CN111503523A - Intelligent building gas pressure regulating system - Google Patents
Intelligent building gas pressure regulating system Download PDFInfo
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- CN111503523A CN111503523A CN202010337307.6A CN202010337307A CN111503523A CN 111503523 A CN111503523 A CN 111503523A CN 202010337307 A CN202010337307 A CN 202010337307A CN 111503523 A CN111503523 A CN 111503523A
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- regulating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/448—Auxiliary equipment or operation thereof controlling filtration by temperature measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
- F16K5/0652—Spindles or actuating means for remote operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an intelligent building gas pressure regulating system which comprises an air inlet flange, a medium-pressure air inlet electric ball valve, an air inlet pressure gauge, a filter, a pressure regulator, a gas transmission pipeline, an output electric ball valve, an outlet flange, a pressure and temperature detection sensor, an MCU (microprogrammed control unit) processor and a valve control driving unit. The pressure and temperature detection sensor is connected to the air inlet pressure gauge to sense the pressure value and the temperature value of the medium-pressure air inlet passage, and transmit the sensed pressure value and temperature value to the MCU processor for operation, and the MCU processor is further connected with the valve control driving unit. The first pressure and temperature detection sensor transmits the sensed pressure value and temperature value to the MCU processor, the MCU processor is used for judging the received pressure value and temperature value, and if the pressure value and temperature value are higher than a preset value, the MCU processor sends a control signal to the valve control driving unit so as to correspondingly control the closing of the medium-pressure air inlet electric ball valve. The intelligent building gas pressure regulating system can realize the function of automatically controlling the medium-pressure air inlet electric ball valve.
Description
Technical Field
The invention relates to an intelligent gas pressure regulating box, in particular to an intelligent building gas pressure regulating system.
Background
The existing common building gas pressure regulating tank is characterized in that the lower part of the middle of a manifold is connected with an emergency cut-off, when a pressure regulator fails and has overpressure, the emergency cut-off is shut off in an expected manner, but the emergency cut-off is all mechanical, the condition that the pressure regulator is held before gas stopping due to failure cannot be realized, once the gas is cut off and stopped, gas supply can be recovered only when the gas reaches the site no matter how far the distance is, much inconvenience is brought to daily management of workers, and the gas pressure regulating tank is labor-consuming, troublesome and wastes financial and material resources.
The filter is arranged in the header, so that whether the filter is blocked or damaged cannot be judged, the filter is maintained by experience, and a large amount of manpower and material resources are wasted.
The direct connection of the pressure regulator of the existing common building gas pressure regulating box can cause the total damage of the rear-end gas meter.
The rear end of the existing common building gas pressure regulating tank is exposed or exposed, which can cause continuous exposure or secondary accidents.
In the existing common building gas pressure regulating tank, the gas supply emergency is blind emergency or timing pipe network inspection, and a large amount of manpower and material resources are wasted.
Disclosure of Invention
Aiming at the defects of the prior art:
the technical problem to be solved by the invention is as follows: the utility model provides an intrinsically safe type intelligence building gas pressure regulating box, intelligence building gas pressure regulating box itself 24 hours detect pressure regulating box front and back pressure, and the automatic valve that closes of MCU that pipeline gas pressure appears unusually need not the manpower and intervenes or intervene through the execution of thing networking to the fastest speed protects building pressure regulating box self safety and rear end gas table safety. After the valve is closed, the intelligent building gas pressure regulating box can be manually set: the valve is opened automatically when the detection data is normal, or opened through the networking communication, and intelligent building gas pressure regulating box still can open the valve and close the valve through server, cell-phone APP remote execution.
The time through monitoring intelligent building gas pressure regulating box rear end decompression judges whether normal use decompression or booster reveal decompression, and normal decompression can not be closed, and booster, reveal decompression then can self-closing.
The filter quality is judged by monitoring the pressure change before and after the filter, so that the aim of accurate management is fulfilled.
The gas flow supply of the building box is obtained by monitoring the pressure and temperature changes of the gas inlet end and the gas outlet end of the intelligent building gas pressure regulating box, and accurate guidance is provided for supply and emergency rescue.
And through the emergency times and the emergency work data, scientific guidance is provided for the gas company to adjust the pipe network and balance the pipe network supply.
The invention provides an intelligent building gas pressure regulating system which comprises a gas inlet flange, a medium-pressure gas inlet electric ball valve, a gas inlet pressure gauge, a filter, a pressure regulator, a gas transmission pipeline, an output electric ball valve, an outlet flange, a first pressure temperature detection sensor, an MCU (microprogrammed control unit) processor and two valve control driving units, wherein one end of the gas inlet flange is connected with an external gas pipeline, the other end of the gas inlet flange is connected with one end of the filter after passing through the medium-pressure gas inlet electric ball valve, the gas inlet pressure gauge is arranged between the medium-pressure gas inlet electric ball valve and the filter, the other end of the filter is connected with one end of the output electric ball valve after passing through the pressure regulator, and the other end of the output electric ball valve is connected with the outlet flange, wherein the first pressure temperature detection sensor is connected to the gas inlet; the first pressure and temperature detection sensor is also connected with the MCU processor and used for transmitting the sensed pressure value and temperature value to the MCU processor for operation, the MCU processor is also connected with the valve control driving units, and the two valve control driving units are respectively connected with the medium-pressure air inlet electric ball valve and the output electric ball valve so as to correspondingly control the opening or closing of the medium-pressure air inlet electric ball valve and the output electric ball valve;
the first pressure and temperature detection sensor transmits the sensed pressure value and temperature value to the MCU processor, the MCU processor is used for judging the received pressure value and temperature value, and if the pressure value and temperature value are higher than a preset value range or lower than the preset value range, the MCU processor sends a control signal to the valve control driving unit so as to correspondingly control the closing of the medium-pressure air inlet electric ball valve.
Further, the pressure regulating system further comprises a second pressure and temperature detection sensor, wherein the second pressure and temperature detection sensor is connected to the rear end of the filter arranged in the front end of the pressure regulator so as to sense the pressure value and the temperature value at the rear end of the filter; the MCU processor is also used for comparing the pressure value of the air inlet pressure with the pressure value at the outlet of the filter, and if the difference value between the pressure values exceeds a preset value, the MCU processor judges that the filter works abnormally.
The pressure regulating system further comprises a third pressure and temperature detection sensor, wherein the third pressure and temperature detection sensor is connected to a rear end outlet passage of the pressure regulator so as to sense a pressure value and a temperature value at the rear end of the pressure regulator; the MCU processor is also used for judging the pressure value at the rear end of the pressure regulator, and if the pressure value is higher than or lower than a preset value, the MCU processor sends a control signal to the valve control driving unit so as to correspondingly control the closing of the medium-pressure air inlet electric ball valve.
Furthermore, the voltage regulating system further comprises a bidirectional communication unit, wherein the bidirectional communication unit is connected with the MCU processor and is used for transmitting the signals received by the MCU processor to the rear-end data platform.
Furthermore, the voltage regulating system also comprises a power supply unit, and the power supply unit is used for supplying power to the processor and the whole high-voltage system.
Further, the pressure regulating system further comprises a display unit, wherein the display unit is connected with the MCU processor and used for displaying the working state of the whole intelligent building gas pressure regulating system, the on-off state of the air inlet ball valve, the detected working pressure and working temperature, the battery power supply residual capacity and the like.
Furthermore, the voltage regulating system also comprises a Bluetooth unit, wherein the Bluetooth unit is connected with the MCU processor and is used for transmitting data between the handheld electronic equipment and the MCU processor, and the handheld electronic equipment can be used for reading various working data of the building voltage regulating box and switching on and off the building voltage regulating box.
Furthermore, the voltage regulating system further comprises a solar power supply and charging unit, wherein the solar power supply and charging unit is used for providing working voltage for the MCU processor.
Wherein, the electric ball valve that admits air of middling pressure includes valve body subassembly and the electric actuator assembly who links to each other with the valve body subassembly, the valve body subassembly includes valve body, disk seat, spheroid, flange, valve gap and valve rod, the valve gap is located the bottom of valve body, the disk seat sets up in the valve body, the spheroid sets up in the disk seat, flange joint sets up in the lower extreme of valve body and the top of neighbouring valve gap, the electric actuator assembly sets up in the side of valve body, and links to each other with the spheroid through the valve rod to drive spheroidal motion through the valve rod, and then realize opening or closing of the electric ball valve that admits air of middl.
The electric output ball valve comprises a valve body assembly and an electric actuator assembly connected with the valve body assembly, the valve body assembly comprises a valve body, a valve seat, a ball body, a flange, a valve cover and a valve rod, the valve cover is located at the bottom end of the valve body, the valve seat is arranged in the valve body, the ball body is arranged in the valve seat, the flange is connected to the lower end of the valve body and arranged above the adjacent valve cover, the electric actuator assembly is arranged on the side face of the valve body and connected with the ball body through the valve rod to drive the ball body to move through the valve rod, and therefore the electric output ball valve is opened or closed.
When the intelligent building gas pressure regulating system adopting the technical scheme is in work, the pressure and the temperature at the front end of the filter are detected through the pressure and temperature detection sensor, and are transmitted to the back-end data platform for pipe network operation analysis after being operated by the MCU processor, so that the system is beneficial to a natural gas company to regulate the pressure of natural gas at the front end and is beneficial to the natural gas company to regulate and manage the transmission error; the pressure and temperature at the rear end of the filter can be detected by a pressure and temperature detection sensor, the pressure and temperature are calculated by the MCU processor and then transmitted to a rear end data platform, and the rear end data platform can judge whether the filter needs to be replaced or maintained by judging the pressure difference change at the front end and the rear end of the filter; the pressure and temperature at the outlet end of the pressure regulator can be detected by a pressure and temperature detection sensor, the pressure and temperature are calculated by the MCU processor and then transmitted to the back-end data platform, and the back-end data platform can judge whether emergency rescue needs to be arranged or not according to the pressure at the outlet end of the pressure regulator; the pressure and the temperature at the front end of the filter can be detected through a pressure and temperature detection sensor, when the pressure value is larger than a set value range or smaller than the set value range, the MCU processor sends a valve closing instruction to the valve control driving unit, and the valve control driving unit drives the medium-pressure air inlet electric ball valve and the output electric ball valve to close the valve. Meanwhile, when the pressure and temperature detection sensor detects that the pressure and the temperature at the front end of the filter are normal, the MCU processor can send a valve opening signal to the driving module to open the medium-pressure air inlet electric ball valve and output the electric ball valve.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of an intelligent building gas pressure regulating system of the present invention.
FIG. 2 is a schematic structural diagram of a preferred embodiment of the intelligent building gas pressure regulating system of the present invention.
Fig. 3 is a schematic structural view of the intake ball valve of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1, which is a schematic diagram of a preferred embodiment of an intelligent building gas pressure regulating system according to the present invention. The preferred embodiment of the intelligent building gas pressure regulating system comprises an air inlet flange 1, a medium-pressure air inlet electric ball valve 2, an air inlet pressure gauge 3, a filter 4, a pressure regulator 5, a gas pipeline 6, an output electric ball valve 7, an outlet flange 8, three pressure and temperature detection sensors 9, 90 and 91, an MCU (microprogrammed control Unit) processor 10, two valve control driving units 11 and 20, a voltage monitoring unit 12, an EPROM unit 13, a display unit 15, a power supply unit 16, a two-way communication unit 17 and a data platform 18.
One end of the air inlet flange 1 is connected with an external gas pipeline, and the other end of the air inlet flange is connected with one end of the filter 4 after passing through the medium-pressure air inlet electric ball valve 2. And the air inlet pressure gauge 3 is arranged between the medium-pressure air inlet electric ball valve 2 and the filter 4. The other end of the filter 4 is connected with one end of the output electric ball valve 7 after passing through the pressure regulator 5, and the other end of the output electric ball valve 7 is connected with the outlet flange 8. The pressure and temperature detection sensor 9 is connected to the air inlet pressure gauge 3 to sense the pressure value and the temperature value of the medium-pressure pipe network at the air inlet end; the pressure and temperature detection sensor 90 is connected to the gas transmission pipeline 6 to sense the pressure value and the temperature value at the outlet; the pressure and temperature detecting sensor 91 is connected between the filter 4 and the pressure regulator 5 to sense the pressure value and the temperature value at the rear end of the filter 4. The pressure and temperature detection sensors 9, 90 and 91 are also connected with the MCU processor 10 and used for transmitting the sensed pressure value and temperature value to the MCU processor 10 for operation. The MCU processor 10 is also connected with valve control driving units 11 and 20, a voltage monitoring unit 12, an EPROM unit 13, a display unit 16 and a bidirectional communication unit 17. The power supply unit 16 is connected to the MCU processor 10 to provide operating power to all devices.
In this embodiment, the MCU processor 10 stores an intake preset pressure/temperature value and an outlet preset pressure/temperature value, and compares the received pressure value from the intake medium-pressure pipe network sensed by the pressure detection sensor 9 with the intake preset pressure value, and is further configured to compare the received pressure value from the outlet sensed by the pressure detection sensor 91 with the outlet preset pressure value, so as to determine the sizes of the two values, and output a corresponding control signal. The valve control driving units 11 and 20 are configured to receive control signals from the MCU processor 10 to correspondingly control the medium-pressure intake electric ball valve 2 and the output electric ball valve 7 to open or close. Meanwhile, the MCU processor 10 transmits the received signals to a back-end data platform through the two-way communication unit 17 for the gas company to check, and provide the manager with knowledge of the operation of the medium-pressure pipe network.
Specifically, in this embodiment, after the pressure and temperature detection sensor 9 senses a pressure value and a temperature value of the intake medium-pressure pipe network, the MCU processor 10 is configured to determine the received pressure value and temperature value of the intake end, and if the pressure and temperature value is higher than a preset value range, send a control signal to the valve control driving units 11 and 20 to correspondingly control the closing of the medium-pressure intake electric ball valve 2 and the output electric ball valve 7, so as to protect the rear-end user pressure valve; if the current value is lower than the preset value range, the rear-end pressure regulator 5 may work in an unsaturated state, which affects the precision and the service life of the pressure regulator, and at this time, the MCU processor 10 sends control signals to the valve control driving units 11 and 20 to correspondingly control the closing of the medium-pressure intake electric ball valve 2 and the output electric ball valve 7, so as to further enable the pressure regulator 5 to be in a non-working state. Meanwhile, the MCU processor 10 is further configured to transmit the pressure value and the temperature value sensed by the pressure and temperature detection sensor 9 to the background data platform through the two-way communication unit 17, and the gas management company analyzes the pressure value and the temperature value in the preset time period to obtain the operation condition of the pipe network, and can adjust the gas transmission pressure value according to the actual condition, for example, when it is determined that the demand for rear-end gas is increased, the number of the rear-end pipes can be increased according to the actual condition.
In this embodiment, the pressure and temperature detecting sensor 9 is combined with the MCU processor 10, and also has a function of protecting the service life of the pressure regulator 5, the difference between the gas throughput in summer and winter of the pipe network is 10 times or more, the pipe network is full of load in summer and overload in winter is the current practical operation situation of all natural gas companies at present, and the load of the natural gas pipe network is embodied in that the pressure of the pipe network is lower and lower, so that the use of the back-end user cannot be satisfied at all. The pressure regulator 5 can generate earthquake kick under the unsaturated working condition, the high-frequency earthquake kick can cause the deformation of a membrane of the pressure regulator 5 so as to cause leakage, the pressure and temperature detection sensor 9 is combined with the MCU processor 10, and when the pressure of a medium-pressure pipe network is reduced to a set value, the medium-pressure air inlet electric ball valve is turned off before the emergency of a gas company, so that the unsaturated working time and the frequency of the pressure regulator 5 are reduced, and the service life of the pressure regulator 5 is prolonged.
The MCU processor 10 is further configured to compare the pressure value at the air inlet end with the pressure value at the rear end of the filter 4, and if the difference between the two pressure values is determined to exceed a preset value, determine that the filter 4 is abnormal in operation and may be blocked. Meanwhile, the MCU processor 10 is further configured to determine a pressure value at the rear end of the filter 4, and if the pressure value is higher than a preset value, determine that the filter 4 is abnormal.
The MCU processor 10 is further configured to compare the pressure value of the output end of the pressure regulator 5 sensed by the pressure/temperature detection sensor 90 with a preset value range, and if the pressure value of the output end of the pressure regulator 5 is determined to be higher than the preset value range, close the medium-pressure air intake electric ball valve 2 and output the electric ball valve 7, so as to prevent the gas meter of the rear end user from being damaged. If the pressure at the output end of the pressure regulator 5 is judged to be lower than the preset value range, whether the reason is tube burst, leakage and the like needs to be further judged. Meanwhile, if the MCU processor 10 further determines a pressure drop value within a specified time period to determine whether the pressure drop value is an instantaneous pressure drop, i.e., whether the pressure drop value is an accident pressure drop or a normal pressure drop, if the pressure drop value is an accident pressure drop, the vehicle needs to go to the emergency repair immediately. In addition, the MCU processor 10 is further configured to determine a change in a pressure value at the output end of the pressure regulator 5 when the output electric ball valve 7 is closed, and further determine whether the output electric ball valve 7 leaks, thereby implementing a self-checking function of the output electric ball valve 7. The first pressure and temperature detecting sensor 90 also has a self-checking function of the pressure regulator, and can detect whether the pressure regulator 5 leaks or leaks air when the output electric ball valve is turned off. The pressure and temperature detection sensor 90 also has the safety function of protecting the rear-end gas meter group, the highest working pressure of the gas meter is 15kpa, once the pressure regulator 5 leaks or is directly connected, all the gas meters at the rear end are directly damaged, the pressure and temperature detection sensor 90 is combined with the MCU processor 10, when the pressure is sensed to exceed a set value, the medium-pressure air inlet electric ball valve 2 is turned off, and the safety of the rear-end gas meter group is protected. Pressure temperature detection sensor 90 still has rear end gas concurrently and leaks, booster, conflagration protect function, and the rear end pipe network decompression is different with normal use decompression physics phenomenon in the twinkling of an eye, can judge whether accident decompression or normal use decompression through the decompression time, pressure temperature detection sensor 90 combines with MCU treater 10, senses when pressure is less than the setting value, closes the middling pressure electric ball valve 2 that admits air, avoids secondary accident and loss of property.
The data platform can run independently, becomes a big data management center, and can be connected with other big data management platforms in a seamless mode. The server and the mobile phone with the APP software can see the working condition of the pressure regulating system in real time and can also execute remote management and control. The MCU processor 10 has a historical operating data storage function. The MCU processor 10 also has a Bluetooth communication function, the function is for gas company management fool-proof use, the pipeline patrol staff only need to use mobile phone Bluetooth to communicate with the pressure regulating system once when arriving at the patrol point, and then the on-point card punching is completed, and all working data and historical working data can be read through mobile phone communication. The MCU processor 10 also has a display function, and the valve opening and closing, the valve opening and the working pressure and temperature data can be visually displayed. The MCU processor 10 also has a communication function, and can complete bidirectional communication with a server and a mobile phone. The solar power supply system is divided into weak light power generation and strong light power generation, so that the solar power supply system is suitable for all-terrain and all-environment installation of the intelligent building box without influencing power taking, and the problem of short power supply duration of a dry battery is solved.
The following will describe a preferred embodiment of the intelligent building gas pressure regulating system according to the present invention in more detail with reference to fig. 2:
the intelligent building gas pressure regulating system comprises an air inlet pipeline, an air inlet flange 1, a medium-pressure air inlet electric ball valve 2, a filter 4, an air inlet pressure gauge 3, a pressure regulator 5, a pressure measuring air valve 30, an output electric ball valve 7, an outlet flange 8, an air outlet pipeline, a reset pull ring, a safety cut-off valve and an intelligent module box, wherein an MCU (microprogrammed control Unit) 10, valve control driving units 11 and 20, a voltage monitoring unit 12, an EPROM (erasable programmable read-only memory) unit 13, a display unit 15, a power supply unit 16 and a two-way communication unit 17 are arranged in the intelligent. In this embodiment, the intelligent module box adopts split type structure, and its benefit is that safe partition, the performance that does not reduce original ordinary pressure regulating box have increased full intelligence, big data management function simultaneously.
In this embodiment, after the functional requirement, the technical difficulty and the design cost of considering comprehensively the gas pressure regulator, MCU processor 10 can adopt the chip that the model is STM 32L 151R8T6, STM 32L 151R8T6 chip is 32 bits microcontroller based on the 512K byte flash memory of taking of ARM core, its operating frequency is 72MHz, built-in high-speed memory (up to 512K byte flash memory and 64K byte SRAM), abundant reinforcing I/O port and the peripheral hardware that couples to two APB buses, the Cortex of ARMTMM3 is a 32-bit RISC processor, provides additional code efficiency, and plays the high performance of ARM core on the storage space of general 8 and 16 bit system, STM 32L R8T6 contains 3 12-bit ADCs, 4 general 16-bit timers and 2 PWM timers, and also contains standard and advanced communication interfaces, up to 2I 2C interfaces, 3 SPI interfaces, 2I 2S interfaces, 1 SDIO interface, 5 RT interfaces, a USB interface and a USART interface, which fully meet the requirements of various aspects of gas regulator design, the supply voltage of the STM 32L R8T6 chip is 3.3V, and an MD5333 voltage-stabilizing chip CAN be selected, the MD5333 voltage-stabilizing chip is a low-voltage-difference, high-precision output voltage, ultra-low-power current, positive voltage type voltage, and MD5333 chip has built-in low-pass resistance transistor, thus the input and output voltage difference is low, the highest working voltage of the MD5333 voltage-stabilizing chip CAN reach 10V, and the application voltage-resisting circuit suitable for higher voltage application is needed.
The bidirectional communication unit 17 adopts a BC26 wireless communication module, the BC26 wireless communication module supports the global frequency band (B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66), only one module is needed to cover the global requirement, and the BC26 wireless communication module has an ultra-small volume and the size is only 17.7 x15.8x2.0mm. Meanwhile, the BC26 wireless communication module can also provide rich external interfaces (UART, SPI, ADC and the like) and network protocol stacks (TCP/CoAP/MQTT and the like) to support OpenCPU functions, and meanwhile, the product supports China Mobile OneNet cloud platforms, China telecom EasyIoT and Hua Oceanconnect Internet of things cloud platforms, and saves more than 80% of electricity compared with the traditional GPS module.
In order to meet various requirements of the design of the gas pressure regulator, the valve control driving units 11 and 20 are preferably driving modules of model DRV8837C, have the advantages of stable performance, convenient control, high cost performance and the like, and can completely meet various requirements of the design of the gas pressure regulator.
The EPROM cell uses HT 24L 32 chip.
In this embodiment, the display unit is configured to display the operating state of the entire intelligent building gas pressure regulating system, the on-off states of the medium-pressure intake electric ball valve and the output electric ball valve, and the detected operating pressure and operating temperature.
When the intelligent building gas pressure regulating system works, the normal inlet pressure range of a gas pipeline is 0.2-0.4 MPa, the outlet pressure is 3KPA for civil use, the industry is generally 5-20KPA, the commerce is about 10KPA, the monitoring value range of each pressure and temperature detection sensor is set by a natural gas company according to the self condition, and when the pressure and temperature detection sensors monitor that the pressure of a monitoring point exceeds a set value, the intelligent building gas pressure regulating system can automatically cut off the medium-pressure air inlet electric ball valve 2 at the inlet and the output electric ball valve 7 at the outlet.
In addition, the present embodiment may further include a bluetooth unit, which is connected to the processor 10 and may be used for managing the attendance and card punching of the staff at the work station. The staff once communicates with the intelligent building gas pressure regulating system through the mobile phone, the communication data are directly transmitted to the computer server through the wireless network, and the computer automatically confirms that the staff arrives at the site. Meanwhile, managers can open and close the medium-pressure air inlet electric ball valve and the output electric ball valve of the intelligent building gas pressure regulating system on site by using a mobile phone, read working data on site and the like.
Furthermore, the solar energy power supply and charging unit can also comprise a solar energy power supply and charging unit, and the solar energy power supply and charging unit can adopt a full-environment solar energy power supply system. The intelligent building gas pressure regulating system is characterized in that the use sites are distributed in a star-shaped manner, the intelligent modules can completely use commercial power to supply power, which cannot be completed, the power cannot be continuously and durably supplied by direct current, the working times of the intelligent modules can only be reduced, or the intelligent modules can be automatically shut down once the intelligent modules are completely worked, and the problem is perfectly solved by combining solar power supply and a charging system.
With continued reference to fig. 3, the medium-pressure electric intake ball valve 2 and the output electric ball valve 7 each include a valve body component and an electric actuator assembly 26 connected to the valve body component, where the valve body component includes a valve body 20, a valve seat 21, a ball 22, a flange 23, a valve cover 24, and a valve rod 25. The valve cover 24 is located at the bottom end of the valve body 20, the valve seat 21 is arranged in the valve body 20, the ball 22 is arranged in the valve seat 21, and the flange 23 is connected to the lower end of the valve body 20 and is arranged above the valve cover 24. The electric actuator assembly 26 is disposed on the side of the valve body 20, and is connected to the ball 22 through the valve rod 25, so as to drive the ball 22 to move through the valve rod 25, thereby opening or closing the medium-pressure intake electric ball valve 2 and the output electric ball valve 5. In this embodiment, the electric actuator assembly 26 at least includes an actuating motor and a controller capable of controlling the actuating motor to operate, a transmission shaft of the actuating motor is connected to the valve rod 25, and the controller is connected to the valve control driving unit 11 and configured to receive a driving signal from the valve control driving unit 11. Of course, the valve rod 25 can also be adjusted manually, that is, one end of the valve rod 25 close to the electric actuator assembly 26 protrudes out of the electric actuator assembly 26, and an operator can manually rotate one end of the valve rod 25 protruding out of the electric actuator assembly 26 to drive the ball 22 to move through the rotation of the valve rod 25, so as to open or close the medium-pressure intake electric ball valve 2 or the output electric ball valve 5.
