CN201991516U - Intelligent leakage monitor and antitheft system of heat supply pipe network inspection well compensator - Google Patents

Abstract

An intelligent leakage monitor and antitheft system of a heat supply pipe network inspection well compensator mainly resolves the problem that an existing inspection well leakage monitoring method mainly depends on manual touring inspection and leakage points cannot be found out in time. The intelligent leakage monitor and antitheft system is characterized by further comprising a data acquisition module and a wireless transmitting module, the data acquisition module consists of a temperature signal acquiring and processing unit, a liquid level sensor and a valve antitheft switch, temperature signals acquired by the temperature sensor are outputted to a temperature signal input end of a central microprocessor after being amplified via a comparator and being converted into digital signals by an A/D (analog/digital) conversion module, signal output ends of the liquid level sensor and the valve antitheft switch are respectively connected to corresponding digital signal input ends of the central microprocessor, the wireless transmitting module consists of a serial input interface and a GPRS (general packet radio service) module, and the serial input interface realizes bidirectional signal transmission between the central microprocessor and the GPRS module. The intelligent leakage monitor and antitheft system can monitor leakage of the compensator at real time, and has an antitheft alarming function.

Description

Heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system

Technical field

The utility model relates to a kind of device that is used for the heating network monitoring on the oil field, relates to a kind of leakage to the heating network expansion loop specifically and carries out device for monitoring.

Background technology

Heating network can produce the thermal expansion elongation in the heating agent course of conveying, extend the thermal stress influence that produces to pipe network for eliminating because of thermal expansion, will add a kind of equipment that can offset its thermal stress in pipeline, and this equipment is exactly expansion loop.Expand with heat and contract with cold by the expansion loop adjusting between heat supply pipeline, to alleviate the thermal stress of pipe network inside, " shrinkage joint " on similar road and bridge.In general, expansion loop is to make with corrugated steel to be enclosed within after the ring-type in the steam on the pipe, stretches along with expanding with heat and contract with cold of steam pipe system, thereby guarantees the normal delivering vapor of pipe network.But, find that through using for a long time the back there are the following problems:, will embrittlement be difficult to realize again stretching after reaching application life because the flexible number of times of expansion loop is limited.If this moment, expansion loop was subjected to vertical external force, then be easy to impairedly, cause pipeline leakage.In addition, lawless people also can take place steal the situation that the valve of expansion loop causes pipeline leakage.But, also there is not a kind of device can in time detect this leakage in the prior art, when after the personnel of patrolling and examining are patrolling and examining, finding, often all caused tremendous loss.

Summary of the invention

In order to solve the prior art problem that proposes in the background technology, the utility model provides a kind of heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system, thereby whether this kind heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system can monitor expansion loop in real time by the relevant parameter that high-precision sensor is measured manhole and leak, and have avoided the generation of heavy losses.

The technical solution of the utility model is: this kind heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system, comprise central microprocessor and the power module that constitutes by the lithium battery group, described power module provides working power for described central microprocessor, its unique distinction is: described system also comprises a data acquisition module and a wireless transport module, and described data acquisition module is made of temperature signal collection and processing unit, liquid level sensor and valve anti-theft switch; Wherein, described temperature signal collection and processing unit are made up of temperature pick up, comparator and A/D modular converter, temperature signal that described temperature pick up collection is returned amplifies through comparator and the A/D modular converter converts the temperature signal input that exports described central microprocessor after the data signal to, and the signal output part of described liquid level sensor and valve anti-theft switch is connected to the corresponding digital signals input of described central microprocessor respectively; Described wireless transport module is made of serial input interface and GPRS module, and described serial input interface provides two-way signal transmission for described central microprocessor and GPRS module.

The utlity model has following beneficial effect: heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system are to measure the manhole relevant parameter by high-precision sensor, whether monitor expansion loop leaks, effective in order to obtain, reliable monitored data, the data acquisition module of the super low-power consumption that employing is made of the PIC microcontroller and constitute the ultra-low power consumption wireless transport module by the GPRS wireless module, these are in order to ensure the reliability service steady in a long-term of data acquisition, transmission course.This device has taken into full account the special circumstances of manhole when design, have low-power consumption, waterproof, characteristics such as the anti-electromagnetic-radiation interference performance is strong, can not be subjected to the electromagnetic interference of extraneous electronic equipment and produce abnormal operation, ensure the high reliability of device operation, can be useful for various abominable industrial environments.This device can be monitored the leakage situation of expansion loop in real time, has removed the trouble of manual inspection in the past from; Adopt temperature and liquid level sensor monitored in common leak condition, can guarantee the accurate monitoring that expansion loop is leaked; In addition, this device has super low-power consumption design, by lithium battery power supply, can continuous operation more than 6 months, and the GPRS flow is little, and the generation expense is few.In addition, the subsidiary cover valve anti-theft device of this device when the generation valve is stolen, can in time provide corresponding warning to controlling platform to particular problem, can make the corresponding management personnel make fast reaction.

Description of drawings

Fig. 1 is a composition schematic diagram of the present utility model.

Fig. 2 is the electrical schematic diagram of an embodiment of the utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

At first the formation of this device is summarized: this device as shown in Figure 1, comprise central microprocessor and the power module that constitutes by the lithium battery group, described power module provides working power for described central microprocessor, its unique distinction is: described system also comprises a data acquisition module and a wireless transport module, and described data acquisition module is made of temperature signal collection and processing unit, liquid level sensor and valve anti-theft switch; Wherein, described temperature signal collection and processing unit are made up of temperature pick up, comparator and A/D modular converter, temperature signal that described temperature pick up collection is returned amplifies through comparator and the A/D modular converter converts the temperature signal input that exports described central microprocessor after the data signal to, and the signal output part of described liquid level sensor and valve anti-theft switch is connected to the corresponding digital signals input of described central microprocessor respectively; Described wireless transport module is made of serial input interface and GPRS module, and described serial input interface provides two-way signal transmission for described central microprocessor and GPRS module.What Fig. 2 showed is a concrete technical scheme implementing aforementioned schemes.As shown in the figure, acquisition module adds corresponding comparator U6, U9, U14, U17 and digital regulation resistance U7, U10, U15, U18 by temperature pick up U5, U8, U13, U16, adds A/D converter etc. and partly constitutes.In the structure of this part, comparator designs for reducing power consumption, with the digital regulation resistance collaborative work.In addition, in the acquisition module except that leakage monitoring part, also have an antitheft monitoring part, leakage monitoring partly is to adopt a content gauge U11 and four temperature pick up U5, U8, U13, U16 that water level, tube wall temperature and the well temperature of water supply and backwater in the well are monitored in real time.Content gauge U11 is installed in the manhole bottom, and when expansion loop leaked, shaft bottom ponding caused the content gauge warning; Four temperature pick ups lay respectively at the expansion loop tube wall, wherein supply each one in backwater, i.e. temperature pick up U5, U8, and two temperature pick up U13, U16 in the well.Two temperature pick up U5, U8 on the expansion loop device are used to monitor supply and return water temperature, and this temperature and Surveillance center pass the supply and return water temperature of coming and compare, if temperature difference, thinks that expansion loop leaks less than the numerical value of regulation; Two temperature pick up U13, U16 in the well are used for monitoring and check well temperature, and this temperature and tube wall temperature compare, if temperature difference, can think also that expansion loop leaks less than regulation numerical value.Antitheft monitoring part is mainly monitored the unlatching situation of well lid by valve anti-theft switch U12, when well lid is opened, send alarm signal by GPRS to Surveillance center.GPRS communication module U2 is used for carrying out data communication with Surveillance center, sends warning message and receives the interior supply and return water temperature of pipe that Surveillance center sends.Central microprocessor U1 is used for the control data collection and data are handled.When system works, the voltage swing of data potentiometer is corresponding to the signal of telecommunication voltage of the non-leakage of expansion loop, MUC place idle condition at ordinary times, the GPRS module is in resting state, in order to economize on electricity, has only sensor and comparator work, the signal of telecommunication of sensor acquisition reaches comparator, compares with the voltage of data potentiometer, if less than the voltage of data potentiometer, think not have to leak and take place, need not trigger MCU, if, think to have leakage problem greater than the voltage of data potentiometer, comparator triggers MCU and carries out data collection and analysis, leak if judge expansion loop, MCU starts the GPRS wireless module, and alert data is sent to Surveillance center.

This device is considered the ambient influnence that leakage in the well, high temperature etc. are harmful to chip, therefore when implementing, all adopts the device that adapts to hot environment to build.Use waterproof, heat insulation material is done a cover protection rete to system circuit board, guarantees that it can normally work in well stably.In addition, because the difference of weather environment, the temperature of heat supply every day is difference to some extent also, and considers that from the angle of environmental protection and energy saving dynamic heat supply also is energy-conservation effective way.Therefore, this device can adopt the way of dynamic temperature monitoring to realize the real-time monitoring of well temperature.Concrete scheme is: central microprocessor can wake the GPRS module up in the set time of every day section, and by its receive Surveillance center every day at this moment between water temperature value in the new pipe sending out of section, central microprocessor is just determined the warning fiducial temperature of every day according to this temperature then, thereby realizes the function of dynamic temperature monitoring.

Claims (1)

1. heating network manhole expansion loop intelligence leakage monitoring and burglary-resisting system, comprise central microprocessor and the power module that constitutes by the lithium battery group, described power module provides working power for described central microprocessor, it is characterized in that: described system also comprises a data acquisition module and a wireless transport module, and described data acquisition module is made of temperature signal collection and processing unit, liquid level sensor and valve anti-theft switch; Wherein, described temperature signal collection and processing unit are made up of temperature pick up, comparator and A/D modular converter, temperature signal that described temperature pick up collection is returned amplifies through comparator and the A/D modular converter converts the temperature signal input that exports described central microprocessor after the data signal to, and the signal output part of described liquid level sensor and valve anti-theft switch is connected to the corresponding digital signals input of described central microprocessor respectively; Described wireless transport module is made of serial input interface and GPRS module, and described serial input interface provides two-way signal transmission for described central microprocessor and GPRS module.

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