CN110081312B - Oil field pipeline heat tracing control system - Google Patents
Oil field pipeline heat tracing control system Download PDFInfo
- Publication number
- CN110081312B CN110081312B CN201910376414.7A CN201910376414A CN110081312B CN 110081312 B CN110081312 B CN 110081312B CN 201910376414 A CN201910376414 A CN 201910376414A CN 110081312 B CN110081312 B CN 110081312B
- Authority
- CN
- China
- Prior art keywords
- control
- module
- temperature
- heat tracing
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The embodiment of the invention discloses an oilfield pipeline heat tracing control system which comprises a main control MCU, and a power module, a temperature acquisition module, a LoRa module, a pressure acquisition module, a voltage acquisition module, a current acquisition module and a power control module which are respectively connected with the main control MCU.
Description
Technical Field
The embodiment of the invention relates to the technical field of oilfield pipeline heat tracing, in particular to an oilfield pipeline heat tracing control system.
Background
When the external environment is lower in the transportation process of petroleum, wax dissolved in the petroleum is separated out and adhered to a conveying pipeline, the pipeline is blocked after a long time, and therefore a heat tracing system specially used for heating the petroleum conveying pipeline is required to be arranged so that the petroleum in the petroleum conveying pipeline can keep a certain temperature, the state of a liquid-gas mixture is always kept, flowing and transportation are facilitated, and the heat tracing control system is equipment used for controlling the operation of the heat tracing system.
The prior oilfield pipeline heat tracing control system has the following problems: (1) the control feedback index is single, heating is controlled by only acquiring one temperature, the acquired temperature data does not meet the current requirement, a plurality of oil field pipelines do not need to be controlled by adopting the temperature, the oil field pipelines do not meet all oil viscosity-temperature characteristics, and the universality is poor; (2) the tail end temperature of the pipeline is not collected, but is one of important parameters of heat tracing control, the heating effect of many oil wells needs the parameter to be fed back and controlled, and many important technical data are missing, so that the construction of a digital oil field is not met; (3) the touch screen and the keys are usually adopted for relevant parameter configuration, the touch screen cannot be normally started at the temperature of minus 40 ℃ in the north, and a heating control panel is required to be added below the touch screen, so that a large amount of electric energy is consumed, the complexity of a control system is increased, and the key configuration also has many difficulties for oil field operation engineers in severe environment; (4) the networking function is lacked, alarm information cannot be timely pushed to relevant responsible personnel when equipment breaks down, the maintenance is not timely, the pipeline is easy to block when the pipeline stops heating for a long time, and finally the oil extraction is stopped.
Disclosure of Invention
Therefore, the embodiment of the invention provides an oilfield pipeline heat tracing control system, which aims to solve the problems of single control feedback index, poor universality and high energy consumption of the existing oilfield pipeline heat tracing control system.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a heat tracing control system for an oilfield pipeline comprises a main control MCU, and a power module, a temperature acquisition module, an LoRa module, a pressure acquisition module, a voltage acquisition module, a current acquisition module and a power control module which are respectively connected with the main control MCU;
the temperature acquisition module comprises a plurality of temperature sensors and a plurality of signal conversion circuits, wherein the temperature sensors are respectively used for acquiring the temperature of produced liquid, the outlet sealing temperature, the temperature of the tail end of the pipeline, the radiation temperature and the surface temperature of a heat tracing cable; the LoRa module is used for sending the temperature of the tail end of the pipeline acquired by the temperature sensor to the master control MCU in a LoRa wireless transmission mode; the pressure acquisition module comprises a pressure sensor for acquiring pipeline pressure and a signal conversion circuit connected with the pressure sensor; the voltage acquisition module is used for acquiring the voltage of the electric tracing loop; the current acquisition module is used for acquiring the current of the electric tracing loop; the power control module comprises a control solid-state relay for controlling the switch of the electric tracing loop solid-state relay, a relay driving circuit connected with the control solid-state relay, a low-power contactor for controlling the voltage regulator of the electric tracing loop to switch the low-power output, a low-power contactor driving circuit connected with the low-power contactor, a high-power contactor for controlling the voltage regulator of the electric tracing loop to switch the high-power output, and a high-power contactor driving circuit connected with the high-power contactor.
Furthermore, the system also comprises a fault indication module connected with the master control MCU, wherein the fault indication module comprises an LED driving circuit and an LED fault indication lamp which are connected with each other.
Further, the system further comprises a 4G module connected with the main control MCU, and the 4G module is used for being connected with a cloud server.
