable operation of the entire gas transportation and metering system;

[0063] When facing the task of installing the meter 4, the operation process is also rigorous and orderly. First, the meter 4 is carefully placed at the specific position on the top of the connecting pipe. During this process, when the limit plate 37 on the meter 4 is accurately inserted into the limit groove carefully opened inside the placement seat 33, the limit rod 202 working in conjunction with it can be synchronously and accurately inserted into the circular groove opened inside the connecting plate 36 to form a stable and reliable mechanical positioning structure. Then, the locking nut is tightly screwed onto the surface of the placement rod 35 in a standard threaded connection manner, and the nut and the placement rod 35 are used to secure the connection. The friction between the two parts and the mechanical limit function can accurately and firmly position the meter 4, thereby successfully completing the installation of the meter 4. Based on the above installation principle, the meter 4 can be easily and conveniently disassembled in accordance with the reverse logical order and operation steps. By carefully designing the structure of the meter 4 that is easy to install and disassemble, in actual use scenarios, once the meter 4 is damaged or fails, the relevant technicians can disassemble and repair it in a timely and efficient manner, thereby achieving the purpose of facilitating maintenance, reducing downtime, and improving the overall operation efficiency of the system;

[0064] In the core link of gas metering, when the gas flows stably inside the gas pipe 1 and the connecting pipe, the meter 4 can accurately measure the mass or volume of the gas passing through the gas pipe 1 by virtue of its advanced sensing technology and precise metering algorithm, and display the metering results in an intuitive and clear manner, so as to facilitate the operator to read and monitor in real time. At the same time, the metering information obtained by the meter 4 will be promptly transmitted to the calorific value device 6 through a high-speed and stable data transmission line. As a key device for gas quality analysis, the calorific value device 6 will use professional calorific value analysis models and algorithms to perform in-depth calorific value analysis operations based on the received calorific value information and metering information, so as to accurately obtain the calorific value difference data. Based on these difference data, the calorific value device 6 can further adjust the calorific value benchmark according to the preset adjustment strategy and algorithm rules, so as to achieve the goal of accurate and fair metering of the gas by the entire gas metering system, meet the strict requirements for metering accuracy and fairness in the process of gas supply and consumption, and ensure the scientificity and rationality of gas trade settlement and industrial production gas metering.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A gas metering device based on calorific value, comprising a fixing seat (7), characterized in that: The front and rear sides of the fixing seat (7) are both fixedly connected to mounting seats (5), a gas pipe (1) is fixedly connected inside the fixing seat (7), both ends of the gas pipe (1) are provided with fixing mechanisms (2), a connecting pipe is fixedly connected to the middle of the top of the gas pipe (1), the connecting pipe is fixedly connected to the fixing seat (7), a mounting mechanism (3) is provided on the top of the fixing seat (7), a meter (4) is provided on the top of the mounting mechanism (3), and a calorific value device (6) is fixedly connected to the rear surface of the meter (4); The fixing mechanism (2) comprises a fixing ring (27), the fixing ring (27) is designed in sections, a vertical plate (201) is fixedly connected to the surface of the left fixing ring (27), a second fixing member (29) is fixedly connected to the surface of the right side of the vertical plate (201), a placement groove is provided on the side of the second fixing member (29) away from the vertical plate (201), a limiting rod (202) is inserted in the placement groove, second supporting members (204) are fixedly connected to both sides of the surface of the limiting rod (202), the second supporting member (204) is fixedly connected to the surface of the right fixing ring (27), a first supporting member (203) is fixedly connected to the surface of the right fixing ring (27), a threaded hole is provided in the first supporting member (203) corresponding to the second fixing member (29), and a fixing bolt (205) is threadedly connected in the threaded hole.

2. A gas metering device based on calorific value according to claim 1, characterized in that: A dual-axis motor (26) is provided on the surface of the fixed ring (27), a detector (206) is fixedly connected to the surface of the dual-axis motor (26), output shafts are fixedly connected to both sides of the surface of the dual-axis motor (26), a spur gear (209) is fixedly connected to the surface of the output shaft, a toothed plate (28) is meshed on the surface of the spur gear (209), and the toothed plate (28) is fixedly connected inside the fixed ring (27).

3. A gas metering device based on calorific value according to claim 2, characterized in that: The output shaft surface is rotatably connected to a limit piece (2011), and an arc strip (2012) is slidably connected inside the limit piece (2011); a second fixed rod (207) is fixedly connected to the side of the arc strip (2012) close to the dual-axis motor (26); mounting pieces (208) are fixedly connected to the surface of the second fixed rod (207); the mounting pieces (208) are fixedly connected to the surface of a fixed ring (27); a first fixed rod (25) is fixedly connected to the side of the arc strip (2012) away from the second fixed rod (207); and a first fixed piece (21) is fixedly connected to the surface of the first fixed rod (25).

4. A gas metering device based on calorific value according to claim 1, characterized in that: The bottom of the fixing ring (27) is fixedly connected to a support seat (23), a support rod (24) is rotatably connected inside the support seat (23), a first fixing member (21) is fixedly connected to the surface of the support seat (23), a connecting frame (22) is fixedly connected to the surface of the support rod (24), and the connecting frame (22) is fixedly connected to the surface of the gas pipe (1).

5. A gas metering device based on calorific value according to claim 1, characterized in that: The mounting mechanism (3) comprises a mounting plate (32), wherein the mounting plates (32) are fixedly connected to the left and right sides of the meter (4), and a placement seat (33) is fixedly connected to the bottom of the mounting plate (32), and the placement seat (33) is arranged on the top of the fixing seat (7).

6. A gas metering device based on calorific value according to claim 5, characterized in that: A limiting groove is provided in the placement seat (33), a limiting plate (37) is inserted into the limiting groove, and the limiting plate (37) is fixedly connected to the top of the fixing seat (7).

7. A gas metering device based on calorific value according to claim 5, characterized in that: The surface of the mounting plate (32) is fixedly connected to a connecting plate (36), a circular groove is formed in the connecting plate (36), a placement rod (35) is inserted in the circular groove, the bottom of the placement rod (35) is fixedly connected to a support column (31), the bottom of the support column (31) is fixedly connected to a placement piece (34), and the placement piece (34) is fixedly connected to the surface of the connecting pipe.

8. A gas metering device based on calorific value according to claim 7, characterized in that: The surface of the placement rod (35) is provided with threads, and the surface of the placement rod (35) is threadedly connected with a locking nut, and the locking nut is arranged on the top of the connecting plate (36).

9. A gas metering device based on calorific value according to claim 5, characterized in that: The mounting plate (32) is designed in a rectangular shape and extends upward to half the height of the meter (4).

10. The method for using the gas metering device based on calorific value according to claim 1, characterized in that: The method for using the calorific value gas metering device comprises the following steps: S1. Installation of meter The meter (4) is carefully placed at a specific position on the top of the connecting pipe. During this process, when the limit plate (37) on the meter (4) is accurately inserted into the limit groove carefully opened inside the placement seat (33), the limit rod (202) working in conjunction with it can be synchronously and accurately inserted into the circular groove opened inside the connecting plate (36), forming a stable and reliable mechanical positioning structure. Then, by tightly screwing the locking nut onto the surface of the placement rod (35) in a standard threaded connection manner, the friction between the nut and the placement rod (35) and the mechanical limit effect can be used to accurately and firmly position the meter (4), thereby successfully completing the installation of the meter (4); S2. Connection between gas pipe and external gas delivery pipeline The external gas delivery pipeline needs to be carefully sleeved on the surface of one of the specific gas pipes (1) on both sides of the device. At this time, the pipeline is properly located in the internal space of the specially designed fixing ring (27). Then, the pipeline closing operation process is carried out. During this closing process, the cleverly designed limit rod (202) can accurately enter the placement groove carefully opened inside the second fixing member (29). At the same time, the threaded holes opened inside the second fixing member (29) and the first supporting member (203) are perfectly overlapped under the clever action of the mechanical structure. Subsequently, the fixing bolts (205) are connected to the overlapping threaded holes in a precise threaded engagement manner with the help of tools. Through such a series of tightly matched and interlocking operation steps, the closing action of the fixing ring (27) is successfully achieved, thereby achieving a stable and reliable fixing effect on the external pipeline. S3. Sealing test After the pipeline is connected and fixed, the double-axis motor (26) is further started. As a power source, the double-axis motor (26) has a strong and stable driving ability and can efficiently drive the flat gears (209) on both sides to rotate. Since there is a specific meshing transmission relationship between the flat gear (209) and the matching gear ring, under the drive of the motor, the flat gear (209) will generate corresponding displacement movement along the gear ring according to the meshing principle during the rotation process, and thereby drive the detector (206) rigidly connected thereto to move synchronously. During the movement process, the detector (206) can rely on its high-precision detection sensor and professional detection algorithm to perform all-round and meticulous detection work on the connection between the pipeline and the gas pipe (1), and once again ensure the perfect sealing between the connection between the pipeline and the gas pipe (1) from the detection level; S4. Gas metering The metering information obtained by the meter (4) will be promptly transmitted to the calorific value meter (6) through a high-speed and stable data transmission line. As a key device for gas quality analysis, the calorific value meter (6) will use a professional calorific value analysis model and algorithm to perform in-depth calorific value analysis operations based on the received calorific value information and metering information, thereby accurately obtaining calorific value difference data. Based on these difference data, the calorific value meter (6) can further adjust the calorific value benchmark according to the preset adjustment strategy and algorithm rules, so as to achieve the goal of accurate and fair measurement of gas by the entire gas metering system, meet the strict requirements for measurement accuracy and fairness in the process of gas supply and consumption, and ensure the scientificity and rationality of gas trade settlement and industrial production gas metering.

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