CN108760560A - A kind of method and device detecting the coke powder content in delayed coking acid water - Google Patents
A kind of method and device detecting the coke powder content in delayed coking acid water Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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Abstract
The present invention provides a kind of method and devices of the coke powder content in detection delayed coking acid water, the device include graduated cylinder, sample bucket, water tank (1), with water tank (1) be 1 μm by the rodlike tunica fibrosa (4) of the first piping connection, bottle,suction (6), the first filter paper (5) that aperture is 10 μm, aperture the second filter paper and scuttlebutt.The capacity of sample bucket is not less than 20L；The filter opening aperture of tunica fibrosa (4) is 10 μm, and delivery pump (2) is provided on the first pipeline, and the one end of tunica fibrosa (4) far from the first pipeline is connected with the second pipeline；First filter paper (5) is arranged below the top opening in bottle,suction (6) and the outlet positioned at the second pipeline, and the bleeding point of bottle,suction (6) is connected with vacuum pump (7).Method and device provided by the invention can make people accurately detect the coke powder content in delayed coking acid water, and the removal efficiency that coke powder removes technique is analyzed in time to be conducive to people.
Description
Technical field
The present invention relates to Delayed Coking Technology fields, contain more particularly to the coke powder in a kind of detection delayed coking acid water
The method and device of amount.
Background technology
Delay coking process is a kind of widely applied heavy oil/Residual cracking technology, due to the particularity of its technique, coking
Inevitably carry coke powder in the products such as gasoline, diesel oil and acid water, if delayed coking acid water carry coke powder compared with
It is more, then can not only influence the Effec-tive Function of acidic water stripping device, also associated heat exchanger can occur to block up caused by local accumulation
Plug, therefore the long-term operation that acid water treatment facilities will be seriously affected.
In order to ensure the efficient long-term operation of soul water stripper, needed in actual production to coming from delayed coking unit
Acid water implement necessary coke powder removal technique, still, coke powder content in delayed coking acid water is detected due to lacking at present
Technique cause coke powder to remove technique in this way so the removal efficiency for being difficult in time remove coke powder technique makes analysis
Often there is lag in adjustment work, influence the economic benefit of enterprise, therefore, how provide a kind of detection delayed coking acid
The method of coke powder content, becomes those skilled in the art's technical problem urgently to be resolved hurrily in property water.
Invention content
In view of this, the present invention provides a kind of method and device of the coke powder content in detection delayed coking acid water,
This method and device can make people accurately detect the coke powder content in delayed coking acid water, to be conducive to people and time-division
Analyse the removal efficiency of coke powder removal technique.
In order to achieve the above object, the present invention provides the following technical solutions：
A kind of device detecting the coke powder content in delayed coking acid water, including：
The capacity of the graduated cylinder and sample bucket of sampling, the sample bucket is not less than 20L；
Water tank；
With the water tank by the rodlike tunica fibrosa of the first piping connection, the filter opening aperture of the tunica fibrosa is 10 μ
M is provided with delivery pump on first pipeline, and the one end of the tunica fibrosa far from first pipeline is connected with the second pipeline；
The top opening of bottle,suction, the bottle,suction is provided with the first filter paper that aperture is 10 μm, first filter paper position
Below the outlet of second pipeline, the bleeding point of the bottle,suction is connected with vacuum pump；And
The second filter paper that the scuttlebutt of secondary filter and aperture are 1 μm.
Preferably, in above-mentioned apparatus, heat exchanger is provided on first pipeline, the heat exchanger is located at the conveying
Between pump and the tunica fibrosa.
A method of the coke powder content in detection delayed coking acid water, the method use described in claims 1 or 22
Device, include the following steps：
Step A is measured in 20L acid waters to the sample bucket using the graduated cylinder from the sample tap of coking plant, by institute
It states sample bucket to be transported at the water tank, the acid water in the sample bucket is all poured into the water tank；
Step B starts the delivery pump and the vacuum pump, after the acid water in the water tank flows through the tunica fibrosa
The first clear water and condensed water are formed, the condensed water flow to first filter paper, the condensed water warp by second pipeline
The first filtrate and the second clear water are formed after crossing first filter paper, first clear water is collected using the scuttlebutt；
Step C uses distilled water flushing institute after the acid water in the water tank all flows through first filter paper
The first filtrate is stated, second clear water in the bottle,suction is all then poured into the scuttlebutt, by the scuttlebutt
Interior water flows through second filter paper and is filtered, and forms the second filtrate on second filter paper, is rushed using distilled water
Wash second filtrate；
First filtrate and second filtrate are dried, weigh by step D, are filtered according to described first
The coke in delayed coking acid water is calculated in known sampling amount in the gross mass and step A of object and second filtrate
Powder content.
Preferably, in the above-mentioned methods, further include in the step A：
The storage is all poured into using the inner wall of sample bucket described in distilled water flushing and the graduated cylinder, and by the water after flushing
Water pot.
Preferably, in the above-mentioned methods, in the step A, sample bucket described in distilled water flushing and the graduated cylinder are according to 4
It is secondary or 5 times repeat.
Preferably, in the above-mentioned methods, in the step C, 4 flushing first filtrates of distillation moisture, phase are used
The adjacent interval 20s~40s that rinses twice is carried out.
Preferably, in the above-mentioned methods, in the step A, before sampling, the sample tap is first opened into the 80s that discharges water
~120s.
Contained it is found that detecting the coke powder in delayed coking acid water using device provided by the invention according to above-mentioned technical proposal
When amount, the tunica fibrosa and the first filter paper that are first 10 μm by aperture are filtered, and form the first clear water, the second clear water and first
Filtrate, then again will the first clear water and the second clear water mix after be 1 μm by aperture the second filter paper be filtered, form the
First filtrate and the second filtrate are finally dried, weigh by two filtrates, and are filtered according to the first filtrate and second
The coke powder content in delayed coking acid water is calculated in the gross mass of object and known sampling amount.It can be seen that of the invention
The detection of coke powder content is carried out by classified filtering, can to avoid influence of the coke powder particle to testing result less than 10 μm, from
And relatively accurately detect the coke powder content in delayed coking acid water, be conducive to people in this way and analyze coke powder removal work in time
The removal efficiency of skill, to adjust coke powder removal technique in due course, avoid excessive coke powder to the heat exchange efficiency of follow-up heat exchanger and
The energy consumption of Wastewater Stripping Tower adversely affects.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the signal of the device of the coke powder content in a kind of detection delayed coking acid water provided in an embodiment of the present invention
Figure.
In figure label for：
1, water tank；2, delivery pump；3, heat exchanger；4, tunica fibrosa；5, the first filter paper；6, bottle,suction；7, vacuum pump.
Specific implementation mode
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, for a kind of device detecting the coke powder content in delayed coking acid water provided in an embodiment of the present invention
Schematic diagram, which includes water tank 1, delivery pump 2, tunica fibrosa 4, the first filter paper 5, bottle,suction 6, vacuum pump 7, Yi Jitu
In unshowned graduated cylinder, sample bucket, scuttlebutt and the second filter paper.
Wherein, for sampling, the capacity of sample bucket is not less than 20L for graduated cylinder and sample bucket；
Scuttlebutt and the second filter paper are for carrying out secondary filter, and the aperture of the second filter paper is 1 μm；
Rodlike tunica fibrosa 4 and water tank 1 are connect, the filter opening aperture of tunica fibrosa 4 by the first pipeline (in figure unmarked)
It is 10 μm, delivery pump 2 is provided on the first pipeline, the one end of tunica fibrosa 4 far from the first pipeline is connected with the second pipeline (in figure not
Label)；
The aperture of first filter paper 5 is 10 μm, and the top opening in bottle,suction 6 is arranged in the first filter paper 5, and is located at the second pipeline
Outlet below, the bleeding point of bottle,suction 6 is connected with vacuum pump 7.
In specific practical application, acid water may cause tunica fibrosa 4 to fail if temperature is excessively high, in order to improve device
Reliability can be provided with heat exchanger 3 on the first pipeline, as shown in Figure 1, heat exchanger 3 be located at delivery pump 2 and tunica fibrosa 4 it
Between, it is ensured that acid water moderate temperature.
The present invention also provides a kind of sides for detecting the coke powder content in delayed coking acid water using the device of the invention
Method, this approach includes the following steps：
S1 is measured in 20L acid waters to sample bucket from the sample tap of coking plant using graduated cylinder, sample bucket is transported to water storage
At tank 1, the acid water in sample bucket is all poured into water tank 1.
In specific practical application, before sampling, can sample tap first be opened into the 80s~120s that discharges water, it in this way can be true
The coke powder content protected in acid water sample is uniform, avoids the presence of the bulk coke group made of the aggregation of immobilising coke powder.
Can also include following operation in step sl in addition, in order to improve the accuracy of testing result as possible：Use steaming
Distilled water rinses the inner wall of sample bucket and graduated cylinder, and the water after flushing is all poured into water tank 1.
In specific practical application, distilled water flushing sample bucket and graduated cylinder can repeat according to 4 times or 5 times, as long as
Ensure that the coke powder being visible by naked eyes is adhered to the inner wall surface of sample bucket and graduated cylinder.
S2, starts delivery pump 2 and vacuum pump 7, the acid water in water tank 1 flow through formed after tunica fibrosa 4 first clear water and
Condensed water, condensed water flow to the first filter paper 5 by the second pipeline, and condensed water forms the first filtrate after the first filter paper 5
With the second clear water, the first clear water is collected using scuttlebutt.
First clear water is that acid water is formed after the filtering of tunica fibrosa 4, and referred to herein as primary filtering, the first clear water is subsequently gone back
Secondary filter is carried out by the second filter paper, see step S3.
Second clear water is that the condensed water that tunica fibrosa 4 flows out is formed after the filtering of the first filter paper 5, can also be regarded as herein primary
Filtering, the second clear water subsequently equally will also carry out secondary filter by the second filter paper, see step S3.
S3, after the acid water in water tank 1 all flows through the first filter paper 5, using the first filtrate of distilled water flushing,
Then the second clear water in bottle,suction 6 all being poured into scuttlebutt, the water in scuttlebutt, which is flowed through the second filter paper, to be filtered,
The second filtrate is formed on second filter paper, uses the second filtrate of distilled water flushing.
Use distilled water flushing filtrate, it is therefore an objective to the salts substances in acid water be avoided to be attached to coke powder surface and influence
The accuracy of coke powder content detection result.
In specific practical application, 4 the first filtrates of flushing of distillation moisture can be used, it is adjacent to rinse interval 20s twice
~40s is carried out.
First filtrate and the second filtrate are dried, weigh by S4, according to the first filtrate and the second filtrate
The coke powder content in delayed coking acid water is calculated in known sampling amount in gross mass and step S1.
By above-mentioned detection process it is found that detecting the coke powder content in delayed coking acid water using device provided by the invention
When, the tunica fibrosa 4 and the first filter paper 5 that are first 10 μm by aperture are filtered, and form the first clear water, the second clear water and first
Filtrate, then again will the first clear water and the second clear water mix after be 1 μm by aperture the second filter paper be filtered, form the
First filtrate and the second filtrate are finally dried, weigh by two filtrates, and are filtered according to the first filtrate and second
The coke powder content in delayed coking acid water is calculated in the gross mass of object and known sampling amount.It can be seen that of the invention
The detection of coke powder content is carried out by classified filtering, can to avoid influence of the coke powder particle to testing result less than 10 μm, from
And relatively accurately detect the coke powder content in delayed coking acid water, be conducive to people in this way and analyze coke powder removal work in time
The removal efficiency of skill, to adjust coke powder removal technique in due course, avoid excessive coke powder to the heat exchange efficiency of follow-up heat exchanger and
The energy consumption of Wastewater Stripping Tower adversely affects.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications of embodiment will be apparent to those skilled in the art, it is as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
It can be restricted to embodiment illustrated herein, and be to fit to consistent with the principles and novel features disclosed in this article most wide
Range.
Claims (7)
1. a kind of device of the coke powder content in detection delayed coking acid water, which is characterized in that including：
The capacity of the graduated cylinder and sample bucket of sampling, the sample bucket is not less than 20L；
Water tank (1)；
Pass through the rodlike tunica fibrosa (4) of the first piping connection, the filter opening aperture of the tunica fibrosa (4) with the water tank (1)
It is 10 μm, delivery pump (2) is provided on first pipeline, the one end of the tunica fibrosa (4) far from first pipeline connects
There is the second pipeline；
The top opening of bottle,suction (6), the bottle,suction (6) is provided with the first filter paper (5) that aperture is 10 μm, first filtering
Paper (5) is located at below the outlet of second pipeline, and the bleeding point of the bottle,suction (6) is connected with vacuum pump (7)；And
The second filter paper that the scuttlebutt of secondary filter and aperture are 1 μm.
2. the apparatus according to claim 1, which is characterized in that heat exchanger (3) is provided on first pipeline, it is described to change
Hot device (3) is between the delivery pump (2) and the tunica fibrosa (4).
3. a kind of method of the coke powder content in detection delayed coking acid water, which is characterized in that the method is wanted using right
The device described in 1 or 2 is sought, is included the following steps：
Step A is measured in 20L acid waters to the sample bucket from the sample tap of coking plant using the graduated cylinder, is taken described
Sample bucket is transported at the water tank (1), and the acid water in the sample bucket is all poured into the water tank (1)；
Step B, starts the delivery pump (2) and the vacuum pump (7), and the acid water in the water tank (1) flows through the fibre
Dimension film (4) forms the first clear water and condensed water afterwards, and the condensed water flow to first filter paper (5) by second pipeline,
The condensed water forms the first filtrate and the second clear water after first filter paper (5), is collected using the scuttlebutt
First clear water；
Step C uses distilled water flushing after the acid water in the water tank (1) all flows through first filter paper (5)
Then second clear water in the bottle,suction (6) is all poured into the scuttlebutt by first filtrate, will be described clear
Water in bucket flows through second filter paper and is filtered, and forms the second filtrate on second filter paper, uses distillation
Water rinses second filtrate；
First filtrate and second filtrate are dried, weigh by step D, according to first filtrate and
The coke powder that known sampling amount is calculated in delayed coking acid water in the gross mass and step A of second filtrate contains
Amount.
4. according to the method described in claim 3, it is characterized in that, further including in the step A：
The water tank is all poured into using the inner wall of sample bucket described in distilled water flushing and the graduated cylinder, and by the water after flushing
(1)。
5. according to the method described in claim 4, it is characterized in that, in the step A, sample bucket described in distilled water flushing and institute
Graduated cylinder is stated to repeat according to 4 times or 5 times.
6. according to the method described in claim 5, it is characterized in that, in the step C, rinsed for 4 times using distillation moisture described in
First filtrate, the adjacent interval 20s~40s that rinses twice are carried out.
7. the method according to any one of claim 3~6, which is characterized in that in the step A, before sampling,
The sample tap is first opened into the 80s~120s that discharges water.
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