CN207778017U - A kind of low-temperature liquid filling device with automatic blowing - Google Patents
A kind of low-temperature liquid filling device with automatic blowing Download PDFInfo
- Publication number
- CN207778017U CN207778017U CN201820135904.9U CN201820135904U CN207778017U CN 207778017 U CN207778017 U CN 207778017U CN 201820135904 U CN201820135904 U CN 201820135904U CN 207778017 U CN207778017 U CN 207778017U
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- purging
- valve
- pipeline
- charging device
- low
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Abstract
A kind of low-temperature liquid filling device with automatic blowing, including, filling pump and charging device, a purging ring are set to above filling pump；Purge manifold, one end connects instrument supply gas import pipe and/or nitrogen ingress pipe road, the other end set two-way, is connected to the purging ring by the first purging pipeline all the way, another way connection the second purging pipeline, the outlet end alignment charging device of the second purging pipeline fill mouth；It is equipped with the first solenoid valve, first filter in the instrument supply gas import pipe, second solenoid valve, the second filter are equipped in the nitrogen ingress pipe road；Dew point analysis instrument is set in purging manifold；Close to switch, setting is in the charging device placement position, and corresponding charging device fills mouth；Controller is electrically connected with the first, second solenoid valve, close to switch, dew point analysis instrument respectively.The utility model solves the problems, such as filling pump and the frosting of charging device surface during filling cryogenic liquid.
Description
Technical field
The utility model belongs to air separation liquid and fills field, and in particular to a kind of cryogenic liquid with automatic blowing fills
Assembling device.
Background technology
With the fast development of Chinese national economy, the gas industry as one of leading industry is grown rapidly,
Demand of the market to cryogenic liquid increasingly increases, and cryogenic liquid tank lorry fills quantity also with increasingly increasing.Currently, Low Temperature Liquid
The filling of body is all made of liquid and fills hose and high vacuum cryogenic liquid slot by one section again after low-temperature liquid filling pump pressurization
The mode that vehicle is connected carries out cryogenic liquid to fill sale.
Since Large Air Separation Devices are detached in conventional oxygen nitrogen, all kinds of byproducts are more, and with low temperature in byproduct
Based on fluid product, all kinds of cryogenic products for storage groove tank it is relatively more.Due to the purity requirement to different product
It is not quite similar, therefore, each groove tank is provided with a set of liquid filling equipment, including two groups of Pneumatic two-position formula shutoff valves, respectively
It is installed on the import and outlet of liquid filling pump, it is logical between cryogenic liquid and low-temperature liquid filling pump in groove tank for controlling
Break-make between disconnected, liquid filling pump and liquid tank car；One low-temperature liquid filling pump, for defeated after liquid pressing in groove tank
It send；A piece low-temperature liquid filling hose, for the connection between low-temperature liquid filling pump and liquid tank car, by the low temperature after pressurization
Liquid is filled with high vacuum cryogenic liquid tank lorry；One group of pneumatic diaphragm control valve, is installed on liquid filling pump outlet conduit and groove tank
Between, as the return valve of liquid filling pump, pump discharge pressure is filled for controlling liquid.
In filling process, it is cryogenic liquid due to filling medium, under cold service, liquid filling pump and fills hose
Surface will appear frost, and with the increase for filling the time, and the degree of surface frosting can also increase.After filling,
Have one layer of frost on the shell of liquid filling pump, will absorb heat under atmospheric temperature effect and melt, to form a large amount of water
Point, it due to there being little particle dust in air, is combined to form the water droplet with impurity with water, water droplet, which is attached to, fills pump case
Gap location, after wherein moisture at any time and after evaporating, in the little particle dust that condenses just be attached to gap location, it is long-term in this way,
Dust at filling pump body clearance will be stepped up, and can influence the sealing performance of shell, be filled for liquid and be brought security risk.
On the other hand it fills after hose is removed and is placed into designated position, under the action of atmospheric temperature, fills soft
The frost tied in pipe surface gradually melts slow-absorbing amount of heat to form a large amount of moisture, due to filling hose and tank car
The joint of connection has no any safeguard measure, is directly contacted with ambient air, and the little particle impurity in air and moisture can be into
Enter to filling inside hose and be attached on tube wall, under the influence of cold and hose defrost heat-absorbing action are remained when filling,
Filling inside hose little particle impurity will attract each other to form large granular impurity, and moisture will be condensed into ice pellets, if making again at this time
Hose is filled with this and carries out charging operation, then the time that large granular impurity and ice pellets are thoroughly blown down will be greatly increased, and influence liquid
The whole efficiency that body fills, and the impurity and ice pellets not blown down will influence the purity of fluid product.
Invention content
The purpose of this utility model is to provide a kind of low-temperature liquid filling device with automatic blowing, solve fill it is low
Liquid filling pump and charging device such as fill hose surface frosting adverse effect during geothermal liquid, and guarantee filled
The purity of cryogenic liquid in journey, while extending liquid filling pump and filling the service life of hose.
In order to achieve the above objectives, the technical solution of the utility model is：
A kind of low-temperature liquid filling device with automatic blowing, including, filling pump, input end connects liquid by pipeline
Storage tank, outlet end connect a charging device by pipeline；It further includes that a purging ring is set to above the filling pump；Purging
Manifold, one end connection instrument supply gas import pipe and/or nitrogen ingress pipe road, the other end set two-way, pass through the first purging all the way
Pipeline is connected to the inlet end of the purging ring, another way connection the second purging pipeline, the outlet end of the second purging pipeline
Alignment charging device fills mouth；In purging manifold pressure reducing valve, safety valve, pressure switch are set gradually along gas input direction；
The instrument supply gas import pipe is connected to instrument supply gas air source, and the first solenoid valve, the first mistake are equipped in the instrument supply gas import pipe
Filter；The nitrogen ingress pipe road is connected to Nitrogen source gases, and second solenoid valve, the second filtering are equipped in the nitrogen ingress pipe road
Device；Dew point analysis instrument is set in purging manifold；Close to switch, setting is in the charging device placement position, and correspondence fills
Device fills mouth；Controller is electrically connected with the first solenoid valve, second solenoid valve, close to switch, dew point analysis instrument respectively.
Further, the charging device is to fill hose.
First, second solenoid valve is two formula solenoid valves.
The pressure reducing valve is adjustable Self-operated reducing valve.
Again, the first shut-off valve, the second shut-off valve are respectively equipped at first filter both ends in the instrument supply gas import pipe.
In the nitrogen ingress pipe road third shut-off valve, the 4th shut-off valve are respectively equipped at the second filter both ends.
Also, being equipped with the 5th shut-off valve in the first purging pipeline.
It is equipped with the 6th shut-off valve in the second purging pipeline.
Liquid of the utility model in air separation unit fills to be used in process, is a kind of utilize present in air separation unit
More than needed nitrogen or instrument supply gas lead to designated position by import pipe, and solenoid valve control nitrogen and instrument supply gas is logical in import pipe
It is disconnected, through granule foreign contained in filter removal air source, monitors the moisture in air source on-line through dew point analysis instrument, pass through
Pressure reducing valve, which is decompressed to after appropriate pressure, fills liquid that pump case is purged, hose is such as filled to charging device, and to pour drying close
Seal gas.
When work, when detecting when confirming that charging device is placed in correct position close to switch of charging device position, send out
Signal is to controller, and controller controls the first solenoid valve or second solenoid valve is connected, on the instrument supply gas manifold of air separation unit
Nitrogen on instrument air or nitrogen header pipe draws the present apparatus by instrument supply gas ingress pipe, nitrogen ingress pipe road.The nitrogen of importing
Or instrument air is filtered by filter, after dew point analysis and pressure reducing valve, safety valve and pressure switch voltage stabilizing, is divided into two-way, one
Road leads to the purging ring above liquid filling pump by the first purging pipeline, and defrosting heating is carried out to liquid filling pump.Another way
Charging device is led to by the second purging pipeline such as to fill in hose, and 5~10kpa micro-positive pressure gas is filled with to charging device inside
Body not only plays the role of heating purging, but also can prevent the entrance of humid air.
The utility model is using the moisture in the nitrogen or instrument air of the detection importing of dew point analysis instrument, if detection
Excessively high to moisture, dew point analysis instrument sends information to controller, then controller controls the first solenoid valve, second solenoid valve
Closing.
The gas that the utility model uses is the low-pressure nitrogen that space division is had more than needed or the instrument air itself provided, without separately
Add equipment；Use can be switched between nitrogen and instrument air mutually, when dew point analysis instrument detects that a certain gas dew point is super
Another gas can be automatically switched to when mark to use, such as currently used instrument air detects moisture through dew point analysis instrument
After excessively high, the first solenoid valve can be closed by the preset program of controller, open second solenoid valve, nitrogen is imported, to
It realizes and automatically switches operation, ensure the regular supply for subsequently using gas.
Pressure reducing valve, safety valve, pressure switch constitute one group of pressure-control valve in the utility model, for stablize nitrogen and
The pressure of instrument air prevents it due to pressure height influence of fluctuations to sealing effect, can also realize that the system after superpressure is automatic
Protection.
The utility model will purge ring and be arranged above filling pump, total from instrument supply gas manifold, the nitrogen of air-seperation system
The instrument air or nitrogen imported in pipe is by purging ring spray on filling pump case, due to the instrument air or nitrogen temperature of importing
Degree is room temperature, so, these gases carry out heating defrosting to filling the frost tied in pump case, reach heating purging effect.
The pressure of nitrogen or instrument air Jing Guo Jian Ya is 5~10kpa by the utility model, and temperature is room temperature.Due to
The pressure of gas is slightly above atmospheric pressure and belongs to micro-positive pressure gas, can by second purging pipeline be blown into charging device such as fill it is soft
In pipe, it is filled with micro-positive pressure drying blanket gas in hose filling, keeps inside hose drying, playing prevents humid air from entering, together
When also have heating purging effect, ensure filling process in cryogenic liquid purity, raising fill effect.
The beneficial effects of the utility model：
1) the utility model is inducted by using space division is had more than needed and fills pump case after low-pressure nitrogen or instrument supply gas decompression
In the purging ring and charging device of top, so that liquid is filled pump case heating purging, remove the knot of filling pump surface of shell
Frost extends service life to reduce the risk of liquid filling pump body clearance leakage；Charging device can be if filling hose
Inside is in slight positive pressure state when no charging operation, prevents impurity and moisture from entering inside hose, it is ensured that the purity of cryogenic liquid,
It improves and fills effect.
2) the utility model solve charging device without using in the case of, since impurity in air and moisture enter,
So that the problem of being easily formed bulky grain solid impurity and ice pellets under low temperature environment when filling, reduces purging when filling and sets
The time required to changing charging device, reduction fills loss, and raising fills efficiency.
3) the utility model improves the utilization rate of low-pressure nitrogen product, reduces nitrogen emptying rate, also reduces space division
Overall operation energy consumption.
4) the utility model package unit takes up space small, it is easily operated, need not shut down, can long-term on-line operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the utility model.
Specific implementation mode
Referring to Fig. 1, a kind of low-temperature liquid filling device with automatic blowing of the utility model, including, filling pump 1,
Input end connects wet tank by pipeline, and outlet end connects a charging device 2 by pipeline；It further includes a purging ring 3,
It is set to 1 top of the filling pump；Manifold L1 are purged, one end connects instrument supply gas import pipe L2 and/or nitrogen ingress pipe road
L3, the other end set two-way, are connected to the inlet end of the purging ring 3, another way connection the by the first purging pipeline L4 all the way
Two purging pipeline L5, the outlet end alignment charging device 2 of the second purging pipeline L5 fill mouth；It purges in manifold L1 along gas
Body input direction sets gradually pressure reducing valve 4, safety valve 5, pressure switch 6；The instrument supply gas import pipe L2 and instrument supply gas air source
It is connected to, the first solenoid valve F1, first filter 7 is equipped in the instrument supply gas import pipe L2；The nitrogen ingress pipe road L3 with
Nitrogen source gases are connected to, and second solenoid valve F1, the second filter 8 are equipped in the nitrogen ingress pipe road L3；Dew point analysis instrument 9, if
It is placed in purging manifold L1；Close to switch 10, setting corresponds to filling for charging device 2 in the charging device placement position
Mouthful；Controller 11 is electrically connected with the first solenoid valve F1, second solenoid valve F2, dew point analysis instrument 9, close switch 10 respectively.
Further, charging device 2 described in the present embodiment is to fill hose.
Described first, second solenoid valve F1, F2 are two formula solenoid valves.
Pressure reducing valve 4 described in the present embodiment is adjustable Self-operated reducing valve, can be according to the reality of filling pump 1 and charging device 2
Gas pressure in the situation adjustment purging manifold L1 of border, makes it the heating purging effect under the conditions of meeting respectively.
Again, in the instrument supply gas import pipe L2 7 both ends of first filter be respectively equipped with the first shut-off valve F3, second section
Only valve F4.
In the nitrogen ingress pipe road L3 third shut-off valve F5, the 4th shut-off valve are respectively equipped at the second filter both ends
F6。
Also, being equipped with the 5th shut-off valve F7 in the first purging pipeline L4.
It is equipped with the 6th shut-off valve F8 in the second purging pipeline L5.
When the present embodiment works, correct position is placed in when detection hose position fills hose close to the confirmation of switch 10
When, signal is sent out to controller 11, and controller 11 controls the first solenoid valve F1 or second solenoid valve F2 is connected, in air segregative line
Instrument air in the instrument supply gas manifold A of system or the nitrogen on nitrogen header pipe B pass through instrument supply gas ingress pipe L2, nitrogen ingress pipe L3
Import the present apparatus.The nitrogen or instrument air of importing are divided into two-way after filtering, voltage stabilizing and dew point analysis, pass through all the way
One purging pipeline L4 leads to the purging ring 3 of 1 top of liquid filling pump, and heating defrosting is carried out to 1 shell of liquid filling pump.Another way
It leads to by the second purging pipeline L5 and fills hose, make to fill inside hose and be filled with micro-positive pressure gas, both played heating purging
Effect, and the entrance of humid air can be prevented.
In the present embodiment, use can be switched between nitrogen and instrument air mutually, when dew point analysis instrument 9 detect it is a certain
Gas dew point can automatically switch to another gas and use when exceeded, such as currently used instrument air is examined through dew point analysis instrument 9
Measure moisture it is excessively high after, the first solenoid valve F1 can be closed by the preset program of controller 11, opens second solenoid valve
F2 imports nitrogen, to realize automatic switchover operation, ensures the regular supply for subsequently using gas.
The present embodiment depressurize in order to prevent after gas pressure it is excessively high cause equipment safety hidden danger, decompression post-purge manifold
L1 is equipped with corresponding safety valve 5 and pressure switch 6, and the action of pressure switch 6 sends out acousto-optic in Central Control Room first after gas superpressure
Alarm reminds operating personnel to check, safety valve 5 acts if pressure persistently increases, and over-pressure gas is emitted into safety zone
Domain reduces system integral pressure.
In the present embodiment, instrument supply gas import pipe L2, nitrogen ingress pipe road L3 use stainless steel, instrument supply gas ingress pipe
It is connected between road L2 and instrument supply gas manifold A, between nitrogen ingress pipe road L3 and nitrogen header pipe B using welding manner.Instrument conductance
Enter and take flanged joint between pipeline L2 and the first solenoid valve F1, first filter 7, the first shut-off valve F3, the second shut-off valve F4,
Method is taken between nitrogen ingress pipe road L3 and second solenoid valve F2, the second filter 8, third shut-off valve F5, the 4th shut-off valve F6
Orchid connection, facilitates first filter 7, the cleaning of the second filter 8 and the replacement of each valve.The sampling line of dew point analysis instrument 9
It is connect using welding manner between purging manifold L1.
Claims (8)
1. a kind of low-temperature liquid filling device with automatic blowing, including：
Filling pump, input end connect wet tank by pipeline, and outlet end connects a charging device by pipeline；Its feature exists
In, further include,
One purging ring, is set to above the filling pump；
Manifold is purged, one end connection instrument supply gas import pipe and/or nitrogen ingress pipe road, the other end set two-way, pass through all the way
First purging pipeline is connected to the inlet end of the purging ring, another way connection the second purging pipeline, the second purging pipeline
Outlet end alignment charging device fill mouth；In purging manifold pressure reducing valve, safety valve, pressure are set gradually along gas input direction
Power switchs；The instrument supply gas import pipe is connected to instrument supply gas air source, in the instrument supply gas import pipe be equipped with the first solenoid valve,
First filter；The nitrogen ingress pipe road is connected to Nitrogen source gases, and second solenoid valve, the are equipped in the nitrogen ingress pipe road
Tow filtrator；
Dew point analysis instrument is set in purging manifold；
Close to switch, setting is in the charging device placement position, and corresponding charging device fills mouth；
Controller is electrically connected with the first solenoid valve, second solenoid valve, close to switch, dew point analysis instrument respectively.
2. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that the charging device
To fill hose.
3. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that described first,
Two solenoid valves are two formula solenoid valves.
4. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that the pressure reducing valve is
Adjustable Self-operated reducing valve.
5. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that the instrument conductance
Enter in pipeline and is respectively equipped with the first shut-off valve, the second shut-off valve at first filter both ends.
6. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that the nitrogen imports
In pipeline third shut-off valve, the 4th shut-off valve are respectively equipped at the second filter both ends.
7. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that first purging
The 5th shut-off valve is equipped in pipeline.
8. the low-temperature liquid filling device according to claim 1 with automatic blowing, which is characterized in that second purging
The 6th shut-off valve is equipped in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820135904.9U CN207778017U (en) | 2018-01-26 | 2018-01-26 | A kind of low-temperature liquid filling device with automatic blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820135904.9U CN207778017U (en) | 2018-01-26 | 2018-01-26 | A kind of low-temperature liquid filling device with automatic blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207778017U true CN207778017U (en) | 2018-08-28 |
Family
ID=63210760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820135904.9U Expired - Fee Related CN207778017U (en) | 2018-01-26 | 2018-01-26 | A kind of low-temperature liquid filling device with automatic blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207778017U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
| CN110410667A (en) * | 2019-07-14 | 2019-11-05 | 杭州杭氧股份有限公司 | A kind of device that liquid hydrogen fills |
| CN111721895A (en) * | 2020-07-21 | 2020-09-29 | 张家港盈达气体有限公司 | Automatic gas sampling and analyzing device |
| CN113368437A (en) * | 2021-04-26 | 2021-09-10 | 浙江杭消消防设备有限公司 | Automatic fire extinguishing ball and refilling method thereof |
-
2018
- 2018-01-26 CN CN201820135904.9U patent/CN207778017U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
| CN110410667A (en) * | 2019-07-14 | 2019-11-05 | 杭州杭氧股份有限公司 | A kind of device that liquid hydrogen fills |
| CN111721895A (en) * | 2020-07-21 | 2020-09-29 | 张家港盈达气体有限公司 | Automatic gas sampling and analyzing device |
| CN113368437A (en) * | 2021-04-26 | 2021-09-10 | 浙江杭消消防设备有限公司 | Automatic fire extinguishing ball and refilling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20210126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |