CN206741012U - One kind is based on quality formula rainfall gauge automatic calibrator - Google Patents

Abstract

It the utility model is related to one kind and be based on quality formula rainfall gauge automatic calibrator, using integrated distributed framework, it is made up of console and several calibrating terminal works platform cascades, the quality of water supply module reclaimed water is weighed using the electronic balance of periodic verification in real time, the quality for the water being delivered in water supply module in calibrating container is calculated, as quality standard value；By pure water density table for reference, the mass value for examining and determine container reclaimed water is scaled volume, divided by holds rain open area, obtains rainfall standard value；Using peristaltic pump to set the water that flow velocity will be examined and determine in container, tested rainfall gauge is all delivered to；By rainfall standard value compared with tested rainfall gauge indicating value, calibrating/calibration result is obtained.Technique effect is that by examining and determine various udometric automatic gauge, has a low comprehensive advantage of good performance, efficiency high, cost, and popularizing application prospect is very wide.

Description

One kind is based on quality formula rainfall gauge automatic calibrator

Technical field

A kind of rainfall gauge automatic calibrator is the utility model is related to, it is more particularly to a kind of automatic based on quality formula rainfall gauge Calibrating installation.

Background technology

Rainfall is one of main project of meteorological observation.At present, the rainfall gauge that China's Primary Climatological Stations use mainly wraps Include cylinder type rain gauge, siphon rainfall recorder, tipping-bucket rain-gauge, weighing type rain gauge etc., wherein tipping-bucket rain-gauge application It is the most extensive.Being restricted by observation procedure, rainwater splashes the extraneous factors such as mistake, evaporation and wind and easily causes rainfall observed result deviation, The process such as produce, transport, installing, using in rainfall gauge simultaneously and also exist and holding the mouth of a river tolerance, error that gets wet, starting error, non-aqueous Flat error, the general character errors such as error are inductively measured, therefore periodic calibration need to be carried out to rainfall gauge, to ensure the standard of its measurement result True property.

Currently, China mainly uses " capacity " formula Metrology Support scheme.Meteorological phenomena measurement technical body use " capacity ball " or " charger " is used as standard, and graduated cylinder, siphon, tipping bucket, the various forms of rainfall gauges such as weigh are examined and determine.Traditional capacity Ball rainfall gauge calibrating installation has the advantages that simple in construction, steady in a long-term, cost is cheap, but there is also manual operation error Greatly, operating efficiency is low, less robust, the problems such as function is single, raininess is non-constant.For capacity ball rainfall gauge calibrating installation Deficiency, domestic meteorological phenomena measurement technical body generally using the higher charger formula rainfall gauge calibrating installation of automaticity, but In actual use, there is also problems：First, there is volume error accumulation in single liquid feeding full scale only 50mL in calibrating Problem；Second, because liquid feeding is discontinuous, water flood operations need to be repeated, limit the operating efficiency of device to a certain extent；Third, Less because possessing the mechanism of corresponding calibrating/rated capacity, cost of tracing to the source is high, cycle length；Fourth, being limited by technical principle, error is come Source is more complicated, it is difficult to establishes effective technology and verifies means, the element task technical difficulty such as standard set-up is established, holding is high, work Work amount is big.Udometric laying and its current demand to measurement verification guarantee extensively, innovation, hair to rainfall gauge calibrating installation Exhibition and construction propose new demand.

The content of the invention

In view of the problem of prior art is present, the utility model provides a kind of based on quality formula rainfall gauge automatic Verification dress Put and calibration method, can realize to various udometric automatic Verification, calibrating installation is with using " integrated-distribution " formula frame Structure, using Labview graphic programming instruments, custom design, which goes out, a set of possesses automatic calibration, fault diagnosis, automatic production card A series of system of functions such as book, concrete technical scheme are that one kind is based on quality formula rainfall gauge automatic calibrator, including control Platform and several calibrating terminal works platforms, described console include Weighing module, water supply module, divide water pump, controller module, Serial server, control terminal drain module, wherein, Weighing module is again including the electronic balance of periodic verification, weighing container, water temperature Sensor and photoelectric liquid-level switch, controller module include industrial computer, relay serial ports controller, humiture collection device, opened again Powered-down source, water supply module include magnetic valve, water purifier, water storage barrel and supply-water pump, and described calibrating terminal works platform includes dividing water Valve, calibrating container, calibrating pump, data acquisition module, calibrating end drain module, it is characterised in that：By console and several inspections Determine terminal works platform by serial server cascade composition it is integrated-distributed structure/architecture, the controller module of console respectively with inspection Determine the shunt valve of terminal works platform, calibrating pump, data acquisition module unidirectionally connect, be detected rainfall gauge respectively with data acquisition module Block, calibrating end drain module are unidirectionally connected, and shunt valve is unidirectionally connected with reserved expansion interface, and Switching Power Supply is powered for the present apparatus； Console is connected as Weighing module and is bi-directionally connected with controller module, through dividing water pump, calibrating terminal works platform and control terminal draining Module unidirectionally connects, controller module respectively with water supply module, divide water pump, calibrating terminal works platform be unidirectionally connected, controller mould Block is bi-directionally connected with serial server, and water supply module is by Weighing module with dividing water pump to be unidirectionally connected；Terminal works platform is examined and determine to connect Shunt valve, calibrating container, calibrating pump, tested rainfall gauge is connected in unidirectionally to connect successively；Water supply module include magnetic valve, water purifier, Water storage barrel and supply-water pump, water storage barrel are connected through supply-water pump with water purifier, and water purifier is supplied water by magnetic valve to Weighing module.

Described divides water pump to use step motor type peristaltic pump, application traffic shaping modes.

Of the present utility model to have the technical effect that, measurement technology function admirable, transmission of quantity value uncertainty ratio is much better than 1:3, The uncertainty of measurement of verification result can be neglected；The error of the introducings such as manual operation, environment influence can be neglected；Calibration operation efficiency Height, rainfall, raininess automatically regulate and control；Standard, tested rainfall gauge automatic data collection, storage and processing；Record, certificate and report Announcement is automatically generated and printed；Freedom and flexibility are configured, can configure separate unit or more calibrating terminals, calibrating terminal also can independent operating； Communication interface has both wire/wireless communication function, can realize that the device is in Meteorological Field to various udometric automatic Verification Extensive use, automatic detection and the safeguard level of Meteorological Field will be greatly improved.

Brief description of the drawings

Fig. 1 is integrated-distributed structure/architecture figure of the present utility model；

Fig. 2 is that console of the present utility model connects block diagram；

Fig. 3 connects block diagram for calibrating terminal works platform of the present utility model；

Fig. 4 is water supply module connection figure of the present utility model；

Fig. 5 is Weighing module connection figure of the present utility model；

Fig. 6 is structure front view of the present utility model；

Fig. 7 is controller module top view of the present utility model；

Fig. 8 is structure axonometric drawing of the present utility model；

Fig. 9 is verifying process flow figure of the present utility model.

Embodiment

In order to further illustrate technological means and its effect that the utility model is taken, with reference to preferred embodiment And its accompanying drawing is described in further detail.

As shown in Fig. 1 ~ 8, a kind of rainfall automatic calibrator console 2 based on mass measurement and several calibrating terminals Workbench 6, described console 2 are connected as selecting electronics of the Sai Duolisi 6010-1CN precision electronic balances as periodic verification Balance 16 is located at bottom, is placed with weighing container 15 on the scale pan, has a dividing plate above weighing container 15, for installing Inlet and outlet water Pipe, cooling-water temperature sensor 14 and photoelectric liquid-level switch, dividing plate are fixed on rack, are not contacted with weighing container 15, ensure periodically inspection Fixed electronic balance 16 does not influence weighing result when weighing.

Water supply module 11 is mainly used in providing the purification water needed for calibration operation, is connected as water storage barrel 19 through supply-water pump 20 It is connected with water purifier 18, after the connection controller of magnetic valve 21 of water purifier 18 sends water supply order, supply-water pump 20 brings into operation, electromagnetism Valve 21 is opened, and the water in water storage barrel 19 is entered in water purifier 18 by supply-water pump 20, after filtering that water purification is straight by a two-way Three-way electromagnetic valve 21 enters 12 in weighing container, and the electronic balance 16 of periodic verification detects the mass change of water in real time, treats that water is added to After setting quality, supply-water pump 20 and magnetic valve 21 are simultaneously closed off, waterman completes.The sewage that water purifier 18 leaves after filtering Entered by sewage mouth in the pipeline of control terminal drain module 12, discharged outside calibrating installation.

The calibrating container 8 for dividing water pump 9 to be used for into calibrating terminal works platform 6 quantitatively send water.

Calibrating pump 7 is used to realize raininess control function, and the water examined and determine in container 8 is delivered into tested rainfall by setting flow velocity Rain container/sensor is counted, therefore uses the BT-300CA type step motor type peristaltic pumps of Jie Heng companies production, is selecting flexible pipe model Under the conditions of 25#, its range of flow is（0.05~500）ML/min can be realized（0.1~10）Mm/min raininess simulation. When progress 30mm rainfall calibratings divide water, often examine and determine container 8 plus the water time is not more than 2min, while meet to divide water and calibration operation.

Controller module 4 is used for the supply-water pump 9 supporting to calibrating installation, calibrating pump 7, shunt valve 10 etc. and carries out switch control System, at the same by humiture collection device 25 can gather cooling-water temperature sensor 14, numerical value, pass through the upper computer software in industrial computer 23 Calculate, water capacity is modified in real time.

When calibrating installation water supply module 11 is to weighing container 15 plus water level to photoelectric liquid-level switch 17, photoelectric level is opened After pass 17 touches liquid level, controller module 4 is transferred data to, passes through the host computer of the industrial computer 23 in controller module 4 Software, instruction is sent to relay serial ports controller 24, control water supply module 11 is closed into wetting system, prevents the electricity of periodic verification Sub- balance 16 crosses range, realizes the purpose of the electronic balance 16 of protection periodic verification；

Switching Power Supply 22 selects bright latitude _ SP-320-12 type Switching Power Supplies, is powered for control module 4 and corollary equipment Need；Industrial computer 23 uses Z155-2L-6C type fan-free industrial computers, for being used as master control platform, embeds supporting soft Part, by operating personnel by operating software, it is possible to examine and determine in real time tested equipment；Relay serial ports controller 24 uses The road serial ports relay control panel of KAC2116S types 16, for controlling the break-make of the switching value equipment such as supply-water pump 9, shunt valve 10；Temperature Humidity collector 25 uses AOSONG_YL-WD-2 type temperature and humidity acquisition modules, for ambient temperature and humidity, water temperature to be passed through Data are passed to industrial computer 23 by serial ports.

Serial server 3 is the extension serial communication interface quantity of industrial computer 23, realizes industrial computer 23 and divides water pump 9, calibrating The features/components such as pump 7, counter and serial ports output type are detected the communication connection between rain sensor, and use is network Distributed data acquisition solution, from 5650 types of Moxa NPort, the 16 mouthfuls of RS232/422/ protected with 2KV Phototube Couplings 485 serial servers easily transmit data and the system integration in serial ports and the network equipment.

Shunt valve 10 is used to divide the moisture that conveying comes of water pump 9 to be fitted in each calibrating container 8 in console 2, shunt valve The 10 ZD direct acting piston type two-bit triplet solenoid valve for water produced from Chongqing Dun Ming Co., Ltds, it uses direct acting dual Piston Valve core structure, valve element and valve body use 304 stainless steel makings, have movement response fast, corrosion resistance and good, reliability height etc. Feature.

Calibrating container 8 is custom component, is manufactured using the high boron use for laboratory glass material of high transparency, volume about 1.2L, energy Enough meet that 200mm holds calibrating needs of the rain mouth rainfall gauge when setting 30mm rainfall.The bottom of container 8 is examined and determine to design using V-type, it is interior Portion coats strong dewatering nano material, can reduce residual water error to greatest extent, improve the degree of accuracy of calibrating installation.

Pump 7 is examined and determine using with dividing the identical peristaltic pump of water pump 9, for realizing raininess control function, will be examined by setting flow velocity Water in constant volume device is delivered to tested rainfall gauge.

Data acquisition module 5 tests needs to meet to be detected rainfall gauge switching signal acquisition counter and tipping bucket poised state, From the establishment that embedded software is carried out based on the iHMI43 type Intelligent liquid crystal modulars that master chip is STM32F103, its work( Can count can display counting value（Maximum 99999）And impulse waveform and time twice recently, have count start and stop, count reset with And the control function such as remote lock.Data acquisition module（5）Led to by serial ports and the industrial computer 23 in controller module 4 News, the tested udometric data collected can be passed to industrial computer 23, realize data acquisition function.

Drainage system is made up of control terminal drain module 12 and calibrating end drain module 13.Calibrating end drain module 13 is used for Water after tested rainfall gauge is examined and determine collects, and is imported water discharge device by pipeline in the floor drain of laboratory；Control terminal is arranged Water module 12 is used for the sewage after water purifier 18 is filtered and imported water discharge device by pipeline in the floor drain of laboratory；Simultaneously Control terminal drain module 12 and calibrating end drain module 13 can be combined, the water of calibrating end drain module 13 passes through control terminal Drain module 12 is imported in the floor drain of laboratory in the lump.

As shown in figure 9, calibration method is as follows：

（One）Hand inspection modules are with the presence or absence of abnormal, it is ensured that clear water is filled in water butt 17, after confirmation is errorless, and inspection Electric on device, the opening power supply of controller module 4 is determined, into calibrating software；

（Two）Into calibrating software, input operation personal information, into self-check of device interface, device can be automatically performed to whole The communication self-test of body, after the completion of enter to examine and determine interface；

（Three）The accredited rainfall gauge relevant information of input, according to software prompt according to JJG（It is meteorological）005-2015《Automatic gas As tipping bucket rain gauge of standing》Code, whether the tested rainfall gauge outward appearance of first range estimation is qualified, then using supporting slide measure The tested rainfall gauge of measurement holds mouth of a river diameter, and the numerical value after measurement is inserted in corresponding form, after the completion of enter measurement error and examine Demarcation face；

（Four）Software can install the calibrating point automatic Verification of vertification regulation setting, and before calibrating, calibrating installation can enter automatically The overall profit pipe work of row, to ensure that calibrating installation pipeline interior conduit moistens, to reduce error, improves the degree of accuracy of calibrating；

（Five）After completing profit pipe work, calibrating installation measures error testing work, and each calibrating point is advised according to calibrating Range request is examined and determine three times；

（Six）After the completion of measurement error calibrating, record is detected rainfall gauge data message to software automatically, to be sought survival according to prompting Into probation redport；

（Seven）Corresponding office of province rainfall gauge calibration certificate masterplate for probation redport according to offer, calibration certificate is generated, is pressed Printing certificate is carried out according to prompting；

（Eight）Operating personnel can judge whether tested rainfall gauge is qualified, and it is qualified such as to judge, will examine and determine according to probation redport Rainfall gauge storage in case use；If judgement is unqualified, it is required that tested rainfall gauge depot repair.

Calibration operation is completed.

Principle

The chief technology that calibrating installation development need to solve is the accurate reproduction of rainfall value.According to calibrating installation development Index request：System can preset according to user or input in real time, by measuring and controlling water controller effluent characteristics, reproduction Accurate standard rainfall value is produced, rainfall control error criterion requirement is not more than ± 0.1mm.Dividing water pump 9 to calibrating terminal In calibrating container 8 when sending water, water quality real-time change in weighing container 15, the measurement knot of electronic balance 16 of accurate periodic verification Fruit output time interval is longer（1~2）S, and because the density of water is affected by temperature, rainfall accurately controls difficulty larger.

Problem is accurately controlled to solve rainfall, mainly takes following measures：

（One）Point water pump use step motor type peristaltic pump, application traffic shaping modes, while guarantee divides water efficiency, Rainfall control error is reduced as far as possible.When initial, point water pump is set as big flow pattern, divides water efficiency to improve, reduction divides water Time；When setting calibrating point corresponding mass close to rainfall, setting divides water pump 9 to be low discharge pattern, effectively reduces rainfall control and misses Difference.

（Two）Before dividing water, when calculating standard quality value corresponding to setting rainfall calibrating point, progress temperature adjustmemt processing.Pass through The measurement of cooling-water temperature sensor 14 weighs the temperature of component reclaimed water, looks into calculation《ITS90 international temperature scale pure water density table for reference》, obtain current At a temperature of water density value；Point value is examined and determine using rainfall and holds the product of rain open area and watertight angle value, as adding water quality Control targe value, further reduce rainfall control error.

Using " integrated-distribution " formula framework, it is made up of console 2 and several cascades of calibrating terminal works platform 6, controller Module 4 is used for centralized Control, and the parallel control to more set calibrating terminal works platforms 6 and Data Centralized Processing can be achieved；Calibrating is eventually Hold workbench 6 can complete independently rainfall value testing plus water process, gather the dry-reed tube switch amount letter of tested rainfall gauge output Breath etc..

The quality of the reclaimed water of water supply module 11 is weighed using the electronic balance 16 of periodic verification in real time, calculated in water supply module 11 The quality for the water being delivered in calibrating container 8, as quality standard value；By pure water density table for reference, the reclaimed water of container 8 will be examined and determine Mass value be scaled volume, divided by hold rain open area, obtain rainfall standard value；Held using peristaltic pump with setting flow velocity and will examine and determine Water in device 8, all it is delivered to tested rainfall gauge；By rainfall standard value compared with tested rainfall gauge indicating value, examined and determine/ Calibration result.

Claims (2)

1. one kind is based on quality formula rainfall gauge automatic calibrator, including console（2）With several calibrating terminal works platforms （6）, described console（2）Including Weighing module（1）, water supply module（11）, divide water pump（9）, controller module（4）, serial ports Server（3）, control terminal drain module（12）Wherein, Weighing module（1）Include the electronic balance of periodic verification again（16）, weigh Container（15）, cooling-water temperature sensor（14）And photoelectric liquid-level switch（17）, controller module（4）Include industrial computer again（23）, relay Device serial ports controller（24）, humiture collection device（25）, Switching Power Supply（22）, water supply module（11）Including magnetic valve（21）, it is net Hydrophone（18）, water storage barrel（19）And supply-water pump（20）, described calibrating terminal works platform（6）Including shunt valve（10）, calibrating hold Device（8）, calibrating pump（7）, data acquisition module（5）, calibrating end drain module（13）,

It is characterized in that：By console（2）With several calibrating terminal works platforms（6）Pass through serial server（3）Cascade composition Integrated-distributed structure/architecture, console（2）Controller module（4）Respectively with examining and determine terminal works platform（6）Shunt valve（10）、 Examine and determine pump（7）, data acquisition module（5）Unidirectional connection, be detected rainfall gauge respectively with data acquisition module（5）, calibrating end draining Module（13）Unidirectional connection, shunt valve（10）Unidirectionally it is connected with reserved expansion interface, Switching Power Supply（22）Powered for the present apparatus；Its Middle console（2）It is connected as Weighing module（1）With controller module（4）It is bi-directionally connected, through dividing water pump（9）, calibrating terminal works Platform（6）With control terminal drain module（12）Unidirectional connection, controller module（4）Respectively with water supply module（11）, divide water pump（9）、 Examine and determine terminal works platform（6）Unidirectional connection, controller module（4）With serial server（3）It is bi-directionally connected, water supply module（11）It is logical Cross Weighing module（1）With dividing water pump（9）Unidirectional connection；Examine and determine terminal works platform（6）It is connected as shunt valve（10）, calibrating container （8）, calibrating pump（7）, tested rainfall gauge unidirectionally connects successively；Water supply module（11）Including magnetic valve（21）, water purifier（18）, store Bucket（19）And supply-water pump（20）, water storage barrel（19）Through supply-water pump（20）With water purifier（18）It is connected, water purifier（18）Pass through electricity Magnet valve（21）To Weighing module（1）Supply water.

2. it is based on quality formula rainfall gauge automatic calibrator as claimed in claim 1, it is characterised in that：Described divides water pump （9）Using step motor type peristaltic pump, application traffic shaping modes.