CN202845386U - Flow system for seal pipeline forward and reverse cleaning - Google Patents

Flow system for seal pipeline forward and reverse cleaning Download PDF

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Publication number
CN202845386U
CN202845386U CN 201220503376 CN201220503376U CN202845386U CN 202845386 U CN202845386 U CN 202845386U CN 201220503376 CN201220503376 CN 201220503376 CN 201220503376 U CN201220503376 U CN 201220503376U CN 202845386 U CN202845386 U CN 202845386U
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connector
mini
way connector
links
sampling
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CN 201220503376
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李洪盛
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BEIJING BEIFEN TIANPU INSTRUMENT TECHNOLOGY Co Ltd
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BEIJING BEIFEN TIANPU INSTRUMENT TECHNOLOGY Co Ltd
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Abstract

The utility model relates to a flow system for seal pipeline forward and reverse cleaning. A carrier gas source, a first two-way connector, a balance method ventilation electromagnetic valve and a four-way connector are connected in sequence, other three connecting ports are respectively connected with a pressure sample introduction unit, a headspace sample introduction unit and a first three-way connector, the headspace sample introduction unit comprises a headspace electromagnetic valve, a first small three-way connector, a quantifying pipe and a second small three-way connector, a sample introduction electromagnetic valve and a third small three-way connector in sequence in a connecting mode, the first small three-way connector is connected with a sample bottle, the second small three-way connector is connected with an emptying unit, and the third small three-way connector is connected with a back flushing electromagnetic valve. The first three-way connector is respectively connected with the back flushing electromagnetic valve and the sample introduction electromagnetic valve, and the emptying unit comprises an air-resistor, a quantifying sampling electromagnetic valve and a third two-way connector. The flow system for the seal pipeline forward and reverse cleaning is fast in cleaning speed, good in cleaning effect, easy to operate, and convenient to use, and the difficult problem that analysis and detection are interfered by residual sample components in a sample conveying pipeline system of a headspace sample introduction device is solved.

Description

A kind of to the forward and reverse cleaning process of sealing pipeline system
Technical field
The utility model relates to a kind of gas circuit pipe-line system, is specifically related to a kind of cleaning process system that sealing pipeline is adopted simultaneously forward and oppositely combines.
Background technology
Head-space sampler is that analyzed test sample is carried out the extremely useful equipment of pre-treatment, it and gas chromatograph, during gas one matter combined instrument coupling, sample treatment in the fields such as chemical pharmacy, medical and health, petrochemical industry, fine chemistry industry, food processing, environmental monitoring, forensic identification provides strong means, time-consuming, bothersome, expensive trouble when having saved the artificial treatment sample and loaded down with trivial details, and can greatly improve automatization level, and improve detection speed, improve analysis precision.Therefore, in various scientific researches, college teaching, biochemistry is widely used in the life science.But the technological difficulties that must solve in application are after single injected sampling is analyzed before how solving, and remain in the interference that sample residue component is analyzed rear single injected sampling in the pipeline.
In the market in the like product of head it off, mainly contain following several purge mode: the one, only adopt the method (sample introduction is identical with the mobile direction of purge gas) of gas forward purge namely just blowing method, just blowing law limitation and be the sample introduction needle of injector must pull out from the chromatograph vaporizer, has brought trouble to operation.The 2nd, only adopting the direction (sample introduction and purge gas flow opposite direction) of reverse purge is backblowing, and the backblowing defective is that difficulty accomplishes that whole process cleans.The 3rd, only adopting a method that vacuumizes to clean is the negative pressure cleaning method, requires height but the defective of this method is hermetically-sealed construction to gas circuit pipeline junction, increase again a vavuum pump, and difficulty accomplishes that gas circuit is carried out whole process cleans.
The utility model content
The purpose of this utility model is for deficiency of the prior art, provide a kind of cleaning speed fast, cleaning performance is good, simple to operate, easy to use to the forward and reverse cleaning process of sealing pipeline system, solve the technical barrier that system residual sample component in head-space sampler sample conveying tube road disturbs analyzing and testing.
For finishing above-mentioned purpose, the technical solution adopted in the utility model is: a kind of to the forward and reverse cleaning process of sealing pipeline system, its carrier gas source, first liang of logical connector, balancing method AVSV Air Vent Solenoid Valve, four-way connector connect successively, and in addition three interfaces of described four-way connector are connected with pressurization sample injection unit, headspace sampling unit, the first three-way connector respectively; Described pressurization sample injection unit comprises the second three-way connector, pressure maintaining valve, pressurization AVSV Air Vent Solenoid Valve and the second liang of logical connector that connects successively, and described the second three-way connector is connected with Pressure gauge, and described second liang of logical connector is connected with out-source gas; Described headspace sampling unit comprises head space magnetic valve, the first mini three links connector, quantity tube, the second mini three links connector, solenoid valve for sampling, the 3rd mini three links connector that connects successively, described the first mini three links connector also is connected with sample bottle, described the second mini three links connector also is connected with the emptying unit, and described the 3rd mini three links connector also is connected with the blowback magnetic valve; In addition two interfaces of described the first three-way connector are connected with described blowback magnetic valve, solenoid valve for sampling respectively; Described emptying unit comprises vapour lock, quantitative sampling magnetic valve and the 3rd liang of logical connector that connects successively.
Further, described the first mini three links connector, quantity tube, the second mini three links connector, solenoid valve for sampling, the 3rd mini three links connector are placed in the transfer conduit holding furnace, described sample bottle is placed in the head space stove, and described transfer conduit holding furnace and head space stove are respectively equipped with a PID temperature control modules.
The utility model cleaning speed is fast, and cleaning performance is good, and is simple to operate, easy to use, has realized simultaneously the purge cleaning method that Direct/Reverse combines.Do not need during operation the sample introduction needle of injector is pulled out from the chromatograph vaporizer, the hermetically-sealed construction that pipeline connects adopts usual manner just passable, realized the whole process of sample delivery pipeline is cleaned, and, length for scavenging period, the operator arbitrarily sets in advance, automatically carries out, and it is very convenient, flexible to operate.Through repetition test, adopt and just blowing the purge method cleaning that blowback combines, clean and obtained good effect.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, first liang of logical connector, 2, the balancing method AVSV Air Vent Solenoid Valve, 3, the four-way connector, 4, the first three-way connector, 5, the second three-way connector, 6, pressure maintaining valve, 7, the pressurization AVSV Air Vent Solenoid Valve, 8, second liang of logical connector, 9, Pressure gauge, 10, the head space magnetic valve, 11, the first mini three links connector, 12, quantity tube, 13, the second mini three links connector, 14, solenoid valve for sampling, 15, the 3rd mini three links connector, 16, sample bottle, 17, the blowback magnetic valve, 18, vapour lock, 19, the quantitative sampling magnetic valve, 20, the 3rd liang of logical connector, 21, the transfer conduit holding furnace, 22, the head space stove.
The specific embodiment
As shown in Figure 1 a kind of to the forward and reverse cleaning process of sealing pipeline system, its carrier gas source, first liang of logical connector 1, balancing method AVSV Air Vent Solenoid Valve 2, four-way connector 3 connect successively, and in addition three interfaces of described four-way connector 3 are connected with pressurization sample injection unit, headspace sampling unit, the first three-way connector 4 respectively; Described pressurization sample injection unit comprises the second three-way connector 5, pressure maintaining valve 6, pressurization AVSV Air Vent Solenoid Valve 7 and the second liang of logical connector 8 that connects successively, and described the second three-way connector 5 is connected with Pressure gauge 9, and described second liang of logical connector 8 is connected with out-source gas; Described headspace sampling unit comprises head space magnetic valve 10, the first mini three links connector 11, quantity tube 12, the second mini three links connector 13, solenoid valve for sampling 14, the 3rd mini three links connector 15 that connects successively, described the first mini three links connector 11 also is connected with sample bottle 16, described the second mini three links connector 13 also is connected with the emptying unit, and described the 3rd mini three links connector 15 also is connected with blowback magnetic valve 17; In addition two interfaces of described the first three-way connector 4 are connected with described blowback magnetic valve 17, solenoid valve for sampling 14 respectively; Described emptying unit comprises vapour lock 18, quantitative sampling magnetic valve 19 and the 3rd liang of logical connector 20 that connects successively.Described the first mini three links connector 11, quantity tube 12, the second mini three links connector 13, solenoid valve for sampling 14, the 3rd mini three links connector 15 are placed in the transfer conduit holding furnace 21, described sample bottle 16 is placed in the head space stove 22, and described transfer conduit holding furnace 21 is respectively equipped with a PID temperature control modules with head space stove 22.PID temperature control modules control transfer conduit holding furnace 21 independently heats with 22 two in head space stove, intensification and temperature control.The head space furnace temperature is to guarantee that the sample in the sealed sample bottle 16 is evaporated volatile component from sample substrate, and transfer conduit holding furnace temperature is to guarantee that volatile component is not condensed in transmission course, is convenient to sample introduction and reaches residual cleaning.
During cleaning, with head space magnetic valve 10, solenoid valve for sampling 15, quantitative sampling magnetic valve 19, blowback magnetic valve 17 is opened simultaneously, and pipeline gas one tunnel carries out reverse purge emptying (reverse cleaning) through blowback magnetic valve 17, solenoid valve for sampling 15, quantitative sampling magnetic valve 19; Forward purge emptying (forward cleaning) is carried out through head space magnetic valve 10, quantity tube 12, quantitative sampling magnetic valve 19 in another road.So just having formed one road gas begins to end to quantitative sampling magnetic valve 19 emptying at stream middle part from the sample feeding pipe tail end, quantitative sampling magnetic valve 19 emptying of another road gas from 10 beginnings of head space magnetic valve to the middle part end, namely be to begin from two ends end to end to clean to get rid of to the middle part to end, realized simultaneously the purge ablution that Direct/Reverse combines.
The above specific embodiment only is used for explanation the utility model, but not is used for limiting the utility model, and the equivalent variations that those skilled in the art carry out above-described embodiment, replacement are all within the claim protection domain.

Claims (2)

1. one kind to the forward and reverse cleaning process of sealing pipeline system, it is characterized in that: carrier gas source, first liang of logical connector, balancing method AVSV Air Vent Solenoid Valve, four-way connector connect successively, and in addition three interfaces of described four-way connector are connected with pressurization sample injection unit, headspace sampling unit, the first three-way connector respectively;
Described pressurization sample injection unit comprises the second three-way connector, pressure maintaining valve, pressurization AVSV Air Vent Solenoid Valve and the second liang of logical connector that connects successively, and described the second three-way connector is connected with Pressure gauge, and described second liang of logical connector is connected with out-source gas;
Described headspace sampling unit comprises head space magnetic valve, the first mini three links connector, quantity tube, the second mini three links connector, solenoid valve for sampling, the 3rd mini three links connector that connects successively, described the first mini three links connector also is connected with sample bottle, described the second mini three links connector also is connected with the emptying unit, and described the 3rd mini three links connector also is connected with the blowback magnetic valve;
In addition two interfaces of described the first three-way connector are connected with described blowback magnetic valve, solenoid valve for sampling respectively;
Described emptying unit comprises vapour lock, quantitative sampling magnetic valve and the 3rd liang of logical connector that connects successively.
2. according to claim 1 a kind of to the forward and reverse cleaning process of sealing pipeline system, it is characterized in that: described the first mini three links connector, quantity tube, the second mini three links connector, solenoid valve for sampling, the 3rd mini three links connector are placed in the transfer conduit holding furnace, described sample bottle is placed in the head space stove, and described transfer conduit holding furnace and head space stove are respectively equipped with a PID temperature control modules.
CN 201220503376 2012-09-29 2012-09-29 Flow system for seal pipeline forward and reverse cleaning Active CN202845386U (en)

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Application Number Priority Date Filing Date Title
CN 201220503376 CN202845386U (en) 2012-09-29 2012-09-29 Flow system for seal pipeline forward and reverse cleaning

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396846A (en) * 2015-11-25 2016-03-16 江苏新美星包装机械股份有限公司 Device for realizing forward and reverse CIP of UHT system
CN106345761A (en) * 2016-09-12 2017-01-25 天津职业技术师范大学 Automatic clearing apparatus for inner surface of tubule
CN106706745A (en) * 2017-02-17 2017-05-24 神华集团有限责任公司 Measuring device and measuring method of water content in coal liquefaction oil product
CN107202851A (en) * 2017-07-15 2017-09-26 杭州臻盛科技有限公司 The sampling system and its method of a kind of head-space sampler
CN107597747A (en) * 2017-08-16 2018-01-19 京蓝能科技术有限公司 A kind of low discharge long range Liang Luyiji sweeping steam pipelines mechanism and blowing method
CN113714215A (en) * 2021-08-25 2021-11-30 宁波江丰电子材料股份有限公司 Cleaning method of cooling disc for semiconductor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396846A (en) * 2015-11-25 2016-03-16 江苏新美星包装机械股份有限公司 Device for realizing forward and reverse CIP of UHT system
CN105396846B (en) * 2015-11-25 2019-04-19 江苏新美星包装机械股份有限公司 A kind of forward and reverse CIP cleaning device of achievable UHT
CN106345761A (en) * 2016-09-12 2017-01-25 天津职业技术师范大学 Automatic clearing apparatus for inner surface of tubule
CN106706745A (en) * 2017-02-17 2017-05-24 神华集团有限责任公司 Measuring device and measuring method of water content in coal liquefaction oil product
CN107202851A (en) * 2017-07-15 2017-09-26 杭州臻盛科技有限公司 The sampling system and its method of a kind of head-space sampler
CN107597747A (en) * 2017-08-16 2018-01-19 京蓝能科技术有限公司 A kind of low discharge long range Liang Luyiji sweeping steam pipelines mechanism and blowing method
CN113714215A (en) * 2021-08-25 2021-11-30 宁波江丰电子材料股份有限公司 Cleaning method of cooling disc for semiconductor

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