CN208951669U - A kind of double metering dispensers based on single current gauge - Google Patents
A kind of double metering dispensers based on single current gauge Download PDFInfo
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- CN208951669U CN208951669U CN201820686651.4U CN201820686651U CN208951669U CN 208951669 U CN208951669 U CN 208951669U CN 201820686651 U CN201820686651 U CN 201820686651U CN 208951669 U CN208951669 U CN 208951669U
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- low temperature
- valve
- pneumatic operated
- operated valve
- check
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Abstract
The utility model describes a kind of double metering dispensers based on single current gauge, including liquid feeding gun platform, return-air rifle and liquid feeding rifle, one end of liquid feeding gun platform is connected with one end of first check-valve, the other end of first check-valve is separately connected one end of circulation line and the first low temperature pneumatic operated valve, the other end of first low temperature pneumatic operated valve is separately connected one end of one end of cryogenic globe valve, one end of the second low temperature pneumatic operated valve and mass flowmenter, and the other end of the second low temperature pneumatic operated valve connects inlet pipe；The other end of mass flowmenter is separately connected one end of one end of second check-valve, one end of third low temperature pneumatic operated valve and third check-valves, the other end of second check-valve is connected to return-air rifle, and the other end of third low temperature pneumatic operated valve is separately connected the other end and liquid feeding rifle of third check-valves.The utility model greatly reduces product cost, improves the cost performance of product, improves the measuring accuracy of dispenser.
Description
Technical field
The utility model relates to the LNG of automobile and liquid hydrogen aerating technology, especially a kind of double meterings based on single current gauge
Dispenser belongs to technical field of electric automation.
Background technique
LNG is the abbreviation of liquefied natural gas, it is to handle gaseous natural gas by the purification processes such as dehydration, desulfurization, drop
Temperature is transformed into liquid to -162 DEG C, therefore LNG is easy gasification.LNG as motor vehicle fuel, have energy density is high, continual mileage is long,
The advantages that clean and environmental protection, has been more and more widely used on automobile, with the increase of the construction amount of LNG gas station, as
The demand of the LNG dispenser of measuring equipment is also increasing.Other than LNG, liquid hydrogen is also the important development of new-energy automobile
Direction, liquid hydrogen are hydrogen_cooling to -273 DEG C, and hydrogen becomes liquid from gaseous state.Since hydrogen is as fuel cell car energy
Source, emission are water, have the characteristics that energy density is high, continual mileage is long, no pollution, therefore be also future source of energy development
Important directions, our countries are greatly developing fuel cell car at present, and the demand to hydrogenation stations is also increasing, liquid hydrogen aerating
The use of machine will be more and more extensive.
Now currently, existing LNG, liquid hydrogen mechanism of qi will realize filling metering and return-air function of measuring, usually require to configure
Using two mass flowmenters, a mass flowmenter is used for Metering, and another mass flowmenter is measured for return-air.It is many
Well known, for the low temperature mass flowmenter of cryogenic media metering, price in the market is very high, and the price of two flowmeters is just
Account for 70% or so of whole dispenser cost.Current dispenser is had the disadvantages that by the way of double fluid gauge metering
1) double fluid gauge is used, the cost of raw material is high, and product cost is low；2) there is no control valve, return-air flowmeter in return line
When start metering be unable to control, this causes the measuring accuracy of complete machine lower.
Utility model content
For above-mentioned deficiency in the prior art, the main purpose of the utility model is that it is whole to solve existing current dispenser
Body higher cost, the lower problem of control precision, and a kind of low cost is provided, high-precision double meterings based on single current gauge add
Mechanism of qi.
The technical solution of the utility model includes: a kind of double metering dispensers based on single current gauge, including liquid feeding gun platform, return-air
Rifle and liquid feeding rifle, which is characterized in that one end of the liquid feeding gun platform is connected with one end of first check-valve, first check-valve it is another
One end is separately connected one end of circulation line and the first low temperature pneumatic operated valve, and the other end of the first low temperature pneumatic operated valve is separately connected low temperature
One end of shut-off valve, one end of the second low temperature pneumatic operated valve and mass flowmenter one end, the other end and low temperature of cryogenic globe valve
The other end of safety valve is connected with release pipeline, and the other end of the second low temperature pneumatic operated valve connects inlet pipe；First
Pressure gauge and pressure sensor, the other end point of the mass flowmenter are also connected between low temperature pneumatic operated valve and mass flowmenter
Not Lian Jie second check-valve one end, one end of third low temperature pneumatic operated valve and one end of third check-valves, the second check-valve
The other end be connected to return-air rifle, the other end of the third low temperature pneumatic operated valve be separately connected third check-valves the other end and plus
Liquid rifle.
In the utility model, the circulation line, release pipeline and inlet pipe are existing pipeline knots on dispenser
Structure, the utility model are the innovations carried out on this basis, therefore for the structure of above-mentioned three existing pipelines without excessive
Description, those skilled in the art can be clear from its structure and connection type.
Compared with the existing technology, the utility model has the following beneficial effects:
1, the utility model can realize the function of two flowmeters using a mass flowmenter；And reduce one
After flowmeter, so that the dispenser cost of raw material reduces amplitude and reaches 30%, product cost is greatly reduced, the property of product is improved
Valence ratio.
2, the dispenser setting of the utility model is only controlled by valve, is just able to achieve return-air metering, therefore metering is opened
Begin and the end time be all it is controllable, improve the measuring accuracy of dispenser.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of internal structure of double metering dispensers based on single current gauge of the utility model.
Fig. 2 is a kind of double metering dispenser another kind structural schematic diagrams based on single current gauge of the utility model.
In figure, 1-liquid feeding gun platform, 2-return-air rifles, 3-liquid feeding rifles, 4-first check-valves, 5-circulation lines, 6-the
One low temperature pneumatic operated valve, 7-cryogenic globe valves, 8-low-temperature safety valves, the 9-the second low temperature pneumatic operated valve, 10-mass flowmenters,
11-release pipelines, 12-inlet pipes, 13-pressure gauges, 14-pressure sensors, 15-second check-valves, 16-thirds are stopped
Return valve, 17-third low temperature pneumatic operated valves, the 18-the four low temperature pneumatic operated valve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1: as shown in Figure 1, a kind of double metering dispensers based on single current gauge, including liquid feeding gun platform 1, return-air rifle
2 and liquid feeding rifle 3, one end of the liquid feeding gun platform 1 be connected with one end of first check-valve 4, the other end of first check-valve 4 difference
One end of circulation line 5 and the first low temperature pneumatic operated valve 6 is connected, the other end of the first low temperature pneumatic operated valve 6 is separately connected low temperature cut-off
One end of valve 7, one end of the second low temperature pneumatic operated valve 9 and mass flowmenter 10 one end, the other end of cryogenic globe valve 7 and low
The other end of warm safety valve 8 is connected with release pipeline 11, and the other end of the second low temperature pneumatic operated valve 9 connects inlet pipe
12；Pressure gauge 13 and pressure sensor 14, the quality are also connected between the first low temperature pneumatic operated valve 6 and mass flowmenter 10
The other end of flowmeter 10 is separately connected one end of second check-valve 15, one end of third low temperature pneumatic operated valve 17 and third check-valves
16 one end, the other end of the second check-valve 15 are connected to return-air rifle 2, the other end point of the third low temperature pneumatic operated valve 17
Not Lian Jie third check-valves 16 the other end and liquid feeding rifle 3.
1 working principle of embodiment: before aerating, return-air rifle 2 is inserted into the gas phase mouth of vehicle-mounted bottle, opens the first low temperature gas
Dynamic valve 6, closes third low temperature pneumatic operated valve 17 and the second low temperature pneumatic operated valve 9, since mass flowmenter 10 has the function of bidirectional measuring
Can, the gas in vehicle-mounted bottle is returned to by return-air rifle 2, second check-valve 15, mass flowmenter 10, the first low temperature pneumatic operated valve 6
The circulation port of storage tank；To realize the function of return-air metering.
Before liquid feeding, mass flowmenter and the pre-cooling of liquid feeding rifle are first carried out, pre- cold flow is: liquid feeding rifle 3 is inserted into liquid feeding rifle
On seat 1, the first low temperature pneumatic operated valve 6 is closed, opens valve third low temperature pneumatic operated valve 17 and the second low temperature pneumatic operated valve 9, LNG successively flows
Cross the second low temperature pneumatic operated valve 9, mass flowmenter 10, third low temperature pneumatic operated valve 17, liquid feeding rifle 3, liquid feeding gun platform 1, second check-valve
15, enter LNG storage tank by circulation port pipeline；It is the temperature of dispenser computer detection mass flowmenter 10, close in cyclic process
Degree and gain, when reaching setting value, the pre-cooling of liquid feeding rifle is completed.
When liquid feeding, liquid feeding rifle 3 is inserted on vehicle-mounted bottle, first closes third low temperature pneumatic operated valve 17, it is pneumatic to open the first low temperature
Valve 6 and the second low temperature pneumatic operated valve 9, LNG carry out internal pre-cooling, detect the temperature, density and gain of mass flowmenter, reach setting
When value, the first low temperature pneumatic operated valve 6 is closed, third low temperature pneumatic operated valve 17 is opened and carries out liquid feeding.
