CN114414100A

CN114414100A - Synchronous operation type natural gas energy metering device and Internet of things system

Info

Publication number: CN114414100A
Application number: CN202210060186.4A
Authority: CN
Inventors: 邵泽华; 李勇; 权亚强; 向海堂; 魏小军
Original assignee: Chengdu Qinchuan IoT Technology Co Ltd
Current assignee: Chengdu Qinchuan IoT Technology Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-29

Abstract

The invention discloses a synchronous operation type natural gas energy metering device which comprises a management platform and a shell, wherein a data preprocessing module and an energy calculating module are arranged in the shell, and the data preprocessing module is used for carrying out data classification and storage on perception information of natural gas and transmitting the perception information to the energy calculating module; the energy calculation module calculates standard condition flow in a set time period through the sensing information transmitted by the data preprocessing module, matches natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and realizes natural gas energy measurement through the product of the natural gas unit heating value and the standard condition flow; the data preprocessing module can transmit the processed information to the management platform, and the management platform realizes remote energy metering accounting. The invention realizes the integrated design of the natural gas energy metering device, and has good parameter matching of each functional module and more accurate metering.

Description

Synchronous operation type natural gas energy metering device and Internet of things system

Technical Field

The invention relates to the technical field of natural gas energy metering, in particular to a synchronous operation type natural gas energy metering device and an internet of things system.

Background

Natural gas is taken as a high-quality, high-efficiency and clean energy source and an important chemical raw material, is generally regarded and preferentially utilized in all countries of the world, and accounts for 35 percent in an energy structure. With the continuous rise of natural gas as an environment-friendly energy source, the accurate, fair and fair measurement of natural gas is an important technical task for scientific management of natural gas, and is related to multi-interest. Meanwhile, natural gas is used as fuel, the actual value of the natural gas is the heat value rather than the volume of the natural gas, and the foreign natural gas metering mode generally adopts an energy metering method, so that unnecessary disputes are inevitable in the natural gas trade handover process with other countries, and therefore, the research on natural gas energy metering equipment is of great significance.

The existing natural gas gathering and transportation station is provided with metering equipment, but the traditional metering equipment has low metering response speed and poor metering accuracy.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a synchronous operation type natural gas energy metering device, so that the integrated design of the natural gas energy metering device is realized, the parameter matching performance of each functional module is good, and the metering is more accurate.

The invention is realized by the following technical scheme: the natural gas monitoring system comprises a management platform and a shell, wherein a data preprocessing module and an energy calculation module are arranged in the shell, and the data preprocessing module is used for carrying out data classification and storage on sensing information of natural gas and transmitting the sensing information to the energy calculation module; the energy calculation module calculates the standard condition flow in a set time period through the sensing information transmitted by the data preprocessing module, matches the natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and realizes natural gas energy measurement through the product of the natural gas unit heating value and the standard condition flow; the data preprocessing module can transmit the processed information to the management platform, and the management platform realizes remote energy metering accounting.

The natural gas monitoring system further comprises a flow sensor, a pressure sensor and a temperature sensor which are arranged in the shell, wherein the flow sensor, the pressure sensor and the temperature sensor are used for collecting sensing information of natural gas and transmitting the collected sensing information to the data preprocessing module; the touch display screen is respectively connected with the data preprocessing module and the energy calculating module, and the communication module is respectively electrically connected with the energy calculating module and the data preprocessing module to realize bidirectional communication; the data preprocessing module is also used for transmitting the acquired sensing information of the natural gas to the communication module, and the communication module is used for realizing external information interaction.

The output end of the calorific value analysis processing module is connected with the data preprocessing module, the input end of the calorific value analysis processing module is provided with a sample gas processing system and a standard gas processing system, the calorific value analysis processing module is used for calculating the calorific value of the standard gas after impurity removal of the standard gas processing system, and the calculation result is compared with the standard value of the calorific value of the standard gas, so that the calibration of the calorific value analysis processing module is realized; the calorific value analysis processing module is used for calculating the calorific value of the sample gas subjected to impurity removal by the sample gas processing system and transmitting the calculated calorific value information of the natural gas unit corresponding to the standard condition flow to the data preprocessing module;

the input of sample gas processing system still is equipped with sample gas controller, sample gas controller's input still is equipped with sample gas and gathers the interface, standard gas processing system's input still is equipped with standard gas and gathers the interface. Furthermore, the sample gas collecting interface also comprises a sampling pipe which is arranged in the shell and is communicated with the gas pipe, the outer wall of the sampling pipe is also provided with an air pump which is communicated with the sampling pipe, a first telescopic piece is arranged in the sampling pipe, and the movable end of the first telescopic piece is provided with an impurity removing element which is used for discharging fluid in the sampling pipe; still including setting up the third extensible member in the casing, the expansion end of third extensible member is equipped with the shutoff board that is used for the gas pipe shutoff, still be equipped with in the gas pipe and be used for the locating part fixed to the shutoff board, when the edulcoration component stretches into in the gas pipe, the locating part can remove fixedly to the shutoff board.

When natural gas in a gas pipe is measured by a natural gas energy metering device in the prior art, because a traditional sample gas collecting interface adopts a mode of connecting a sampling pipe and the gas pipe, when the natural gas in the gas pipe needs to be collected, a suction force is generated in the sampling pipe by an arranged air pump, the natural gas in the gas pipe is sucked into the sampling pipe for analyzing subsequent energy, but when the natural gas in different periods is sampled, a part of the sample gas collected in the previous period always remains in the sampling pipe, so that when the natural gas in the gas pipe is collected in the later period, the natural gas collected in the two periods is mixed together, and the energy value of the measured natural gas in the period has an error, therefore, the technical scheme is provided with a first telescopic piece and an impurity removing element in the existing sampling pipe, when the first telescopic piece moves along the axial direction of the sampling pipe in the sampling pipe, can drive the edulcoration component and remove in the sampling pipe to with the natural gas that the last period of time was gathered and is remained in the sampling pipe discharge to the gas pipe in, thereby realized the purpose to the edulcoration in the sampling pipe, guaranteed like this that the period is gathered the natural gas in the sampling pipe and can not have the remaining natural gas of the last period, thereby guaranteed that the period measures the energy value of natural gas more accurate.

Meanwhile, when natural gas in the gas pipe is actually collected, the natural gas in the gas pipe is in a flowing state, when the flow rate of the natural gas in the gas pipe is high, the span of the collected natural gas around a certain period of time is large, and the reasonable energy value of the gas pipe in the period of time cannot be accurately reflected, therefore, a plugging plate for plugging the gas pipe is further arranged in the shell, after the natural gas in the sampling pipe in the last period of time is discharged into the gas pipe by using the arranged impurity removing element, the impurity removing element extends into the gas pipe, the impurity removing element can remove the restraint of the limiting part on the plugging plate, so that the plugging plate can be driven to be inserted into the gas pipe under the action of the third telescopic part, the gas pipe is plugged, and the natural gas in the gas pipe at the moment stops flowing under the action of the plugging plate, consequently, follow-up in-process gathering the natural gas in the gas pipe, the span is not big around the natural gas that can guarantee to gather to guaranteed that the natural gas that this period of time was gathered is in reasonable within range, avoided because of the natural gas that the gas pipe is circulating and the natural gas interval that leads to gathering is great around leading to, finally lead to the natural gas energy value that this period of time measured not accurate enough.

