CN201364389Y - Intelligent measuring instrument of groundwater seepage velocity - Google Patents

Abstract

An intelligent measuring instrument of groundwater seepage velocity comprises a probe and intelligent terminal equipment. The probe comprises measuring/controlling components, a source throwing device and a communication interface, the measuring/controlling components comprise a Na I crystal, a photoelectric electron multiplier tube and a control circuit, and the photoelectric electron multiplier tube, the source throwing device and the communication interface are connected with the control circuit respectively; the probe is connected with a Bluetooth wireless communication device through the communication interface, and the Bluetooth wireless communication device is connected with the intelligent terminal equipment in a Bluetooth communication manner. The utility model has the advantages of high measuring accuracy and operating efficiency, which reduces the usage of radioactive source to a great degree, therefore not only the environment is effectively protected, the harm of the radiation on human being is reduced. A probe interface is taken out of the comprehensive design of the probe, which ensures effectively the safe and stable working of the instrument in the well. The symmetric source outputting design of the source throwing device can meet the purpose of uniform source throwing. The wireless control based on the Bluetooth technology and the application of portable equipment simplify the equipment and is easier for the field operation.

Description

Groundwater seepage flow velocity intelligent measuring apparatus

Technical field

The utility model belongs to the groundwater dynamics field of measuring technique, relates to a kind of groundwater seepage Flow speed measurer.

Background technology

Measurement for the groundwater seepage flow velocity, its measuring method is to drop into radioactive source in well logging, by ray sensing element recording ray intensity, measure the radiation intensities in the different well loggings constantly after, utilize different internal source intensity and the some dilution theorems of constantly logging well to try to achieve the groundwater seepage flow velocity.Use always in the prior art and ooze system as the survey of sensing element based on Geiger tube.Geiger tube according to ray to ionisation of gas effect make, common structure is to be negative electrode with the tinsel in airtight glass tube, is anode with the crown cap at the other end of glass tube, is full of inert gas in the glass tube.In ray enters glass tube, can make inert gas generation ionization, produce transient pulse voltage, therefore can be according to the number of times recording ray intensity that produces pulse voltage in the certain hour.For the groundwater seepage flow rate measuring device that utilizes Geiger tube as the ray sensing element, for measuring the radiation intensity in the well logging, at first ray must penetrate glass tube; Next ray palpus ionization inert gas is with the generation pulse voltage, so its work efficiency is lower.Simultaneously, the energy loss when entering Geiger tube in order to reduce ray, glass tube walls is all extremely thin, and is very easily broken, causes the damage of instrument easily.Moreover, in the existing groundwater seepage flow rate measuring device, probe is divided into detection, circuit control, throws the part of mutual isolation such as source device, there are a plurality of seams all to need to do encapsulation process, the seal process complexity, and there is place sealing to go wrong and all can causes systemic breakdown, easily bringing probe to leak and problem such as can't work; Throwing source device adopts single hole to go out source structure, causes the phenomenon of throwing source inequality easily.In addition, existing measurement mechanism instrument heaviness is carried very inconvenience, is not easy to field work.

Summary of the invention

The purpose of this utility model is to provide a kind of groundwater seepage flow velocity intelligent measuring apparatus, can overcome above-mentioned survey and ooze the defective of system based on the Geiger tube radiation transducers, solve existing equipment inefficiency, measuring accuracy and problems such as reliability is low, stability of instrument and portable difference, reduce the use of radioactive source simultaneously, be a kind of safe, reliable, easy and simple to handle and be easy to carry, can guarantee the groundwater seepage flow velocity intelligent measuring systems of measuring accuracy again.

Technical solution of the present utility model is as follows:

A kind of groundwater seepage flow velocity intelligent measuring apparatus, comprise probe and intelligent terminal, it is characterized in that: described probe comprises measurement/Control Component, throws source device and communication interface, measurement/Control Component comprises NaI crystal, photomultiplier and control circuit, the NaI crystal places the photomultiplier front end, and photomultiplier is connected with control circuit; Throwing source device and communication interface are connected with control circuit in the measurement/Control Component respectively; Described probe is connected with the blue tooth wireless communication device by communication interface, and the blue tooth wireless communication device is connected with intelligent terminal in the bluetooth communication mode.

Intelligent measuring apparatus of the present utility model is measured the method for groundwater seepage flow velocity, be in well logging, to drop into radioactive source, the method in throwing source is a bit thrown and two kinds of methods of whole hole mark, transmitted intensity by measurement/Control Component record radioactive source, be that the NaI crystal is subjected to rays excite and sends photon, photomultiplier receives photon and amplifies, and control circuit is determined transmitted intensity according to the photomultiplier change in voltage; After determining the radiation intensity in the different well loggings constantly, data are sent to intelligent terminal, preserve and handle by intelligent terminal by the blue tooth wireless communication device.

In described measurement/Control Component, NaI crystal, photomultiplier and control circuit all place probe inner, are designed to fixedly connected and the formation one-piece construction.

Control circuit in described measurement/Control Component is connected with communication interface with photomultiplier, throwing source device, can be made up of single chip microcomputer system, and the operation of throwing source, DATA REASONING, collection and communication are controlled by single-chip microprocessor in the probe.

The inner power supply that is provided with of described probe provides probe required electric energy, and provides photomultiplier work required high pressure.

Be connected by communication cable between described communication interface and the blue tooth wireless communication device, as the 2 core cables that adopted among the embodiment, cable can bear the pulling force of 50kg, and control circuit sends to the blue tooth wireless communication device by the RS-485 communication modes with data.

The data that probe is gathered are sent to intelligent terminal by communication interface by the blue tooth wireless communication device, and intelligent terminal is preserved the line data of going forward side by side and handled, and device is controlled.Described intelligent terminal is the intelligent terminal that has operating system, as microcomputer or notebook computer, is preferably based on the portable equipment of inline operations system.Comprise on the described intelligent terminal functional structure and throw source module, measurement module and data processing module.Wherein, throwing the source module major function is to start/close throwing source device; The measurement module major function starts/closes measurement/Control Component, and reception/preservation sends to the measurement data of intelligent terminal system through bluetooth; The data processing module major function is that the data that processing receives are exported flow speed value and flow velocity with measurement results such as change in depth figure.

Except that adopting existing various throwings source device, measuring instrument of the present utility model also carries out two source outlet optimal design to throwing the source device, reaches the purpose of water body in the uniform labelling well logging in the mode in symmetry throwing source.Described throwing source device is divided into the power cavity of isolation and throws the chamber, source, and power cavity is connected by interlock equipment with throwing chamber, source, motor-driven interlock equipment work in the power cavity, and interlock equipment drives chamber, throwing source internal propeller and rotates; At two throwing sources of location arrangements mouth of throwing chamber, source symmetry.Starter motor drives the interior disk rotation of power cavity during the throwing source, throws chamber, source internal propeller and rotates under interlock equipment drives, and the effect of being under pressure of the interior radioactive source of throwing source cavity goes out the source from the source outlet of symmetry, realizes the symmetrical throwing of two source outlets source side formulas.

Groundwater seepage flow velocity intelligent measuring apparatus of the present utility model, photomultiplier is sensitiveer than Geiger tube radiation transducers, and measuring accuracy is higher, uses a small amount of radioactive source can finish groundwater velocity and measures; The instrument high efficiency can reduce the use amount of radioactive source, and the not only more effective environment of having protected has also reduced the damage of ray to human body simultaneously.The global design of measurement and control circuit on the probe designs, reduced probe interface, greatly reduce the probability of instrument probe water inlet, more realized only utilizing the intelligent terminal that has operating system to replace the pattern that instrument container in the prior art adds notebook computer, simplified instrument and equipment greatly, improve the portability of groundwater seepage flow velocity intelligent measuring systems, be easier to operation in the open air.The two source outlets design of throwing source device, the mode of throwing the source by symmetry reaches the purpose of water body in the uniform labelling well logging, and measurement data is more reliable.In a word, the utility model can improve the instrument work efficiency, reduces the use of radioactive source, improves the safe reliability and the portability of instrument.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.Protection domain of the present utility model does not exceed with embodiment, but is limited by the scope of claim.

