CN205719655U - A kind of minor amount of water quick analytical sampling system - Google Patents

A kind of minor amount of water quick analytical sampling system Download PDF

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Publication number
CN205719655U
CN205719655U CN201620692017.2U CN201620692017U CN205719655U CN 205719655 U CN205719655 U CN 205719655U CN 201620692017 U CN201620692017 U CN 201620692017U CN 205719655 U CN205719655 U CN 205719655U
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China
Prior art keywords
decompressor
connection end
minor amount
sampling system
switch valve
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Active
Application number
CN201620692017.2U
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Chinese (zh)
Inventor
李平
沈栋
韩琼
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Wujiang Messer Industrial Gas Co Ltd
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Wujiang Messer Industrial Gas Co Ltd
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Priority to CN201620692017.2U priority Critical patent/CN205719655U/en
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Abstract

This utility model relates to a kind of minor amount of water quick analytical sampling system, including switch valve, decompressor and water analyzer, described switch valve has the first connection end, the second connection end and the 3rd connects end, the first described connection end connects sample gas air inlet pipe, the second described connection end connects drying nitrogen air inlet pipe, the described decompressor described in the 3rd connection end connection, the described water analyzer described in decompressor connection.This utility model can be prevented effectively from the air impact on water analysis, it is achieved quickly analyzes;Effectively save sample gas consumption, improve the repeatability of analysis result.

Description

A kind of minor amount of water quick analytical sampling system
Technical field
This utility model relates to a kind of minor amount of water quick analytical sampling system.
Background technology
For the analysis of micro-moisture in gas, existing sampler, during connecting sample, can make air enter Entering sampler, the large quantity of moisture in air can together be brought into system by the entrance of air, thus need with the plenty of time and Sample gas could eliminate the impact of air, the most time-consuming but also effort;During analyzing micro-moisture, need to continue to lead to system Entering sample gas, such sample gas is consuming the most always, and analysis time is the longest, and the sample gas of consumption is the most;Additionally, the reproduction of analysis result Property is the most poor.
Summary of the invention
The purpose of this utility model is to provide a kind of minor amount of water quick analytical sampling system, efficiently solves trace in gas The difficult problem that the water analysis time is longer.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of minor amount of water quick analytical sampling system, including switch valve, decompressor and water analyzer, described switch valve Have the first connection end, the second connection end and the 3rd connects end, and the first described connection end connects sample gas air inlet pipe, described Second connects end connects drying nitrogen air inlet pipe, and the described decompressor described in the 3rd connection end connection, described decompressor is even Connect described water analyzer.
Preferably, when described switch valve is opened: described the first connection end, the second connection end and the 3rd connect end Connection;When described switch valve cuts out: described the first connection end, the 3rd connection end connect.
Preferably, described switch valve is MV3 switch valve.
Preferably, the pressure of the drying nitrogen that the described drying nitrogen air inlet pipe described in switch valve control is passed through is 1- 10Bar。
Preferably, described decompressor connects high pressure gauge and low-pressure meter.
Preferably, described decompressor is provided with relief valve.
Preferably, described decompressor is LE51 decompressor.
Preferably, the end of described sample gas air inlet pipe is provided with sample connection.
Owing to technique scheme is used, this utility model compared with prior art has the advantage that
This utility model can be prevented effectively from the air impact on water analysis, it is achieved quickly analyzes;Effectively save sample gas Consume, improve the repeatability of analysis result.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the present embodiment switch valve open mode;
Accompanying drawing 2 is the schematic diagram of the present embodiment switch valve closed mode.
Wherein: 1, switch valve;10, first connects end;11, second connects end;12, the 3rd connects end;2, decompressor;20、 High pressure gauge;21, low-pressure meter;22, relief valve;3, water analyzer;4, sample gas air inlet pipe;40, sample connection;5, drying nitrogen air inlet Pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
A kind of minor amount of water quick analytical sampling system, including switch valve 1, decompressor 2 and water analyzer 3, switch valve 1 with Decompressor 2 connects, and decompressor 2 is connected with water analyzer 3.In the present embodiment:
Switch valve 1 uses MV3 switch valve, has the first connection end 10, second and connects end 11 and the 3rd connection end 12, the One connects end 10 connects sample gas air inlet pipe 4, and second connects end 1 connects drying nitrogen air inlet pipe 5, and the 3rd connects end 12 connects and subtracts Depressor 2 is connected.It is that 5Bar(is by storage tank liquid nitrogen gas that switch valve 1 controls the pressure of the drying nitrogen that drying nitrogen air inlet pipe 5 is passed through Change, the driest, and continually).
Decompressor 2 connects to be had high pressure gauge 20 and low-pressure meter 21 and is provided with relief valve 22, and decompressor 2 uses LE51 to reduce pressure Device.
The end of sample gas air inlet pipe 4 is provided with sample connection 40.
As shown in Figure 1: in the case of not having sample gas detection, maintained switch valve 1 is opened, first connects end the 10, second connection End 11 and the 3rd connection end 12 connect, and the drying nitrogen of drying nitrogen air inlet pipe 5 output is divided into two-way, and a road continues through and subtracts Depressor 2 enters water analyzer 3, a road be full of sample gas air inlet pipe 4 with avoid air enter system, thus make water analyzer 3 Detected value is always held at the lowest level.Before sample gas water analysis, opening switch valve 1, drying nitrogen enters system, on the one hand Enter decompressor 2 and enter water analyzer 3, at the valve hickey on the one hand connected along sample gas air inlet pipe 4 blowback to gas cylinder, company Connecting gas cylinder joint, now only have drying nitrogen in whole system, air is isolated outside system.As in figure 2 it is shown, pass make and break Closing valve 1, first connects end the 10, the 3rd connection end 12 connects, and drying nitrogen does not enter back into system, drying nitrogen remaining in system May proceed to enter Moisture Meter 3, after nitrogen almost all to be dried enters water analyzer 3, open sample gas gas cylinder valve, sample gas is along sample Gas air inlet pipe 4 access switch valve 1 enters water analyzer 3 along systematic pipeline again after decompressor 2 reduces pressure, due to water analyzer 3 Detected value be always held at the lowest level, sample gas one enters water analyzer 3, just can obtain analysis result at once;Sample gas water After analyzing, close sample gas gas cylinder valve, after sample gas almost all remaining in system enters water analyzer 3, open switch Valve 1, makes drying nitrogen enter system, now sample gas gas cylinder and sample gas air inlet pipe 4 can be disconnected, then block with plug and take Sample joint 40.Owing to eliminating the air interference to sample gas, so having good repeatability during repetitive measurement.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow and is familiar with technique Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this. All according to this utility model spirit made equivalence change or modify, all should contain protection domain of the present utility model it In.

Claims (8)

1. a minor amount of water quick analytical sampling system, it is characterised in that: include switch valve, decompressor and water analyzer, institute The switch valve stated has the first connection end, the second connection end and the 3rd connects end, and the first described connection end connects sample gas and enters Trachea, the second described connection end connects drying nitrogen air inlet pipe, and described the 3rd connects the decompressor described in end connection, described Decompressor connect described in water analyzer.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: when described switch valve When opening: described the first connection end, the second connection end and the 3rd connect end connection;When described switch valve cuts out: institute The first connection end, the 3rd connection end stated connect.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described switch valve is MV3 switch valve.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described on-off valve control The pressure of the drying nitrogen that the drying nitrogen air inlet pipe described in system is passed through is 1-10Bar.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described decompressor is even It is connected to high pressure gauge and low-pressure meter.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described decompressor sets It is equipped with relief valve.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described decompressor is LE51 decompressor.
A kind of minor amount of water quick analytical sampling system the most according to claim 1, it is characterised in that: described sample gas air inlet The end of pipe is provided with sample connection.
CN201620692017.2U 2016-07-04 2016-07-04 A kind of minor amount of water quick analytical sampling system Active CN205719655U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620692017.2U CN205719655U (en) 2016-07-04 2016-07-04 A kind of minor amount of water quick analytical sampling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620692017.2U CN205719655U (en) 2016-07-04 2016-07-04 A kind of minor amount of water quick analytical sampling system

Publications (1)

Publication Number Publication Date
CN205719655U true CN205719655U (en) 2016-11-23

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CN201620692017.2U Active CN205719655U (en) 2016-07-04 2016-07-04 A kind of minor amount of water quick analytical sampling system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110455985A (en) * 2018-05-08 2019-11-15 中国石油天然气股份有限公司 The displacement apparatus of residual air in a kind of analysis system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110455985A (en) * 2018-05-08 2019-11-15 中国石油天然气股份有限公司 The displacement apparatus of residual air in a kind of analysis system

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