Furthermore, a fixing rod is arranged in the sampling pipe, one end of the fixing rod extends into the first telescopic piece, and the other end of the fixing rod can extend into the gas pipe; the impurity removing element comprises a first movable block and a second movable block, the outer diameter of the first movable block is matched with the inner diameter of the sampling pipe, the first movable block and the second movable block are sleeved on the fixed rod, and the movable end of the first telescopic piece is connected with the first movable block; the fixed rod is further provided with an exhaust hole for discharging fluid in the sampling pipe, and when the first movable block moves towards the second movable block, the exhaust hole can be opened.

The technical scheme is that a first movable block and a second movable block are arranged in an existing sampling pipe, the first movable block and the second movable block can move in the sampling pipe along the axial direction of the sampling pipe, a fixed rod which is respectively connected with the first movable block and the second movable block in a sliding mode is further arranged in the sampling pipe, an exhaust hole for exhausting fluid in the sampling pipe is further formed in the fixed rod, when natural gas in the gas pipe in the period needs to be collected, the first movable block moves towards the second movable block, the outer diameter of the first movable block is consistent with the inner diameter of the sampling pipe, so that the natural gas remained in the sampling pipe in the last period can be compressed in the moving process of the first movable block, meanwhile, the exhaust hole on the fixed rod is in an open state, and when the natural gas remained in the sampling pipe is compressed by the first movable block, the first movable block can be quickly exhausted into the gas pipe from the exhaust hole, thereby realized will last period in to the natural gas acquisition process, remain the purpose that the natural gas discharged in the sampling pipe.

When the natural gas in the gas pipe is collected, the fixed rod can move along the axial direction of the sampling pipe, so that the first movable block and the second movable block are drawn together, the natural gas remained in the sampling pipe is completely discharged, the first movable block and the second movable block which are positioned in the fixed rod and drawn together are stretched into the gas pipe by the fixed rod, then the first movable block is firstly returned into the sampling pipe, the natural gas in the period of time in the gas pipe can be sucked into the sampling pipe by the generated negative pressure in the process of returning the first movable block into the sampling pipe, the rapid collection of the natural gas in the period of time is realized, meanwhile, after the collection of the natural gas in the period of time is finished, the second movable block is also returned into the sampling pipe, the pipe opening of the sampling pipe is blocked, and the natural gas in different periods of time can be accurately collected in the sampling pipe, therefore, the energy value of the natural gas measured in each time interval is more accurate.

Furthermore, a second telescopic piece is also arranged in the first telescopic piece, one end of the second telescopic piece is connected with the inner top surface of the first telescopic piece, and the other end of the second telescopic piece is connected with the fixed rod; the first extensible member, the second extensible member and the third extensible member are corrugated pipes, the first extensible member is communicated with the third extensible member through a connecting pipe, and the first extensible member and the second extensible member are connected with the pump body through air pipes respectively.

The first telescopic piece is used for driving the first movable block to normally move in the sampling pipe.

The first telescopic piece, the second telescopic piece and the third telescopic piece are all corrugated pipes which are connected with a pump body arranged in the shell through air pipes, the first telescopic piece and the second telescopic piece are filled with gas by using the arranged pump body, and the corrugated pipes can expand and stretch along the axial direction after being inflated, so that the positions of the first movable block and the fixed rod in the sampling pipe can be respectively adjusted by using the arranged first telescopic piece and the second telescopic piece; meanwhile, because the connecting pipe is adopted to communicate the first telescopic part with the third telescopic part, when the air is supplied to the first telescopic part in the initial state, the plugging plate is in a locking state, therefore, the gas entering the first telescopic part can preferentially force the first telescopic part to collide in the sampling pipe, drive the first movable block to move in the sampling pipe, discharge the residual natural gas in the last period, when the fixed rod, the first movable block and the second movable block are extended into the gas pipe together, the restriction of the limiting piece on the plugging plate is removed, so that the gas filled into the first telescopic part enters the third telescopic part through the connecting pipe, the third telescopic part is forced to collide and stretch along the axial direction of the third telescopic part, the plugging plate is pushed into the gas pipe, and the gas pipe is plugged, the natural gas in the gas pipe is blocked, so that the large span of the collected natural gas in the period is ensured.

Furthermore, a channel is also arranged in the fixed rod, one end of the channel is communicated with the exhaust hole, and the other end of the channel is communicated with the side wall of the fixed rod; be equipped with the connecting hole that internal diameter and dead lever external diameter match on the second movable block, the dead lever inserts to the connecting hole in, be equipped with the first chamber that holds on the inner wall of connecting hole, the first intracavity that holds is equipped with first elastic component and shutoff piece, the elasticity that first elastic component produced can promote the shutoff piece and insert to the passageway in to carry out the shutoff to the passageway.

In order to guarantee when the first movable block of first extensible member drive in-process moving towards the second movable block direction, the exhaust hole that is close to in the dead lever lower extreme can be opened, still guarantee simultaneously that first movable block is in the in-process moving towards keeping away from the second movable block direction, the exhaust hole is in the shutoff state, so be provided with the passageway of "T" word structure in the dead lever, the upper end and the exhaust hole of passageway are in the feed through state, and the other both ends of passageway communicate with the both sides of dead lever respectively, when the shutoff piece on the second movable block connecting hole inner wall is in the level with the passageway, under the effect of first elastic component, promote the shutoff piece and insert to the passageway in, carry out the shutoff to the passageway, thereby realized the shutoff to the exhaust hole.

When the first movable block moves towards the second movable block, the first movable block compresses natural gas remained in the sampling pipe to force the natural gas to enter the channel through the exhaust hole and act on the blocking block in the channel, the pressure generated in the moving process of the first movable block is gradually increased, when the pressure is greater than the elastic force of the first elastic part, the blocking block is forced to compress the first elastic part and retract into the first accommodating cavity, the fixing rod removes the constraint force of the blocking block on the first elastic part, the second telescopic part is a corrugated pipe, when the first movable block moves in the sampling pipe, the air pressure generated by the compressed natural gas can force the fixing rod to actively move towards the gas pipe, the channel on the fixing rod is staggered with the first accommodating cavity, and finally the channels on the two sides of the fixing rod extend into the gas pipe, so that the gas pipe is communicated with the exhaust hole, and then make the natural gas that remains in the sampling pipe can finally loop through in exhaust hole, the passageway enters into the gas pipe, will last period sampling remain the gas outgoing in the sampling pipe.

And when first movable block and second movable block draw close together, under the effect of first movable block, carry out the shutoff to the exhaust hole, at this moment, under the effect of second extensible member, can stimulate the dead lever and contract toward retrieving, when the passageway on the dead lever retracts again and when neat with the shutoff piece, under the effect of first elastic component, with the shutoff piece reinsert to the passageway in, fix the second movable block on the dead lever again, guaranteed that the exhaust hole is in the encapsulated situation.

Further, the limiting piece comprises a locking piece and an L-shaped connecting plate; the gas pipe is a square pipe, a guide hole and a strip-shaped port matched with the plugging plate are formed in the gas pipe, the strip-shaped port and the guide hole are communicated with the inside of the gas pipe, the plugging plate can be inserted into the gas pipe through the strip-shaped port and plugs the gas pipe, and a limiting hole is further formed in the side wall of the plugging plate; connecting plate one end and dead lever are towards the end connection of gas pipe direction, and the other end can insert in the guiding hole, be equipped with the spacing chamber with the guiding hole intercommunication on the bar mouth inner wall, the retaining member is located spacing intracavity, and when the connecting plate inserted in the guiding hole, the connecting plate can promote the retaining member and insert to spacing downthehole on the shutoff board.