In the implementation mode of the invention, the intelligent module box and other components in the intelligent building gas pressure regulating system are in a split structure, the intelligent module box can be fixed on the box body of the building pressure regulating box, the intelligent module box is electrically connected with other components through cables, the intelligent module box adopts a sealed box body design, and a door is arranged in front of the intelligent module box and can be opened and closed so as to be convenient for maintenance.
In this embodiment, the intelligent module box shown in fig. 2 can be disposed at the upper end of the whole intelligent building gas pressure regulating system according to actual needs, and the location thereof does not limit the protection scope of the present invention.
When the intelligent building gas pressure regulating system adopting the technical scheme is in work, the pressure and the temperature at the front end of the filter are detected through the pressure and temperature detection sensor, and are transmitted to the back-end data platform for pipe network operation analysis after being operated by the MCU processor 10, so that the system is beneficial to a natural gas company to regulate the pressure of natural gas at the front end and is beneficial to the natural gas company to regulate and manage the transmission error; the pressure and temperature at the rear end of the filter can be detected by a pressure and temperature detection sensor, the pressure and temperature are calculated by the MCU processor 10 and then transmitted to a rear end data platform, and the rear end data platform can judge whether the filter needs to be replaced or maintained by judging the pressure difference change at the front end and the rear end of the filter; the pressure and temperature at the outlet end of the pressure regulator can be detected by a pressure and temperature detection sensor, the pressure and temperature are calculated by the MCU processor 10 and then transmitted to the back-end data platform, and the back-end data platform can judge whether emergency rescue needs to be arranged or not according to the pressure at the outlet end of the pressure regulator; the pressure and the temperature at the front end of the filter can be detected through a pressure and temperature detection sensor, when the pressure value is larger than a set value, the MCU processor sends a valve closing instruction to the valve control driving unit, and the valve control driving unit drives the medium-pressure air inlet electric ball valve to close and outputs the electric ball valve to close. Meanwhile, when the pressure and temperature detection sensor detects that the pressure and the temperature at the front end of the filter are normal, the MCU processor can send a valve opening signal to the driving module to open the medium-pressure air inlet electric ball valve and output the electric ball valve.
The design inspiration of the invention comes from the natural survival of the freshwater mussels, which can be closed to seek self protection when meeting the environmental change and can be automatically opened to enjoy the beauty of the nature when the environment is normal. The invention combines a full-environment solar power supply and charging system, solves the problem that the Internet of things technology module consumes large power and is difficult to work continuously in reality, and effectively forms an ecological system of the intelligent building voltage regulating box. Meanwhile, the intelligent building pressure regulating box can also be used for seamlessly butting a large data platform, so that the problem of the last short plate of the smart city gas is effectively solved. The intelligent building pressure regulating box can not only ensure self-safety in real time, but also ensure the safety of a series of equipment behind the pressure regulating box, including gas meters of all rear-end users. Meanwhile, whether the filter is blocked can be monitored in real time on line, accurate management of equipment operation is achieved, and a large amount of manpower and material resources are saved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an intelligence building gas pressure regulating system which characterized in that: the pressure regulating system comprises an air inlet flange, a medium-pressure air inlet electric ball valve, an air inlet pressure gauge, a filter, a pressure regulator, a gas transmission pipeline, an output electric ball valve, an outlet flange, a first pressure and temperature detection sensor, an MCU (micro control unit) processor and two valve control driving units, wherein one end of the air inlet flange is connected with an external gas pipeline, the other end of the air inlet flange is connected with one end of the filter after passing through the medium-pressure air inlet electric ball valve, the air inlet pressure gauge is arranged between the medium-pressure air inlet electric ball valve and the filter, the other end of the filter is connected with one end of the output electric ball valve after passing through the pressure regulator, the other end of the output electric ball valve is connected with the outlet flange, and the first pressure and temperature detection sensor is connected to the; the first pressure and temperature detection sensor is also connected with the MCU processor and used for transmitting the sensed pressure value and temperature value to the MCU processor for operation, the MCU processor is also connected with the valve control driving units, and the two valve control driving units are respectively connected with the medium-pressure air inlet electric ball valve and the output electric ball valve so as to correspondingly control the opening or closing of the medium-pressure air inlet electric ball valve and the output electric ball valve;
the first pressure and temperature detection sensor transmits the sensed pressure value and temperature value to the MCU processor, the MCU processor is used for judging the received pressure value and temperature value, and if the pressure value and temperature value are higher than a preset value range or lower than the preset value range, the MCU processor sends a control signal to the valve control driving unit so as to correspondingly control the closing of the medium-pressure air inlet electric ball valve.
2. The intelligent building gas pressure regulating system of claim 1, wherein: the pressure regulating system also comprises a second pressure and temperature detection sensor which is connected between the rear end of the filter and the front end of the pressure regulator so as to sense the pressure value and the temperature value at the rear end of the filter; and the MCU processor is also used for comparing the pressure value at the air inlet pressure gauge with the pressure value at the outlet, and if the difference value between the pressure values exceeds a preset value, the MCU processor judges that the filter works abnormally and needs to be maintained or replaced.
3. The intelligent building gas pressure regulating system of claim 1, wherein: the pressure regulating system still includes third pressure temperature detection sensor, third pressure temperature detection sensor connects on the rear end export passageway of voltage regulator, the MCU treater still is used for detecting the pressure value and the temperature of voltage regulator exit end.
4. The intelligent building gas pressure regulating system of claim 1, wherein: the voltage regulating system further comprises a bidirectional communication unit, wherein the bidirectional communication unit is connected with the MCU processor and is used for transmitting the signals received by the MCU processor to the back-end data platform.
5. The intelligent building gas pressure regulating system of claim 1, wherein: the voltage regulating system further comprises a power supply unit, and the power supply unit is used for supplying power to the processor and the whole voltage regulating system.
6. The intelligent building gas pressure regulating system of claim 1, wherein: the pressure regulating system further comprises a display unit, wherein the display unit is connected with the MCU processor and used for displaying the working state of the whole intelligent building gas pressure regulating system, the opening and closing states of the air inlet ball valve, the detected working pressure and working temperature and the battery power using condition.
7. The intelligent building gas pressure regulating system of claim 1, wherein: the pressure regulating system further comprises a Bluetooth unit, wherein the Bluetooth unit is connected with the MCU processor and used for transmitting man-machine conversation between the handheld electronic equipment and the MCU processor.
8. The intelligent building gas pressure regulating system of claim 1, wherein: the voltage regulating system further comprises a solar power supply and charging unit, and the solar power supply and charging unit is used for providing working voltage for the MCU processor.
9. The intelligent building gas pressure regulating system of claim 1, wherein: the electric ball valve that admits air of middling pressure includes valve body subassembly and the electric actuator assembly who links to each other with the valve body subassembly, the valve body subassembly includes valve body, disk seat, spheroid, flange, valve gap and valve rod, the valve gap is located the bottom of valve body, the disk seat sets up in the valve body, the spheroid sets up in the disk seat, flange joint is in the lower extreme of valve body and the top setting of neighbouring valve gap, the electric actuator assembly sets up in the side of valve body, and links to each other with the spheroid through the valve rod to drive spheroidal motion through the valve rod, and then realize opening or closing of the electric ball valve that admits air of middling.
10. The intelligent building gas pressure regulating system of claim 1, wherein: the electric ball valve of output includes valve body subassembly and the electric actuator assembly who links to each other with the valve body subassembly, the valve body subassembly includes valve body, disk seat, spheroid, flange, valve gap and valve rod, the valve gap is located the bottom of valve body, the disk seat sets up in the valve body, the spheroid sets up in the disk seat, flange joint is in the lower extreme of valve body and the top setting of neighbouring valve gap, the electric actuator assembly sets up in the side of valve body, and links to each other with the spheroid through the valve rod to drive spheroidal motion through the valve rod, and then realize opening or closing of output electric ball valve.
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