CN209100211U - A kind of portable double-station vacuumizing device - Google Patents
A kind of portable double-station vacuumizing device Download PDFInfo
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- CN209100211U CN209100211U CN201821699723.5U CN201821699723U CN209100211U CN 209100211 U CN209100211 U CN 209100211U CN 201821699723 U CN201821699723 U CN 201821699723U CN 209100211 U CN209100211 U CN 209100211U
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- vacuum
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- molecular pump
- vacuumizing device
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Abstract
The utility model discloses a kind of portable double-station vacuumizing device, it is simple and convenient with structure, compact and reasonable, mobile portability is strong, the technological merit that can be vacuumized online with low temperature cylinder free of demolition, it is able to solve the technical issues of how existing vacuum evacuation device is moved easily, is convenient for carrying, is more suitable for vacuumizing for low temperature cylinder benefit；Its structure includes: molecular pump, twin-stage sliding vane rotary pump, five cavity bodies, low vacuum Pirani gauge, high vacuum ionization gauge and vacuum flapper valve；After the twin-stage sliding vane rotary pump and the molecular pump are connected in series, it is connected by the molecular pump with the five cavities body；One in the two of them connecting pin of the five cavities body is used to be connected with the low vacuum Pirani gauge, another with the high vacuum ionization gauge for being connected；Two connecting pins of residue of the five cavities body are connected with a vacuum flapper valve respectively.The application can easily treat connection low temperature cylinder benefit and vacuumize.
Description
Technical field
The utility model relates to automobile-used LNG gas cylinder vacuum pumping technology fields more particularly to a kind of portable double-station to take out very
Empty device.
Background technique
" vacuumizing " will be extracted out by the gas in pumping container using various vacuum pumps, make the pressure in the space lower than one
A atmospheric pressure.The common equipment for obtaining vacuum mainly has rotary-vane pump, lobe pump, diffusion pump and compound molecule at present
Pump.It is understood that atmospheric pressure is about 1x10-5Pa, and the vacuum degree of cryogenic insulated cylinder under normal use about exists
1x10-3To 1x10-4Between Pa, pressure rating differs nearly 9 orders of magnitude, therefore is difficult to reach pumping using single return pump
Sky requires.Typically constitute composite exhaust system altogether using 2~3 kinds of vacuum pump groups to obtain required high vacuum.
According to the special construction of cryogenic insulated cylinder and unique production technology, its quality to the thermal insulation property of cryogenic media is determined
The overwhelming majority depends on the superiority and inferiority of the high vacuum layer vacuum before liner and shell.The vacuum degree of cryogenic insulated cylinder is not
Absolute but opposite, its plate, liner wrapper material etc. can all release foreign gas shadow in gas cylinder long-term use process
Ring vacuum effectiveness, especially automobile-used LNG gas cylinder is chronically at jounce condition and is easier to occur asking for vacuum decline or vacuum failure
Topic leads to the waste of medium, there is also certain to phenomena such as frequent take-off of safety valve, gas cylinder bottle body frosting moisture condensation occur
Security risk, it is therefore desirable to carry out vacuumizing maintenance process.
The added value of cryogenic insulated cylinder is relatively high in the prior art, user usually will not arbitrarily scrap processing or more
Ventilation bottle, when the decline of gas cylinder vacuum or vacuum failure occur, it will usually which gas cylinder is disassembled depot repair from vehicle
Processing.In maintenance process, gas cylinder factory mend using high-power vaccum-pumping equipment and vacuumize；What gas cylinder manufactory used vacuumizes
Equipment is usually prime mechanical pump, lobe pump and molecular pump combination or mechanical pump, lobe pump and diffusion pump combination, is arranged in pairs or groups simultaneously
Hot air heating system or heating rod heating system carry out heating degasification for low-temperature bottle liner, with preferably that gas cylinder interlayer is miscellaneous
Matter gas is quickly extracted out.Aforesaid operations process maintenance cycle is long, and maintenance cost is high, and the maintenance period does not have interchangeable gas cylinder to make
With, and gas cylinder dismounting is required to qualified unit and is operated, therefore maintenance process is very complicated.Further, since taking out true
Null device belongs to large-scale vaccum-pumping equipment to be fixed, it has not been convenient to and it is mobile to carry, it is only applicable to the use of gas cylinder manufacturing firm, it is uncomfortable
Use when vacuumizing is not dismantled with vehicle-mounted LNG gas cylinder.A large amount of LNG automobiles are travelled in the market, if there is vacuum decline and very
The gas cylinder of sky failure all returns to manufacturing firm's maintenance and inherently delays customer's vehicle operation, causes biggish economic loss, it is clear that
It is impractical.Therefore, it is badly in need of that a kind of can satisfy is wanted not dismantle gas cylinder and quickly mend the portable device vacuumized, Ke Yirang
Haulage vehicle voluntarily vacuumize process.
Further, the vaccum-pumping equipment used in the prior art in gas cylinder manufacturing firm is by mechanical pump, lobe pump, diffusion
Perhaps mechanical pump, lobe pump, molecular pump composition while arrange in pairs or groups hot air heating system or heating rod heating system are pumped, is low temperature
Bottle liner carries out heating degasification, preferably quickly to extract gas cylinder interlayer foreign gas out.This equipment it is sufficiently bulky, cannot
It is mobile, it is only applicable to fixed-site use, more uses are in gas cylinder manufacturing enterprise.Gas cylinder is suitble to use during manufacturing
This vaccum-pumping equipment, its pumpdown time is long, and every gas cylinder will vacuumize 4~5 days time, and automobile-used LNG gas cylinder exists
If occurring vacuum decline in use process or gas cylinder dismantle and returns to gas cylinder factory and repair by when vacuum failure must cause economy
Loss and the loss of time, reprocess a gas cylinder at least two weeks, will affect surely vehicle normal operation, and if disassembly return factory must
It is fixed also to need the remaining liq emptying in gas cylinder causing the waste of medium.Automobile-used LNG gas cylinder or industrial low-temperature in use
There is vacuum problem in bottle, and most is all to mend to vacuumize, and not vacuumizes since atmospheric pressure, therefore do not need very high match
It sets, most haulage vehicles also do not need heating degasification, are able to satisfy benefit and vacuumize.
Therefore it provides a kind of portable double-station vacuumizing device, for solving at least one of above-mentioned technical problem,
Just become those skilled in the art's urgent problem to be solved.
Utility model content
The purpose of the utility model is to provide a kind of portable vaccum-pumping equipments, have structure simple and convenient, compact and reasonable,
Mobile portability is strong, and the technological merit that can be vacuumized online with low temperature cylinder free of demolition is able to solve existing vacuum means
The technical issues of how being moved easily, being convenient for carrying is set, is more suitable for vacuumizing for low temperature cylinder benefit.
To achieve the goals above:
The utility model provides a kind of portable vaccum-pumping equipment, comprising: molecular pump, twin-stage sliding vane rotary pump, five cavity bodies, low
Vacuum resistance rule, high vacuum ionization gauge and vacuum flapper valve；After the twin-stage sliding vane rotary pump and the molecular pump are connected in series, pass through
The molecular pump is connected with the five cavities body；One in the two of them connecting pin of the five cavities body for it is described
Low vacuum Pirani gauge is connected, another with the high vacuum ionization gauge for being connected；The residue of the five cavities body two
Connecting pin is connected with a vacuum flapper valve respectively.
Preferably, the interface that the low vacuum Pirani gauge is connect with the five cavities body is KF25 vacuum adapter；The height
The interface that vacuum ionization gauge is connect with the five cavities body is KF40 vacuum adapter；The vacuum flapper valve and the five cavities body
The interface of connection is KF40 vacuum adapter；The molecular pump is connected by ISO160 flange port with the five cavities body.
Preferably, the molecular pump is air-cooled molecular pump.
Preferably, the vacuum flapper valve is connected with for bellows needed for connecting low-temperature (low temperature) vessel device.
Preferably, further include electric control system, the electric control system respectively with the molecular pump, twin-stage blade
Pump, the electrical connection of low vacuum Pirani gauge, high vacuum ionization gauge.
It preferably, further include standby power supply module, the power module is electrically connected with the electric control system.
Preferably, the power module is small generator.
It preferably, further include cabinet；The lower end of the cabinet is provided with universal wheel.
Preferably, car puller hook is provided on the cabinet.
The utility model is by providing a kind of portable vaccum-pumping equipment, and there are two stations for tool, is able to solve existing large size
Vaccum-pumping equipment is not suitable in the problem that vacuumizes with gas cylinder, and the utility model is mainly used for mending in line vacuum for low-temperature (low temperature) vessel
It takes out.The method that this set system uses ensure that speed in the low-temperature (low temperature) vessel degasification course of work and vacuum degree and whole system are each
The reasonability that component is used cooperatively uses the form of mechanical pump and big pumping speed molecular pump integrated combination, is equipped with four universal caster wheels,
It can arbitrarily move.Have the characteristics that pumping speed it is fast, using it is simple, easy to remove, be convenient for carrying, and then solve automobile-used LNG gas cylinder
It must dismantle the problem of vacuumizing；Be highly suitable for low-temperature (low temperature) vessel be especially automobile-used LNG gas cylinder it is online benefit vacuumize.In addition,
The application uses big pumping speed molecular pump, has higher evacuation efficiency.
Detailed description of the invention
Fig. 1 is the structural front view of portable vaccum-pumping equipment in the embodiment of the present application 1；
Fig. 2 is the structure rearview of portable vaccum-pumping equipment in the embodiment of the present application 1；
Fig. 3 is the structural schematic diagram of portable vaccum-pumping equipment in the embodiment of the present application 2.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Referring to FIG. 1, Fig. 1 is the structural schematic diagram of portable vaccum-pumping equipment provided in the present embodiment.In one kind
In specific embodiment, portable vaccum-pumping equipment provided by the utility model includes: that 1- is electrical and control system；2- points
Son pump；Five cavity body of 3-；4- vacuum flapper valve；5- ionization gauge；6- Pirani gauge；7- molecular pump power source；8- vacuum meter；9- cabinet；
10- twin-stage sliding vane rotary pump；11- exhaust outlet；12- diaphragm for passageway.The present invention can carry out simultaneously for 2 low-temperature (low temperature) vessels or low temperature cylinder
Vacuumize process, device are made of following branch's system: main line system, low vacuum system, high vacuum system, electrical and control
System.
Specifically, its structure includes:
(1) main line system
Main line system is made of 1 five cavity body of 3-, 2 4- vacuum flapper valves and vacuum adapter and sealing ring.It is main
Pipeline is a five cavity bodies switching pipeline, includes 1 ISO160 flange port, 3 KF40 vacuum adapters, 1 KF25 vacuum connect
Head, ISO160 vacuum flange connect low true for connecting the air-cooled molecular pump of 2-, KF25 vacuum adapter with top KF40 vacuum adapter
Empty 6- Pirani gauge and high vacuum measure 5- ionization gauge；The vacuum adapter of left and right pipeline KF40 is used to connect 4- vacuum flapper valve, then
The low-temperature (low temperature) vessel workpiece being evacuated is connected by bellows by vacuum flapper valve.
(2) low vacuum system
Low vacuum system includes a 10- twin-stage sliding vane rotary pump and vacuum pipe and clip etc..Low vacuum system is vacuum
Degasification forvacuum system.The 4- vacuum flapper valve and system forvacuum 6- Pirani gauge of forvacuum select domestic well-known product
Board product is used for forvacuum unlatching and low-vacuum measurement.Twin-stage sliding vane rotary pump pumping speed 6L/S, ultimate vacuum: 4 × 10-2Pa.11-
Exhaust outlet is equipped with gas exhaust piping, tail gas can be guided to outdoor with external PVC or the pipeline that is flexible coupling.
(3) high vacuum system
High vacuum system is main pumped vacuum systems, selects 2- molecular pump, vacuum pumping speed 600L/s, ultimate vacuum is reachable
5x10-7Pa.Taking the main line limit also can enter 10-5Pa, much meets low-temperature bottle and evacuates index.Molecular pump belongs to oil-free true
Sky pump, goes down gas molecule band by driving wheel high speed rotation, will not pollute pipeline or low-temperature bottle.High vacuum system and low vacuum system
System is connected by 12- diaphragm for passageway.
(4) electric control system
1- electric control system is mainly equipment center control electrical cabinet and control panel, and electrical cabinet includes heavy-current control electricity
Gas part.Control electrical cabinet is located in unit 9- cabinet, and electric part mainly includes the total air switch of equipment, all parts air
Switch, contactor, electrothermal relay, connecting terminal and socket etc..Electrical power is with part of appliance overcurrent and overheat and in real time
The defencive functions such as monitoring, guarantee staff and equipment itself using safe.7- molecular pump power source is used to control molecular pump gas
Dynamic and stopping, and can display real-time molecule revolution speed, 8- vacuum meter controls the display of pumped vacuum systems vacuum degree, right side display screen
Show the vacuum degree of low vacuum, left side display screen shows the vacuum degree of high vacuum.It should be noted that above-mentioned electric control system
Structure be the prior art, therefore its specific structural details is not further illustrated and is repeated herein.
The present invention selects the air-cooled molecular pump of behavior in structure design aspect, by 2- molecular pump, and is arranged in well-ventilated
Closed box on the outside of, avoid in molecular pump operation process temperature raising from causing temperature alarm.
The above-mentioned portable vaccum-pumping equipment advantage of the application is as follows:
1, the present invention uses Integrated design, and whole system small in volume is suitable for mobile outgoing evacuate and uses.
2, system carries big pumping speed molecular pump, pumping speed 600L/s.
3, automatic control system is programmed using PLC, there are molecular pump automatic protection functions.
4, double-station device can simultaneously vacuumize 2 low-temperature (low temperature) vessels or low temperature cylinder.
The utility model is mainly used for mending in line vacuum for low-temperature (low temperature) vessel and takes out.The method that this set system uses ensure that low temperature
The reasonability that speed and vacuum degree and each component of whole system in the container degasification course of work are used cooperatively uses mechanical pump
With the form of big pumping speed molecular pump integrated combination, four universal caster wheels are equipped with, can arbitrarily be moved.It is fast with pumping speed, use letter
Single, easy to remove, the characteristics of being convenient for carrying, it is highly suitable for low-temperature (low temperature) vessel and is especially the online benefit of automobile-used LNG gas cylinder vacuumizing.
The present invention is controlled using PLC, has molecular pump automatic protection functions, have and put and return oily function, can real-time display vacuumize
Vacuum degree and molecule revolution speed.The design of collocation double-station, improves and vacuumizes efficiency.
Embodiment 2:
As shown in figure 3, in the present embodiment the structure of portable vaccum-pumping equipment include: molecular pump, it is twin-stage sliding vane rotary pump, five logical
Cavity, low vacuum Pirani gauge, high vacuum ionization gauge and vacuum flapper valve；The twin-stage sliding vane rotary pump and the molecular pump are connected in series
Afterwards, it is connected by the molecular pump with the five cavities body；A use in the two of them connecting pin of the five cavities body
It is connected in the low vacuum Pirani gauge, another with the high vacuum ionization gauge for being connected；The five cavities body
Remaining two connecting pins are connected with a vacuum flapper valve respectively.
Further, as shown in figure 3, in one of optimal technical scheme of the present embodiment, the low vacuum resistance
Advising the interface connecting with the five cavities body is KF25 vacuum adapter；The high vacuum ionization gauge is connect with the five cavities body
Interface is KF40 vacuum adapter；The interface that the vacuum flapper valve is connect with the five cavities body is KF40 vacuum adapter；It is described
Molecular pump is connected by ISO160 flange port with the five cavities body.
Further, in one of optimal technical scheme of the present embodiment, the molecular pump is air-cooled molecular pump.
Further, in one of optimal technical scheme of the present embodiment, the vacuum flapper valve, which is connected with, to be used for
Bellows needed for connecting low-temperature (low temperature) vessel device.
It further, further include electric control system in one of optimal technical scheme of the present embodiment, the electricity
Gas control system is electrically connected with the molecular pump, twin-stage sliding vane rotary pump, low vacuum Pirani gauge, high vacuum ionization gauge respectively.
It further, further include standby power supply module in one of optimal technical scheme of the present embodiment, the electricity
Source module is electrically connected with the electric control system.
Further, in one of optimal technical scheme of the present embodiment, the power module is small generator.
It further, further include cabinet in one of optimal technical scheme of the present embodiment；The lower end of the cabinet
It is provided with universal wheel.
Further, in one of optimal technical scheme of the present embodiment, car puller hook is provided on the cabinet.
Portable vaccum-pumping equipment provided in this embodiment, tool are able to solve existing large size and vacuumize and set there are two station
Standby to be not suitable in the problem that vacuumizes with gas cylinder, the utility model is mainly used for mending in line vacuum for low-temperature (low temperature) vessel and takes out.This set system
The method that system uses ensure that speed in the low-temperature (low temperature) vessel degasification course of work and vacuum degree and each component cooperation of whole system
The reasonability used uses the form of mechanical pump and big pumping speed molecular pump integrated combination, is equipped with four universal caster wheels, can be any
It is mobile.Have the characteristics that pumping speed it is fast, using it is simple, easy to remove, be convenient for carrying, and then solve automobile-used LNG gas cylinder and must dismantle
The problem of vacuumizing；Be highly suitable for low-temperature (low temperature) vessel be especially automobile-used LNG gas cylinder it is online benefit vacuumize.In addition, the application adopts
With big pumping speed molecular pump, there is higher evacuation efficiency.
The various embodiments described above are only preferred embodiments of the present invention, in the art, all to be based on this reality
With the changes and improvements in new technique scheme, should not exclude except the protection scope of the utility model.
Claims (9)
1. a kind of portable double-station vacuumizing device characterized by comprising molecular pump, twin-stage sliding vane rotary pump, five cavity bodies,
Low vacuum Pirani gauge, high vacuum ionization gauge and vacuum flapper valve；After the twin-stage sliding vane rotary pump and the molecular pump are connected in series, lead to
The molecular pump is crossed to be connected with the five cavities body；One in the two of them connecting pin of the five cavities body is used for and institute
It states low vacuum Pirani gauge to be connected, another with the high vacuum ionization gauge for being connected；The residue two of the five cavities body
A connecting pin is connected with a vacuum flapper valve respectively.
2. portable double-station vacuumizing device according to claim 1, which is characterized in that the low vacuum Pirani gauge with
The interface of the five cavities body connection is KF25 vacuum adapter；The interface that the high vacuum ionization gauge is connect with the five cavities body
For KF40 vacuum adapter；The interface that the vacuum flapper valve is connect with the five cavities body is KF40 vacuum adapter；The molecule
Pump is connected by ISO160 flange port with the five cavities body.
3. portable double-station vacuumizing device according to claim 1, which is characterized in that the molecular pump is air-cooled point
Son pump.
4. portable double-station vacuumizing device according to claim 1, which is characterized in that the vacuum flapper valve connection
Have for bellows needed for connecting low-temperature (low temperature) vessel device.
5. portable double-station vacuumizing device according to claim 1, which is characterized in that further include electrical control system
System, the electric control system are electrically connected with the molecular pump, twin-stage sliding vane rotary pump, low vacuum Pirani gauge, high vacuum ionization gauge respectively
It connects.
6. portable double-station vacuumizing device according to claim 5, which is characterized in that further include backup power source mould
Block, the power module are electrically connected with the electric control system.
7. portable double-station vacuumizing device according to claim 6, which is characterized in that the power module is small-sized
Generator.
8. portable double-station vacuumizing device according to claim 1, which is characterized in that further include cabinet；The machine
The lower end of case is provided with universal wheel.
9. portable double-station vacuumizing device according to claim 8, which is characterized in that be provided with and drag on the cabinet
Hitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699723.5U CN209100211U (en) | 2018-10-19 | 2018-10-19 | A kind of portable double-station vacuumizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699723.5U CN209100211U (en) | 2018-10-19 | 2018-10-19 | A kind of portable double-station vacuumizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100211U true CN209100211U (en) | 2019-07-12 |
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ID=67155711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821699723.5U Active CN209100211U (en) | 2018-10-19 | 2018-10-19 | A kind of portable double-station vacuumizing device |
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| CN (1) | CN209100211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901450A (en) * | 2019-11-19 | 2021-06-04 | 核工业西南物理研究院 | Movable rapid high-vacuum air pumping system |
-
2018
- 2018-10-19 CN CN201821699723.5U patent/CN209100211U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901450A (en) * | 2019-11-19 | 2021-06-04 | 核工业西南物理研究院 | Movable rapid high-vacuum air pumping system |
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