CN105571893B - A kind of enclosed sampling device with quick coupling - Google Patents
A kind of enclosed sampling device with quick coupling Download PDFInfo
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- CN105571893B CN105571893B CN201410551461.8A CN201410551461A CN105571893B CN 105571893 B CN105571893 B CN 105571893B CN 201410551461 A CN201410551461 A CN 201410551461A CN 105571893 B CN105571893 B CN 105571893B
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Abstract
The invention discloses a kind of enclosed sampling devices with quick coupling, including sampling expansion bracket, it is respectively arranged with sample tap on sampling expansion bracket, each sample tap is connected by probe tube and is pooled on flange pup joint respectively, flange pup joint is connected with sampling valve, the sampling valve is connected with sampling bottle by flowline, it further include an oil return pipe, the oil return pipe is connected to by a communicating valve with each flowline, the fuel-displaced pipe end is provided with quick coupling sub-assembly, the quick coupling sub-assembly is made of the top connection on flowline and the lower contact on sampling bottle cap, the lower valve body of the lower contact is socketed on the upper valve body of the top connection when sampling, Elastic valve core is opened, it can enclosed sampling.The sampling apparatus of the present invention can recycle the sample in oil return pipe, and ensure the freshness of sampling, and rapidly and efficiently, and whole sealing ensure that the safety of sampling and sample will not be polluted by extraneous medium to entire sampling process.
Description
Technical field
The present invention relates to the sample devices of petrochemical industry, and in particular to a kind of enclosed sampling dress with quick coupling
It sets.
Background technology
Substance in petroleum chemical industry is all much toxic, harmful, volatile substance, such as benzene, gasoline etc..It is logical
In the case of often, when operating personnel sample, the port grinding bottle for being all carries out opened type sampling at sampler.In this way, having
Malicious, harmful, volatile substance, it is easy to be escaped, or be splashed with operating personnel by the open place of port grinding bottle, held very much
Easily operating personnel are damaged, it is very dangerous.Therefore, in sampling, should do the best prevents these media from being made to the safety of personnel
At threat.
Moreover, some existing samplers are easy have sample carryover in the place of outlet, sample easily occurs in air
Rotten, remaining sample can be mixed into the sample of sampling next time, can be had an impact to testing result, cause detection data with
It is not inconsistent actually.It, all can there are certain sample, the second sub-sampling meetings in the duct per sub-sampling or since sampling pipe is long
And then secondary sample is discharged together, so the testing result per sub-sampling is not interfered by previous sample result, takes
Sample result does not have real-time.
Application No. is in the Chinese patent of " CN200820029965.3 ", disclosing, entitled " loss-in-weight-type liquid in storage tank takes
The utility model patent of sample expansion bracket ".Include holder, the top of holder is equipped with floating ball device, and the lower part of holder is equipped with pedestal,
The holder is by being in multiple hollow sealed pipe fittings of state of weightlessness relative to liquid in storage tank through both ends and intermediate pin hole
It is connected to form telescopic structure, constitutes and is equipped with metal tube in the hollow sealing pipe fitting of holder, hollow sealing pipe fitting is equipped with
With repeated hole, holder includes that top link, sampling holder and lower part link, top link are connected with floating ball device, under
Portion's link is connected with pedestal.The setting of outlet is not described in the device, and return duct is not set, in specification
Also it does not refer to, when sampling can remain more sample liquid in the duct, very big for next sampling effect, if directly bleeding off, make
At wastage of material and subsequent processing expense.
Invention content
For the above technical problems, the present invention provides a kind of enclosed sampling device with quick coupling, with
Existing chemical liquid down-sampler is solved when sampling, the problems such as poor sealing is easy to happen leakage and sample contamination,
A kind of enclosed sampling device with quick coupling is devised, oil return pipe is provided with, realizes that closed sampling, sample are entirely taking
It will not be all in contact with the external world during sample and reflux, ensure that the reliability of sampling pattern detection result, prevent leakage
The pollution injured and to working environment is generated to staff, is suitable for the sampling of toxic or perishable liquid material.
