CN108692868A - Water cooling heat exchanger cools down medium leakage inspection method - Google Patents
Water cooling heat exchanger cools down medium leakage inspection method Download PDFInfo
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- CN108692868A CN108692868A CN201710230286.6A CN201710230286A CN108692868A CN 108692868 A CN108692868 A CN 108692868A CN 201710230286 A CN201710230286 A CN 201710230286A CN 108692868 A CN108692868 A CN 108692868A
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- Prior art keywords
- heat exchanger
- water cooling
- cooling heat
- active ingredient
- liquid sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
Abstract
The present invention provides a kind of water cooling heat exchanger cooling medium leakage inspection method, including:Obtain the liquid sample in water cooling heat exchanger;Chromatography is carried out to the active ingredient in the liquid sample, to obtain the finger-print of the active ingredient;Judge whether the active ingredient and cooling medium are identical according to the standard diagram of cooling medium in the finger-print and water cooling heat exchanger of the active ingredient, if so, executing water cooling heat exchanger leakage operation.Water cooling heat exchanger cooling medium leakage inspection method provided by the invention can improve leakage detection accuracy.
Description
Technical field
The present invention relates to water cooling heat exchanger cooling medium Technology of Leak-checking by Gas more particularly to a kind of water cooling heat exchanger cooling medium to look into
Leakage method.
Background technology
Water cooling heat exchanger is the main device in recirculating cooling water system, and the cooling circulated is equipped in water cooling heat exchanger
Medium cools down to outside liquid by cooling Absorption of Medium heat realization.Cooling medium is usually to have certain corrosivity
Organic matter, such as amine liquid, lye, gasoline, diesel oil etc., by factors such as cooling corrosive medium, construction quality, production operations
It influences, cooling medium is easy from water cooling heat exchanger internal leakage.Once leaking, the water quality of recirculating cooling water system can be caused to send out
It is raw to deteriorate, and also result in water cooling heat exchanger and serious corrosion and deposition harm occurs, and then the normal operation of device is influenced,
Generate vicious circle.Contaminated quality recovery normal need is spent into some months even longer time, expends great object
Power and financial resources.
In general, a Circulating Water Field has multiple water cooling heat exchangers, once find there is cooling dielectric leakage, it is necessary to it looks into as early as possible
It finds the water cooling heat exchanger leaked and is repaired or replaced, avoid pollution in wide area water quality.Conventional leakage inspection method is
Water sample in all water cooling heat exchangers in cycle water factory is acquired, is then examined using such as oil content analytic approach, pH value
The methods of survey method, chlorine residue detection method are detected, to determine the water cooling heat exchanger leaked.But above-mentioned leakage inspection method needs disappear
A large amount of man power and material is consumed, and detects accuracy and does not reach requirement, can not detect micro leakage.
Invention content
The present invention provides a kind of water cooling heat exchanger cooling medium leakage inspection method, for improving leakage detection accuracy.
The present invention provides a kind of water cooling heat exchanger cooling medium leakage inspection method, including:
Obtain the liquid sample in water cooling heat exchanger;
Chromatography is carried out to the active ingredient in the liquid sample, to obtain the finger-print of the active ingredient;
Have according to described in the standard diagram judgement of cooling medium in the finger-print and water cooling heat exchanger of the active ingredient
It imitates ingredient and whether cooling medium is identical, if so, executing water cooling heat exchanger leakage operation.
Water cooling heat exchanger as described above cools down medium leakage inspection method, further includes:
Chromatography is carried out to the cooling medium in water cooling heat exchanger, to establish the standard diagram of the cooling medium.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and color is carried out to the active ingredient in the liquid sample
Spectrum analysis, to obtain the finger-print of the active ingredient, including:
Extracting and enriching is carried out to the liquid sample, to obtain the active ingredient in the liquid sample;
Chromatography is carried out to the active ingredient, to obtain the finger-print of the active ingredient.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and chromatography is carried out to the cooling medium in water cooling heat exchanger
Analysis, including:
Under the first gas-chromatography operating condition, using gas chromatography to the cooling medium in water cooling heat exchanger into
Row chromatography.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and color is carried out to the active ingredient in the liquid sample
Spectrum analysis, including:
Under the second gas-chromatography operating condition, using gas chromatography to the active ingredient in the liquid sample
Carry out chromatography.
Water cooling heat exchanger as described above cools down medium leakage inspection method, the first gas-chromatography operating condition and the second gas
Phase operation condition of chromatogram is identical.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and extracting and enriching is carried out to the liquid sample, with
To the active ingredient in the liquid sample, including:
The liquid sample is injected into extraction column according to setting injection flow, consolidating after activation is provided in the extraction column
Phase is determined, so that the active ingredient in the liquid sample is retained in the stationary phase;
The stationary phase is eluted using eluting solvent, to obtain the active ingredient.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and the stationary phase is reverse phase nonpolarity C18 pillars.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and the eluting solvent is acetone.
Water cooling heat exchanger as described above cools down medium leakage inspection method, and the injection flow that sets is 3mL/min-10mL/
min。
Technical solution provided by the invention, by obtaining the liquid sample in water cooling heat exchanger, to having in liquid sample
It imitates ingredient and carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water cooling
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in heat exchanger, if so, determining cooling medium
It is leaked, corresponding water cooling heat exchanger leakage operation can be executed.The water cooling leaked is determined by finger-print
There is heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
Description of the drawings
Fig. 1 is the flow chart that the water cooling heat exchanger that the embodiment of the present invention one provides cools down medium leakage inspection method;
Fig. 2 is the flow chart that water cooling heat exchanger provided by Embodiment 2 of the present invention cools down medium leakage inspection method;
Fig. 3 is the flow chart that the water cooling heat exchanger that the embodiment of the present invention five provides cools down medium leakage inspection method;
Fig. 4 is to extract to liquid sample in the water cooling heat exchanger cooling medium leakage inspection method that the embodiment of the present invention six provides
Take the flow chart of enrichment.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is the flow chart that the water cooling heat exchanger that the embodiment of the present invention one provides cools down medium leakage inspection method.Such as Fig. 1 institutes
Show, the present embodiment provides a kind of water cooling heat exchangers to cool down medium leakage inspection method, including:
Liquid sample in step 10, acquisition water cooling heat exchanger.
Step 20 carries out chromatography to the active ingredient in liquid sample, to obtain the finger-print of active ingredient.
Step 30 judges effectively according to the standard diagram of cooling medium in the finger-print and water cooling heat exchanger of active ingredient
Whether ingredient and cooling medium are identical, if so, executing water cooling heat exchanger leakage operation.
In above-mentioned steps 10, liquid sample can be acquired out of water cooling heat exchanger, such as be carried out in the overflow area of cold water side
Acquisition.It may include water quality to be cooled in liquid sample, it is also possible to include other materials, such as:It is let out from water cooling heat exchanger
The cooling medium that spills, the Cucumber being dissolved in water, the Cucumber etc. for floating or being suspended in water quality.
In above-mentioned steps 20, chromatography is carried out to the active ingredient in liquid sample, wherein effective in liquid sample
Ingredient is to refer to detach with water quality and the substance for making chromatography, in the present embodiment, if the cooling in water cooling heat exchanger
Medium leaks, then the active ingredient in liquid sample just contains cooling medium.
Then, chromatography is carried out to active ingredient, technology ripe in the prior art can be used to be handled, to obtain
To the finger-print of above-mentioned active ingredient.Each substance shown out parameter on finger-print is all specific, such as special
Levy the parameters such as peak, appearance time.
In above-mentioned steps 30, the finger-print of active ingredient is compared with existing standard diagram, judge effectively at
Whether there is characteristic parameter identical with standard diagram on the finger-print divided, if so, then illustrating the active ingredient of liquid sample
The cooling medium in water cooling heat exchanger is contained, i.e.,:Cooling medium in water cooling heat exchanger is leaked;If nothing illustrates
Without containing cooling medium in the active ingredient of liquid sample, i.e.,:Cooling medium does not leak.
When learning that cooling medium leaks, water cooling heat exchanger leakage operation can be executed, such as utilize audio, lamp
Light, picture show etc. that modes send out alarm lamp, to prompt user.
Since reflected characteristic parameter is unique, and the spy between each substance to each substance on finger-print
Parameter difference is levied away from larger, then can know whether that cooling medium leaks or even energy rapidly by the comparison of finger-print
Enough detect micro-leakage.
Corresponding control device may be used to execute in above-mentioned water cooling heat exchanger cooling medium leakage inspection method, can also pass through
Manual operation executes.For being performed mode using control device, those skilled in the art can be arranged according to above-mentioned steps
The specific implementation of control device, such as:Hardware circuit, design software flow algorithm etc. are built, the present embodiment does not limit
It is fixed.
For multiple water cooling heat exchangers in a Circulating Water Field, the liquid sample of each water cooling heat exchanger can be acquired, and
Chromatography is carried out to each liquid sample, obtains the finger-print of each liquid sample, is then carried out with standard diagram
It compares, when containing characteristic parameter identical with standard diagram in the finger-print of some liquid sample, then can determine whether out the liquid
Cooling medium in the corresponding water cooling heat exchanger of sample is leaked.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
Using above-mentioned technical proposal, to leakage detection most short four hours of cooling medium, one working day of longest can be completed,
Efficiency and accuracy is improved, a large amount of man power and material is saved.
Embodiment two
The present embodiment is on the basis of the above embodiments, to be carried out to water cooling heat exchanger cooling medium leakage inspection method further
Improvement.
The standard diagram needs of above-mentioned cooling medium pre-establish, and after standard diagram to be established, can be used
The method stated in embodiment one carries out leakage detection to water cooling heat exchanger.
If because certain reason has replaced cooling medium, need to re-establish standard diagram, i.e.,:In above-described embodiment one
On the basis of, it is also necessary to execute the operation for establishing standard diagram.
Fig. 2 is the flow chart that water cooling heat exchanger provided by Embodiment 2 of the present invention cools down medium leakage inspection method.Such as Fig. 2 institutes
Show, before above-mentioned steps 10, step 40 need to be executed:
Step 40 carries out chromatography to the cooling medium in water cooling heat exchanger, to establish the standard diagram of cooling medium.
Chromatography is carried out to cooling medium, technology ripe in the prior art can be used to be handled, it is cold to obtain
But the finger-print of medium, as standard diagram.Each substance shown out parameter on standard diagram is all specific, example
Such as characteristic peak, appearance time parameter.
Wait for that step 40 is finished and then executes following steps:
Liquid sample in step 10, acquisition water cooling heat exchanger.
Step 20 carries out chromatography to the active ingredient in liquid sample, to obtain the finger-print of active ingredient.
Step 30 judges effectively according to the standard diagram of cooling medium in the finger-print and water cooling heat exchanger of active ingredient
Whether ingredient and cooling medium are identical, if so, executing water cooling heat exchanger leakage operation.
The realization method of step 10, step 20 and step 30 can refer to embodiment one, and details are not described herein again.
Alternatively, step 40 can also execute after step 20, specific execution sequence can be set by technical staff.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
Embodiment three
The present embodiment is on the basis of the above embodiments, to be carried out to water cooling heat exchanger cooling medium leakage inspection method further
Improvement, the realization method that standard diagram is especially established to step 40 is improved.
Chromatography is carried out to the cooling medium in water cooling heat exchanger, need to be under certain operation condition of chromatogram, it can
Obtain optimal finger-print.The present embodiment is under the first gas-chromatography operating condition, using gas chromatography to water
Cooling medium in cold heat exchanger carries out chromatography.
First, extraction column appropriate need to be selected according to the characteristic of cooling medium, such as:Stainless Steel Capillary tubing string, poly- silica
Alkane extraction column etc..Selection Stainless Steel Capillary tubing string DB-1HT columns, the length of 30m, capillary inner diameter are in the present embodiment
0.32mm, capillary tube inner wall are attached with fixer, and the thickness of fixer is 0.1 μm.The fixer of capillary tube inner wall attachment is used for
The cooling medium of absorption.
Secondly, in conjunction with the first gas-chromatography operating condition provided in this embodiment, can obtain preferable separating property and
Reappear performance.First gas-chromatography operating condition is included in required some parameters set during chromatography.
Extraction column is placed in post case, the temperature for controlling post case heats up according to the heating mode of setting.To post case
It is heated, the temperature of post case is linearly increased to 60 DEG C from room temperature, then with the heating rate of 5 DEG C/min by the temperature of post case
Degree is increased to 360 DEG C, and is kept for 10 minutes.
After temperature is increased to 360 DEG C, start into extraction column the liquid sample after injection gasification, control extraction column into
Sample mouth temperature is maintained at 300 DEG C, and the split ratio of the liquid sample after gasification is controlled 50:1.
Carrier gas in extraction column uses nitrogen.Nitrogen as carrier, carry the liquid sample after gasification enter detector into
Row atlas analysis, it is 300 DEG C that detection implement body, which uses flame ionization ditector, detection temperature, air mass flow 400mL/
Min, hydrogen flowing quantity 40mL/min.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
And above-mentioned Stainless Steel Capillary tubing string DB-1HT columns are used, and the first gas-chromatography operating condition is combined, using gas phase
Red, orange, green, blue, yellow (ROGBY) carries out chromatography to cooling medium, can obtain preferable separating property and reappear performance, and then improve and look into
Leak accuracy.
Example IV
The present embodiment is on the basis of the above embodiments, to be carried out to water cooling heat exchanger cooling medium leakage inspection method further
Improvement, especially to step 20 in liquid sample active ingredient carry out chromatography realization method be improved.
Chromatography is carried out to the active ingredient in liquid sample, also need to be under certain operation condition of chromatogram, it can
Obtain optimal finger-print.The present embodiment is under the second gas-chromatography operating condition, using gas chromatography to liquid
Active ingredient in body sample carries out chromatography.
First, extraction column appropriate need to be selected according to the characteristic of active ingredient in liquid sample, due to the mesh of the present embodiment
Be that leakage detection is carried out to cooling medium, therefore, can will cooling medium be selected as a portion of active ingredient it is appropriate
Extraction column, such as:Stainless Steel Capillary tubing string, polysiloxanes extraction column etc..Stainless Steel Capillary tubing string DB- is selected in the present embodiment
1HT columns, the length of 30m, capillary inner diameter 0.32mm, capillary tube inner wall are attached with fixer, and the thickness of fixer is 0.1
μm.The fixer of capillary tube inner wall attachment is used to adsorb the active ingredient in liquid sample.
Secondly, in conjunction with the second gas-chromatography operating condition provided in this embodiment, can obtain preferable separating property and
Reappear performance.Second gas-chromatography operating condition is included in required some parameters set during chromatography.
It is understood that chromatography is carried out to cooling medium with the first gas-chromatography operating condition, with the second gas phase
Operation condition of chromatogram carries out chromatography to liquid sample, when the first gas-chromatography operating condition and the second gas-chromatography operate item
When part is completely the same, if containing cooling medium, finger-print and standard drawing of the cooling medium in liquid sample in liquid sample
Characteristic parameter embodied in spectrum out is the most close.
Therefore, in the present embodiment, the first gas-chromatography operating condition is set as complete with the second gas-chromatography operating condition
It is complete consistent.I.e.:The temperature of control post case heats up according to the heating mode of setting.Post case is heated, by post case
Temperature is linearly increased to 60 DEG C from room temperature, the temperature of post case is then increased to 360 DEG C with the heating rate of 5 DEG C/min, and protect
It holds 10 minutes.
The injector temperature of control extraction column is maintained at 300 DEG C, and the split ratio of the liquid sample after gasification is controlled 50:1.
Carrier gas in extraction column uses nitrogen.Nitrogen as carrier, carry the liquid sample after gasification enter detector into
Row atlas analysis, it is 300 DEG C that detection implement body, which uses flame ionization ditector, detection temperature, air mass flow 400mL/
Min, hydrogen flowing quantity 40mL/min.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
And above-mentioned Stainless Steel Capillary tubing string DB-1HT columns are used, and the second gas-chromatography operating condition is combined, using gas phase
Red, orange, green, blue, yellow (ROGBY) carries out chromatography to the active ingredient in liquid sample, can obtain preferable separating property and reproducibility
Can, and then improve leakage detection accuracy.Meanwhile it setting the second gas-chromatography operating condition to carry out chromatography point with to cooling medium
The first gas-chromatography operating condition set by analysis process is completely the same, can further increase leakage detection accuracy.
Embodiment five
The present embodiment is on the basis of the above embodiments, to be carried out to water cooling heat exchanger cooling medium leakage inspection method further
Improvement, especially above-mentioned steps 20 are further improved.
Fig. 3 is the flow chart that the water cooling heat exchanger that the embodiment of the present invention five provides cools down medium leakage inspection method.Such as Fig. 3 institutes
Show, the step 10, step 30 in Fig. 3 can refer to Fig. 1, and the present embodiment only carries out specifically the realization method of step 20
It is bright.
Above-mentioned steps 20 can specifically include:
Step 201 carries out extracting and enriching to liquid sample, to obtain the active ingredient in liquid sample.
Step 202 carries out chromatography to active ingredient, to obtain the finger-print of active ingredient.
Wherein, in step 201, extracting and enriching is carried out to collected liquid sample, can be used commonly used in the prior art
Extraction and enrichment method, to obtain active ingredient therein.In the case where cooling medium leaks, centainly wrapped in active ingredient
Containing cooling medium, therefore, extraction and enrichment method appropriate can be selected according to the characteristic of cooling medium.
In step 202, chromatography is carried out to active ingredient, can refer to the realization method of example IV offer, herein not
It repeats again.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
Embodiment six
The present embodiment is on the basis of the above embodiments, to be carried out to water cooling heat exchanger cooling medium leakage inspection method further
Improvement, especially the step 201 in embodiment five is further improved.
In above-mentioned steps 201, extracting and enriching is carried out to liquid sample, to obtain the active ingredient in liquid sample.This reality
It applies example and a kind of mode of specific extracting and enriching is provided:
Fig. 4 is to extract to liquid sample in the water cooling heat exchanger cooling medium leakage inspection method that the embodiment of the present invention six provides
Take the flow chart of enrichment.As shown in figure 4, it includes the following steps to carry out extracting and enriching to liquid sample:
Step 2011 carries out activation process to the stationary phase in extraction column.
Before step 2011, need acquisition that can represent the water sample of circulation comprehensive nature, as liquid sample.
It can be sampled in the overflow area of the water cooling pond side of water cooling heat exchanger, sampling container is wide-mouth bottle, and sampling amount is about 0.5L-
1.0L。
Then can include cooling medium in liquid sample when the cooling medium in water cooling heat exchanger leaks.According to cold
But the characteristic of medium selects extraction column appropriate and stationary phase.After column to be extracted and stationary phase determine, it is necessary first to stationary phase
Activation process is carried out, i.e., the state of stationary phase is activated using activator, so that stationary phase can be adsorbed in subsequent step
Imitate ingredient.
In the present embodiment, since the solvent in liquid sample is water, activator uses distilled water, characteristic and liquid
The solvent properties of body sample are the most similar.The dosage of activator is about 1mL/100mg-2mL/100mg.
The specific implementation of activation can refer to the prior art to realize.After being activated during activation, Gu
It is fixed mutually all to be drained, otherwise the packed bed of stationary phase will be caused crack occur, and then cause the rate of recovery relatively low and reproducibility
It is poor.
It is understood that the stationary phase in extraction column was activated, then it can skip step 2011 and directly execute
Step 2012.
Step 2012, according to setting injection flow liquid sample is injected into extraction column so that in liquid sample it is effective at
Code insurance stays in stationary phase.
Liquid sample is injected into extraction column according to setting injection flow, and liquid sample is forced by way of pressure extraction
It by stationary phase, is come into full contact with stationary phase, so that the active ingredient in liquid sample is retained in stationary phase.Injecting flow can
Think 3mL/min-10mL/min, the requirement of chromatography can either be met, and stationary phase leakage will not be caused.
Step 2013 elutes the stationary phase using eluting solvent, to obtain active ingredient.
Acetone, dosage 0.5mL/100mg-0.8mL/mg, by active ingredient from stationary phase can be used in eluting solvent
Elution, to carry out atlas analysis to the active ingredient after elution.
12 pipe solid-phase extraction devices can be used in above-mentioned carry out extracting and enriching, and reverse phase nonpolarity can be used in stationary phase therein
C18 pillars, reverse phase nonpolarity C18 pillars are strongest hydrophobic silicone bonding absorption phases, have strong nonpolar stick effect.
Technical solution provided in this embodiment, by obtaining the liquid sample in water cooling heat exchanger, in liquid sample
Active ingredient carries out chromatography, to obtain the finger-print of active ingredient, then according to the finger-print of active ingredient and water
The standard diagram of cooling medium judges whether active ingredient and cooling medium are identical in cold heat exchanger, if so, determining cooling be situated between
Matter is leaked, and corresponding water cooling heat exchanger leakage operation can be executed.The water leaked is determined by finger-print
There is cold heat exchanger higher accuracy, even micro leakage can also be reflected by finger-print.
Also, during carrying out extracting and enriching to liquid sample, extracted using stationary phase, it will be in liquid sample
Active ingredient detach and be retained in stationary phase with solvent, then active ingredient is eluted from stationary phase by eluting solvent,
To carry out atlas analysis to active ingredient.Stationary phase uses reverse phase nonpolarity C18 pillars, has strong nonpolar stick effect,
Micro cooling medium can be retained in stationary phase, further increase leakage detection accuracy.
One of ordinary skill in the art will appreciate that:Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence;And storage medium above-mentioned includes:ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of water cooling heat exchanger cools down medium leakage inspection method, which is characterized in that including:
Obtain the liquid sample in water cooling heat exchanger;
Chromatography is carried out to the active ingredient in the liquid sample, to obtain the finger-print of the active ingredient;
According to the standard diagram of cooling medium in the finger-print and water cooling heat exchanger of the active ingredient judge it is described effectively at
It is point whether identical as cooling medium, if so, execution water cooling heat exchanger leakage operation.
2. water cooling heat exchanger according to claim 1 cools down medium leakage inspection method, which is characterized in that further include:
Chromatography is carried out to the cooling medium in water cooling heat exchanger, to establish the standard diagram of the cooling medium.
3. water cooling heat exchanger according to claim 2 cools down medium leakage inspection method, which is characterized in that the liquid sample
In active ingredient carry out chromatography, to obtain the finger-print of the active ingredient, including:
Extracting and enriching is carried out to the liquid sample, to obtain the active ingredient in the liquid sample;
Chromatography is carried out to the active ingredient, to obtain the finger-print of the active ingredient.
4. water cooling heat exchanger according to claim 1 cools down medium leakage inspection method, which is characterized in that in water cooling heat exchanger
Cooling medium carry out chromatography, including:
Under the first gas-chromatography operating condition, color is carried out to the cooling medium in water cooling heat exchanger using gas chromatography
Spectrum analysis.
5. water cooling heat exchanger according to claim 4 cools down medium leakage inspection method, which is characterized in that the liquid sample
In active ingredient carry out chromatography, including:
Under the second gas-chromatography operating condition, the active ingredient in the liquid sample is carried out using gas chromatography
Chromatography.
6. water cooling heat exchanger according to claim 5 cools down medium leakage inspection method, which is characterized in that the first gas phase color
It is identical as the second gas-chromatography operating condition to compose operating condition.
7. water cooling heat exchanger according to claim 3 cools down medium leakage inspection method, which is characterized in that the liquid sample
Extracting and enriching is carried out, to obtain the active ingredient in the liquid sample, including:
The liquid sample is injected into extraction column, the fixation being provided in the extraction column after activation according to setting injection flow
Phase, so that the active ingredient in the liquid sample is retained in the stationary phase;
The stationary phase is eluted using eluting solvent, to obtain the active ingredient.
8. water cooling heat exchanger according to claim 7 cools down medium leakage inspection method, which is characterized in that the stationary phase is anti-
Mutually nonpolarity C18 pillars.
9. water cooling heat exchanger according to claim 8 cools down medium leakage inspection method, which is characterized in that the eluting solvent is
Acetone.
10. water cooling heat exchanger according to claim 7 cools down medium leakage inspection method, which is characterized in that the setting injection
Flow is 3mL/min-10mL/min.
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| CN (1) | CN108692868A (en) |
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| CN102713553A (en) * | 2010-01-13 | 2012-10-03 | 住友化学株式会社 | Method for detecting abnormality in heat-exchange process, and heat exchanger |
| CN102279082A (en) * | 2011-04-20 | 2011-12-14 | 清华大学 | On-line monitoring method of petrochemical water cooler leakage |
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