CN207964388U - A kind of gas sampling device - Google Patents
A kind of gas sampling device Download PDFInfo
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- CN207964388U CN207964388U CN201820327340.9U CN201820327340U CN207964388U CN 207964388 U CN207964388 U CN 207964388U CN 201820327340 U CN201820327340 U CN 201820327340U CN 207964388 U CN207964388 U CN 207964388U
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Abstract
A kind of gas sampling device belongs to sampling system technical field.It is characterized in that：Sampling steel cylinder（9）Input terminal is connected with steel cylinder transfer valve（7）, sampling steel cylinder（9）Output end be connected with steel cylinder delivery valve（10）, input sampling valve（5）Output end and steel cylinder transfer valve（7）Input terminal connection, steel cylinder delivery valve（10）Output end with output sampling valve（11）Input terminal connection, steel cylinder transfer valve（7）Input terminal and steel cylinder delivery valve（10）Output end pass through outer circulating tube（8）Connection inputs sampling valve（5）Output end be also associated with scavenging conduit（3）, scavenging conduit（3）On be provided with blow down valve（4）, export sampling valve（11）Input terminal be also associated with evacuated tube（13）, evacuated tube（13）On be provided with exhaust-valve（12）.This gas sampling device eliminates discharge health injury and the problem of to the pollution of surrounding air caused by sampling personnel because of chemical medium.
Description
Technical field
A kind of gas sampling device belongs to sampling system technical field.
Background technology
It, can be in each of Chemical Manufacture in the technological process of after chemical reaction in the production process of chemical production device
There is different gas in a link, has plenty of conventional chemical gases, has plenty of poisonous and hazardous chemical gases.These chemical industry gas
The Chemical Manufacture that enter next link that body has, what is had will carry out discharging or enter processing system.In the life of chemical products
During production, in order to the more high quality of output qualified products it is necessary to the ingredient and medium to each production link medium
Content carry out assay, with ensure production chemical products reach certain standard, thus will be in process of producing product
In media flow pipeline be sampled analysis, in the gas sample of chemical production device, have plenty of using pipeline connection cut
Only the mode of valve direct sample is sampled, and is had plenty of using Partial joints, pipeline, flange, the sampling simply assembled with steel cylinder
Device is stored in chemical gases medium samples inside sampling steel cylinder and carries out assay to laboratory.Sampling mode above exists
The dielectric gas that part pipeline is detained cannot carry out discharging when dismantling sampling steel cylinder and carry out whole process using nitrogen well
The problem of purge of no dead angle is easy to damage the health for sampling personnel, these aerial changes of discharge
Work gas can also cause environment certain pollution.
Invention content
The technical problems to be solved in the utility model is：Overcoming the deficiencies of the prior art and provide one kind can make in pipeline
Medium drain, solve the problems, such as the gas sampling device that the medium that part pipeline is detained cannot discharge very well in sampling.
Technical solution adopted by the utility model to solve its technical problems is：The gas sampling device, it is characterised in that：
It is connected with steel cylinder transfer valve, sampling steel cylinder including sampling steel cylinder, input sampling valve and output sampling valve, sampling steel cylinder input terminal
Output end be connected with steel cylinder delivery valve, the output end for inputting sampling valve is connected to the input terminal of steel cylinder transfer valve, steel cylinder output
The output end of valve is connected to the input terminal of output sampling valve, and the output end of the input terminal and steel cylinder delivery valve of steel cylinder transfer valve passes through
Outer circulating tube is connected to, and the output end for inputting sampling valve is also associated with scavenging conduit, and blow down valve is provided on scavenging conduit, exports sampling valve
Input terminal be also associated with evacuated tube, be provided with exhaust-valve in evacuated tube.
Preferably, it is provided with check-valves on the outer circulating tube.
Preferably, the input terminal of the input sampling valve is connected with probe tube, and the output end for exporting sampling valve is connected with
Return duct, the input terminal for inputting sampling valve are connected to the output end of output sampling valve by communicating pipe.
Preferably, it is provided with sampling shut-off valve on the communicating pipe.
Preferably, the input terminal of the input sampling valve and the output end of output sampling valve are respectively connected with sampling module,
Input channel and return flow line are equipped on each sampling module, and input channel and return flow line are defeated with input sampling valve
Enter end connection, probe tube is connected to by the input channel of respective side with input sampling valve, and return duct is logical by the reflux of respective side
Road is connected to output sampling valve, and communicating pipe will input the input of the return flow line and output sampling valve output end of sampling valve input terminal
Channel is connected to.
Preferably, each sampling module is equipped with columned sampling module interconnecting piece close to one end of spool,
The end face of sampling module interconnecting piece is the spherical shape of middle part indent, and input channel and return flow line are arranged at close to one end of spool
On the end face of sampling module interconnecting piece.
Preferably, the input terminal of the input sampling valve and the output end of output sampling valve are respectively connected with purging module,
It is equipped with sampling channel and purge passage in each purging module, and it is defeated with input sampling valve to sample channel and purge passage
Outlet is connected to, and the input terminal of steel cylinder transfer valve is connected by the sampling channel of respective side with input sampling valve, steel cylinder delivery valve
Output end be connected with output sampling valve by the sampling channel of respective side, scavenging conduit by the purge passage of respective side with it is defeated
Enter sampling valve connection, evacuated tube is connected by the purge passage of respective side with output sampling valve.
Preferably, each purging module is equipped with columned valve interconnecting piece, valve close to one end of spool
The end face of interconnecting piece is the arc of middle part indent, and sampling channel is arranged at valve close to one end of spool with purge passage and connects
On end surface.
Preferably, the input sampling valve and output sampling valve are ball valve.
Compared with prior art, advantageous effect possessed by the utility model is：
1, this gas sampling device is provided with scavenging conduit and evacuated tube, and scavenging conduit can will be in pipeline by outer circulating tube
Gas medium is discharged by evacuated tube, and the medium that retains in the pipeline between connection sampling steel cylinder and input sampling valve is completely blown
It sweeps in the container of specified retracting device or the specified poisonous and harmful medium of processing, eliminates the discharge pair because of chemical medium
Health injury caused by sampling personnel and the problem of to the pollution of surrounding air.
2, check-valves can avoid gas medium from being flowed back by outer circulating tube in sampling, and outer circulating tube is avoided to cause sampling
It interferes.
3, return duct can be such that gas medium is followed in the output end formation of the input terminal and sampling delivery valve of sampling transfer valve
Ring, to ensure to open at any time when sampling, valve gets is exactly fresh dielectric sample, moreover it is possible to make under extremely cold environment
Medium is recycled by sampling module, prevent sampling when due to gas medium in contain liquid solidification or liquid medium solidify shadow
Ring sampling.
4, shut-off valve can control the break-make of communicating pipe, so as to make gas quickly into going to sampling steel cylinder in sampling
It is interior.
5, input channel and return flow line are connected to by the cavity between sampling module interconnecting piece and spool, and medium is sampling
Cavity between module and the spool of valve carries out circulation cycle, and to ensure to open at any time when sampling, valve gets is exactly new
Fresh dielectric sample.
6, sampling channel is connected to purge passage by the cavity between valve interconnecting piece and the spool of valve, is being sampled
Cheng Hou, into purge passage being passed through gas purges pipeline, and the medium at the spool of valve and in pipeline is made all to arrange
Go out, avoids the problem that the medium being detained there are part pipeline cannot be discharged well in sampling.
Description of the drawings
Fig. 1 is the structural schematic diagram of gas sampling device.
Fig. 2 is the main view schematic cross-sectional view of sampling module.
Fig. 3 is the main view schematic cross-sectional view for purging module.
Fig. 4 is the connection diagram for inputting sampling valve and sampling module and purging module.
Fig. 5 is the connection diagram of sampling steel cylinder.
Fig. 6 is that the right side of liquid sampling module in embodiment 2 regards schematic cross-sectional view.
Fig. 7 is the vertical view schematic cross-sectional view of sampling module in embodiment 2.
Fig. 8 is the structural schematic diagram of sampler in embodiment 2.
Fig. 9 is the main view schematic cross-sectional view that module is purged in embodiment 2.
Figure 10 is the schematic front view of sampling bottle mounting bracket in embodiment 2.
In figure：1, sampling module 101, sampling module interconnecting piece 102, input channel 103, return flow line 2, take
Sample pipe 3, scavenging conduit 4, blow down valve 5, input sampling valve 6, purging module 601, pipe connection portion 602, sampling
Channel 603, purge passage 604, valve interconnecting piece 605, emptying channel 7, steel cylinder transfer valve 8, outer circulating tube
9, sampling steel cylinder 901, input connecting cylinder 902, output connecting cylinder 10, steel cylinder delivery valve 11, output sampling valve 12,
Exhaust-valve 13, evacuated tube 14, adsorption tanks 15, return duct 16, check-valves 17, sealing element 1701, sealing element connect
Socket part 1702, sealing 18, sampling bottle 19, upper protective cover 1901, holding portion 20, lower protective cover 21, spring
22, pedestal 23, articulated shaft.
Specific implementation mode
Fig. 1 ~ 5 are the most preferred embodiments of the utility model, and 1 ~ 10 pair of the utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
A kind of gas sampling device, including sampling steel cylinder 9, input sampling valve 5 and output sampling valve 11, sampling steel cylinder 9
Input terminal is connected with steel cylinder transfer valve 7, and the output end of sampling steel cylinder 9 is connected with steel cylinder delivery valve 10, inputs the output of sampling valve 5
End is connected to the input terminal of steel cylinder transfer valve 7, and the output end of steel cylinder delivery valve 10 is connected to the input terminal of output sampling valve 11, steel
The input terminal of bottle transfer valve 7 is connected to the output end of steel cylinder delivery valve 10 by outer circulating tube 8, and the output end of sampling valve 5 is inputted
It is also associated with scavenging conduit 3, blow down valve 4 is provided on scavenging conduit 3, the input terminal of output sampling valve 11 is also associated with evacuated tube 13,
Exhaust-valve 12 is provided in evacuated tube 13.This gas sampling device is provided with scavenging conduit 3 and evacuated tube 13, and scavenging conduit 3 can lead to
It crosses outer circulating tube 8 gas medium in pipeline is discharged by evacuated tube 13, between connection sampling steel cylinder 9 and input sampling valve 5
Pipeline in the medium that retains completely be purged in the container of specified retracting device or the specified poisonous and harmful medium of processing,
Eliminate discharge health injury and the problem of to the pollution of surrounding air caused by sampling personnel because of chemical medium.
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.
Embodiment 1
As shown in Figure 1 and 2：Sampling module 1 includes sampling module main body, and the side of sampling module main body is provided with for connecting
The sampling module interconnecting piece 101 of valve is connect, mutually independent input channel 102 and return flow line are provided in sampling module main body
103, the output end of input channel 102 and the input terminal of return flow line 103 are arranged on the end face of sampling module interconnecting piece 101,
And it is equipped with for by the output end of input channel 102 and return flow line 103 between sampling module interconnecting piece 101 and the spool of valve
Input terminal connection cavity.The input channel 102 of this sampling module 1 and return flow line 103 pass through sampling module interconnecting piece 101
Cavity between spool is connected to, and cavity of the medium between sampling module 1 and the spool of valve carries out circulation cycle, to protect
Open that valve gets when card sampling at any time is exactly fresh dielectric sample, moreover it is possible to so that medium is passed through under extremely cold environment and take
Egf block recycle, prevent sampling when due to gas medium in contain liquid solidification or liquid medium solidification influence sampling.
Sampling module main body be it is horizontally disposed cylindric, in the present embodiment, input channel 102 and return flow line 103
It is to be taken with the axis of sampling module main body through-hole disposed in parallel, i.e. input terminal and the output end setting of input channel 102
The opposite both sides of original mold block main body, the output end and input terminal of return flow line 103 are also disposed at opposite two of sampling module main body
Side, and the input terminal of input channel 102 and the output end of return flow line 103 are arranged in the same side of sampling module main body, input
The output end in channel 102 and the input terminal of return flow line 103 are arranged in the same side of sampling module main body, and input channel 102
Output end and the input terminal of return flow line 103 be arranged on the end face of sampling module interconnecting piece 101.
The upside in return flow line 103, the diameter phase of input channel 102 and return flow line 103 is arranged in input channel 102
Be more than the diameter at middle part Deng the diameter of, the input terminal of input channel 102, form input channel docking section, return flow line 103 it is defeated
The diameter of outlet is more than the diameter at middle part, forms return flow line docking section.It is docked around input channel docking section and return flow line
The inner wall in portion is provided with screw thread, to facilitate input channel and return flow line to be docked with pipeline.
The diameter of sampling module main body right end is less than the diameter of left end, to form cylinder in the right end of sampling module main body
The sampling module interconnecting piece 101 of shape, the outer wall around sampling module interconnecting piece 101 are provided with screw thread, to convenient and valve pair
It connects.The right end of sampling module interconnecting piece 101 is the spherical shape of middle part indent, so as in sampling module interconnecting piece 101 and valve body
Spool between form cavity, the output end of input channel 102 is connected to the input terminal of return flow line 103 by cavity.
5 one end of input sampling valve is connected with the input terminal of storage device, and the other end is docked with the sampling module of sampling module 1
Portion is connected, and the end surfaces for the spool and sampling module interconnecting piece 101 for inputting sampling valve 5 are arranged, and is formed logical for that will input
The cavity that the output end in road 102 is connected to the input terminal of return flow line 103.
The upper end of sampling steel cylinder 9 is input terminal, and lower end is output end, and the upper end of sampling steel cylinder 9 is connected with steel cylinder transfer valve
7, the lower end of sampling steel cylinder 9 is connected with steel cylinder delivery valve 10, the output end of the input terminal and steel cylinder delivery valve 10 of steel cylinder transfer valve 7
It is respectively connected with purging module 6, and the purging module 6 of the input terminal of steel cylinder transfer valve 7 is connected by pipeline with input sampling valve 5
It is logical.The output end of input sampling valve 5 is also connected with purging module 6.
The output end of the purging module 6 of 10 output end of steel cylinder delivery valve is connected with output sampling valve 11, output by pipeline
The input terminal of sampling valve 11 is also connected with purging module 6, and the output end of output sampling valve 11 is also associated with sampling module 1.
The sampling module 1 for inputting 5 input terminal of sampling valve connects probe tube 2, the input terminal and chemical production device of probe tube 2
Conveyance conduit connection, the output end of probe tube 2 connects the input channel 102 of the sampling module 1.
The sampling module 1 for exporting 11 output end of sampling valve connects return duct 15, the output end connection chemical industry life of return duct 15
The conveyance conduit of device is produced, the input terminal of return duct 15 connects the return flow line 103 of the sampling module 1.
It inputs between the sampling module 1 of 5 input terminal of sampling valve and the sampling module 1 for exporting 11 output end of sampling valve and is provided with
Communicating pipe, communicating pipe one end be connected to the return flow line 103 of sampling module 1 of input 5 input terminal of sampling valve, the other end with export
The input channel 102 of the sampling module 1 of 11 output end of sampling valve is connected to, to enable medium to be sampled in input sampling valve
Cycle is formed between 5 and output sampling valve 11.Sampling shut-off valve is provided on communicating pipe, to facilitate the logical of control communicating pipe
It is disconnected.
The purging module 6 of input 5 output end of sampling valve is also associated with scavenging conduit 3, the input terminal and nitrogen cylinder of scavenging conduit 3
Or be connected with nitrogen gas delivery-line, the output end of scavenging conduit 3 is connected to the side of purging module 6, is provided with and is blown on scavenging conduit 3
Valve 4 is swept, facilitates the break-make of control nitrogen, nitrogen is avoided to counteract the sampling of medium.
The side for exporting the purging module 6 of 11 output end of sampling valve is also associated with evacuated tube 13, the input terminal of evacuated tube 13
It is connected with the side of the purging module 6, the output end of evacuated tube 13 is connected with adsorption tanks 14, so as to the medium that will be purged
In harmful substance remove, avoid pollution environment.It is provided with exhaust-valve 12 in evacuated tube 13, facilitates the logical of control evacuated tube 13
It is disconnected.
It is provided between the purging module 6 of 10 output end of purging module 6 and steel cylinder delivery valve of 7 input terminal of steel cylinder transfer valve
Outer circulating tube 8, the both ends of outer circulating tube 8 are connected to the side of two purging modules 6 respectively, so as to by the medium in pipeline
Sample purges out completely, avoids there is sample medium in pipeline, is damaged to the body of operating personnel, it is thus also avoided that pipeline
Interior medium is directly discharged to pollute environment in environment.
As shown in Figure 3：Purging module 6 includes the sampling channel for purging module bodies and being arranged in purging module bodies
602 and purge passage 603.
Module bodies are purged to be cylindric after horizontally disposed rectangle, in the present embodiment, purging module bodies are water
Put down the cylindric of setting.The left end diameter for purging module bodies is less than the diameter at middle part, forms the valve for being connect with valve
Interconnecting piece 604, the right end diameter for purging module bodies are less than mid diameter, form the pipe connection portion for being connect with pipeline
601.Outer wall around valve interconnecting piece 604 is provided with screw thread, to convenient docking with valve, around pipe connection portion 601
Outer wall be also equipped with screw thread, connect with pipeline to convenient.Pipe connection portion 601 can be connect with quick coupling, to side
Just it is quickly docked with pipeline, be easy for installation and removal sampling steel cylinder 9.
The through-hole that sampling channel 602 is arranged along sampling module main body length direction samples center line and the sampling in channel 602
The centerline parallel of module bodies is arranged.The side in sampling channel 602 is arranged in purge passage 603, and 603 one end of purge passage is set
It sets on the end face of valve interconnecting piece 604, the other end is butt end, and butt end is arranged in the middle part side of purging module bodies,
The cavity for purge passage 603 and sampling channel 602 to be connected to is provided between valve interconnecting piece 604 and the spool of valve.
Preferably, the end face of valve interconnecting piece 604 be middle part indent spherical shape, to make after being connect with valve spool with
Cavity is formed between the end face of valve interconnecting piece 604, ensures that sampling 602 left end of channel is connected with the left end of purge passage 603.
The diameter of 603 butt end of purge passage is more than the diameter at middle part, is blown to be formed in the butt end of purge passage 603
Channel docking section is swept, the inner wall around purge passage docking section is provided with screw thread, to the convenient connection with scavenging conduit 3.
As shown in Figure 4：In the present embodiment, input sampling valve 5 is ball valve, input 5 input terminal of sampling valve and sampling module 1
Docking, the output end for inputting sampling valve 5 are docked with purging module 6.
The sampling module interconnecting piece 101 of sampling module 1 stretches into the input terminal of input sampling valve 5, and with input sampling valve 5
Input terminal is threadedly coupled.The end face of sampling module interconnecting piece 101 and the valve core chamber of input sampling valve 5 are every setting, to make sampling
The output end of the input channel 102 of module 1 is connected to the input terminal of return flow line 103, i.e. 102 right end of input channel and reflux is logical
The right end in road 103 is connected to.
Purging module 6 valve interconnecting piece 604 stretch into input sampling valve 5 output end, and with input sampling valve 5 output
End is threadedly coupled.The end face of valve interconnecting piece 604 and the valve core chamber of input sampling valve 5 are every setting, to make taking for purging module 6
The left end in sample channel 602 is connected to the left end of purge passage 603.The pipe connection portion 601 of purging module 6 is connected with fast quick access
Head to which fast and easy is connect with pipeline, and then facilitates the fast quick-detach of sampling steel cylinder 9.
The input terminal of output sampling valve 11 is connected with purging module 6, and output end is connected with sampling module 1, the purging module 6
Purge passage 603 be arranged and be connected to the input terminal of evacuated tube 13 in one end of purging module bodies side.Export sampling valve 11
With sampling module 1 and purges the connection type of module 6 and input the connection of sampling valve 5 and sampling module 1 and purging module 6
Mode is identical.
In the present embodiment, input sampling valve 5 and output sampling valve 11 are ball valve.It inputs sampling valve 5 and output samples
Valve 11 can also be plate valve.
As shown in Figure 5：The left end of sampling steel cylinder 9 is input terminal, and right end is output end, and the left end of sampling steel cylinder 9 is provided with
Connecting cylinder 901 is inputted, right end is provided with output connecting cylinder 902, inputs the input terminal screw thread of connecting cylinder 901 and steel cylinder transfer valve 7
Connection, output connecting cylinder 902 are threadedly coupled with the output end of steel cylinder delivery valve 10.Steel cylinder transfer valve 7 and steel in the present embodiment
Bottle delivery valve 10 is ball valve.Steel cylinder transfer valve 7 and steel cylinder delivery valve 10 can also be plate valve.
The left end of steel cylinder transfer valve 7 is connected with purging module 6, and valve interconnecting piece 604 and the input of the purging module 6 connect
Cylinder 901 is threadedly coupled, and the valve core chamber of the end face of valve interconnecting piece 604 and steel cylinder transfer valve 7 is every setting.
The right end of steel cylinder delivery valve 10 is connected with purging module 6, and valve interconnecting piece 604 and the output of the purging module 6 connect
Connect cylinder 902 is threadedly coupled, and the valve core chamber of the end face of valve interconnecting piece 604 and steel cylinder delivery valve 10 is every setting.Outer circulating tube 8
The purge passage 603 that one end purges module 6 with 7 left end of steel cylinder transfer valve is connected to, and the other end is purged with 10 right end of steel cylinder delivery valve
The purge passage 603 of module 6 is connected to, can will be in pipeline by outer circulating tube 8 after filling medium in sampling steel cylinder 9
Medium completely purging is clean.Check-valves 16 is provided on outer circulating tube 8, so as to avoid sampling when medium by following outside
Endless tube 8 flows back.
The sampler is mainly used for the sampling of gas medium, and application method is as follows：Gas enters input by probe tube 2
In the sampling module 1 in the left side of sampling valve 5, then pass through communicating pipe, 11 left side of output sampling valve sampling module 1 after, through reflux
Pipe 15 flows out, to make the gas of 5 input terminal of input sampling valve remain recurrent state.
After opening input sampling valve 5 when sampling, gas is flowed into through steel cylinder transfer valve 7 in sampling steel cylinder 9, and through over sampling steel
The steel cylinder delivery valve 10 of 9 downside of bottle, output sampling valve 11 are back in return duct 15, complete the sampling of gas.
After the completion of sampling, input sampling valve 5 and output sampling valve 11 are closed, and closes steel cylinder transfer valve 7 and steel cylinder output
Then valve 10 opens blow down valve 4 and the gas medium in pipeline is blown into evacuated tube by exhaust-valve 12, nitrogen by outer circulating tube 8
In 13, hence into the attached discharge of 14 interior suction of adsorption tanks.Complete the sampling of gas.
Embodiment 2
As shown in Fig. 6 ~ 9：The sampler includes sampling bottle 18, inputs sampling valve 5 and above-mentioned sampling module 1, defeated
Enter 5 one end of sampling valve with the suitable for reading of sampling bottle 18 to be connected, the other end is connected with the sampling module docking section of sampling module 1, and defeated
Enter the spool of sampling valve 5 and the end surfaces of sampling module interconnecting piece 101 are arranged, is formed for by the output of input channel 102
Hold the cavity being connected to the input terminal of return flow line 103.
The both sides adjacent in sampling module main body are arranged in the input terminal and output end of the input channel 102 of sampling module 1, and
The output end of input channel 102 is arranged downward；The input terminal of return flow line 103 and the output end setting of input channel 102 are taking
The same side of original mold block main body, the output end of return flow line 103 are arranged with the input terminal of input channel 102 in sampling module main body
The same side.In the present embodiment, sampling module main body is round for the cross section of inverted " L " shape and sampling module main body.
Sampling module main body can also be rectangular.
The diameter of sampling module main body vertical portion lower end is less than the diameter of horizontal part, in sampling module main body vertical portion
Lower end form columned sampling module interconnecting piece 101, the outer wall around sampling module interconnecting piece 101 is provided with screw thread, from
And it is conveniently docked with valve.
The diameter of the input terminal of input channel 102 is more than the diameter at middle part, forms input channel docking section, return flow line
The diameter of 103 output end is more than the diameter at middle part, forms return flow line docking section.It is logical around input channel docking section and reflux
The inner wall of road docking section is provided with screw thread, to facilitate input channel and return flow line to be docked with pipeline.Input channel 102 it is defeated
The input terminal of outlet and return flow line 103 is arranged on the end face of sampling module interconnecting piece 101.Sampling module interconnecting piece 101
Right end be middle part indent spherical shape, it is defeated so as to form cavity between sampling module interconnecting piece 101 and the spool of valve body
The output end for entering channel 102 is connected to the input terminal of return flow line 103 by cavity.
The upside of input sampling valve 5 is the input terminal for inputting sampling valve 5, and the downside of input sampling valve 5 is input sampling valve 5
Output end.The input terminal for inputting sampling valve 5 connects sampling module 1, and the output end connection purging module 6 of input sampling valve 5 is blown
The lower end for sweeping module 6 is connect by sealing element 17 with the bottle sealing of sampling bottle 18, and sampling bottle 18 is mounted on sampling bottle mounting bracket
On.In the present embodiment, input sampling valve 5 is ball valve.It can also be plate valve to input sampling valve 5.
The sampling module interconnecting piece 101 of sampling module 1 is threadedly coupled with the input terminal of input sampling valve 5, and sampling module connects
Socket part 101 is arranged downward, and to keep the input terminal of input channel 102 horizontally disposed, the output end of input channel 102 is set vertically
It sets, liquid medium is facilitated to be flowed downward in sampling bottle 18 in gravity.The lower face of sampling module interconnecting piece 101 and input
The valve core chamber of sampling valve 5 is every setting, to make the output end of input channel 102 be connected to the input terminal of return flow line 103, ensures
Liquid forms cycle by input channel 102 and return flow line 103.
It includes that purging module bodies and the sampling channel 602 being arranged in purging module bodies, purging lead to purge module 6
Road 603 and emptying channel 605.The upper end of sampling module main body is provided with columned valve interconnecting piece 604, sampling module master
The lower end of body 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 for purging module 6 is threadedly coupled with the output end of input sampling valve 5, and purges the valve of module 6
The end face of door interconnecting piece 604 and the valve core chamber of input sampling valve 5 are every setting, to make sampling channel 602 connect with purge passage 603
It is logical.
Sealing element 17 is the cylinder of polytetrafluoroethylene (PTFE) material, and the upper-end inner diameter of sealing element 17 is more than end internal diameter, in sealing element
17 upper ends form sealing element interconnecting piece 1701, and the lower end of sealing element 17 is the sealing of the taper from top to bottom reduced between outer diameter
1702, the diameter of 1702 lower end of sealing is less than the diameter of 18 bottleneck of sampling bottle, and the diameter of 1702 upper end of sealing is more than sampling
The diameter of 18 bottlenecks of bottle, it is good with the bottle sealing effect of sampling bottle 18 to ensure, and can adapt to taking in different bores
Sealing when sample bottle 18 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 1701, and with sealing element interconnecting piece
1701 are tightly connected, and the bottleneck of sampling bottle 18 is stretched into the lower part of sealing 1702, so as to the bottle sealing with sampling bottle 18
Connection.
As shown in Figure 10：Sampling bottle mounting bracket includes upper protective cover 19, lower protective cover 20 and pedestal 22, upper protective cover 19
The diameter of upper end is less than the diameter of lower end, and the middle part of upper protective cover 19 is the from top to bottom gradual increased arc of diameter.Upper guarantor
The internal diameter of 19 lower part of shield is more than the outer diameter of 18 lower part of sampling bottle, and the internal diameter on 19 top of upper protective cover is more than 18 top of sampling bottle
Outer diameter and the outer diameter for being less than 18 lower part of sampling bottle.Lower protective cover 20 is the cylinder of lower end closed, and the internal diameter of lower protective cover 20 is more than
The lower end of the outer diameter of 19 lower part of upper protective cover, upper protective cover 19 is stretched into lower protective cover 20 and by articulated shaft 23 and lower protective cover
20 rotation connections.Pedestal 22 includes the disk of the column and column at middle part or more both sides, the blind end setting of lower protective cover 20
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 20 on the upside of column
It is provided with spring 21, so as to make the sampling bottle 18 on the disk being placed on the upside of column compress sealing element 17.
The upper end of upper protective cover 19 is provided with holding portion 1901, and the diameter in holding portion 1901 is equal to or slightly less than sealing element 17
The inner wall of the outer diameter on top, holding portion 1901 is arranged at intervals with multiple annular grooves.
The sampler is mainly used for the sampling of liquid medium, and application method is as follows, rotates upper protective cover 19 first, and will
Sampling bottle 18 is placed on the disk on the upside of column, and upper protective cover 19 and sealing element 17 are then passed through 1901 clamping of holding portion.
Liquid medium forms cycle by input channel 102 and return flow line 103.
When needing sampling, input sampling valve 5 is opened, and by the input terminal of purge passage 603 and empty the defeated of channel 605
Outlet is closed, and sampling channel 602 of the liquid medium by purging module 6 enters in sampling bottle 18.
After the completion of sampling, input sampling valve 5 is closed, nitrogen is passed through into purge passage 603 by purge passage docking section,
Nitrogen enters valve interconnecting piece 604 by purge passage 603 and inputs in the cavity between 5 spool of sampling valve, then leads to again
Over sampling channel 602 enters in the cavity on 18 top of sampling bottle, is then blown out again by emptying channel 605, by adsorption tanks
It is discharged after 14 absorption, completes sampling operation, avoided in sampling bottle 18 or there are liquid mediums in pipeline.
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 (9)
1. a kind of gas sampling device, it is characterised in that：Including sampling steel cylinder（9）, input sampling valve（5）And output sampling valve
（11）, sampling steel cylinder（9）Input terminal is connected with steel cylinder transfer valve（7）, sampling steel cylinder（9）Output end be connected with steel cylinder delivery valve
（10）, input sampling valve（5）Output end and steel cylinder transfer valve（7）Input terminal connection, steel cylinder delivery valve（10）Output end
With output sampling valve（11）Input terminal connection, steel cylinder transfer valve（7）Input terminal and steel cylinder delivery valve（10）Output end it is logical
Cross outer circulating tube（8）Connection inputs sampling valve（5）Output end be also associated with scavenging conduit（3）, scavenging conduit（3）On be provided with and blow
Sweep valve（4）, export sampling valve（11）Input terminal be also associated with evacuated tube（13）, evacuated tube（13）On be provided with exhaust-valve
（12）.
2. gas sampling device according to claim 1, it is characterised in that：The outer circulating tube（8）On be provided with only
Return valve（16）.
3. gas sampling device according to claim 1, it is characterised in that：The input sampling valve（5）Input terminal
It is connected with probe tube（2）, export sampling valve（11）Output end be connected with return duct（15）, input sampling valve（5）Input terminal
With output sampling valve（11）Output end be connected to by communicating pipe.
4. gas sampling device according to claim 3, it is characterised in that：Sampling cut-off is provided on the communicating pipe
Valve.
5. gas sampling device according to claim 3, it is characterised in that：The input sampling valve（5）Input terminal
With output sampling valve（11）Output end be respectively connected with sampling module（1）, each sampling module（1）On be equipped with input channel
（102）The return flow line and（103）, and input channel（102）The return flow line and（103）With input sampling valve（5）Input terminal
Connection, probe tube（2）Pass through the input channel of respective side（102）With input sampling valve（5）Connection, return duct（15）Pass through correspondence
The return flow line of side（103）With output sampling valve（11）Connection, will input sampling valve communicating pipe（5）The return flow line of input terminal
（103）With output sampling valve（11）The input channel of output end（102）Connection.
6. gas sampling device according to claim 5, it is characterised in that：Each sampling module（1）Close to valve
One end of core is equipped with columned sampling module interconnecting piece（101）, sampling module interconnecting piece（101）End face be middle part indent
Spherical shape, input channel（102）The return flow line and（103）It is arranged at sampling module interconnecting piece close to one end of spool（101）
End face on.
7. gas sampling device according to claim 1 or 5, it is characterised in that：The input sampling valve（5）Input
End and output sampling valve（11）Output end be respectively connected with purging module（6）, each purge module（6）On be equipped with sampling channel
（602）And purge passage（603）, and sample channel（602）And purge passage（603）With input sampling valve（5）Output end
Connection, steel cylinder transfer valve（7）The input terminal sampling channel that passes through respective side（602）With input sampling valve（5）It is connected, steel cylinder
Delivery valve（10）The output end sampling channel that passes through respective side（602）With output sampling valve（11）It is connected, scavenging conduit（3）It is logical
Cross the purge passage of respective side（603）With input sampling valve（5）Connection, evacuated tube（13）Pass through the purge passage of respective side
（603）With output sampling valve（11）It is connected.
8. gas sampling device according to claim 7, it is characterised in that：Each purging module（6）Close to valve
One end of core is equipped with columned valve interconnecting piece（604）, valve interconnecting piece（604）End face be middle part indent arc,
Sample channel（602）And purge passage（603）It is arranged at valve interconnecting piece close to one end of spool（604）On end face.
9. gas sampling device according to claim 1, it is characterised in that：The input sampling valve（5）It is taken with output
Sample valve（11）It is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327340.9U CN207964388U (en) | 2018-03-10 | 2018-03-10 | A kind of gas sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327340.9U CN207964388U (en) | 2018-03-10 | 2018-03-10 | A kind of gas sampling device |
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|---|---|
| CN207964388U true CN207964388U (en) | 2018-10-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342119A (en) * | 2018-12-07 | 2019-02-15 | 云南云天化石化有限公司 | Recycle acid sampler and recycle acid sampling system |
| CN109738324A (en) * | 2019-01-11 | 2019-05-10 | 巨石集团有限公司 | A kind of on-line detecting system and detection method of size solid content |
-
2018
- 2018-03-10 CN CN201820327340.9U patent/CN207964388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342119A (en) * | 2018-12-07 | 2019-02-15 | 云南云天化石化有限公司 | Recycle acid sampler and recycle acid sampling system |
| CN109738324A (en) * | 2019-01-11 | 2019-05-10 | 巨石集团有限公司 | A kind of on-line detecting system and detection method of size solid content |
| CN109738324B (en) * | 2019-01-11 | 2021-07-13 | 巨石集团有限公司 | Online detection system and detection method for solid content of impregnating compound |
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