A kind of enclosed sampling device with quick coupling, including sampling expansion bracket, sample and are respectively arranged on expansion bracket
Top sample tap, middle part sample tap, lower part sample tap and bottom sample tap, above-mentioned each sample tap are connected simultaneously by probe tube respectively
It is pooled on flange pup joint, flange pup joint is connected with sampling valve, and the sampling valve is connected with sampling bottle by flowline, further includes
One oil return pipe, the oil return pipe are connected to by a communicating valve with each flowline, and the fuel-displaced pipe end is provided with quick coupling group
Component, the quick coupling sub-assembly is by the top connection on flowline and the lower contact group on sampling bottle cap
At there is upper valve body, inner cavity top to be provided with Elastic valve core for top connection, and inner cavity lower part is provided with valve, the Elastic valve core
It is pressed into the valve, the upper valve body lower part is additionally provided with elastic engaging component, and the cutting ferrule of the elastic engaging component passes through bullet
For spring pressing on upper valve body, upper valve body is circumferentially evenly equipped with ball, and the ball is pressed into the valve by the convex block of the cutting ferrule setting
In the connecting cavity of body, the lower contact is provided with lower valve body, and lower valve intracoelomic cavity lower part is provided with Elastic valve core, inner cavity top
It is provided with valve, the Elastic valve core is pressed into the valve, and lower valve body outer wall is provided with card slot, and the lower valve body is socketed in described
In the connecting cavity of upper valve body, the ball is embedded in the card slot.
The lower part of the lower valve body is provided with screw thread as a preferred method, and the threaded portion of lower valve body is across described
The bottle cap of sampling bottle, and be tightened on bottle cap by nut.
The Elastic valve core is mainly made of guide holder, spring and core as a preferred method, and the guide holder is set
It is equipped with pilot hole, described core one end is provided with conical seal, and the other end is provided with guide post, and the guide post of the core passes through
The spring, and can be moved freely in the pilot hole.
The top of the upper valve body is provided with internal thread as a preferred method, and the top connection passes through the interior spiral shell
Line is tightened on the flowline.
The convex block inner face of the cutting ferrule forms the first butting section as a preferred method, and the spring is pressed on institute
It states on butting section, outer end face is the taper surface tilted down.
Upper valve body position corresponding with the cutting ferrule is provided with the second butting section as a preferred method, described
Spring is pressed between first butting section and the second butting section.
The upper valve body is nearby provided with and the cutting ferrule convex block outer end face close to the ball as a preferred method,
Adaptable taper surface, when two taper surfaces are bonded, ball is pressed into connecting cavity by the convex block.
As a preferred method, O-ring seal is additionally provided between the lower valve body and sampling bottle bottleneck end face.
The connecting cavity of the upper valve body is additionally provided with annular close with lower valve body socket part as a preferred method,
Seal, the ring type seal are located at the card slot top.
The present invention is each by, provided with communicating valve, an oil return pipe being used in combination to be connected in series on each flowline
Before sub-sampling, oil return pipe can be first passed through, residual liquid in each flowline is expelled back into fluid reservoir, then started from quick
Joint assemblies go out sample so that sampling each time can keep independence and real-time, not done by previous sample result
It disturbs so that testing result is more accurate, reflects the property indices of the sample of different liquid levels at that time in real time.
Sampling mode is changed, a kind of seal combination sampling bottle with quick coupling, the top connection on flowline are devised
And the lower contact on sampling bottle cap is coordinated, it, can be automatic by elastic engaging component when needing sampling
Sampling bottle is fixed, the Elastic valve core of top connection and the Elastic valve core of lower contact offset, and the inner cavity of lower contact, makes in connection
Liquid can circulate, respective valves can be opened and be sampled, and by sealed connection between upper lower contact, under
Sealed connection between connector and sampling bottle forms sealing state, avoids sample from leaking, especially toxic sample is let out
Leakage, when removing the sampling bottle, spring spool pop-up, top connection and lower contact are sealed, the sampling bottle it is easy to operate,
It can ensure that entire sampling process liquid sample is isolated from the outside world, prevent from touching staff or dirt is caused to working environment
Dye, while sample oxidation deterioration in air is prevented, ensure the accuracy of pattern detection.
