CN207090180U - Olefin sampling and storing device - Google Patents
Olefin sampling and storing device Download PDFInfo
- Publication number
- CN207090180U CN207090180U CN201720777616.9U CN201720777616U CN207090180U CN 207090180 U CN207090180 U CN 207090180U CN 201720777616 U CN201720777616 U CN 201720777616U CN 207090180 U CN207090180 U CN 207090180U
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- tank body
- alkene
- sampling
- storage device
- nitrogen
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- 150000001336 alkenes Chemical class 0.000 title claims abstract description 72
- 238000005070 sampling Methods 0.000 title claims abstract description 72
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 96
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 48
- 229920000098 polyolefin Polymers 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims description 39
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000013467 fragmentation Methods 0.000 claims 1
- 238000006062 fragmentation reaction Methods 0.000 claims 1
- 238000010926 purge Methods 0.000 abstract 3
- 238000006116 polymerization reaction Methods 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
An olefin sampling and storing device connected with a polyolefin production device, comprising: the top of the tank body is provided with a sampling connecting port, and the bottom of the tank body is provided with a discharge port; the nitrogen displacement unit comprises a nitrogen purging port, a vent port and a nitrogen source, the nitrogen purging port and the vent port are arranged at the top of the tank body, and when the nitrogen in the tank body is displaced, the nitrogen purging port is connected with the nitrogen source; the bearing frame is connected with the bottom of the tank body and used for supporting the tank body; the safety monitor is arranged at the top of the tank body; and the pressure measuring device is arranged at the top of the tank body.
Description
Technical field
Field of olefin polymerisation is the utility model is related to, more particularly, to the sampler of alkene.
Background technology
In recent years, with the continuous expansion of polyolefin market demand, the country establishes more set manufacture of polyolefins devices, polyene
The exploitation of hydrocarbon catalyst also turns into the major tasks of each chemical enterprise and scientific research institution.The olefin feedstock of manufacture of polyolefins device needs
Analyze, catalyst needs periodically evaluation, it is therefore desirable to take out a certain amount of olefin samples from upper production device.Meanwhile polyolefin
Needs assessment catalyst performance during catalyst development, need also exist for taking certain alkene sample from manufacture of polyolefins device
Product.It is required for completely cutting off air from the sampling of manufacture of polyolefins device and the storage of olefin samples, if olefin samples and air contact
It will be contaminated, olefinic polymerization can poison catalyst when testing, and influence the performance of catalyst；And it is mixed into the sky in olefin samples
Gas is difficult separation.After olefin addition raw material has certain toxicity, misoperation or alkene to leak in air, environment is caused
Pollution, while also the personal safety to sampling personnel brings injury.Olefin feedstock also has inflammable, explosive property, therefore former
The sampling of material and storage process are all critically important, must there is suitable sampling storage device.
When manufacture of polyolefins device carries out alkene sampling at present, the sampling apparatus used is smaller, can only carry out the group of raw material
Into analysis；If adopting more olefin samples and storing, often using civil liquefied gas tank or the interim tank voluntarily manufactured, these tanks
Unreasonable structure, alkene can be caused to reveal in alkene sampling process, pollute environment, to sampling, personnel damage；In alkene
There is also certain potential safety hazard during hydrocarbon storage.Therefore how safety samples and stored olefin samples, is manufacture of polyolefins
Need to solve the problems, such as in enterprise and polyolefin catalyst R＆D work.
Utility model content
The utility model aims to overcome that the defects of existing alkene sampling is present, there is provided a kind of safe and reliable alkene
Storage device is sampled, its good leak tightness is free from environmental pollution, can effectively protect the personal safety of sampling personnel.
To achieve the above object, utility model can take following technical proposals：
A kind of alkene samples storage device, is connected with manufacture of polyolefins device, it is characterised in that include：
One tank body, top are provided with a sampling connector, and bottom is provided with a drain hole；
One nitrogen displacement unit, including nitrogen blow valve port, drain and a source nitrogen, the nitrogen blow valve port with it is described
Drain is arranged at the top of the tank body, and in the tank body during nitrogen displacement, nitrogen blow valve port is connected with the source nitrogen；
One bearing frame, the bearing frame are connected with tank base, to support the tank body；
One safe monitor, it is arranged at the top of the tank body；
One device for pressure measurement, it is arranged at the top of the tank body.
Described alkene sampling storage device, it is characterised in that the bearing frame includes supporting leg and connection supporting leg
Base, the supporting leg is connected with the tank base.
Described alkene sampling storage device, it is characterised in that the supporting leg is welded to connect with the tank base.
Described alkene sampling storage device, it is characterised in that the tank body side outer wall symmetric position is provided with handle.
Described alkene sampling storage device, it is characterised in that the connector and the nitrogen blow valve port of sampling is tank
Same opening at the top of body, the sampling connector are that material taking mouth is alternatively nitrogen inlet.
Described alkene sampling storage device, it is characterised in that the device for pressure measurement is a pressure gauge, the pressure
Table is connected by a pressure line with the tank body, and the pressure line is provided with valve.
Described alkene sampling storage device, it is characterised in that the safe monitor is safety valve or rupture disk.
Described alkene sampling storage device, it is characterised in that the sampling connector, the drain hole with
And the drain is equipped with valve.
Described alkene sampling storage device, it is characterised in that during sampling, the sampling connector passes through a sampling line
It is connected with the manufacture of polyolefins device, the sampling line stretches into the tank body and extends to tank base.
Described alkene sampling storage device, it is characterised in that the number of the supporting leg is 3-6 branch.
The utility model provides alkene sampling storage device and can be used for alkene isolation air sampling, and can be kept away in sampling
Exempt from the alkene leakage pollution environment of sampling.After sampling terminates, olefin samples are easy to transport and storage.Simple in construction, cost simultaneously
Reduce, and sampling personnel can be protected.Meanwhile sample storage device and be easy to be connected with olefinic polymerization evaluating apparatus, be advantageous to alkene
The development of polymerized hydrocarbon experiment.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model first embodiment.
Fig. 2 is the structural representation of the utility model second embodiment.
Fig. 3 is the structural representation of the utility model 3rd embodiment.
Fig. 4 is the structural representation of the utility model fourth embodiment.
Fig. 5 is the structural representation of the embodiment of the utility model the 5th.
Fig. 6 is the structural representation of the utility model sixth embodiment.
Wherein reference is：
1. tank body
2 sampling connectors
3 drains
4 pressure gauges
5 safety valves
6 supporting legs
7 bases
8 drain holes
9 supporting parts
10 handles
11 heaters
12 metal pressure hoses
13 meters
Embodiment
Where the characteristics of in order to know more about the utility model, lift following examples and coordinate Fig. 1-Fig. 6 to be described as follows, it is described
Alkene that embodiment is provided sampling storage device include a tank body 1, nitrogen displacement unit, the bearing frame with function of measuring,
Safe monitor, device for pressure measurement.
As shown in figure 1, Fig. 1 is the structural representation of the utility model first embodiment, the top of tank body 1 is provided with a sampling
Connector 2, bottom are provided with a drain hole 8；Unit is replaced the air in tank body 1 to be cemented out, nitrogen displacement unit bag
Nitrogen blow valve port, drain 3 and source nitrogen are included, during with nitrogen displacement, nitrogen blow valve port is connected with the source nitrogen, nitrogen note
Enter tank body and discharge nitrogen through drain hole 8, drain 3, it is ensured that air displacement is clean in pipeline.Will be first by tank body 1 before sampling
Air displacement is clean, ensures be full of nitrogen in tank body 1, and during sampling, sampling connector 2 is passed through into a sampling line and polyolefin life
Produce device connection.
Again as shown in figure 1, in the first embodiment, the nitrogen blow valve port is arranged at the tank body 1 with the drain 3
Top；Nitrogen blow valve port, drain 3, drain hole 8 and sampling connector 2 are equipped with valve.The sampling connector 2 and institute
Upper same opening of the nitrogen blow valve port for the top of tank body 1 is stated, the sampling connector 2 is that material taking mouth is alternatively nitrogen air inlet
Mouthful, it that is to say, sampling connector 2 can be connected or pass through nitrogen tube by a sampling line with manufacture of polyolefins device
Line is connected with the source nitrogen, and drain hole 8 is located at the bottom centre of tank body 1, and is provided with valve, and drain hole 8 is evaluated with olefinic polymerization
Experimental rig connects, and the high-volume effect of mouth is that olefin feedstock is delivered into olefinic polymerization evaluating apparatus, and another effect of drain hole 8 is
In to the tank body 1 during nitrogen displacement, drain hole 8 is discharging air in tank body 1.
It should be noted that in the present first embodiment, will be with manufacture of polyolefins when alkene sampling storage device sampling
The sampling line of device connection stretches into the tank body 1 through sampling connector and extends to the bottom of tank body 1, alkene thing during sampling
Material is introduced into the bottom of tank body 1, reduces liquefied olefines vaporization.
Again as shown in figure 1, in the present first embodiment, a bearing frame is installed in the bottom of tank body 1, to support the tank body
1；Bearing frame also includes the supporting leg 6 positioned at the bottom of tank body 1, connects the base 7 of supporting leg 6, supporting leg 6 and the bottom of tank body 1
Portion connects.
Again as shown in figure 1, in the present first embodiment, supporting leg 6 is welded to connect with the bottom of tank body 1, the bottom of tank body 1
Provided with supporting leg 6, the weight of tank body 1 and sample is carried, making tank body 1, the quantity of supporting leg 6 is 3-6 branch, preferably 3 to be vertical.Tank
The bottom of body 1 is provided with the base 7 of connection supporting leg 6, to realize weight balance function, ensures steadiness when tank body 1 is stood, base 7
To be hollow or solid.
Again as shown in figure 1, in the present first embodiment, the top of tank body 1 is provided with safe monitor, safe monitor is peace
Full valve 5 or rupture disk, when the pressure of tank body 1 exceedes security settings pressure, safety valve 5 or rupture disk then pressure release, prevent tank body 1 from pressing
Power exceedes design pressure and causes explosion.
Again as shown in figure 1, in the present first embodiment, the top of tank body 1 is provided with device for pressure measurement, pressure measxurement dress
It is set to a pressure gauge 4.The pressure gauge 4 in a pressure line and the tank body 1 by being connected, and the pressure line is provided with
Valve.The pressure that can be observed at any time in tank by pressure gauge 4, valve when changing pressure gauge 4 on closing presure pipeline.
It is noted that handle is provided with the side outer wall of tank body 1 in the present first embodiment, for sampling storage tank
Carry.
With reference to figure 2, Fig. 2 is the structural representation of the utility model second embodiment, with Fig. 1 first embodiments provided
Structural representation is compared, and distinguishing feature is, in this second embodiment, external heating dress is installed on the outer wall of tank body side
Put, the external heater is detachably connected with tank body, for by the liquefied olefines in tank body are quick and uniformly heating, by liquid
Alkene changes into gaseous olefin, is advantageous to the development of olefin samples analysis and olefinic polymerization experiment.Further, it is arranged at outside tank body
The 11 optional heat tape of external heater in portion, electric heating cover etc..Supporting part is provided with tank base drain hole in addition, is used
To strengthen the intensity of drain hole, the bending of pipeline stress, deformation are prevented.
With reference to figure 3, Fig. 3 is the structural representation of the utility model 3rd embodiment, with Fig. 2 second embodiments provided
Structural representation is compared, and its distinguishing feature is that heater 11 is improved, and in this third embodiment, alkene takes
Sample storage device adds built-in heater, and built-in heater is located at tank interior, and the rate of heat addition is fast and uniform, can incite somebody to action
Liquefied olefines change into rapidly gaseous olefin；Compared with external heater, postponed in heater, when saving installation, dismounting
Between, can effectively protect heater, breakage when preventing the sampler to collide to external heater, this it is built-in plus
The optional heating water bath equipment of thermal 11 or steam-heating apparatus or oil bath heating equipment or electric heating equipment or optical wave heating are set
It is standby etc..
With reference to figure 4, Fig. 4 is the structural representation of the utility model fourth embodiment, with Fig. 1 first embodiments provided
Structural representation is compared, and most important distinguishing feature is that alkene sampling storage tank gathers with manufacture of polyolefins device or alkene
The connection of evaluating apparatus is closed by the way of quickly connecting.Specifically, in this fourth embodiment, connection sampling connector and
Drain hole is all connected with a metal pressure hose 12 for carrying snap joint, when being sampled to manufacture of polyolefins device, using quick
Tank body is quickly connected by joint with manufacture of polyolefins device, simple efficient, is improved operating efficiency, equally, is sampled storage device
Drain hole uses quick connected mode with olefinic polymerization evaluating apparatus, facilitates the development of olefinic polymerization experiment.It should be noted
It is, when being sampled to manufacture of polyolefins device, metal pressure hose 12 to be stretched into the tank body 1 and extends to tank body 1
Bottom, olefin feed is introduced into the bottom of tank body 1 during sampling, reduces liquefied olefines vaporization.
With reference to figure 5, Fig. 5 is the structural representation of the embodiment of the utility model the 5th, with Fig. 1 first embodiments provided
Structural representation is compared, and main distinguishing feature is that further improvement has been done to bearing frame, in this fifth embodiment,
Using the bearing frame with function of measuring, bearing frame base 7 is provided with a meter 13, using the base with function of measuring,
To realize weight metering and weight balance function, ensure steadiness when tank body is stood, while measure the weight of whole tank body, can be with
Slack tank weight is measured at any time, the weight that weight, the weight of tank body residual olefin and the alkene that alkene adds take out.Realize metering work(
Spring scale either platform balance or pan scale or force value sensor or platform scale or electronic platform scale etc. may be selected in the meter of energy.
With reference to figure 6, Fig. 6 is the structural representation of the utility model sixth embodiment, and compared to Figure 1, sixth embodiment increases
Technical characteristic all in the second to the 5th embodiment is added, there is optimal effect, will not be repeated here, as the application most
Excellent embodiment, the course of work that alkene sampling storage device is described especially exemplified by the embodiment are as follows：
Step 1, sampling connector is first passed through before sampling to take alkene using the metal pressure hose 12 with snap joint
Sample storage device, which is connected on nitrogen pipeline, connects source nitrogen, opens the valve on sampling connector 2 so that nitrogen enters, and fills
Enter nitrogen to gauge pressure after 0.7MPa, to open the valve exhaust on drain 3, carry out gas displacement, replace repeatedly repeatedly.
Step 2, valve exhaust at drain hole 8 is opened, excludes the air in tank body 1, until the air displacement in tank body 1 is dry
Only, 0.7MPa nitrogen is filled with, closes all valves.
Step 3, alkene is sampled to the alkene of storage device and process units using the metal pressure hose 12 with snap joint
Hydrocarbon pipeline connects, and opens the valve on drain 3, nitrogen is vented.
Step 4, the valve closed on drain, the overall weight before being sampled using the base metering with function of measuring,
The valve at sampling connector is opened, olefin samples are put into sampling storage device (in tank body), using with function of measuring
The weight for the alkene that base metering is taken.
Step 5, after the completion of sampling, all valves are closed, disconnect the connection of tank body 1 and manufacture of polyolefins device.
Step 6, the valve on drain hole 8 is opened, tank body 1 is connected to olefinic polymerization evaluation experimental device, examination to be polymerized
Test use.If the olefin samples taken are liquid, when experiment needs gaseous olefin, heater is installed, opens heating
Function, liquefied olefines are vaporized into gaseous olefin, gaseous olefin is delivered to by olefinic polymerization evaluating apparatus by drain.
Claims (10)
1. a kind of alkene samples storage device, it is connected with manufacture of polyolefins device, it is characterised in that include：
One tank body, top are provided with a sampling connector, and bottom is provided with a drain hole；
One nitrogen displacement unit, including nitrogen blow valve port, drain and a source nitrogen, the nitrogen blow valve port and the emptying
Mouth is arranged at the top of the tank body, and in the tank body during nitrogen displacement, nitrogen blow valve port is connected with the source nitrogen；
One bearing frame, the bearing frame are connected with tank base, to support the tank body；
One safe monitor, it is arranged at the top of the tank body；
One device for pressure measurement, it is arranged at the top of the tank body.
2. alkene as claimed in claim 1 samples storage device, it is characterised in that the bearing frame includes supporting leg and company
The base of supporting leg is connect, the supporting leg is connected with the tank base.
3. alkene as claimed in claim 2 samples storage device, it is characterised in that the supporting leg welds with the tank base
Connect in succession.
4. alkene as claimed in claim 1 samples storage device, it is characterised in that the tank body side outer wall symmetric position is set
There is handle.
5. alkene as claimed in claim 1 samples storage device, it is characterised in that the sampling connector blows with the nitrogen
Mouth is swept as the same opening on tank body top, the sampling connector is material taking mouth or nitrogen inlet.
6. alkene as claimed in claim 1 samples storage device, it is characterised in that the device for pressure measurement is a pressure
Table, the pressure gauge are connected by a pressure line with the tank body, and the pressure line is provided with valve.
7. alkene as claimed in claim 1 samples storage device, it is characterised in that the safe monitor is safety valve or quick-fried
Fragmentation.
8. alkene as claimed in claim 1 samples storage device, it is characterised in that the sampling connector, the drain hole
And the drain is equipped with valve.
9. alkene as claimed in claim 1 samples storage device, it is characterised in that during sampling, the sampling connector passes through
One sampling line is connected with the manufacture of polyolefins device, and the sampling line stretches into the tank body and extends to tank body bottom
Portion.
10. alkene as claimed in claim 2 samples storage device, it is characterised in that the number of the supporting leg is 3-6 branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720777616.9U CN207090180U (en) | 2017-06-30 | 2017-06-30 | Olefin sampling and storing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720777616.9U CN207090180U (en) | 2017-06-30 | 2017-06-30 | Olefin sampling and storing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207090180U true CN207090180U (en) | 2018-03-13 |
Family
ID=61554695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720777616.9U Active CN207090180U (en) | 2017-06-30 | 2017-06-30 | Olefin sampling and storing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207090180U (en) |
-
2017
- 2017-06-30 CN CN201720777616.9U patent/CN207090180U/en active Active
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