In an initial state, when a set fixing rod does not extend into the gas pipe, the set L-shaped connecting plate is inserted into the guide hole, the locking piece positioned in the limiting cavity is forced to be inserted into the limiting hole on the plugging plate, and the plugging plate is fixed; and stretch into the dead lever to the intraductal back of gas, the connecting plate that sets up follows the dead lever to remove together for the connecting plate shifts out from spacing downthehole, has removed the constraining force to the closure plate, makes the third extensible member can promote the closure plate and insert to the gas pipe, carries out the shutoff to the gas pipe.

Furthermore, the locking member comprises a first limiting block, a second limiting block and a fourth elastic member, the first limiting block, the second limiting block and the fourth elastic member are all located in the limiting cavity, two ends of the fourth elastic member are respectively connected with the first limiting block and the second limiting block, and the second limiting block can be inserted into the limiting hole; the first limiting block is provided with a bevel edge towards the square end of the guide hole.

Specifically, at the initial state, the connecting plate is inserted into the guide hole to generate extrusion force on the first limiting block, so that the first limiting block is forced to compress the fourth elastic piece and push the second limiting block to be inserted into the limiting hole of the plugging plate, and the plugging plate is fixed; when the connecting plate moves along with the fixed rod and moves out of the guide hole, the first limiting block can be pushed to move into the guide hole from the limiting cavity under the action of the fourth elastic piece, and the second limiting block is pulled to move out of the limiting hole of the plugging plate, so that the constraint on the plugging plate is removed; and when the dead lever drives the connecting plate and reinserts to the guiding hole in, the tip of connecting plate acts on the hypotenuse of first stopper, force first stopper to remove to spacing intracavity again from the guiding hole, and exert pressure to the fourth elastic component, and the fourth elastic component exerts elasticity to the second stopper, the in-process that the third extensible component pulling shutoff board withdrawed to the casing again, when spacing hole on the shutoff board removed to when level with the second stopper, under the effect of fourth elastic component, promote the second stopper and reinsert to spacing downthehole, continue to fix the shutoff board.

A fixed plate is further arranged in the shell, one end of the third telescopic piece is connected with the fixed plate in a sealing mode, and the other end of the third telescopic piece is connected with the plugging plate in a sealing mode; still be equipped with the standing groove on the gas pipe inner wall, still be equipped with the fifth elastic component in the standing groove, fifth elastic component one end is connected with the standing groove inner bottom, and the other end is connected with the end connection of shutoff board towards the gas pipe direction.

The fixed plate that sets up is used for fixing the third extensible member, guarantees to inflate its inside after, and the third extensible member can only take place to stretch towards the shutoff board direction.

And in order to improve the response speed of the plugging plate, a fifth elastic piece is arranged, and when the limiting piece fixes the plugging plate, the fifth elastic piece is in a stretched state, so that after the limiting piece is unlocked, the plugging plate can be pulled to plug the gas pipe quickly under the action of the fifth elastic piece.

Furthermore, second accommodating cavities are also formed in two sides of the inner wall of the sampling tube, and second elastic parts and limiting blocks are arranged in the second accommodating cavities; the both sides of second movable block all are equipped with the third and hold the chamber, and the third on the second movable block holds the chamber and removes to holding the chamber with the second and level, and the elasticity that the second elastic component produced can promote the stopper and insert to the third and hold the intracavity.

When needs exhaust hole and gas pipe intercommunication among this technical scheme, the second movable block that sets up need take place to separate with the dead lever, the second movable block still need be fixed with the inner wall of sampling pipe simultaneously, just so can guarantee that the dead lever can remove smoothly on the second movable block, consequently, be provided with second elastic component and stopper on the inner wall of sampling pipe, the elasticity that utilizes the second elastic component to produce promotes the stopper and inserts to the third of second movable block and holds the intracavity, realized the second movable block and adopt fixed between the pipe.

Furthermore, a first unlocking block is arranged at the end part of the first movable block facing the direction of the second movable block, a gap is arranged at the end part of the first unlocking block facing the direction of the second movable block, and a third elastic piece and a second unlocking block are arranged in the gap; a groove is formed in the end face, facing the direction of the first movable block, of the second movable block, the first unlocking block can be inserted into the groove, and the groove is communicated with the third accommodating cavity; the elastic force of the third elastic member is greater than the elastic force of the second elastic member.

And when the natural gas in the gas pipe is sampled when needs, in order to guarantee that the second movable block can smoothly separate with the adoption pipe, so still be provided with first unblock piece on first movable block, third elastic component and second unblock piece, when first movable block and second movable block draw close, first unblock piece on the first movable block can insert to the recess on the second movable block in, and after first movable block and second movable block drawn close completely, the second unblock piece that sets up flushes with the stopper, and under the effect of third elastic component, utilize the second to release the block and push back the stopper to the second and hold the intracavity, realized the removal of stopper to the restraint of second movable block, make the second movable block at this moment can be smooth and then the dead lever remove in the sampling pipe.

Furthermore, the limiting block and the second unlocking block are both conical structures, and conical tips of the limiting block and the second unlocking block face each other.

The limiting block is required to be retracted into the second containing cavity by the second unlocking block, so that when the first movable block moves back towards the direction far away from the second movable block, the second unlocking block in the third containing cavity can be smoothly moved out of the groove of the second movable block, the second unlocking block is set to be in a conical structure, the second unlocking block is forced to retract towards the direction of the third elastic piece by the conical surface of the second unlocking block in the upward moving process of the second unlocking block, and the second unlocking block can smoothly pass through the groove;

similarly, when the first unlocking block on the first movable block is inserted into the groove, the upper surface of the second movable block acts on the conical surface of the second unlocking block to force the second unlocking block to compress the third elastic piece, so that the second unlocking block is smoothly inserted into the groove.

And after the dead lever drove the second movable block and stretch into to the gas pipe together with first movable block, need return first movable block and second movable block in proper order when returning to the sampling pipe again, in order to guarantee that first movable block and second movable block can pass through stopper department smoothly, so also set the stopper to the circular cone structure, utilize the second movable block and first movable block to act on the conical surface of stopper to make the stopper retract to the second and hold the intracavity.

The synchronous operation type natural gas energy metering Internet of things system comprises a user platform, a service platform, a management platform, a sensing network platform and a perception control platform which are sequentially interacted;

the perception control platform is the natural gas energy metering device, and transmits acquired perception information to the management platform through the sensing network platform; the management platform comprises an energy metering management system, the energy metering management system carries out comprehensive analysis processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues a control instruction to the perception control platform through the sensing network platform.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention realizes the integrated design of the natural gas energy metering device, and the parameter matching of each functional module is good, and the metering is more accurate; the integrated design is beneficial to improving the purchasing efficiency of a client, simultaneously improving the working efficiency of equipment management, simultaneously realizing the synchronous metering of the metering device and the management platform on the natural gas energy, and realizing the intelligent management operation of the natural gas energy metering by establishing an internet of things operation system;

2. when the natural gas in the gas pipe is collected, the first telescopic piece can drive the first movable block to move in the sampling pipe, the natural gas remained in the sampling pipe at the last period is quickly discharged into the gas pipe from the exhaust hole on the fixed rod, then the second movable block extends into the gas pipe from the pipe orifice of the sampling pipe, and the negative pressure generated when the first movable block moves back is used for pumping the natural gas at the last period into the sampling pipe, so that the natural gas in the sampling pipe can be accurately collected at different periods, and the energy value of the natural gas measured at each period is more accurate;