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
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the enclosed sampling device with quick coupling；
Fig. 2 is the structural schematic diagram for sampling expansion bracket；
Fig. 3 is the structural schematic diagram that top connection and lower contact coordinate.
Specific implementation mode
The invention discloses a kind of enclosed sampling devices with quick coupling, realize closed sampling, sample is entire
It will not be all in contact with the external world during sampling and reflux, ensure that the reliability of sampling pattern detection result, anti-leak-stopping
Liquid generates the pollution injured and to working environment to staff, is suitable for the sampling of toxic or perishable liquid material.
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described, is shown
So, described is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work belongs to this
Invent the range of protection.
Referring to shown in Fig. 1-3, a kind of enclosed sampling device with quick coupling, including sampling expansion bracket 5, sampling are flexible
Top sample tap 6, middle part sample tap 7, lower part sample tap 8 and bottom sample tap 9, above-mentioned each sample tap are respectively arranged on frame 5
It is connected and is pooled on flange pup joint 2 by probe tube 10 respectively, flange pup joint 2 is connected with sampling valve 3, and the sampling valve 3 is logical
It crosses flowline 31 and is connected with sampling bottle 28, further include an oil return pipe 1, the oil return pipe 1 passes through a communicating valve 30 and each flowline
31 connections, communicating valve 30 is provided on each flowline 31, is used in combination an oil return pipe 31 to be connected in series, each sub-sampling
Before, it can be extracted out from sample tap by the sample of fluid reservoir difference liquid level by pneumatic actuating device, allow the sample of taking-up by returning
Oil pipe 1 flows back into fluid reservoir, and previous sample residual liquid in each flowline can be expelled back into fluid reservoir, work as residual
Liquid row's light after, flowline 31 starts from quick coupling sub-assembly to go out sample so that sampling each time can keep independence
And real-time, it is not interfered by previous sample result so that testing result is more accurate, reflects different liquid levels at that time in real time
Sample property indices, formed a cyclic process, i.e., do not waste raw material, and maintain the leakproofness of sample.
31 end of the flowline is provided with quick coupling sub-assembly, and the quick coupling sub-assembly is by being mounted on flowline
On top connection 32 and mounted on sampling bottle cap 27 on lower contact 33 form, top connection 32 have upper valve body 20, inner cavity
Top is provided with Elastic valve core, and inner cavity lower part is provided with valve 19, and the Elastic valve core is pressed into the upper valve 19, it is described on
20 lower part of valve body is additionally provided with elastic engaging component 22, and the cutting ferrule of the elastic engaging component 22 is pressed on upper valve by spring 16
On body 20, upper valve body 20 is circumferential to be evenly equipped with ball 25, and the ball 25 is pressed into the valve body by the convex block of the cutting ferrule setting
In connecting cavity 23, the lower contact 33 is provided with lower valve body 26, and 26 inner cavity lower part of the lower valve body is provided with Elastic valve core, inner cavity
Top is provided with lower valve 21, and the Elastic valve core is pressed into the lower valve 21, and 26 outer wall of lower valve body is provided with card slot 24, described
Lower valve body 26 is socketed in the connecting cavity 23 of the upper valve body 20, and the ball 25 is embedded in the card slot 24, on flowline 31
Top connection 32 and the lower contact 33 on sampling bottle cap are coordinated, and when needing sampling, pass through elastic engaging structure
Sampling bottle can be fixed automatically for part.
The lower part of the lower valve body 26 is provided with screw thread, and the threaded portion of lower valve body 26 passes through the bottle cap of the sampling bottle
27, and be tightened on bottle cap 27 by nut, the Elastic valve core is mainly made of guide holder 11, spring 12 and core 13, institute
It states guide holder 11 and is provided with pilot hole 29, described 13 one end of core is provided with conical seal 14, and the other end is provided with guide post,
The guide post of the core passes through the spring 12, and can be moved freely in the pilot hole 29, the top of the upper valve body 20
It is provided with internal thread, the top connection 32 is tightened in by the internal thread on the flowline 31, in the convex block of the cutting ferrule
End face forms the first butting section, and the spring 12 is pressed on the butting section, and outer end face is the taper surface tilted down, described
The position corresponding with the cutting ferrule of upper valve body 20 is provided with the second butting section, and the spring 12 is pressed in first butting section
And second between butting section, the upper valve body 20 is nearby provided with close to the ball 25 and is mutually fitted with the cutting ferrule convex block outer end face
The taper surface answered, when two taper surfaces are bonded, ball 25 is pressed into connecting cavity 23 by the convex block, the lower valve body 26 and sampling
O-ring seal 17, connecting cavity 23 and 26 socket part of the lower valve body of the upper valve body 19 are additionally provided between 28 bottleneck end faces of bottle
Divide and be additionally provided with ring type seal 15, the ring type seal 15 is located at 24 top of the card slot.
When the Elastic valve core of top connection 32 and the Elastic valve core of lower contact 33 offset, the inner cavity of lower contact in connection so that
Liquid can circulate, and can open respective valves and be sampled, and by sealed connection between upper lower contact, under connect
Sealed connection between first 33 and sampling bottle 28 forms sealing state, avoids sample from leaking, especially toxic sample is let out
Leakage, when removing sampling bottle 28, the pop-up of spring spool seals top connection 32 and lower contact 33, the sampling bottle 28
It is easy to operate, it can ensure that entire sampling process liquid sample is isolated from the outside world, prevent from touching staff or to building ring
Border pollutes, while preventing sample oxidation deterioration in air, ensures the accuracy of pattern detection.
As can be seen from the above description, it is an advantage of the current invention that 1, be provided with reflux, by last time before every sub-sampling
Sample flow back into fluid reservoir, that is, save raw material, and eliminate influence of the previous sample to this sampling result；2, it will take
Sample mouth is arranged to closed type interface and sampling bottle, can be above and below automatic plugging when connecting sampling bottle and taking out sampling bottle
Connector prevents sample liquid from leaking, while the sampling bottle sealing effect is good, and entire sampling process can be kept to be in sealing state, every
Interference from extraneous factor；3, easy to operate, sampling efficiency is high, and connector can engage automatically, and ability after only correct engagement
Blowing is carried out, serious forgiveness is high, liquid leakage caused by avoiding human error possible or other danger.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (9)
1. a kind of enclosed sampling device with quick coupling, including sampling expansion bracket, sample and are respectively arranged on expansion bracket
Portion's sample tap, middle part sample tap, lower part sample tap and bottom sample tap, above-mentioned each sample tap are connected and are converged by probe tube respectively
Collect on flange pup joint, flange pup joint is connected with sampling valve, and the sampling valve is connected with sampling bottle by flowline, and feature exists
In further including an oil return pipe, the oil return pipe is connected to by a communicating valve with each flowline, and the fuel-displaced pipe end is provided with soon
Quick coupling sub-assembly, the quick coupling sub-assembly by flowline top connection and mounted on sampling bottle cap on
Lower contact forms, and there is upper valve body, inner cavity top to be provided with Elastic valve core for top connection, and inner cavity lower part is provided with valve, described
Elastic valve core is pressed into the valve, and the upper valve body lower part is additionally provided with elastic engaging component, the card of the elastic engaging component
For set by spring compression on upper valve body, upper valve body is circumferentially evenly equipped with ball, and the convex block of the cutting ferrule setting is by the ball pressure
In the connecting cavity for entering the valve body, the lower contact is provided with lower valve body, and lower valve intracoelomic cavity lower part is provided with Elastic valve core,
Inner cavity top is provided with valve, and the Elastic valve core is pressed into the valve, and lower valve body outer wall is provided with card slot, the lower valve body set
It is connected in the connecting cavity of the upper valve body, the ball is embedded in the card slot.
2. a kind of enclosed sampling device with quick coupling according to claim 1, which is characterized in that the lower valve body
Lower part be provided with screw thread, the threaded portion of lower valve body passes through the bottle cap of the sampling bottle, and is tightened on bottle cap by nut.