Further, the system also comprises an ESP32 communication module connected with the master MCU, and the ESP32 communication module is used for connecting a mobile terminal.
Further, the system further comprises an RS485 communication module connected with the master control MCU, and the RS485 communication module is used for connecting an upper computer.
Furthermore, the system also comprises an input detection module, wherein the input detection module comprises a digital signal input detection module, a switching signal quantity input detection module and a key input detection module which are all connected with the main control MCU.
Furthermore, the system also comprises a clock module connected with the master control MCU.
Furthermore, the system also comprises a Flash storage module connected with the main control MCU.
Further, the main control MCU adopts an ARM Cortex-M4 type embedded processor.
The embodiment of the invention has the following advantages:
according to the oil field pipeline heat tracing control system provided by the embodiment of the invention, various technical parameters such as the temperature of produced liquid, the pressure of a pipeline, the sealing temperature of an outlet wire, the temperature of the tail end of the pipeline, the radiation temperature (oil temperature), the surface temperature of a heat tracing cable, the voltage, the current and the like are collected in real time to be used as control feedback indexes of the heat tracing system, heat tracing control is carried out according to the oil viscosity temperature characteristic, the heat tracing control function of different oil field pipelines is met, the universality is high, power output control modes with different sizes are adopted, the control precision is high, a large amount of power consumption is reduced, and the energy conservation is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an oilfield pipeline heat tracing control system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a temperature acquisition module of an oilfield pipeline heat tracing control system according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a pressure acquisition module of an oilfield pipeline heat tracing control system according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a power control module of an oilfield pipeline heat tracing control system according to embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a fault monitoring module of an oilfield pipeline heat tracing control system according to embodiment 1 of the present invention.
In the figure: the intelligent monitoring device comprises a main control MCU1, a power supply module 2, a temperature acquisition module 3, a LoRa module 4, a pressure acquisition module 5, a voltage acquisition module 6, a current acquisition module 7, a power control module 8, a fault monitoring module 9, a 4G module 10, an ESP32 communication module 11, an RS485 communication module 12, an input detection module 13, a clock module 14 and a Flash storage module 15.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
Example 1
As shown in fig. 1, the oilfield pipeline heat tracing control system provided by this embodiment includes a main control MCU1, and a power module 2, a temperature acquisition module 3, an LoRa module 4, a pressure acquisition module 5, a voltage acquisition module 6, a current acquisition module 7, a power control module 8, a fault monitoring module 9, a 4G module 10, an ESP32 communication module 11, an RS485 communication module 12, an input detection module 13, a clock module 14, and a Flash storage module 15, which are respectively connected to the main control MCU 1.
Further, the main control MCU1 adopts an ARM Cortex-M4 type embedded processor, and the specific parameters are as follows: ARMCortex-M432B MCU + FPU, 210DMIPS, up to 1MB flash memory/1924 KB RAM, USB OTG HS/FS, Ethernet, 17TIMs, 3ADCs, 15 communication interfaces and cameras.
The power module 2 comprises a power input interface, a positive and negative reverse connection protection circuit, a TPS5430 type switch power chip and a power filter circuit which are connected in sequence, and is used for providing power supplies such as DC3.3V, DC5V or DC24V and the like for the system.
As shown in fig. 2, the temperature acquisition module 3 includes a plurality of temperature sensors for acquiring a temperature of a produced liquid (a mixed stock solution including crude oil, water, and gas produced by an oil well), a radiation temperature (an oil temperature), an outlet sealing temperature, a temperature of a tail end of a pipeline, a temperature of a surface of a heat tracing cable, and a plurality of signal conversion circuits respectively connected to the plurality of temperature sensors. The outlet sealing temperature also includes different occurring sealing temperatures, such as outlet one sealing temperature and outlet two sealing temperature. The signal conversion circuit is a 4-20mA current/voltage conversion circuit.
LoRa module 4 is used for sending the pipeline tail end temperature of gathering through temperature sensor to main control MCU1 through the wireless transmission mode of LoRa. The LoRa wireless transmission mode has the following advantages and is suitable for working in the oil field environment: (1) the LoRa transmission distance reaches 15Km in a visible clear and stable manner; (2) LoRa is low-power consumption itself, is fit for low-power consumption product. The distance between the tail end of the pipeline and the head end of the pipeline in the oil field environment is long, about 1-10Km, the tail end temperature of the pipeline is difficult to acquire, the wireless transmission distance for acquiring the tail end temperature of the pipeline can at least reach 10Km, the tail end of the pipeline is difficult to supply power, the wind and light complementary mode is generally adopted for supplying power, the product is required to have the characteristic of low power consumption, and the difficulty in acquiring the tail end temperature of the pipeline is effectively solved by adopting the LoRa wireless communication technology.
As shown in fig. 3, the pressure acquisition module 5 includes a pressure sensor for acquiring the pressure of the pipeline and a signal conversion circuit connected to the pressure sensor. The signal conversion circuit is a 4-20mA current/voltage conversion circuit. The multiple sensor signals are simultaneously transmitted in a DMA multiple transmission mode, and the data processing of the multiple sensors is carried out in the main control MCU 1.
The voltage acquisition module 6 is used for acquiring the voltage of the electric tracing loop and comprises a voltage acquisition instrument. The current collection module 7 is used for collecting the current of the electric tracing loop and comprises a current collection instrument.
As shown in fig. 4, the power control module 8 includes a control solid-state relay for controlling the on/off of the electric tracing loop solid-state relay, a relay driving circuit connected to the control solid-state relay, a low-power contactor for controlling the electric tracing loop voltage regulator to switch the low-power output, a low-power contactor driving circuit connected to the low-power contactor, a high-power contactor for controlling the electric tracing loop voltage regulator to switch the high-power output, and a high-power contactor driving circuit connected to the high-power contactor. By being equipped with two modes of large power and small power, for example, when the temperature precision requirement needing to be adjusted is higher (the control precision is 0.1 ℃), the control can be switched to the small power for accurate debugging control, the precision of heat tracing control is greatly improved by adopting the flexible control mode, and a large amount of power consumption is reduced.
Further, the system further includes a fault monitoring module 9 connected to the main control MCU1, as shown in fig. 5, the fault monitoring module 9 includes an LED driving circuit and an LED fault indicator lamp connected to each other. When the heat tracing has equipment faults, the equipment faults are detected in time through abnormity of the collected parameters, sound and light alarm warning is sent out through the LED fault indicating lamp, fault removal can be carried out by combining with mobile phone app, and an engineer can conveniently overhaul the faults.
Further, the system still includes the 4G module 10 of being connected with master control MCU1, master control MCU1 passes through UART communication interface and 4G module 10 communication connection, 4G module 10 is used for connecting the high in the clouds server, realize functions such as MQTT agreement message propelling movement and subscription, realize the function of networking, upload all technical parameter data of gathering to the high in the clouds in real time, the control front end can directly carry out relevant configuration to on-the-spot master control equipment through the high in the clouds, manpower and materials significantly reduce like this, make things convenient for oil field managers to look over current oil field pipeline heat tracing effect in real time, and in case the equipment trouble immediately, the propelling movement message gives relevant person in charge so that in time overhaul.
Further, the system also comprises an ESP32 communication module 11 connected with the master MCU1 through a UART communication interface, and the ESP32 communication module 11 is used for connecting a mobile terminal. ESP32 communication module 11 adopts ESP32 type chip, possesses WIFI/bluetooth dual mode communication, can directly carry out LAN wireless communication with mobile terminals such as cell-phones, the effectual oil field operation engineer of having solved problem difficult under adverse circumstances, oil field operation engineer can look over the relevant data and the pipeline heat tracing effect of gathering in real time at the scene through cell-phone APP.
Further, the system also comprises an RS485 communication module 12 connected with the master control MCU1 through a UART communication interface, and the RS485 communication module 12 is used for connecting an upper computer.
Further, the system further comprises an input detection module 13, and the input detection module 13 comprises a digital signal input detection module, a switching signal quantity input detection module and a key input detection module which are all connected with the main control MCU 1. The key input detection module 13 includes a system start button input detection and a system scram button input detection. Further, the system further comprises an RTC clock module 14 connected to the master MCU1 through an IIC communication interface. Further, the system also comprises a Flash storage module 15 connected with the master control MCU1 through a UART communication interface, and is used for storing local FLASH records.