3. in the process of discharging the natural gas remained in the sampling pipe by using the first movable block, the compressed natural gas enters the channel and acts on the blocking block to force the blocking block to move out of the channel, so that the fixed rod can extend into the gas pipe, and the exhaust hole is communicated with the gas pipe, thereby realizing the purpose of quickly discharging the natural gas remained in the sampling pipe;

4. when the natural gas in the gas pipe is collected, the third telescopic piece can drive the plugging plate to be inserted into the gas pipe to plug the gas pipe temporarily, so that the front span and the rear span of the natural gas collected in the period are smaller, the collected natural gas is ensured to be in a reasonable interval, and the accuracy of measuring the energy value of the natural gas in the period is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the housing according to the present invention;

FIG. 3 is a schematic view of the interior of the housing of the present invention in one state;

FIG. 4 is a schematic view of the interior of the housing of the present invention in another state;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is an enlarged view of portion B of FIG. 3;

FIG. 7 is an enlarged view of portion C of FIG. 4;

FIG. 8 is an enlarged view of portion D of FIG. 6 according to the present invention;

FIG. 9 is an enlarged view of section E of FIG. 3;

fig. 10 is a schematic diagram of the system architecture in embodiment 3.

Reference numbers and corresponding part names in the drawings:

1-shell, 2-gas pipe, 3-sampling pipe, 4-air pump, 5-first telescopic part, 7-first movable block, 8-fixed rod, 9-exhaust hole, 10-second movable block, 11-channel, 12-first elastic part, 13-blocking block, 14-groove, 15-second telescopic part, 16-second elastic part, 17-limiting block, 18-blocking plate, 19-third telescopic part, 20-fifth elastic part, 21-second unlocking block, 22-third elastic part, 23-first unlocking block, 24-connecting pipe, 25-fixed plate, 26-connecting plate, 27-first limiting block, 28-second limiting block and 29-fourth elastic part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1

As shown in fig. 1, the natural gas sensing device comprises a shell 1, wherein a data preprocessing module and an energy calculating module are arranged in the shell 1, and the data preprocessing module is used for performing data classification and storage on sensing information of natural gas and transmitting the sensing information to the energy calculating module; the energy calculation module calculates the instantaneous working condition flow of the natural gas through the sensing information transmitted by the data preprocessing module, realizes the conversion to the instantaneous standard condition flow and the calculation of the standard condition flow in a set time period, matches the unit heating value of the natural gas corresponding to the standard condition flow through the data preprocessing module, and realizes the natural gas energy metering through the product of the two heating values.

The natural gas monitoring device further comprises a flow sensor, a pressure sensor and a temperature sensor which are arranged in the shell 1, wherein the flow sensor, the pressure sensor and the temperature sensor are used for acquiring sensing information of natural gas (respectively corresponding to the flow, pressure and temperature information of the natural gas), and the acquired sensing information is transmitted to the data preprocessing module; the device is characterized by further comprising a touch display screen and a communication module, wherein the touch display screen and the communication module are arranged in the shell 1, the touch display screen is respectively connected with the data preprocessing module and the energy calculating module, the communication module is respectively connected with the energy calculating module and the data preprocessing module, and the communication module is further connected with a gateway outside the device to realize the external communication of the device.

Acquiring instantaneous flow information of natural gas through a flow sensor, and transmitting the instantaneous flow information to a data preprocessing module; acquiring real-time pressure information of the natural gas through a pressure sensor, and transmitting the real-time pressure information to a data preprocessing module; and acquiring real-time temperature information of the natural gas through a temperature sensor, and transmitting the real-time temperature information to a data preprocessing module.

The heating device is characterized by further comprising a heating value analysis processing module arranged in the shell 1, wherein the output end of the heating value analysis processing module is connected with the data preprocessing module, the input end of the heating value analysis processing module is provided with a sample gas processing system and a standard gas processing system, the input end of the sample gas processing system is provided with a sample gas controller, the input end of the sample gas controller is further provided with a sample gas collection interface, and the sample gas controller is connected with the air pump 4; and the input end of the standard gas processing system is provided with a standard gas acquisition interface.

The natural gas sample gas sequentially enters the calorific value analysis processing module through the sample gas acquisition interface, the sample gas controller and the sample gas processing system, the calorific value analysis processing module calculates the calorific value of the sample gas, natural gas unit calorific value information corresponding to standard condition flow of the sample gas is obtained, and the natural gas unit calorific value information is transmitted to the data preprocessing module.

Preprocessing the perception information by a data preprocessing module, such as data classification, storage, transmission and the like; the data preprocessing module is electrically connected with the energy calculating module, the touch display screen, the communication module and the calorific value analyzing and processing module respectively, and bidirectional communication is achieved.

The energy calculation module acquires sensing information such as natural gas flow, pressure, temperature and the like through the data preprocessing module, calculates instantaneous working condition flow, and realizes conversion to instantaneous standard condition flow and calculation of standard condition flow in a set time period.

The energy calculation module is matched with the natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and the natural gas energy metering is realized through the product of the standard condition flow and the natural gas unit heating value corresponding to the standard condition flow in a set time period.

In addition, the standard gas can be collected by the standard gas collecting interface and the standard gas processing system and enters the calorific value analyzing and processing module, the calorific value analyzing and processing module calculates the calorific value of the standard gas, and the calculation result is compared with the standard value of the calorific value of the standard gas, so that the calibration of the calorific value analyzing and processing module is realized.

The touch display screen is electrically connected with the data preprocessing module and the energy calculating module respectively to realize bidirectional communication. The data preprocessing module sends information such as working condition pressure, temperature and sample gas heating value of the natural gas to the touch display screen, the energy calculating module sends information such as working condition flow, standard condition flow and energy of the natural gas to the touch display screen, and the touch display screen realizes display monitoring of the information at a site end; and related control instructions can be respectively sent to the data preprocessing module and the energy calculation module by operating the touch display screen on site, so that the parameters in the authority can be adjusted.

The data preprocessing module can also directly send sensing information such as working condition pressure, temperature, sample gas heating value and the like of the natural gas to the system management platform through the communication module of the device, and the management platform realizes remote energy metering accounting and synchronous metering of the energy metering device and the management platform.

This technical scheme energy metering device adopts the integrated design, concentrates each functional module to set up in casing 1, and each functional module parameter matching nature is good, and the measurement is more accurate, not only is favorable to improving customer purchasing efficiency, promotes equipment management work efficiency simultaneously.

Meanwhile, the metering efficiency of the metering device can be improved by adopting a synchronous calculation mode among the modules, the natural gas energy value can be rapidly metered, and the synchronous metering of the object platform and the management platform on the natural gas energy can be realized.

Example 2

As shown in fig. 2 to 9, on the basis of embodiment 1, the sample gas collecting interface further includes a sampling tube 3 disposed in the housing 1 and communicated with the gas tube 2, an air pump 4 communicated with the sampling tube 3 is further disposed on an outer wall of the sampling tube 3, the air pump 4 is connected with a sample gas controller, the sample gas controller is connected with a sample gas processing system, a first telescopic member 5 is disposed in the sampling tube 3, and an impurity removing element for discharging fluid in the sampling tube 3 is disposed at a movable end of the first telescopic member 5; still including setting up the third extensible member 19 in casing 1, the expansion end of third extensible member 19 is equipped with the shutoff board 18 that is used for the shutoff of gas pipe 2, still be equipped with in the gas pipe 2 and be used for the locating part fixed to shutoff board 18, when the edulcoration component stretched into in the gas pipe 2, the locating part can be removed the fixed to shutoff board 18.

