CN207908225U - A kind of Trunk Line outer circulation sampler - Google Patents
A kind of Trunk Line outer circulation sampler Download PDFInfo
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- CN207908225U CN207908225U CN201820327337.7U CN201820327337U CN207908225U CN 207908225 U CN207908225 U CN 207908225U CN 201820327337 U CN201820327337 U CN 201820327337U CN 207908225 U CN207908225 U CN 207908225U
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Abstract
A kind of Trunk Line outer circulation sampler, belongs to sampling system technical field.It is characterized in that：Sampling module（1）Inside it is provided with input channel（102）The return flow line and（103）, input channel（102）Output end and return flow line（103）Input terminal be arranged at sampling module interconnecting piece（101）On end face, sampling module interconnecting piece（101）End face and sampling valve（8）Valve core chamber every setting；Input channel（102）Input terminal be connected with probe tube（2）, probe tube（2）Input terminal be arranged in the middle part of medium delivery pipe road, and probe tube（2）Input terminal direction with media flow direction on the contrary, return flow line（103）Output end be connected with return duct（3）, return duct（3）Output end be arranged in the side of medium delivery pipe.This Trunk Line outer circulation sampler ensures to open that valve gets is exactly fresh dielectric sample at any time when sampling, and the sample of taking-up is representative.
Description
Technical field
A kind of Trunk Line outer circulation sampler, belongs to sampling system technical field.
Background technology
It, can be in Chemical Manufacture by the operation of the technological processes such as catalysis reaction in the production process of chemical production device
Links there is different media, have plenty of conventional chemical medium, have plenty of poisonous and hazardous chemical medium.These are changed
The Chemical Manufacture that enter next link that work medium has, some enter stocking system as finished product.In the every of chemical products
In the production process of one production, in order to produce the qualified products of more high quality it is necessary to the change to each production link
The ingredient of chemical product and the content of medium carry out assay, to ensure that the chemical products of production reach certain standard, in this way
The technical process link pipeline for controlling chemical medium ingredient will be needed to be sampled analysis in process of producing product, in chemical industry
When the medium sampling of process units, has plenty of and be sampled using the mode of pipeline connection shut-off valve direct sample, having plenty of makes
The sampler simply assembled with Partial joints, pipeline, flange and steel cylinder is stored in chemical medium sample inside sampling bottle again
Assay is carried out to laboratory, such sampling mode is troublesome in poeration, and can not ensure the medium that the sample got is fresh
Sample, and then can not ensure that the sample taken out is representative.
Invention content
The technical problems to be solved in the utility model is：Operation side when overcoming the deficiencies of the prior art and provide a kind of sampling
Just it, can ensure that the sample got is the Trunk Line outer circulation sampler of fresh medium.
Technical solution adopted by the utility model to solve its technical problems is：The Trunk Line outer circulation sampler, it is special
Sign is：Including sampling module and sampling valve, the side of sampling module is provided with the sampling mold being connected with sampling valve input terminal
Block interconnecting piece is provided with input channel and return flow line, the output end of input channel and the input of return flow line in sampling module
End is arranged on sampling module connection end surface, and sampling module connects the valve core chamber of end surface and sampling valve every setting；
The input terminal of input channel is connected with probe tube, and the input terminal of probe tube is arranged in the middle part of medium delivery pipe road, and
The direction of the input terminal of probe tube with media flow direction on the contrary, the output end of return flow line is connected with return duct, return duct
Output end is arranged in the side of medium delivery pipe.
Preferably, the output end of the return duct is from the gradual media flow direction into medium delivery pipe in end to middle part
It tilts.
Preferably, the end face of the sampling module interconnecting piece is the spherical shape of middle part indent.
Preferably, it is provided with input shut-off valve between the input terminal and probe tube of the input channel, return flow line
Backflow non-return valve is provided between output end and return duct.
Preferably, the input shut-off valve includes the input valve chamber and input spool being arranged in sampling module side,
The input terminal of input channel and the output end of probe tube are connected to input valve chamber, and input spool connects with sampling module sliding
It connects, input spool end set has input channel closure part.
Preferably, the backflow non-return valve includes the reflux valve chamber and return spool being arranged in sampling module side,
The output end of return flow line and the input terminal of return duct are connected to reflux valve chamber, and return spool connects with sampling module sliding
It connects, return spool end set has input channel closure part.
Preferably, the sampling valve is ball valve.
Compared with prior art, advantageous effect possessed by the utility model is：
1, this Trunk Line outer circulation sampler probe tube input terminal be arranged in the middle part of medium delivery pipe road, return duct it is defeated
Outlet is arranged in medium delivery pipe road side, and when being flowed in pipeline using liquid, the flow velocity of pipe centerline is maximum, at tube wall
The almost nil feature of flow velocity, so that liquid medium is entered sampling module via probe tube, be then back to again through return duct
Medium delivery pipe road forms cycle, and to ensure to open at any time when sampling, valve gets is exactly fresh dielectric sample, moreover it is possible to
Medium is set to be recycled by sampling module under extremely cold environment, and the sample taken out is representative.
2, the output end of return duct is skewed, to facilitate medium to be flowed out in medium delivery pipe road by return duct.
3, the end face of sampling module interconnecting piece is the spherical shape of middle part indent, ensure that be formed between the spool of sampling valve and use
In the cavity for making input channel output end be connected to return flow line input terminal, ensure to open that valve gets is exactly at any time when sampling
Fresh dielectric sample.
4, probe tube and return duct can be made to close by inputting shut-off valve and backflow non-return valve, conveniently in process of production
It replaces Sampling ball valve or increases configuration, need to only close input shut-off valve and backflow non-return valve can carry out the work of next step,
The production run of process units is not influenced.
Description of the drawings
Fig. 1 is the main view schematic cross-sectional view of Trunk Line outer circulation sampler.
Fig. 2 is the connection diagram for purging module and sampling bottle.
Fig. 3 is the structural schematic diagram for purging module.
Fig. 4 is the schematic front view of sampling bottle mounting bracket.
In figure：1, sampling module 101, sampling module interconnecting piece 102, input channel 103, return flow line 104, reflux
Valve chamber 105, input valve chamber 106, ring flange 2, probe tube 3, return duct 4, input mounting plate 5, input pressing plate 6, purging
Module 601, pipe connection portion 602, sampling channel 603, purge passage 604, valve interconnecting piece 605, emptying channel 7,
Input spool 8, sampling valve 9, reflux pressing plate 10, reflux mounting plate 11, return spool 12, sealing element 1201, sealing element
Interconnecting piece 1202, sealing 13, sampling bottle 14, upper protective cover 1401, holding portion 15, lower protective cover 16, holddown spring
17, pedestal 18, articulated shaft.
Specific implementation mode
Fig. 1 ~ 4 are the most preferred embodiments of the utility model, and 1 ~ 4 pair of the utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
A kind of Trunk Line outer circulation sampler, including sampling module 1 and sampling valve 8, the side of sampling module 1 are provided with
The sampling module interconnecting piece 101 being connected with 8 input terminal of sampling valve is provided with input channel 102 and return flow line in sampling module 1
103, the output end of input channel 102 and the input terminal of return flow line 103 are arranged on 101 end face of sampling module interconnecting piece,
The valve core chamber of 101 end face of sampling module interconnecting piece and sampling valve 8 is every setting；The input terminal of input channel 102 is connected with probe tube
2, the input terminal of probe tube 2 is arranged in the middle part of medium delivery pipe road, and the direction of the input terminal of probe tube 2 and media flow direction
On the contrary, the output end of return flow line 103 is connected with return duct 3, the output end of return duct 3 is arranged in the side of medium delivery pipe.
2 input terminal of probe tube of this Trunk Line outer circulation sampler is arranged in the middle part of medium delivery pipe road, and the output end of return duct 3 is arranged
In medium delivery pipe road side, when being flowed in pipeline using liquid, the flow velocity of pipe centerline is maximum, and the flow velocity at tube wall is several
The characteristics of being zero, makes liquid medium enter sampling module 1 via probe tube 2, and it is defeated then through return duct 3 to be back to medium again
It send pipeline, forms cycle, valve gets is exactly fresh dielectric sample to ensure to open at any time when sampling, moreover it is possible to extreme
Medium is set to be recycled by sampling module under cold environment, and the sample taken out is representative.
The utility model is described further with reference to specific embodiment, however persons familiar with the art should
Solution, is to preferably explain here in connection with the detailed description that attached drawing provides, the structure of the utility model has necessarily had exceeded
These embodiments of limit, and for some equivalents or common approach, it is no longer described in detail herein, but still fall within this
The protection domain of application.
Specifically：As shown in Figure 1：Sampling module 1 be it is horizontally disposed cylindric or rectangular rod-shaped, in the present embodiment,
Sampling module 1 is horizontally disposed cylindric.The right side of sampling module 1 is provided with sampling module interconnecting piece 101, and sampling module connects
Socket part 101 is horizontally disposed cylindric, and the outer wall of sampling module interconnecting piece 101 is provided with screw thread, sampling module connection
Portion 101 stretches into the input terminal of sampling valve 8 and is threadedly coupled with the input terminal of sampling valve 8.Left end around sampling module 1 is provided with
Ring flange 106.In the present embodiment, sampling valve 8 is ball valve.Sampling valve 8 can also be plate valve.
The downside in return flow line 103 is arranged in input channel 102, and the right end of input channel 102 is output end, return flow line
103 right end is input terminal, and the output end of input channel 102 and the input terminal of return flow line 103 are arranged at sampling module company
On the end face of socket part 101, the end face of sampling module interconnecting piece 101 is the spherical shape of middle part indent.The end of sampling module interconnecting piece 101
The valve core chamber of face and sampling valve 8 makes input channel every setting, to be formed between 101 end face of sampling module interconnecting piece and spool
The cavity that 102 output end is connected with the input terminal of return flow line 103.Medium is flowed by input channel 102, and logical through flowing back
Road 103 flows out, and to make medium form cycle, ensures that it is exactly fresh sample that it is collected, which to open sampling valve 8, and then guarantee
Sample is representative.
The input terminal of input channel 102 is provided with input shut-off valve, and the output end of return flow line 103 is provided with reflux cut-off
Valve, input shut-off valve facilitate the break-make of control input channel 102, backflow non-return valve to facilitate the break-make of control return flow line 103, into
And it is convenient for changing sampling valve 8 or increases equipment.In the present embodiment, the setting of input shut-off valve is cut in 1 downside of sampling module, reflux
Only valve setting is in 1 upside of sampling module.
Input sampling valve includes the input valve chamber 105 and input spool 7 being arranged in 1 downside of sampling module, inputs valve chamber
105 be the blind round hole being radially arranged along sampling module 1, and the lower middle side part in sampling module 1 is arranged in input valve chamber 105, inputs
Channel 102 is arranged in the inside of input valve chamber 105, and the direction of the input terminal of input channel 102 to close input valve chamber 105 is curved
Folding makes the input terminal of input channel 102 be connected to the inside of input valve chamber 105.The open-position-side for inputting valve chamber 105 is pacified by inputting
Loading board 4, input mounting plate 4 are fixedly connected by screw with sampling module 1, and the open-position-side for inputting valve chamber 105 are closed, input
Spool 7 is coaxially disposed with input valve chamber 105, and the inner end of input spool 7 is stretched into input valve chamber 105, and outer end passes through input to install
Plate 4 simultaneously stretches out, and inputs spool 7 and be slidably connected with input mounting plate 4.The diameter for inputting spool 7 is more than the straight of input channel 102
The inner end of diameter, input spool 7 is the spherical shape of middle part evagination, is formed for by 102 closed closure part of input channel.
The outer end of input spool 7 is equipped with input pressing plate 5, and input pressing plate 5 is fixedly connected with input spool 7.Flow into input
The liquid medium in channel 102 pushes input spool 7 to move out, and to open input channel 102, pressing input pressing plate 5 can
So that input spool 7 closes input channel 102.It can be covered on input pressing plate 5 and the input spool 7 inputted between mounting plate 4
If spring, to make input channel 102 be maintained open state.It is provided with limit spiral shell on input spool 7 in input valve chamber 105
It is female.
Reflux sampling valve includes the reflux valve chamber 104 and return spool 11 being arranged in 1 downside of sampling module, and flow back valve chamber
104 be the blind round hole being radially arranged along sampling module 1, and middle side part is arranged on sampling module 1 in reflux valve chamber 104, and reflux is logical
Road 103 is arranged in the inside of reflux valve chamber 104, and the direction of the output end of return flow line 103 to close reflux valve chamber 104 is curved
Folding makes the input terminal of return flow line 103 be connected to the inside of reflux valve chamber 104.The open-position-side of reflux valve chamber 104 passes through to flow back and pacify
Loading board 10, reflux mounting plate 10 are fixedly connected by screw with sampling module 1, and the open-position-side for the valve chamber 104 that flows back is closed, and are returned
Flow valve core 11 is coaxially disposed with reflux valve chamber 104, and the inner end of return spool 11 is stretched into reflux valve chamber 104, and outer end passes through reflux
Mounting plate 10 simultaneously stretches out, and return spool 11 is slidably connected with reflux mounting plate 10.It is logical that the diameter of return spool 11 is more than reflux
The diameter in road 103, the inner end of return spool 11 are the spherical shape of middle part evagination, are formed for by 103 closed closure of return flow line
Portion.
The outer end of return spool 11 is equipped with reflux pressing plate 9, and reflux pressing plate 9 is fixedly connected with return spool 11.It flows into back
The liquid medium of circulation road 103 pushes return spool 11 to move out, to which return flow line 103 be opened, pressing reflux pressing plate 9
Return spool 11 can be made to close return flow line 103.It can on the return spool 11 to flow back between pressing plate 9 and the mounting plate 10 that flows back
With sheathed spring, to make return flow line 103 be maintained open state.It is arranged on return spool 11 in reflux valve chamber 103 limited
Position nut.
The left lower of sampling module 1 is provided with sampling channel docking section, is provided with around sampling channel docking section inner wall
Screw thread, the right end for sampling channel docking section are connected to input valve chamber 105, and the input terminal of probe tube 2 stretches into input channel docking section
It is interior and be connected with input channel docking section.The left upper portion of sampling module 1 is provided with return flow line docking section, around return flow line
Docking section inner wall is provided with screw thread, and the right end of return flow line docking section is connected to reflux valve chamber 104, and the right end of return duct 3 stretches into
It is connected in the docking section of return flow line and with return flow line docking section.
The left end of probe tube 2 is input terminal, and the input terminal of probe tube 2 is bent downward, when in medium delivery pipe,
So that the input terminal of probe tube 2 is arranged at the middle part of medium delivery pipe, and the direction of the input terminal of probe tube 2 in medium delivery pipe
The flow direction of medium is on the contrary, so as to make medium preferably enter in probe tube 2.
The output end of return duct 3 is arranged in the side of medium delivery pipe, and the output end of return duct 3 is gradual from left to right
Upward is skewed, and the medium in flow direction and medium delivery pipe to make the output end of return duct 3 flows to identical, makes return duct
Medium in 3 is faster flow in medium delivery pipe road.
As shown in Fig. 2 ~ 3：The output end of sampling valve 8 is connected with purging module 6, sealing element 12 and sampling bottle 13 in turn.
Purging module 6 include purging module bodies and be arranged purging module bodies on sampling channel 602, purge passage 603 with
And emptying channel 605.The upper end of sampling module main body is provided with columned valve interconnecting piece 604, under sampling module main body
End is provided with columned pipe connection portion 601, around the outer wall of valve interconnecting piece 604 and around pipe connection portion 601
Outer wall is both provided with screw thread.
The input terminal in sampling channel 602 is arranged on the end face of valve interconnecting piece 604, and the output end in sampling channel 602 is set
It sets on the end face of pipe connection portion 601.The butt end of purge passage 603 is arranged on the right side of the middle part of purging module bodies, blows
The other end for sweeping channel 603 is arranged on the end face of valve interconnecting piece 604.The input terminal setting for emptying channel 605 connects in pipeline
On the end face of socket part 601, the output end in emptying channel 605 is arranged on the left of the middle part of purging module bodies.
The upper surface of valve interconnecting piece 604 be middle part indent spherical shape, after being connect with valve can valve spool and
The cavity for being connected in sampling channel 602 with purge passage 603 is formed between the end face of valve interconnecting piece 604.
The butt end of purge passage 603 is provided with the diameter that diameter is more than middle part, in the butt end of purge passage 603
Purge passage docking section is formed, purge passage docking section inner wall is provided with screw thread, empties the diameter of the output end in channel 605
More than the diameter at middle part, to form emptying channel docking section in the output end in emptying channel 605, around emptying channel docking section
It is provided with screw thread, convenience is docked with pipeline.
The valve interconnecting piece 604 of purging module 6 is threadedly coupled with the output end of sampling valve 8, and the valve for purging module 6 connects
The end face of socket part 604 and the valve core chamber of sampling valve 8 are every setting, to make sampling channel 602 be connected to purge passage 603.
Sealing element 12 is the cylinder of polytetrafluoroethylene (PTFE) material, and the upper-end inner diameter of sealing element 12 is more than end internal diameter, in sealing element
12 upper ends form sealing element interconnecting piece 1201, and the lower end of sealing element 12 is the sealing of the taper from top to bottom reduced between outer diameter
1202, the diameter of 1202 lower end of sealing is less than the diameter of 13 bottleneck of sampling bottle, and the diameter of 1202 upper end of sealing is more than sampling
The diameter of 13 bottlenecks of bottle, it is good with the bottle sealing effect of sampling bottle 13 to ensure, and can adapt to taking in different bores
Sealing when sample bottle 13 samples, the leakage of dielectric gas when preventing from sampling effectively improve gas sampled to sampling personnel's body
Pollution of the influence and gas sampled of body health to surrounding air.
Purging module 6 601 lower end of pipe connection portion stretch into sealing element interconnecting piece 1201, and with sealing element interconnecting piece
1201 are tightly connected, and the bottleneck of sampling bottle 13 is stretched into the lower part of sealing 1202, so as to the bottle sealing with sampling bottle 13
Connection.
As shown in Figure 4：Sampling bottle mounting bracket includes upper protective cover 14, lower protective cover 15 and pedestal 17, upper protective cover 14
The diameter of upper end is less than the diameter of lower end, and the middle part of upper protective cover 14 is the from top to bottom gradual increased arc of diameter.Upper guarantor
The internal diameter of 14 lower part of shield is more than the outer diameter of 13 lower part of sampling bottle, and the internal diameter on 14 top of upper protective cover is more than 13 top of sampling bottle
Outer diameter and the outer diameter for being less than 13 lower part of sampling bottle.Lower protective cover 15 is the cylinder of lower end closed, and the internal diameter of lower protective cover 15 is more than
The lower end of the outer diameter of 14 lower part of upper protective cover, upper protective cover 14 is stretched into lower protective cover 15 and by articulated shaft 18 and lower protective cover
15 rotation connections.Pedestal 17 includes the disk of the column and column at middle part or more both sides, the blind end setting of lower protective cover 15
There is mounting hole, be slidably arranged in mounting hole in the middle part of column, between the disk and the blind end of lower protective cover 15 on the upside of column
It is provided with holddown spring 16, so as to make the sampling bottle 13 on the disk being placed on the upside of column compress sealing element 12.
The upper end of upper protective cover 14 is provided with holding portion 1401, and the diameter in holding portion 1401 is equal to or slightly less than sealing element 12
The inner wall of the outer diameter on top, holding portion 1401 is arranged at intervals with multiple annular grooves.
The application method of the Trunk Line outer circulation sampler is as follows：Upper protective cover 14 is rotated first, and sampling bottle 13 is put
It sets on the disk on the upside of column, upper protective cover 14 and sealing element 12 is then passed through into 1401 clamping of holding portion.Liquid medium according to
It is secondary to form cycle by probe tube 2, input channel 102, return flow line 103 and return duct 3.
When need sampling when, open sampling valve 8, and by the input terminal of purge passage 603 and emptying channel 605 output end
Closing, sampling channel 602 of the liquid medium by purging module 6 enter in sampling bottle 13.
After the completion of sampling, sampling valve 8 is closed, nitrogen, nitrogen are passed through into purge passage 603 by purge passage docking section
It is entered in the cavity between 8 spool of valve interconnecting piece 604 and sampling valve by purge passage 603, it is then logical by sampling again
Road 602 enters in the cavity on 13 top of sampling bottle, is then blown out again by emptying channel 605, and heel row is adsorbed by adsorption tanks
Go out, complete sampling operation, avoids in sampling bottle 13 or there are liquid mediums in pipeline.
When needing replacing sampling valve 8, input spool 7 and return spool 11 are inwardly pushed, by input channel 102 and reflux
Channel 103 is closed, and sampling valve 8 is then replaced, and input spool 7 and return spool 11 are unclamped after replacement.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example
Protect range.
Claims (7)
1. a kind of Trunk Line outer circulation sampler, it is characterised in that：Including sampling module（1）And sampling valve（8）, sampling module
（1）Side be provided with and sampling valve（8）The connected sampling module interconnecting piece of input terminal（101）, sampling module（1）Inside it is provided with
Input channel（102）The return flow line and（103）, input channel（102）Output end and return flow line（103）Input terminal be all provided with
It sets in sampling module interconnecting piece（101）On end face, sampling module interconnecting piece（101）End face and sampling valve（8）Valve core chamber every setting
It sets；
Input channel（102）Input terminal be connected with probe tube（2）, probe tube（2）Input terminal be arranged in medium delivery pipe road
Middle part, and probe tube（2）Input terminal direction with media flow direction in medium delivery pipe on the contrary, return flow line（103）'s
Output end is connected with return duct（3）, return duct（3）Output end be arranged in the side of medium delivery pipe.
2. Trunk Line outer circulation sampler according to claim 1, it is characterised in that：The return duct（3）Output
From end to middle part, gradually into medium delivery pipe, media flow direction tilts at end.
3. Trunk Line outer circulation sampler according to claim 1, it is characterised in that：The sampling module interconnecting piece
（101）End face be middle part indent spherical shape.
4. Trunk Line outer circulation sampler according to claim 1, it is characterised in that：The input channel（102）'s
Input terminal and probe tube（2）Between be provided with input shut-off valve, return flow line（103）Output end and return duct（3）Between set
It is equipped with backflow non-return valve.
5. Trunk Line outer circulation sampler according to claim 4, it is characterised in that：The input shut-off valve includes setting
It sets in sampling module（1）The input valve chamber of side（105）And input spool（7）, input channel（102）Input terminal and take
Sample pipe（2）Output end with input valve chamber（105）Connection inputs spool（7）With sampling module（1）It is slidably connected, transfer valve
Core（7）End set has input channel closure part.
6. Trunk Line outer circulation sampler according to claim 4, it is characterised in that：The backflow non-return valve includes setting
It sets in sampling module（1）The reflux valve chamber of side（104）And return spool（11）, return flow line（103）Output end and
Return duct（3）Input terminal with reflux valve chamber（104）Connection, return spool（11）With sampling module（1）It is slidably connected, flows back
Spool（11）End set has input channel closure part.
7. Trunk Line outer circulation sampler according to claim 1, it is characterised in that：The sampling valve（8）For ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327337.7U CN207908225U (en) | 2018-03-10 | 2018-03-10 | A kind of Trunk Line outer circulation sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327337.7U CN207908225U (en) | 2018-03-10 | 2018-03-10 | A kind of Trunk Line outer circulation sampler |
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| Publication Number | Publication Date |
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| CN207908225U true CN207908225U (en) | 2018-09-25 |
Family
ID=63558014
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820327337.7U Expired - Fee Related CN207908225U (en) | 2018-03-10 | 2018-03-10 | A kind of Trunk Line outer circulation sampler |
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| Country | Link |
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| CN (1) | CN207908225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297764A (en) * | 2018-12-03 | 2019-02-01 | 淄博绿丁环保设备技术有限公司 | A kind of micro-pressure single-point type sample detection system |
| CN110553966A (en) * | 2019-07-10 | 2019-12-10 | 西安成立航空制造有限公司 | Tool and method for measuring certain type of oil filtering flow resistance |
| CN113074986A (en) * | 2021-03-23 | 2021-07-06 | 华润电力（渤海新区）有限公司 | Fluid sampling device and sampling tube heat tracing device |
-
2018
- 2018-03-10 CN CN201820327337.7U patent/CN207908225U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297764A (en) * | 2018-12-03 | 2019-02-01 | 淄博绿丁环保设备技术有限公司 | A kind of micro-pressure single-point type sample detection system |
| CN109297764B (en) * | 2018-12-03 | 2020-12-22 | 淄博绿丁环保设备技术有限公司 | Micro-pressure single-point sampling detection system |
| CN110553966A (en) * | 2019-07-10 | 2019-12-10 | 西安成立航空制造有限公司 | Tool and method for measuring certain type of oil filtering flow resistance |
| CN113074986A (en) * | 2021-03-23 | 2021-07-06 | 华润电力（渤海新区）有限公司 | Fluid sampling device and sampling tube heat tracing device |
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Granted publication date: 20180925 Termination date: 20190310 |