According to the oil field pipeline heat tracing control system, a large amount of real-time data are collected, such as a plurality of technical parameter indexes including output liquid temperature, pipeline pressure, outlet line one sealing temperature, outlet line two sealing temperature, pipeline tail end temperature, radiation temperature (oil temperature), surface temperature of a heat tracing cable, voltage, current and the like, the modern digital oil field requirements are met, heat tracing control is flexibly configured according to oil viscosity-temperature characteristics, oil field engineers select different technical parameters as priority control indexes according to oil kinematic viscosity data obtained through other channels, when the kinematic viscosity is less than 300 centimetres, the pipeline pressure is used as a main control parameter (main control), and other parameters can be used as auxiliary control; when the kinematic viscosity is more than or equal to 300 centistokes and less than 1000 centistokes, the radiation temperature (oil temperature) is used as a main control parameter (main control), and other parameters are used as auxiliary control; when the kinematic viscosity is greater than or equal to 1000 centistokes, the surface temperature of the heat tracing cable is used as a main control parameter (main control), and other parameters are used as auxiliary controls, so that the heat tracing control function of different oil field pipelines is met.
Specifically, a gradual stepped control mode is adopted, for example, a plurality of parameters such as a main control, an auxiliary control one and an auxiliary control three are adopted to participate in the control, the priority of the main control is set to be highest, the control range is set to be largest, the auxiliary control one is set to be a second priority and is larger, the control range is set to be smaller, the auxiliary control two is set to be a third priority and is smaller, the auxiliary control four is set to be a fourth priority and is smallest, for example, the temperature control precision of the main control is 5 ℃, the temperature control precision of the auxiliary control is 1 ℃ and the like, when the main control meets the control range, the first auxiliary control is started to control, when the first main control and the second auxiliary control both meet the requirements, the second auxiliary control is started to control, when the main control, the auxiliary control I and the auxiliary control II meet the requirements, the auxiliary control III is started for control, the auxiliary control III control mode can adopt PWM to carry out heat tracing adjustment, and the oil field pipeline heat tracing control is realized to have extremely high temperature control precision.
The oil field pipeline heat tracing control system that this embodiment provided, through the output liquid temperature of gathering in real time, pipeline pressure, the sealing temperature of being qualified for the next round of competitions, pipeline tail end temperature, radiant temperature (oil temperature), heat tracing cable surface temperature, voltage, multiple technical parameter such as electric current is as heat tracing system's control feedback index, embedded operating system, carry out heat tracing control according to oil viscosity temperature characteristic, satisfy the heat tracing control function of different oil field pipelines, the commonality is high, adopt the power output control mode of variation in size, control accuracy is high, a large amount of power consumption has been reduced, energy-conservation nature is good, establish communication through wifi bluetooth and cell phone terminal, the effectual oil field operation engineer of having solved is difficult problem under adverse circumstances, possess the fault detection function simultaneously, built-in 4G module 10 realizes networking function, be convenient for timely fault maintenance.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The oilfield pipeline heat tracing control system is characterized by comprising a main control MCU, and a power module, a temperature acquisition module, a LoRa module, a pressure acquisition module, a voltage acquisition module, a current acquisition module and a power control module which are respectively connected with the main control MCU; the temperature acquisition module comprises a plurality of temperature sensors and a plurality of signal conversion circuits, wherein the temperature sensors are respectively used for acquiring the temperature of produced liquid, the outlet sealing temperature, the temperature of the tail end of the pipeline, the radiation temperature and the surface temperature of a heat tracing cable; the LoRa module is used for sending the temperature of the tail end of the pipeline acquired by the temperature sensor to the master control MCU in a LoRa wireless transmission mode; the pressure acquisition module comprises a pressure sensor for acquiring pipeline pressure and a signal conversion circuit connected with the pressure sensor; the voltage acquisition module is used for acquiring the voltage of the electric tracing loop; the current acquisition module is used for acquiring the current of the electric tracing loop; the power control module comprises a control solid-state relay for controlling the switch of the electric tracing loop solid-state relay, a relay driving circuit connected with the control solid-state relay, a low-power contactor for controlling the electric tracing loop voltage regulator to switch the low-power output, a low-power contactor driving circuit connected with the low-power contactor, a high-power contactor for controlling the electric tracing loop voltage regulator to switch the high-power output and a high-power contactor driving circuit connected with the high-power contactor; the system also comprises a 4G module connected with the master control MCU, wherein the 4G module is used for connecting a cloud server; the system also comprises an ESP32 communication module connected with the master MCU, wherein the ESP32 communication module is used for connecting a mobile terminal; the main control MCU adopts an ARMCortex-M4 type embedded processor;
selecting different technical parameters as priority control indexes according to the obtained oil kinematic viscosity data, and when the kinematic viscosity is less than 300 centistokes, adopting pipeline pressure as main control and other parameters as auxiliary control; when the kinematic viscosity is more than or equal to 300 centistokes and less than 1000 centistokes, the radiation temperature is used as a main control parameter, and other parameters are used as auxiliary controls; when the kinematic viscosity is greater than or equal to 1000 centistokes, the surface temperature of the heat tracing cable is used as a main control, and other parameters are used as auxiliary controls;
the method comprises the steps of adopting a gradual stepped control mode, adopting a main control parameter, an auxiliary control parameter I, an auxiliary control parameter II and an auxiliary control parameter II to participate in control, setting the priority of the main control to be highest and the control range to be largest, setting the priority of the auxiliary control to be second and the control range to be larger, setting the priority of the auxiliary control to be third and the control range to be smaller, setting the priority of the auxiliary control to be fourth and the control range to be minimum, starting the auxiliary control parameter I to control when the main control meets the control range, starting the auxiliary control parameter II to control when the main control parameter I and the auxiliary control parameter I both meet the requirements, starting the auxiliary control parameter III to control when the main control parameter I, the auxiliary control parameter II and the auxiliary control parameter II meet the requirements, and adopting PWM to carry out heat tracing adjustment.
2. The oilfield pipeline heat tracing control system according to claim 1, further comprising a fault indication module connected with the master control MCU, wherein the fault indication module comprises an LED drive circuit and an LED fault indicator lamp which are connected with each other.
3. The oilfield pipeline heat tracing control system according to claim 1, further comprising an RS485 communication module connected with the master control MCU, wherein the RS485 communication module is used for connecting an upper computer.
4. The oilfield pipeline heat tracing control system according to claim 1, further comprising an input detection module, wherein the input detection module comprises a digital signal input detection module, a switching signal quantity input detection module and a key input detection module all connected with the main control MCU.
5. The oilfield pipeline heat tracing control system of claim 1, further comprising a clock module connected to the master MCU.
6. The oilfield pipeline heat tracing control system according to claim 1, further comprising a Flash storage module connected with the main control MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376414.7A CN110081312B (en) | 2019-05-07 | 2019-05-07 | Oil field pipeline heat tracing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376414.7A CN110081312B (en) | 2019-05-07 | 2019-05-07 | Oil field pipeline heat tracing control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110081312A CN110081312A (en) | 2019-08-02 |
| CN110081312B true CN110081312B (en) | 2020-04-28 |
Family
ID=67419033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910376414.7A Active CN110081312B (en) | 2019-05-07 | 2019-05-07 | Oil field pipeline heat tracing control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110081312B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118224537A (en) * | 2024-05-24 | 2024-06-21 | 新疆石油管理局有限公司 | Intelligent buried heating pipeline system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615624A (en) * | 2013-11-30 | 2014-03-05 | 中国科学院电工研究所 | Fused salt pipeline heating device |
| CN103759857A (en) * | 2014-01-23 | 2014-04-30 | 北京鑫雅图科贸有限公司 | Material pipeline tracing heat on-line monitoring system |
| CN204119557U (en) * | 2014-09-24 | 2015-01-21 | 中国石油天然气股份有限公司 | Electric tracing band temperature controller |
| CN104898639A (en) * | 2015-04-03 | 2015-09-09 | 珠海格力电器股份有限公司 | System for equipment state detection and control method |
| CN206057934U (en) * | 2016-08-15 | 2017-03-29 | 天津市华澄供水工程技术有限公司 | A kind of freezing prevention tubing long distance control system |
| CN108430124A (en) * | 2018-06-21 | 2018-08-21 | 荆春皋 | With the series-parallel heating cable from temp sensing function |
| CN108566694A (en) * | 2017-12-08 | 2018-09-21 | 唯真（廊坊）石油科技股份有限公司 | A kind of client cables |
| CN109060185A (en) * | 2018-09-03 | 2018-12-21 | 智云安科技(北京)有限公司 | A kind of heating cable with temperature and breakpoint perceptional function |
| CN109144067A (en) * | 2018-09-17 | 2019-01-04 | 长安大学 | A kind of Intelligent cleaning robot and its paths planning method |
| CN208476428U (en) * | 2018-05-31 | 2019-02-05 | 中国石油天然气股份有限公司 | Electric tracing band inspection device, electric tracing band and electric tracing band |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2908975Y (en) * | 2006-02-17 | 2007-06-06 | 中国石油大学(北京) | Pipeline petroleum heating device |
| CN102797978A (en) * | 2011-05-25 | 2012-11-28 | 宋维东 | 1140V ultrasonic frequency induction heater |
| US9062808B2 (en) * | 2012-11-20 | 2015-06-23 | Elwha Llc | Underwater oil pipeline heating systems |
| CN203131434U (en) * | 2013-04-03 | 2013-08-14 | 哈尔滨绎丰自动化科技有限公司 | Microcomputer electric heat tracing system |
| CN205606069U (en) * | 2016-05-12 | 2016-09-28 | 北京天成冠通能源科技有限公司 | Novel electromagnetic induction heating oil field pipeline companion thermal system |