Aiming at the problem that when the natural gas energy metering device in the prior art measures the natural gas in the gas pipe, because the traditional sample gas collecting interface adopts a mode of connecting the sampling pipe and the gas pipe, when the natural gas in the gas pipe needs to be collected, the set air pump is utilized to generate suction force in the sampling pipe, the natural gas in the gas pipe is sucked into the sampling pipe for subsequent energy analysis, but when the natural gas in different periods is sampled, part of the sample gas collected in the previous period always remains in the sampling pipe, so that the natural gas in the gas pipe is collected in the later period, the natural gas collected in the two periods can be mixed together, and the energy value of the measured natural gas in the period has errors, therefore, the technical scheme is provided with a first telescopic piece 5 and an impurity removing element in the existing sampling pipe 3, when the first telescopic piece 5 moves along the axial direction of the sampling pipe 3 in the sampling pipe 3, can drive the edulcoration component and remove in sampling pipe 3 to will gather the natural gas that remains in sampling pipe 3 at last period and discharge to gas pipe 2 in, thereby realized the purpose to edulcoration in sampling pipe 3, guaranteed like this that this period is gathered the natural gas that does not have the remaining natural gas of last period in the sampling pipe 3, thereby guaranteed that the energy value that this period measured the natural gas is more accurate.

Meanwhile, when natural gas in the gas pipe 2 is actually collected, the natural gas in the gas pipe 2 is in a flowing state, and when the natural gas in the gas pipe 2 has a high flow rate, the natural gas collected before and after a certain period has a large span and cannot accurately reflect the reasonable energy value of the gas pipe in the period, therefore, a blocking plate 18 for blocking the gas pipe 2 is further arranged in the shell, after the natural gas in the sampling pipe 3 in the previous period is discharged into the gas pipe 2 by using the arranged impurity removing element, the impurity removing element extends into the gas pipe 2, the impurity removing element can remove the restraint of the limiting part on the blocking plate 18, so that the blocking plate 18 can be driven to be inserted into the gas pipe 2 under the action of the third telescopic part 19, the gas pipe 2 is blocked, and the natural gas in the gas pipe 2 at the moment stops flowing state under the action of the blocking plate 18, consequently, follow-up in-process gathering the natural gas in the gas pipe 2, the span is not big around the natural gas that can guarantee to gather to guaranteed that the natural gas that this period of time was gathered is in reasonable within range, avoided because of the natural gas that the gas pipe 2 internal flow was leading to the natural gas interval of gathering around great, finally lead to the natural gas energy value that this period of time measured not accurate enough.

Furthermore, a fixing rod 8 is arranged in the sampling pipe 3, one end of the fixing rod 8 extends into the first telescopic piece 5, and the other end of the fixing rod can extend into the gas pipe 2; the impurity removing element comprises a first movable block 7 and a second movable block 10, the outer diameter of the first movable block is matched with the inner diameter of the sampling pipe 3, the first movable block 7 and the second movable block 10 are both sleeved on the fixed rod 8, and the movable end of the first telescopic piece 5 is connected with the first movable block 7; the fixed rod 8 is further provided with an exhaust hole 9 for discharging fluid in the sampling tube 3, and when the first movable block 7 moves towards the second movable block 10, the exhaust hole 9 can be opened.

In the technical scheme, a first movable block 7 and a second movable block 10 are arranged in an existing sampling pipe 3, both the first movable block 7 and the second movable block 10 can move in the sampling pipe 3 along the axial direction of the sampling pipe 3, a fixed rod 8 which is respectively connected with the first movable block 7 and the second movable block 10 in a sliding manner is also arranged in the sampling pipe 3, an exhaust hole 9 for exhausting fluid in the sampling pipe 3 is also arranged on the fixed rod 8, when the natural gas in the gas pipe 2 in the period is required to be collected, the first movable block 7 moves towards the second movable block 10, because the outer diameter of the first movable block 7 is consistent with the inner diameter of the sampling pipe 3, the first movable block 7 can compress the natural gas remained in the sampling pipe 3 in the last period in the moving process, and the exhaust hole 9 on the fixed rod 8 is in an open state, therefore, when the first movable block 7 compresses the natural gas remained in the sampling pipe 3, can discharge it to gas pipe 2 in from exhaust hole 9 fast to realized will last period in to the natural gas acquisition process, remain in sampling pipe 3 natural gas exhaust's purpose.

When natural gas in the gas pipe 2 is collected, the fixed rod 8 can move in the sampling pipe 3 along the axial direction thereof, so that the first movable block 7 and the second movable block 10 are drawn together, the natural gas remained in the sampling pipe 3 is completely discharged, the first movable block 7 and the second movable block 10 which are located in the fixed rod 8 and drawn together are stretched into the gas pipe 2 by using the fixed rod 8, then the first movable block 7 is returned into the sampling pipe 3, in the process of returning the first movable block 7 into the sampling pipe 3, the generated negative pressure can suck the natural gas in the gas pipe 2 in the period into the sampling pipe 3, the natural gas in the period is quickly collected, meanwhile, after the collection of the natural gas in the period is completed, the second movable block 10 is also returned into the sampling pipe 3, the pipe opening of the sampling pipe 3 is blocked, therefore, the natural gas in the sampling pipe 3 can be accurately collected in different time periods, and the energy value of the natural gas measured in each time period is more accurate.

The sampling tube is characterized by further comprising a first telescopic piece 5 arranged in the sampling tube 3, wherein one end of the first telescopic piece 5 is connected with the inner wall of the shell 1, and the other end of the first telescopic piece 5 is connected with a first movable block 7 along the axial direction of the sampling tube 3; the fixing rod 8 is inserted into the first telescopic member 5 in the axial direction of the first telescopic member 5.

The first telescopic member 5 is arranged to drive the normal movement of the first movable block 7 within the sampling tube 3.

A second telescopic piece 15 is further arranged in the first telescopic piece 5, one end of the second telescopic piece 15 is connected with the inner top surface of the first telescopic piece 5, and the other end of the second telescopic piece 15 is connected with the fixed rod 8; the first extensible member 5, the second extensible member 15 and the third extensible member 19 are corrugated pipes, the first extensible member 5 is communicated with the third extensible member 19 through a connecting pipe 24, and the first extensible member 5 and the second extensible member 15 are connected with the pump body through air pipes respectively.

The second extensible member 15 that sets up is used for driving the normal removal of dead lever 8 in sampling pipe 3, the bellows is all adopted to first extensible member 5 and the second extensible member 15 that set up in this technical scheme, it passes through the trachea and sets up the pump body coupling in the casing, utilize the pump body that sets up to fill gas in first extensible member 5 and the second extensible member 15, because the bellows can follow its axial expansion after aerifing and stretch, consequently utilize first extensible member 5 and the second extensible member 15 that set up to realize respectively the regulation to first movable block 7 and dead lever 8 position in sampling pipe 3.

Meanwhile, because the connecting pipe 24 is adopted to communicate the first telescopic part 5 with the third telescopic part 19, when the gas is introduced into the first telescopic part 5 in the initial state, the blocking plate 18 is in the locking state at the moment, the gas entering the first telescopic part 5 can preferentially force the first telescopic part 5 to collide in the sampling pipe 3, the first movable block 7 is driven to move in the sampling pipe 3, the residual natural gas in the previous period is discharged, when the fixed rod 8, the first movable block 7 and the second movable block 10 are together extended into the gas pipe 2, the constraint of the limiting part on the blocking plate 18 is removed, the gas filled into the first telescopic part 5 enters the third telescopic part 19 through the connecting pipe 24, the third telescopic part 19 is forced to collide and stretch along the axial direction thereof, the blocking plate 18 is pushed into the gas pipe 2, and the gas pipe 2 is blocked, the natural gas in the gas pipe 2 is blocked, so that the large span of the collected natural gas in the period is ensured.

A channel 11 is further arranged in the fixed rod 8, one end of the channel 11 is communicated with the exhaust hole 9, and the other end of the channel 11 is communicated with the side wall of the fixed rod 8; be equipped with the connecting hole that internal diameter and 8 external diameters of dead lever match on the second movable block 10, dead lever 8 inserts to the connecting hole in, be equipped with the first chamber that holds on the inner wall of connecting hole, the first intracavity that holds is equipped with first elastic component 12 and shutoff piece 13, the elasticity that first elastic component 12 produced can promote shutoff piece 13 and insert to passageway 11 in to carry out the shutoff to passageway 11.

In order to ensure that the exhaust hole 9 close to the lower end of the fixed rod 8 can be opened when the first telescopic piece 5 drives the first movable block 7 to move towards the second movable block 10, and simultaneously ensure that the exhaust hole 9 is in a blocking state when the first movable block 7 moves towards the direction far away from the second movable block 10, a channel 11 with an inverted T-shaped structure is arranged in the fixed rod 8, the upper end of the channel 11 is in a communication state with the exhaust hole 9, the other two ends of the channel 11 are respectively communicated with the two sides of the fixed rod 8, when the blocking block 13 on the inner wall of the connecting hole of the second movable block 10 is level with the channel 11, the blocking block 13 is pushed to be inserted into the channel 11 under the action of the first elastic piece 12 to block the channel 11, and therefore the blocking of the exhaust hole 9 is realized.

When the first movable block 7 moves towards the second movable block 10, the first movable block 7 compresses the natural gas remained in the sampling tube 3, the natural gas is forced to enter the channel 11 through the vent hole 9 and acts on the blocking block 13 in the channel 11, as the pressure generated by the first movable block 7 in the moving process gradually increases, when the pressure is greater than the elastic force of the first elastic part 12, the blocking block 13 is forced to compress the first elastic part 12 and retract into the first accommodating cavity, the fixing rod 8 removes the constraint force of the blocking block 13 on the fixing rod, the second telescopic part 15 is a corrugated tube, when the air pressure generated by compressing the natural gas in the moving process of the first movable block 7 in the sampling tube 3 can force the fixing rod 8 to actively move towards the gas tube 2, the channel 11 on the fixing rod 8 is dislocated with the first accommodating cavity, and finally the channels 11 on two sides of the fixing rod 8 extend into the gas tube 2, realized gas pipe 2 and exhaust hole 9's intercommunication, and then made the natural gas that remains in sampling pipe 3 can finally loop through exhaust hole 9, passageway 11 and enter into to gas pipe 2 in, will last period sampling remain the gas outgoing in sampling pipe 3.

And when first movable block 7 and second movable block 10 draw close together, under the effect of first movable block 7, carry out the shutoff to exhaust hole 9, at this moment, under the effect of second extensible member 15, can stimulate dead lever 8 toward retrieving to contract, when passageway 11 on the dead lever 8 is retraced back and is leveled with shutoff piece 13, under the effect of first elastic component 12, with shutoff piece 13 reinsertion to passageway 11 in, fix second movable block 10 on dead lever 8 again, guaranteed that exhaust hole 9 is in the encapsulated situation.

A second containing cavity is further formed in two sides of the inner wall of the sampling tube 3, and a second elastic part 16 and a limiting block 17 are arranged in each second containing cavity; the both sides of second movable block 10 all are equipped with the third and hold the chamber, and the third on the second movable block 10 holds the chamber and moves to holding the chamber with the second and level, and the elasticity that second elastic component 16 produced can promote stopper 17 and insert to the third and hold the intracavity.

When needs exhaust hole 9 and gas pipe 2 intercommunication among this technical scheme, the second movable block 10 that sets up need take place to separate with dead lever 8, second movable block 10 still need be fixed with the inner wall of sampling pipe 3 simultaneously, just so can guarantee that dead lever 8 can move on second movable block 10 smoothly, therefore, be provided with second elastic component 16 and stopper 7 on the inner wall of sampling pipe 3, the elasticity that utilizes second elastic component 16 to produce promotes stopper 7 and inserts the third of second movable block 10 and hold the intracavity, realized second movable block 10 and adopt the pipe 3 between fixed.

A first unlocking block 23 is arranged at the end part of the first movable block 7 facing the direction of the second movable block 10, a gap is arranged at the end part of the first unlocking block 23 facing the direction of the second movable block 10, and a third elastic part 22 and a second unlocking block 21 are arranged in the gap; a groove 14 is formed in the end face, facing the direction of the first movable block 7, of the second movable block 10, the first unlocking block 21 can be inserted into the groove 14, and the groove 14 is communicated with the third accommodating cavity; the elastic force of the third elastic member 22 is greater than the elastic force of the second elastic member 16.

When the natural gas in the gas pipe 2 needs to be sampled, in order to ensure that the second movable block 10 can be smoothly separated from the sampling pipe 3, a first unlocking block 23, a third elastic member 22 and a second unlocking block 21 are further arranged on the first movable block 7, when the first movable block 7 and the second movable block 10 are drawn together, the first unlocking block 23 on the first movable block 7 can be inserted into the groove 14 on the second movable block 10, and after the first movable block 7 and the second movable block 10 are completely drawn together, the second unlocking block 21 is flush with the limiting block 17, and under the action of the third elastic member 22, the limiting block 17 is pushed back into the second accommodating cavity by the second unlocking block 21, so that the second movable block 10 is removed by the limiting block 17, and the second movable block 10 can smoothly move along with the fixed rod 8 in the sampling pipe 3.

The limiting block 17 and the second unlocking block 21 are both conical structures, and the conical tips of the limiting block 17 and the second unlocking block 21 face each other.

Because the second unlocking block 21 needs to retract the limiting block 17 into the second accommodating cavity, when the first movable block 7 moves back towards the direction away from the second movable block 10, in order to ensure that the second unlocking block 21 located in the third accommodating cavity can be smoothly moved out of the groove 14 of the second movable block 10, the second unlocking block 21 is set to be in a conical structure, so that in the process that the second unlocking block 21 moves upwards, the conical surface of the second unlocking block 21 is utilized to force the second unlocking block 21 to retract towards the third elastic member 22, and the second unlocking block 21 can smoothly pass through the groove 14;

similarly, when the first unlocking block 23 on the first movable block 7 is inserted into the groove 14, the upper surface of the second movable block 10 acts on the conical surface of the second unlocking block 21, so that the second unlocking block 21 is forced to compress the third elastic element 22, and the insertion into the groove 14 is smooth.

And after dead lever 8 drove second movable block 10 and first movable block 7 and stretched into to gas pipe 2 together, need withdraw first movable block 7 and second movable block 10 in proper order again in sampling pipe 3, in order to guarantee that first movable block 7 and second movable block 10 can pass through stopper 17 department smoothly, so also set the conical structure with stopper 17, utilize second movable block 10 and first movable block 7 to act on the conical surface of stopper 17, thereby make stopper 17 retract to the second and hold the intracavity.

In the process of discharging the natural gas collected in the sampling pipe 3 at the previous period by using the first movable block 7, when the first movable block 7 and the second movable block 10 are completely closed, although the miscellaneous gas in the sampling pipe 3 is completely discharged at this time, a part of miscellaneous gas still stays in the exhaust hole 9 and the channel 11, and the miscellaneous gas of the part cannot be discharged, if the channel 11 on the fixed rod 8 is communicated, the miscellaneous gas remained in the exhaust hole 9 and the channel 11 can be preferentially collected into the sampling pipe by using the negative pressure generated in the process of moving back the first movable block 7, so that the sampling accuracy is influenced, for this reason, a check valve (not shown in the figure) is further arranged in the exhaust hole 9, so that in the process of discharging the miscellaneous gas in the sampling pipe 3, the gas in the sampling pipe 3 can only pass through the check valve and sequentially pass through the exhaust hole 9 and the channel 11 to enter the gas pipe 2, the realization is to the discharge of miscellaneous gas, and when needs gather the natural gas, earlier with 8 back removals of dead lever, utilize shutoff piece 13 to carry out the shutoff to passageway 11 again, then stretch into to gas pipe 2 with first movable block 7 and second movable block 10 together, because shutoff piece 13 on the second movable block 10 carries out the shutoff to passageway 11, and under the effect that is located the check valve that exhaust hole 9 is in, make passageway 11 and exhaust hole 9 at this moment be in the state of shutoff, consequently first movable block 7 is backing back the in-process to sampling pipe 3 in, remaining gas can't be inhaled to sampling pipe 3 in passageway 11 and the exhaust hole 9 in, and the natural gas of gas pipe 2 this period then inhales to sampling pipe 3 fast in, the quick sampling to certain period of natural gas has been realized.

And this technical scheme stretches into gas pipe 2 with first movable block 7 and second movable block 10 together, compares passageway 11, has enlarged the bore that the natural gas got into in gas pipe 3, has improved the collection efficiency to the natural gas.

Meanwhile, in the technical scheme, when the gas in the adopted pipe 3 is introduced into the exhaust hole 9, under the action of air pressure, the blocking block 13 in the channel 11 is forced to retract into the first accommodating cavity, so that the fixed rod 8 can extend into the gas pipe 2, the channel 11 is communicated with the gas pipe 2, after the exhaust is completed, the fixed rod 8 can move back again, the channel 11 is blocked by the blocking block 13 on the one hand, and the second movable block 10 can be fixed with the fixed rod 8 on the other hand, so that the follow-up second movable block 10 can extend into the gas pipe 2 along with the fixed rod 8, and the technical scheme adopts the mode that certain solid impurities such as silt and rock particles exist in the natural gas in some gas pipes 2, if the channel 11 is always communicated with the gas pipe 2 in the using process, after long-time, solid impurity in the natural gas enters into in the passageway 11 easily, easily cause the jam of passageway 11, cause the follow-up purpose that can't continue to discharge the miscellaneous gas in sampling pipe 3 through passageway 11, therefore, this technical scheme is when the miscellaneous gas that needs will take out in sampling pipe 3, dead lever 8 can be automatic from stretching into to gas pipe 2 in, the intercommunication of gas pipe 2 with passageway 11 has been realized, and after accomplishing the miscellaneous gas of row, can toward retracting dead lever 8, with passageway 11 from gas pipe 2 in retracting to second movable block 10, thereby avoided passageway 11 to expose always in gas pipe 2, cause the condition that passageway 11 blockked up to take place easily for a long time.

The limiting piece comprises a locking piece and an L-shaped connecting plate 26; the gas pipe 2 is a square pipe, a guide hole and a strip-shaped opening matched with the blocking plate 18 are formed in the gas pipe 2, the strip-shaped opening and the guide hole are communicated with the inside of the gas pipe 2, the blocking plate 18 can be inserted into the gas pipe 2 through the strip-shaped opening and blocks the gas pipe 2, and a limiting hole is formed in the side wall of the blocking plate 18; connecting plate 26 one end and dead lever 8 are towards the end connection of 2 directions of gas pipe, and the other end can insert to the guiding hole in, be equipped with the spacing chamber with the guiding hole intercommunication on the bar mouth inner wall, the retaining member is located spacing intracavity, and when connecting plate 26 inserted to the guiding hole in, connecting plate 26 can promote the retaining member and insert to the spacing downthehole on shutoff board 18.

In an initial state, when the set fixing rod 8 does not extend into the gas pipe 2, the set L-shaped connecting plate 26 is inserted into the guide hole, so that the locking part positioned in the limiting cavity is forced to be inserted into the limiting hole on the plugging plate 18, and the plugging plate 18 is fixed; and stretch into dead lever 8 to gas pipe 2 in the back, the connecting plate 26 of setting follows dead lever 8 to remove together for connecting plate 26 shifts out from spacing downthehole, has removed the constraining force to shutoff board 18, makes third extensible member 19 can promote shutoff board 18 and insert to gas pipe 2 in, carries out the shutoff to gas pipe 2.

Further, the locking member comprises a first limiting block 27, a second limiting block 28 and a fourth elastic member 29, the first limiting block 27, the second limiting block 28 and the fourth elastic member 29 are all located in the limiting cavity, two ends of the fourth elastic member 29 are respectively connected with the first limiting block 27 and the second limiting block 28, and the second limiting block 28 can be inserted into the limiting hole; the first limiting block 27 is also provided with a bevel edge towards the square end of the guide hole.

Specifically, at the initial state, since the connecting plate 26 is inserted into the guide hole, an extrusion force is generated on the first limiting block 27, so that the first limiting block 27 is forced to compress the fourth elastic member 29, and the second limiting block 28 is pushed to be inserted into the limiting hole of the blocking plate 18, thereby fixing the blocking plate 18; when the connecting plate 26 moves together with the fixing rod 8 and moves out of the guide hole, the fourth elastic element 29 can push the first limiting block 27 to move from the limiting cavity into the guide hole, and pull the second limiting block 28 to move out of the limiting hole of the blocking plate 18, so that the restriction on the blocking plate 18 is removed; when the fixing rod 8 drives the connecting plate 26 to be inserted into the guide hole again, the end of the connecting plate 26 acts on the bevel edge of the first limiting block 27 to force the first limiting block 27 to move into the limiting cavity again from the guide hole and apply pressure to the fourth elastic element 29, the fourth elastic element 29 applies elasticity to the second limiting block 28, the third telescopic element 19 pulls the plugging plate 18 to retreat back to the shell 1 again, and when the limiting hole on the plugging plate 18 moves to be flush with the second limiting block 28, the second limiting block 28 is pushed to be inserted into the limiting hole again under the action of the fourth elastic element 29, and the plugging plate 18 is continuously fixed.

A fixed plate 25 is further arranged in the shell 1, one end of the third telescopic piece 19 is connected with the fixed plate 25 in a sealing mode, and the other end of the third telescopic piece is connected with the plugging plate 18 in a sealing mode; still be equipped with the standing groove on the 2 inner walls of gas pipe, still be equipped with fifth elastic component 20 in the standing groove, fifth elastic component 20 one end is connected with the standing groove inner bottom, and the other end and the end connection of shutoff board 18 towards gas pipe 2 direction.

The fixing plate 25 is provided for fixing the third telescopic element 19 in such a way that the third telescopic element 19 can only be stretched towards the blanking plate 18 after inflation of the interior thereof.

In order to increase the response speed of the blocking plate 18, the fifth elastic member 20 is provided, and when the blocking plate 18 is fixed by the limiting member, the fifth elastic member 20 is in a stretched state, so that after the limiting member is unlocked, the blocking plate 18 can be pulled to rapidly block the gas pipe 2 under the action of the fifth elastic member 20.

Example 3

As shown in fig. 10, the synchronous operation type natural gas energy metering internet of things system includes a user platform, a service platform, a management platform, a sensing network platform and a sensing control platform, which are sequentially interactive;

the perception control platform is the natural gas energy metering device, and transmits acquired perception information to the management platform through the sensing network platform; the management platform comprises an energy metering management system, the energy metering management system carries out comprehensive analysis processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues a control instruction to the perception control platform through the sensing network platform. The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The synchronous operation type natural gas energy metering device is characterized by comprising a management platform and a shell (1), wherein a data preprocessing module and an energy calculating module are arranged in the shell (1), and the data preprocessing module is used for carrying out data classification and storage on perception information of natural gas and transmitting the perception information to the energy calculating module;

the energy calculation module calculates the standard condition flow in a set time period through the sensing information transmitted by the data preprocessing module, matches the natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and realizes natural gas energy measurement through the product of the natural gas unit heating value and the standard condition flow;

the data preprocessing module can transmit the processed information to the management platform, and the management platform realizes remote energy metering accounting.

2. The synchronous arithmetic formula natural gas energy metering device according to claim 1, further comprising a flow sensor, a pressure sensor and a temperature sensor arranged in the housing (1), wherein the flow sensor, the pressure sensor and the temperature sensor are used for collecting sensing information of natural gas and transmitting the collected sensing information to the data preprocessing module;

the energy storage device is characterized by further comprising a touch display screen and a communication module, wherein the touch display screen and the communication module are arranged in the shell (1), the touch display screen is respectively connected with the data preprocessing module and the energy calculating module, and the communication module is respectively electrically connected with the energy calculating module and the data preprocessing module to realize bidirectional communication;

the data preprocessing module is also used for transmitting the acquired sensing information of the natural gas to the communication module, and the communication module is used for realizing external information interaction.

3. The synchronous operation type natural gas energy metering device according to claim 1, further comprising a calorific value analysis processing module arranged in the housing (1), wherein an output end of the calorific value analysis processing module is connected with the data preprocessing module, and an input end of the calorific value analysis processing module is provided with a sample gas processing system and a standard gas processing system;

the calorific value analysis processing module is used for calculating the calorific value of the standard gas after impurity removal of the standard gas processing system, and comparing the calculation result with the standard value of the calorific value of the standard gas to realize the calibration of the calorific value analysis processing module;

the calorific value analysis processing module is used for calculating the calorific value of the sample gas subjected to impurity removal by the sample gas processing system and transmitting the calculated calorific value information of the natural gas unit corresponding to the standard condition flow to the data preprocessing module;

the input of sample gas processing system still is equipped with sample gas controller, sample gas controller's input still is equipped with sample gas and gathers the interface, standard gas processing system's input still is equipped with standard gas and gathers the interface.

4. The synchronous operation type natural gas energy metering device according to claim 3, wherein the sample gas collecting interface further comprises a sampling pipe (3) which is arranged in the housing (1) and communicated with the gas pipe (2), an air pump (4) which is communicated with the sampling pipe (3) is further arranged on the outer wall of the sampling pipe (3), a first telescopic piece (5) is arranged in the sampling pipe (3), and an impurity removing element which is used for discharging fluid in the sampling pipe (3) is arranged at the movable end of the first telescopic piece (5);

still including setting up third extensible member (19) in casing (1), the expansion end of third extensible member (19) is equipped with and is used for shutoff board (18) to gas pipe (2), still be equipped with in gas pipe (2) and be used for the locating part fixed to shutoff board (18), when the edulcoration component stretches into in gas pipe (2), the locating part can remove the fixed to shutoff board (18).

5. The synchronous operation type natural gas energy metering device according to claim 4, wherein a fixing rod (8) is arranged in the sampling pipe (3), one end of the fixing rod (8) extends into the first telescopic piece (5), and the other end of the fixing rod can extend into the gas pipe (2);

the impurity removing element comprises a first movable block (7) and a second movable block (10) of which the outer diameter is matched with the inner diameter of the sampling pipe (3), the first movable block (7) and the second movable block (10) are sleeved on the fixed rod (8), and the movable end of the first telescopic piece (5) is connected with the first movable block (7);

the fixing rod (8) is further provided with an exhaust hole (9) used for discharging fluid in the sampling pipe (3), and when the first fixing block (7) moves towards the second fixing block (10), the exhaust hole (9) can be opened.

6. The synchronous computing type natural gas energy metering device according to claim 5, wherein a second telescopic member (15) is further arranged in the first telescopic member (5), one end of the second telescopic member (15) is connected with the inner top surface of the first telescopic member (5), and the other end of the second telescopic member is connected with the fixing rod (8);

first extensible member (5) and second extensible member (15), third extensible member (19) are the bellows, and first extensible member (5) communicate with third extensible member (19) through connecting pipe (24), and first extensible member (5) and second extensible member (15) are connected with the pump body through trachea respectively.

7. The synchronous operation formula natural gas energy metering device according to claim 5, wherein a channel (11) is further arranged in the fixing rod (8), one end of the channel (11) is communicated with the exhaust hole (9), and the other end of the channel is communicated with the side wall of the fixing rod (8);

be equipped with the connecting hole that internal diameter and dead lever (8) external diameter match on second fixed block (10), dead lever (8) insert to the connecting hole in, be equipped with the first chamber that holds on the inner wall of connecting hole, the first intracavity that holds is equipped with first elastic component (12) and plugging block (13), the elasticity that first elastic component (12) produced can promote plugging block (13) and insert to passageway (11) in to carry out the shutoff to passageway (11).

8. The synchronously operated natural gas energy metering device according to claim 4, wherein the limiting member includes a locking member and an L-shaped connecting plate (26);

the gas pipe (2) is a square pipe, a guide hole and a strip-shaped opening matched with the blocking plate (18) are formed in the gas pipe (2), the strip-shaped opening and the guide hole are communicated with the interior of the gas pipe (2), the blocking plate (18) can be inserted into the gas pipe (2) through the strip-shaped opening and blocks the gas pipe (2), and a limiting hole is further formed in the side wall of the blocking plate (18);

connecting plate (26) one end and dead lever (8) are towards the end connection of gas pipe (2) direction, and the other end can insert in the guiding hole, be equipped with the spacing chamber with the guiding hole intercommunication on the bar mouth inner wall, the retaining member is located spacing intracavity, and when connecting plate (26) inserted in the guiding hole, connecting plate (26) can promote the retaining member and insert to spacing downthehole on shutoff board (18).

9. The synchronous operation type natural gas energy metering device according to claim 8, wherein the locking member comprises a first limiting block (27), a second limiting block (28) and a fourth elastic member (29), the first limiting block (27), the second limiting block (28) and the fourth elastic member (29) are all located in a limiting cavity, two ends of the fourth elastic member (29) are respectively connected with the first limiting block (27) and the second limiting block (28), and the second limiting block (28) can be inserted into the limiting hole;

the first limiting block (27) is also provided with a bevel edge towards the square end of the guide hole.

10. A synchronous operation type natural gas energy measurement Internet of things system is characterized in that,

the system comprises a user platform, a service platform, a sensing network platform and a perception control platform which are sequentially interacted;

the perception control platform is the natural gas energy metering device of any one of claims 1 to 9, and transmits acquired perception information to the management platform through the sensing network platform;

the management platform comprises an energy metering management system, the energy metering management system carries out comprehensive analysis processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues a control instruction to the perception control platform through the sensing network platform.