Embodiment 2: being that second check-valve 15 is connected to second on the basis of 1 technical solution of embodiment referring to fig. 2
Between low temperature pneumatic operated valve 9 and mass flowmenter 10, and the 4th low temperature gas is connected between first check-valve 4 and liquid feeding gun platform 1
Dynamic valve 18, its working principles are as follows:
Before aerating, return-air rifle 2 is inserted into the gas phase mouth of vehicle-mounted bottle, opens third low temperature pneumatic operated valve 17 and the second low temperature
Pneumatic operated valve 9 closes the first low temperature pneumatic operated valve 6, and the gas in vehicle-mounted bottle passes through return-air rifle 2, second check-valve 15, mass flowmenter
10, the first low temperature pneumatic operated valve 6 returns to the circulation port of storage tank；To realize the function of return-air metering.
Before liquid feeding, mass flowmenter and the pre-cooling of liquid feeding rifle are first carried out, pre- cold flow is: liquid feeding rifle 3 is inserted into liquid feeding rifle
On seat 1, the first low temperature pneumatic operated valve 6 is closed, opens valve third low temperature pneumatic operated valve 17 and the second low temperature pneumatic operated valve 9, LNG successively flows
Cross the second low temperature pneumatic operated valve 9, mass flowmenter 10, third low temperature pneumatic operated valve 17, liquid feeding rifle 3, liquid feeding gun platform 1, second check-valve
15, enter LNG storage tank by circulation port pipeline；It is the temperature of dispenser computer detection mass flowmenter 10, close in cyclic process
Degree and gain, when reaching setting value, the pre-cooling of liquid feeding rifle is completed.
When liquid feeding, liquid feeding rifle 3 is inserted on vehicle-mounted bottle, first closes third low temperature pneumatic operated valve 17, it is pneumatic to open the first low temperature
Valve 6 and the second low temperature pneumatic operated valve 9, LNG carry out internal pre-cooling, detect the temperature, density and gain of mass flowmenter, reach setting
When value, the first low temperature pneumatic operated valve 6 is closed, third low temperature pneumatic operated valve 17 is opened and carries out liquid feeding.
It should be noted that above embodiments are only to illustrate technical solutions of the utility model rather than restriction technologies scheme,
Although applicant is explained in detail the utility model referring to preferred embodiment, those skilled in the art should be managed
Solution, those to technical solutions of the utility model carry out modification or equivalent replacement, cannot be detached from the technical program objective and
Range should all cover in the utility model claims range.
Claims (1)
1. a kind of double metering dispensers based on single current gauge, including liquid feeding gun platform (1), return-air rifle (2) and liquid feeding rifle (3),
It is characterized in that, one end of the liquid feeding gun platform (1) is connected with one end of first check-valve (4), the other end of first check-valve (4)
It is separately connected one end of circulation line (5) and the first low temperature pneumatic operated valve (6), the other end of the first low temperature pneumatic operated valve (6) connects respectively
Connect one end, one end of the second low temperature pneumatic operated valve (9) and one end of mass flowmenter (10) of cryogenic globe valve (7), low temperature cut-off
The other end of valve (7) and the other end of low-temperature safety valve (8) are connected with release pipeline (11), the second low temperature pneumatic operated valve
(9) the other end connects inlet pipe (12)；Pressure is also connected between the first low temperature pneumatic operated valve (6) and mass flowmenter (10)
The other end of power table (13) and pressure sensor (14), the mass flowmenter (10) is separately connected the one of second check-valve (15)
It holds, one end of one end of third low temperature pneumatic operated valve (17) and third check-valves (16), the other end of the second check-valve (15)
It is connected to return-air rifle (2), the other end of the third low temperature pneumatic operated valve (17) is separately connected the other end of third check-valves (16)
With liquid feeding rifle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686651.4U CN208951669U (en) | 2018-05-09 | 2018-05-09 | A kind of double metering dispensers based on single current gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686651.4U CN208951669U (en) | 2018-05-09 | 2018-05-09 | A kind of double metering dispensers based on single current gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208951669U true CN208951669U (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820686651.4U Expired - Fee Related CN208951669U (en) | 2018-05-09 | 2018-05-09 | A kind of double metering dispensers based on single current gauge |
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| CN (1) | CN208951669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426167A (en) * | 2018-05-09 | 2018-08-21 | 重庆厚海能源设备制造有限公司 | A kind of double metering filling machines based on single current gauge |
-
2018
- 2018-05-09 CN CN201820686651.4U patent/CN208951669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426167A (en) * | 2018-05-09 | 2018-08-21 | 重庆厚海能源设备制造有限公司 | A kind of double metering filling machines based on single current gauge |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20210509 |