| CN205864773U (en) * | 2016-07-26 | 2017-01-04 | 北京航信伟业保温科技有限公司 | A kind of self limiting temperature heating cable control system |
-
2019
- 2019-05-07 CN CN201910376414.7A patent/CN110081312B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615624A (en) * | 2013-11-30 | 2014-03-05 | 中国科学院电工研究所 | Fused salt pipeline heating device |
| CN103759857A (en) * | 2014-01-23 | 2014-04-30 | 北京鑫雅图科贸有限公司 | Material pipeline tracing heat on-line monitoring system |
| CN204119557U (en) * | 2014-09-24 | 2015-01-21 | 中国石油天然气股份有限公司 | Electric tracing band temperature controller |
| CN104898639A (en) * | 2015-04-03 | 2015-09-09 | 珠海格力电器股份有限公司 | System for equipment state detection and control method |
| CN206057934U (en) * | 2016-08-15 | 2017-03-29 | 天津市华澄供水工程技术有限公司 | A kind of freezing prevention tubing long distance control system |
| CN108566694A (en) * | 2017-12-08 | 2018-09-21 | 唯真（廊坊）石油科技股份有限公司 | A kind of client cables |
| CN208476428U (en) * | 2018-05-31 | 2019-02-05 | 中国石油天然气股份有限公司 | Electric tracing band inspection device, electric tracing band and electric tracing band |
| CN108430124A (en) * | 2018-06-21 | 2018-08-21 | 荆春皋 | With the series-parallel heating cable from temp sensing function |
| CN109060185A (en) * | 2018-09-03 | 2018-12-21 | 智云安科技(北京)有限公司 | A kind of heating cable with temperature and breakpoint perceptional function |
| CN109144067A (en) * | 2018-09-17 | 2019-01-04 | 长安大学 | A kind of Intelligent cleaning robot and its paths planning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110081312A (en) | 2019-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105223939B (en) | Suitable for the multi-source heat transfer agent acquisition of agriculture Internet of Things application and the integrated fexible unit of control | |
| CN202210231U (en) | Direct current power supply monitoring system | |
| CN204347514U (en) | A kind of water conservancy information intelligent telemetry terminal system based on multi-channel data acquisition | |
| CN210957918U (en) | Intelligent constant display power monitoring device | |
| CN110081312B (en) | Oil field pipeline heat tracing control system | |
| CN202255556U (en) | Hydrological telemetering terminal with low power consumption | |
| CN212903702U (en) | Wireless pressure transmitter based on NB-IoT transmission | |
| CN211878729U (en) | Intelligent monitoring system for acquisition equipment | |
| CN203148470U (en) | Wireless telemetry terminal device for comprehensive water regimen | |
| CN203658872U (en) | Swimming pool temperature and liquid level monitoring and alarm instrument | |
| CN205029438U (en) | Regional efficiency data acquisition device | |
| CN204679781U (en) | Low power-consumption intelligent data collection station | |
| CN211856729U (en) | Multi-communication multifunctional three-phase intelligent electric energy meter | |
| CN205015121U (en) | Low -power consumption intelligence pressure transmitter | |
| CN105006888A (en) | Digital intelligent power monitoring system | |
| CN210052032U (en) | Well site sharing intelligent remote terminal control device based on wireless network | |
| CN209895153U (en) | Intelligent motor-pumped well control device | |
| CN205210161U (en) | Optical fiber temperature fault indicator | |
| CN210323236U (en) | Electric power data acquisition module with multi-sensor interface and multi-communication means | |
| CN202494721U (en) | Remote multiphase cost control electric energy meter | |
| CN202650220U (en) | Intelligent access equipment for Internet of Things | |
| CN112764387A (en) | Natural gas monitoring system for hot water machine room | |
| CN111650868A (en) | Micro-power consumption multifunctional integrated data acquisition unit | |
| CN205015115U (en) | Novel digital pressure transmitter | |
| CN215263711U (en) | Multi-point acquisition remote electric quantity information acquisition terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |