CN207976574U - A kind of calibrating installation of lower range pure water conductivity instrument - Google Patents

A kind of calibrating installation of lower range pure water conductivity instrument Download PDF

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Publication number
CN207976574U
CN207976574U CN201820212270.2U CN201820212270U CN207976574U CN 207976574 U CN207976574 U CN 207976574U CN 201820212270 U CN201820212270 U CN 201820212270U CN 207976574 U CN207976574 U CN 207976574U
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China
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conductivity
container
temperature sensor
module
measurement probe
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CN201820212270.2U
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Inventor
孙银合
郭知明
魏树龙
李红亮
姚尧
张红杰
常子栋
白玉洁
杨佳
刘冬梅
王志鹏
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TIANJIN INSTITUTE OF METROLOGICAL SUPERVISON AND TESTING
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TIANJIN INSTITUTE OF METROLOGICAL SUPERVISON AND TESTING
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Abstract

The utility model is related to conductivity meter calibration detection apparatus fields, especially a kind of calibrating installation of lower range pure water conductivity instrument, include a container for accommodating verification liquid, the container inner hollow makes a seal chamber being isolated with external environment, there are inlet and liquid outlet in the both sides of the seal chamber respectively, one conductivity measurement probe is installed at the top of the container, the conductivity measurement probe stretches into seal chamber, a temperature sensor is installed at the top of the container of conductivity probe side, the test side of the temperature sensor is located at the temperature that detection check liquid is used in seal chamber, the conductivity measurement probe and temperature sensor are connected with a standard conductivity measuring device, the standard conductivity measuring device is used to handle the signal that conductivity measurement probe and temperature sensor export.

Description

A kind of calibrating installation of lower range pure water conductivity instrument
Technical field
The utility model is related to conductivity meter calibration detection apparatus field, especially a kind of lower range pure water conductivity instrument Calibrating installation.
Background technology
Water purification machine is a kind of usual means being used to prepare corresponding conductivity solution, is widely used in laboratory, scientific research In the mechanisms such as institutes.
The conductivity of water purification machine itself installation is usually used in the detection of the existing conductivity for preparing pure water for water purification machine Instrument carries out the detection of conductivity while preparing.But since the specification of the calibrating range of existing water purification machine is not related to 0- generally 100 μ S/cm, therefore, when being needed in experimentation using the pure water for being in the range or 0.01-18.25M Ω * cm range abilities, It can not determine whether the reading of the included conductivity meter of water purification machine is accurate, therefore other high-precision conductivity meters need to be coordinated to carry out Detection cannot be satisfied the requirement of pure water lower range detection.
In addition to this, it is single that the conductivity meter installed in water purification machine need to generally be removed to progress for the calibrating of existing water purification machine Solely calibrating, but such calibrating mode, it is not only complicated for operation also to cannot be satisfied the requirement that complete machine detection is carried out to water purification machine, therefore Accuracy is insufficient.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of reasonable for structure, complete machine calibrating can expire A kind of calibrating installation of lower range pure water conductivity instrument of sufficient lower range required precision.
The utility model is achieved through the following technical solutions:
A kind of calibrating installation of lower range pure water conductivity instrument, it is characterised in that:Include an appearance for accommodating verification liquid Box is set, the container inner hollow makes a seal chamber being isolated with external environment, and there are feed liquor in the both sides of the seal chamber respectively Mouthful and liquid outlet, a conductivity measurement probe is installed at the top of the container, which stretches into seal chamber It is interior, a temperature sensor is installed at the top of the container of conductivity probe side, the test side of the temperature sensor is located at The temperature of detection check liquid is used in seal chamber, the conductivity measurement probe and temperature sensor to be surveyed with a standard conductivity Amount device is connected, the signal which is used to export conductivity measurement probe and temperature sensor into Row processing.
Moreover, the standard conductivity measuring device includes conductivity measurement module, temperature correction module, central processing mould Block and data transmission module, the conductivity measurement module are connected with conductivity measurement probe, the temperature correction module with Temperature sensor is connected, and the signal output end of the conductivity measurement module and temperature correction module is connected with central processing module It connects, the signal output end of the central processing module is connected with data transmission module, and the data transmission module is used for and outside Control storage device carries out data transmission.
Moreover, the inlet is made in container side lower end, the container other side upper end make it is described go out liquid Mouthful, an agitating device is installed in the middle part of the seal chamber of the container.
Moreover, the container middle top makes a through-hole, for installing the conductivity measurement probe in the through-hole, Sealing ring is embedded between the outer rim and through-hole inner edge of the conductivity measurement probe.
The advantages of the utility model and good effect are:
1, when the utility model is used, container is for the accommodating verification liquid made by water purification machine, uses and external rings The sealing cavity configuration of border isolation, can meet the calibrating requirement of lower range, effectively reduce empty contacted with gas pure water air and to measurement And pure water the influence brought, improves calibration accuracy, and standard conductivity measuring device is used to examine and determine the verification liquid in container, i.e., Machine examines and determine the conductivity in same parity liquid jointly, to by the reading of the result of standard conductivity measuring device and water purification machine into Row compares, and completes the calibration for water purification machine, you can the requirement for meeting the calibrating of water purification machine complete machine can also realize water purification machine for low The calibrating requirement of range;
2, when the utility model is used, the signal that conductivity measurement module is used to export conductivity probe is handled simultaneously Fed back in central processing module, temperature correction module for temperature sensor output signal and it is detected Temperature compensates, central processing module for handling corresponding signal, and will treated signal by data transmission module, It is transmitted to external slave computer or storage device;
3, when the utility model is used, container inlet and liquid outlet shift to install so that the internal volume of container It is especially big relative to inlet flow rate, always ensure that liquid is stablized in internal flowing, agitating device is then used for verification liquid progress Stirring ensures that the temperature of verification liquid is as uniform as possible, is influenced caused by being further reduced non-uniform temperature by adjusting rotating speed;
4, in the utility model, conductivity measurement probe is located in the through-hole of container middle top, to ensure conductance The inner wall far from container, sealing ring not being sealed through-hole then for positioning conductivity probe, carrying rate probe as possible Rise the accuracy of calibrating.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the module diagram of the utility model.
Specific implementation mode
It elaborates to the utility model below by embodiment, the embodiment is illustrative instead of limiting , protection scope of this utility model cannot be limited by this.
A kind of calibrating installation of lower range pure water conductivity instrument, the innovation of the utility model are, including one is used to house The container 5 of liquid is verified, the container inner hollow makes a seal chamber being isolated with external environment, the both sides of the seal chamber There are inlet 7 and liquid outlet 3 respectively, a conductivity measurement probe 8 is installed at the top of the container, which visits Head stretches into seal chamber, and a temperature sensor 4, the temperature sensor are equipped at the top of the container of conductivity probe side Test side be located at the temperature that detection check liquid is used in seal chamber, the conductivity measurement probe and temperature sensor are with one The terminals 2 of standard conductivity measuring device 1 are connected, the standard conductivity measuring device be used for conductivity measurement probe and The signal of temperature sensor output is handled.
In the present embodiment, the standard conductivity measuring device includes conductivity measurement module, temperature correction module, center Processing module and data transmission module, the conductivity measurement module are connected with conductivity measurement probe, the temperature correction Module is connected with temperature sensor, signal output end and the central processing mould of the conductivity measurement module and temperature correction module Block is connected, and the signal output end of the central processing module is connected with data transmission module, and the data transmission module is used for Carry out data transmission with outside control storage device.
In the present embodiment, the inlet is made in container side lower end, which makes institute Liquid outlet is stated, an agitating device 6, the agitating device preferred magnet rotor stirring dress are installed in the middle part of the seal chamber of the container It sets.
In the present embodiment, the container middle top makes a through-hole, is surveyed in the through-hole for installing the conductivity Amount probe, is embedded with sealing ring 9 between the outer rim and through-hole inner edge of the conductivity measurement probe.
The use process of the utility model:
When the utility model is used, it is imported in container by pure water prepared by water purification machine, uses standard conductivity to survey later The amount device pure water in container is detected, and standard conductivity measuring device is obtained data and water purification machine itself Data are compared, to realize the calibration to water purification machine.
When the utility model is used, container is for the accommodating verification liquid made by water purification machine, uses and external environment The sealing cavity configuration of isolation can meet the calibrating requirement of lower range, effectively reduce empty contacted with gas pure water air and to measurement band And water purification machine the influence come, improves calibration accuracy, and standard conductivity measuring device is used to examine and determine the verification liquid in container, i.e., Conductivity in common calibrating same parity liquid, to carry out the reading of the result of standard conductivity measuring device and water purification machine Compare, complete the calibration for water purification machine, you can the requirement for meeting the calibrating of water purification machine complete machine can also realize that water purification machine is directed to low amounts The calibrating requirement of journey;Standard conductivity device can carry out comparing and recording in real time with the conductivity meter on water purification machine, improve school Accurate precision;Standard conductivity device can be by tracing to the source to unit dosages such as metering institutes of China, it is ensured that precision.

Claims (4)

1. a kind of calibrating installation of lower range pure water conductivity instrument, it is characterised in that:Including one for the accommodating of accommodating verification liquid Box, the container inner hollow make a seal chamber being isolated with external environment, and there are inlet in the both sides of the seal chamber respectively And liquid outlet, a conductivity measurement probe is installed at the top of the container, which stretches into seal chamber, One temperature sensor is installed at the top of the container of conductivity probe side, the test side of the temperature sensor is located at sealing Intracavitary is used for the temperature of detection check liquid, and the conductivity measurement probe and temperature sensor, which are measured with a standard conductivity, to be filled It sets and is connected, at the signal which is used to export conductivity measurement probe and temperature sensor Reason.
2. a kind of calibrating installation of lower range pure water conductivity instrument according to claim 1, it is characterised in that:The standard Conductivity measuring apparatus includes conductivity measurement module, temperature correction module, central processing module and data transmission module, described Conductivity measurement module is connected with conductivity measurement probe, and the temperature correction module is connected with temperature sensor, the electricity Conductance measurement module and the signal output end of temperature correction module are connected with central processing module, the letter of the central processing module Number output end is connected with data transmission module, and the data transmission module is used for and external control storage device carries out data biography It is defeated.
3. a kind of calibrating installation of lower range pure water conductivity instrument according to claim 2, it is characterised in that:It is described accommodating The inlet is made in box side lower end, which makes the liquid outlet, the seal chamber of the container Middle part is equipped with an agitating device.
4. a kind of calibrating installation of lower range pure water conductivity instrument according to claim 2, it is characterised in that:It is described accommodating Box middle top makes a through-hole, for installing the conductivity measurement probe in the through-hole, the conductivity measurement probe Sealing ring is embedded between outer rim and through-hole inner edge.
CN201820212270.2U 2018-02-07 2018-02-07 A kind of calibrating installation of lower range pure water conductivity instrument Active CN207976574U (en)

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CN201820212270.2U CN207976574U (en) 2018-02-07 2018-02-07 A kind of calibrating installation of lower range pure water conductivity instrument

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Application Number Priority Date Filing Date Title
CN201820212270.2U CN207976574U (en) 2018-02-07 2018-02-07 A kind of calibrating installation of lower range pure water conductivity instrument

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CN207976574U true CN207976574U (en) 2018-10-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283348A (en) * 2020-10-22 2021-01-29 陕西省计量科学研究院 Standard conductivity solution sealing method for preventing carbon dioxide from dissolving in water
CN113295196A (en) * 2021-05-28 2021-08-24 东华大学 Three-in-one device for filtering equipment and calibration method thereof
CN113866699A (en) * 2021-09-30 2021-12-31 广州赛宝计量检测中心服务有限公司 Calibration device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283348A (en) * 2020-10-22 2021-01-29 陕西省计量科学研究院 Standard conductivity solution sealing method for preventing carbon dioxide from dissolving in water
CN113295196A (en) * 2021-05-28 2021-08-24 东华大学 Three-in-one device for filtering equipment and calibration method thereof
CN113866699A (en) * 2021-09-30 2021-12-31 广州赛宝计量检测中心服务有限公司 Calibration device
CN113866699B (en) * 2021-09-30 2024-06-11 广州赛宝计量检测中心服务有限公司 Calibrating device

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