Description of drawings

Fig. 1 is the modular structure synoptic diagram of popping one's head in the utility model

Fig. 2 is the inner structure synoptic diagram of popping one's head in the utility model

Fig. 3 is the functional block diagram of intelligent terminal in the utility model

Fig. 4 is the work synoptic diagram that the utility model is used for field survey

Fig. 5 is a throwing source device structural representation

Among the figure: the 1st, the measurement/Control Component, the 2nd in the probe, NaI crystal, the 3rd, photomultiplier, the 4th, control circuit, the 5th, power supply, the 6th, throwing source device, the 7th, communication interface, the 8th, communication cable, the 9th, wireless blue tooth communication device, the 10th, intelligent terminal, the 11st, stratum, the 12nd, well logging, the 21st, power cavity, the 22nd, chamber, throwing source, the 23rd, motor, the 24th, interlock equipment, 25, the 26th, source outlet, the 27th, screw propeller.

Embodiment

A kind of groundwater seepage flow velocity intelligent measuring apparatus, comprise probe, blue tooth wireless communication device 9 and intelligent terminal 10, communication interface 7 usefulness, 2 core communication cables 8 (cable can bear the pulling force of 50kg) on the probe are connected with blue tooth wireless communication device 9, and probe and intelligent terminal 10 carry out communication and exchanges data by blue tooth wireless communication device 9.

As Fig. 1 and Fig. 2, probe comprises measurement/Control Component 1, throws source device 6 and communication interface 7.Its structure is that the measurement/Control Component 1 employing NaI crystal 2 in the probe is a radiation transducers, and the NaI crystal 2 is fixed on photomultiplier 3 fronts; Control circuit 4 in the measurement/Control Component is a Single Chip Microcomputer (SCM) system, and photomultiplier 3 links to each other with control circuit 4 and is fixed on the circuit board of control circuit 4; Therefore the NaI crystal 2, photomultiplier 3 is fixedlyed connected with control circuit 4 and form one-piece construction.Throwing source device 6 and communication interface 7 are connected with control circuit 4 in the measurement/Control Component 1 again.Power supply 5 provides the working power of probe, and wherein the high pressure of photomultiplier 3 work is formed the direct current conversion through processes such as inversion, amplification and rectifications by power supply 5, and power supply 5 is just connected when probe places in the well logging automatically by mercury cut-off control.

The principle of work of probe is, control circuit 4 control probes will be thrown the radioactive source injection well logging in the source device 6 and start and measure and image data, the NaI crystal 2 is subjected to rays excite and sends photon, photomultiplier 3 receives photon and signal is amplified, control circuit 4 reads the voltage signal of photomultiplier 3 outputs and determines transmitted intensity, control circuit 4 control communication interfaces 7 send to blue tooth wireless communication device 9 by the RS-485 communication modes with data with the data of gathering, and send to intelligent terminal 10 by blue tooth wireless communication device 9 with the transmission mode of wireless blue tooth.

As Fig. 3, intelligent terminal realizes control and the data processing of measuring, and the portable equipment for based on embedded windowsmobile system mainly comprises three modules: throw source module, measurement module, data processing module.Throw source module to be responsible for starting/close throwing source device.Measurement module is used to measure the different inner rays intensity of constantly logging well, and can relevant parameter be set according to field condition, and start/close and measure and reception/preservation measurement data.Data processing module mainly carries out the post-processed of data, at first according to measurement data and relevant parameter calculating output groundwater seepage flow velocity is set, and output is along the change in flow figure of depth-logger direction.

As Fig. 4, described intelligent measuring apparatus is used for actual measurement.11 borings form well logging 12 on the stratum before measuring, and the communication interface 7 on will pop one's head in communication cable 8 is with after blue tooth wireless communication device 9 is connected, probe is put into logged well 12, send instructions to control circuit 4 by intelligent terminal 10 and control the throwing source and the measurement of popping one's head in.

Above-mentioned intelligent measuring apparatus, the throwing source device that adopts in the probe are designed to two source outlets, as shown in Figure 5.The long 150mm of throwing source device structure, diameter 38mm throws the source device and is divided into the power cavity 21 of isolation and throws chamber, source 22; Motors 23 drive interlock equipment 24 in the power cavity 21, and interlock equipment 24 is the disk of arranged adjacent and a pair of embedded magnet that is parallel to each other, and it drives the screw propeller 27 in chamber, throwing source 22; At two source outlets of location arrangements 25,26 of throwing chamber, source 22 symmetries.After will throwing source device 6 and fill with clear water, inject radioactive source.Interlock equipment in the starter motor 23 drive power cavities 21 are thrown chamber, source 22 internal propellers 27 and are rotated under interlock equipment drives during the throwing source, and the radioactive source water body effect of being under pressure in the cavity of throwing source goes out the source from the source outlet 25,26 of symmetry, thereby realizes symmetrical throwing source.

Carry out radiation intensity with described intelligent measuring apparatus and measure, and compare with existing instrument.The experiment timing was a count cycle in 1 second, and 15 seconds tale time, being recorded in passive respectively is promptly to have under the radioactive source state with active under the state of nature, the counting rate of existing instrument counting rate and intelligent measuring apparatus of the present utility model.

Experimentation is under the state of nature, will have instrument and the utility model respectively now and be placed on indoorly, and does not have any radioactive source and disturbs, and notes the solar radiation particle intensity under the identical time cycle.

Have that experimentation is under the radioactive source state, successively same radioactive source and existing instrument and the utility model are placed on indoorly, and distance equates between radioactive source and the instrument, under the identical cycle, writes down activity respectively.

Experimental data is as shown in table 1:

Table 1 contrast test data

Evidence is no matter under state of nature or having under the radioactive source effect, all obviously existing instrument counting rate height of intelligent measuring apparatus counting rate of the present utility model, and visible the utility model can improve the work efficiency of instrument greatly.Under the same condition; intelligent measuring apparatus of the present utility model uses a small amount of radioactive source can obtain the effect that existing instrument uses a large amount of relatively radioactive sources just can reach; therefore environment and experimenter's safety has been protected in the utility model use that can save radioactive source greatly.

Claims (10)

1, a kind of groundwater seepage flow velocity intelligent measuring apparatus, comprise probe and intelligent terminal, it is characterized in that: described probe comprises measurement/Control Component, throws source device and communication interface, measurement/Control Component comprises NaI crystal, photomultiplier and control circuit, the NaI crystal places the photomultiplier front end, and photomultiplier is connected with control circuit; Throwing source device and communication interface are connected with control circuit in the measurement/Control Component respectively; Described probe is connected with the blue tooth wireless communication device by communication interface, and the blue tooth wireless communication device is connected with intelligent terminal in the bluetooth communication mode.

2, intelligent measuring apparatus according to claim 1 is characterized in that in described measurement/Control Component, and NaI crystal, photomultiplier and control circuit are fixedlyed connected and formed one-piece construction and place probe inner.

3, intelligent measuring apparatus according to claim 1 is characterized in that the control circuit in described measurement/Control Component is a single chip microcomputer system.

4, intelligent measuring apparatus according to claim 1 is characterized in that being connected by communication cable between described communication interface and the blue tooth wireless communication device.

5, intelligent measuring apparatus according to claim 1 is characterized in that intelligent terminal comprises throwing source module, measurement module and data processing module.

6, intelligent measuring apparatus according to claim 5 is characterized in that throwing source module and is used to start/closes throwing source device.

7, intelligent measuring apparatus according to claim 5, it is characterized in that measurement module be used to start/close measurement/Control Component, reception/preservation sends to the measurement data of intelligent terminal through the blue tooth wireless communication device.

8, intelligent measuring apparatus according to claim 5 is characterized in that data processing module is used for data processing and exports measurement result.

9, intelligent measuring apparatus according to claim 1, it is characterized in that described throwing source device is divided into the power cavity of isolation and throws the chamber, source, power cavity is connected by interlock equipment with throwing chamber, source, motor-driven interlock equipment work in the power cavity, and interlock equipment drives chamber, throwing source internal propeller and rotates; At two source outlets of location arrangements of throwing chamber, source symmetry.

10, intelligent measuring apparatus according to claim 1 is characterized in that intelligent terminal is based on the portable equipment of embedded windows mobile system.

Images