3. a kind of enclosed sampling device with quick coupling according to claim 1, which is characterized in that the feather valve
Core is mainly made of guide holder, spring and core, and the guide holder is provided with pilot hole, and described core one end is provided with taper
Sealing, the other end are provided with guide post, and the guide post of the core passes through the spring, and can freely be moved in the pilot hole
It is dynamic.
4. a kind of enclosed sampling device with quick coupling according to claim 1, which is characterized in that the upper valve body
Top be provided with internal thread, the top connection is tightened in by the internal thread on the flowline.
5. a kind of enclosed sampling device with quick coupling according to claim 1, which is characterized in that the cutting ferrule
Convex block inner face forms the first butting section, and the spring is pressed on the butting section, and outer end face is the taper surface tilted down.
6. a kind of enclosed sampling device with quick coupling according to claim 5, which is characterized in that the upper valve body
Position corresponding with the cutting ferrule is provided with the second butting section, the spring be pressed in first butting section and second against
Between portion.
7. a kind of enclosed sampling device with quick coupling according to claim 5, which is characterized in that the upper valve body
The taper surface being adapted with the cutting ferrule convex block outer end face, when two taper surfaces are bonded, institute are nearby provided with close to the ball
It states convex block ball is pressed into connecting cavity.
8. a kind of enclosed sampling device with quick coupling according to claim 1 or 2, which is characterized in that under described
It is additionally provided with O-ring seal between valve body and sampling bottle bottleneck end face.
9. a kind of enclosed sampling device with quick coupling according to claim 1, which is characterized in that the upper valve body
Connecting cavity and the lower valve body socket part be additionally provided with ring type seal, the ring type seal is located on the card slot
Portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551461.8A CN105571893B (en) | 2014-10-17 | 2014-10-17 | A kind of enclosed sampling device with quick coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551461.8A CN105571893B (en) | 2014-10-17 | 2014-10-17 | A kind of enclosed sampling device with quick coupling |
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| Publication Number | Publication Date |
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| CN105571893A CN105571893A (en) | 2016-05-11 |
| CN105571893B true CN105571893B (en) | 2018-08-14 |
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| CN201410551461.8A Active CN105571893B (en) | 2014-10-17 | 2014-10-17 | A kind of enclosed sampling device with quick coupling |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000955A (en) * | 2018-09-06 | 2018-12-14 | 河南中托力合化学有限公司 | A kind of pipeline sampling apparatus |
| CN109000979B (en) * | 2018-09-06 | 2024-05-28 | 河南中托力合化学有限公司 | Sampling device suitable for liquid storage tank |
| CN109632407A (en) * | 2019-01-15 | 2019-04-16 | 西安石油大学 | Oil well produced fluid well head closed sampling device and its enclosed sampling method |
| CN114933094B (en) * | 2022-07-21 | 2022-09-30 | 山东港源管道物流有限公司 | Crude oil sample storage device and use method thereof |
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| CN102392480A (en) * | 2011-08-04 | 2012-03-28 | 虞吉伟 | Cleaning injection water-saving valve |
| CN102872487A (en) * | 2012-10-22 | 2013-01-16 | 贝恩医疗设备(广州)有限公司 | Check valve for dialysis and one-way control device for dialysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104231A (en) * | 1980-01-23 | 1981-08-19 | Oval Eng Co Ltd | Sampling apparatus |
| JPS60233529A (en) * | 1984-05-02 | 1985-11-20 | Osaka Gas Co Ltd | Device for collecting liquid sample |
| US6286880B1 (en) * | 1999-05-18 | 2001-09-11 | David W. Pratt | Bailer having leak-inhibiting cushioned seal |
| CN201251523Y (en) * | 2008-08-06 | 2009-06-03 | 孙子固 | Weightlessness storage tank liquid sampling retractable bracket |
| CN102081016A (en) * | 2011-02-21 | 2011-06-01 | 中国石油化工股份有限公司 | Method for multistage sampling of floating-roof oil tank |
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| CN105571893A (en) | 2016-05-11 |
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