CN214663680U - Double-gun liquid adding machine - Google Patents
Double-gun liquid adding machine Download PDFInfo
- Publication number
- CN214663680U CN214663680U CN202022669012.7U CN202022669012U CN214663680U CN 214663680 U CN214663680 U CN 214663680U CN 202022669012 U CN202022669012 U CN 202022669012U CN 214663680 U CN214663680 U CN 214663680U
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- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 124
- 239000007791 liquid phase Substances 0.000 claims description 11
- 239000012071 phase Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000003949 liquefied natural gas Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000007792 gaseous phase Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a double-gun liquid adding machine, including first filling pipeline, second filling pipeline, including the inlet, the inlet passes through the tee junction pipe and connects first filling pipeline, second filling pipeline, the exit end of tee junction pipe is connected with little circulation pipeline, be provided with little circulation control valve on the little circulation pipeline, little circulation control valve passes through pipe connection to return-air liquid mouth. The device adopts a pneumatic valve control mode with a unique small circulation function, realizes that double-gun liquid adding is not interfered with each other, and realizes reasonable filling logic and a control mode; the liquid adding machine is safer and more reliable; the device adopts the double-gun liquid adding machine with the single and small circulation function, and releases the space for installing one more pneumatic valves and pipelines, so that the whole vacuum box and the control PID pipeline are more concise in layout.
Description
Technical Field
The utility model relates to a LNG filling field especially relates to a double gun liquid feeding machine.
Background
LNG is short for liquefied natural gas, the main component of which is methane, and is generally recognized as the cleanest fossil energy on earth. The liquefied natural gas is colorless, tasteless, nontoxic and noncorrosive, the volume of the liquefied natural gas is about 1/625 of the volume of the same amount of gaseous natural gas, and the mass of the liquefied natural gas is only about 45 percent of the same volume of water. The manufacturing process comprises purifying natural gas produced in gas field, liquefying at ultralow temperature, and liquefying natural gas
And (5) carrying by a ship. After the liquefied natural gas is combusted, the pollution to the air is very small, and the heat emitted by the liquefied natural gas is large, so the liquefied natural gas is a relatively advanced energy source. The liquefied natural gas is liquid after being compressed and cooled to the condensation point (-161.5 ℃), and is usually stored in a low-temperature storage tank at-161.5 ℃ and about 0.1 MPa. The main component of the methane is methane, and the methane is transported by a special ship or an oil tank truck and is gasified again when in use.
In the application of the existing LNG filling station, almost all the double-gun liquid filling machine modules adopt a vacuum box (module) which is a double-gun liquid filling machine two-set system for controlling two sets of small circulation functions and a method for controlling PID; the main disadvantages of the two sets of double-gun liquid adding machines with small circulation function in the air-entrapping operation project are shown in the following aspects:
1) when one gun of the double-gun liquid adding machine is adding liquid, and the other liquid adding machine needs to be started, the double-gun liquid adding machine needs to be started firstly to enter a small circulation mode and then to enter a liquid adding mode; when the liquid feeding machine enters a small circulation mode, the liquid feeding of the liquid feeding machine can generate serious bias flow, so that when one gun is feeding liquid, the flow is too small, the liquid feeding time is prolonged, and the time cost is greatly increased;
2) the double-gun liquid adding machine with two small circulation functions is adopted, the vacuum box and the control PID are relatively complex, no safe and effective maintenance space exists, and certain safety risk exists.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the problems, the double-gun liquid adding machine is provided, the vacuum module with the special structure adopts a small-cycle pneumatic valve to control the cycle function of the double-gun liquid adding machine, the problem that the small-cycle functions of two sets of systems of the double-gun liquid adding machine are not required to be carried out respectively is solved, the starting time of the liquid adding machine is greatly saved, and the use time cost and the production material cost of a user are also saved.
The utility model adopts the technical scheme as follows:
the utility model provides a double-gun liquid feeding machine, includes first filling pipeline, second filling pipeline, including the inlet, the inlet passes through the tee junction pipe and connects first filling pipeline, second filling pipeline, the exit end of tee junction pipe is connected with little circulation pipeline, be provided with little circulation control valve on the little circulation pipeline, little circulation control valve passes through pipe connection to return-air liquid mouth.
Further, the utility model discloses a preferred structure of double-gun liquid feeding machine, the little circulating control valve with the connecting tube of tee bend connecting pipe is bent shape pipeline.
Further, two output ends of the three-way connecting pipe are respectively connected with a first liquid outlet and a second liquid outlet, the first liquid outlet and the second liquid outlet are both connected with a liquid phase flow meter, and output ends of the two liquid phase flow meters are respectively connected with a first liquid return port and a second liquid return port.
Further, the output end of the first liquid return port is connected with a liquid adding control valve, the output end of the second liquid return port is connected with a liquid adding control valve, and the liquid adding control valve is a pneumatic valve.
Furthermore, the output ends of the two liquid adding control valves are respectively connected with a first liquid adding opening and a second liquid adding opening through pipelines, the first liquid adding opening and the second liquid adding opening are both connected with filling gun openings, and the filling gun openings are both connected with filling guns.
Furthermore, the first filling pipeline and the second filling pipeline respectively comprise an air return channel and a gun inserting pipeline, the gun inserting pipeline comprises a gun inserting port, the gun inserting port is connected with a one-way valve through a pipeline, and the two one-way valves are respectively connected with a first air return port and a second air return port through pipelines; the first air return port and the second air return port are both connected with stop valves, and the stop valves are connected to the air return liquid ports through pipelines.
Further, the return air passageway includes the return air rifle mouth, the return air rifle mouth has the check valve through the pipe connection, the output of check valve is connected with the gaseous phase flowmeter, the output of gaseous phase flowmeter is connected to first return air mouth, second return air mouth through the pipeline.
Further, be provided with a plurality of needle valves on the pipe-line system, the needle valve is connected with the relief valve, the relief valve passes through pipe connection to the mouth that disperses.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. this device has utilized only little circulation function precooling mode, and two sets of pipelines are adjacent to be set up, fully precools two flowmeters simultaneously, ensures that the liquid feeding machine double gun has all played the precooling mode, guarantees the flowmeter and normally works, and the liquid feeding machine starts the double gun liquid feeding and is efficient.
2. The device adopts a pneumatic valve control mode with a unique small circulation function, realizes that double-gun liquid adding is not interfered with each other, and realizes reasonable filling logic and a control mode; the liquid adding machine is safer and more reliable;
3. the device can directly discharge liquid into the EAG gasifier from the bottom, thereby improving the exhaust efficiency and saving the overhaul and maintenance time and cost of the immersed pump;
4. the double-gun liquid adding machine with the single and small circulation function is adopted, and the space for one more pneumatic valve and installing the pipeline is released, so that the whole vacuum box and the control PID pipeline are more concise in layout.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the pipeline connection of the present invention;
the labels in the figure are: 1 is a liquid inlet; 2 is a first filling opening; 3 is a first return air port; 4 is a first liquid return port; 5 is a first liquid outlet; 6 is a check valve; 7 is a pneumatic valve; 8 is a three-way connecting pipe; 9 is a second filling port; 10 is a second return air port; 11 is a second liquid return port; 12 is a second liquid outlet; 13 is a gas return liquid port; 14 is a small-cycle control valve; 15 is a liquid phase flow meter; 16 is a liquid feed control valve;
17 is a filling muzzle; 18 is a gun insertion port; 19 is a check valve; 20 is a stop valve; 21 is a return air muzzle; 22 is a gas phase flow meter; 23 is a needle valve; 24 is a safety valve; 25 is a diffusing port; and 26 is a filter.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in the attached drawings 1-3, the utility model discloses a preferred embodiment of a double-gun liquid adding machine, which comprises a liquid inlet 1, the liquid inlet 1 is connected with a three-way connecting pipe 8, the three-way connecting pipe 8
The first output end of the three-way connecting pipe 8 is connected with a first filling pipeline, the second output end of the three-way connecting pipe 8 is connected with a second filling pipeline and a small circulation pipeline through a bifurcated pipe, a small circulation control valve 14 is arranged on the small circulation pipeline, and the small circulation control valve 14 is connected to a gas return liquid port 13 through a pipeline.
The connecting pipeline of the small circulation control valve 14 and the three-way connecting pipe 8 is a curved pipeline. The first filling pipeline and the second filling pipeline have the same structure.
Two output ends of the three-way connecting pipe 8 are respectively connected with a first liquid outlet 5 and a second liquid outlet 12, the first liquid outlet 5 and the second liquid outlet 12 are both connected with a liquid phase flow meter 15, and the output ends of the two liquid phase flow meters 15 are respectively connected with a first liquid return port 4 and a second liquid return port 11. The output end of the first liquid return port 4 is connected with a liquid adding control valve 16, the output end of the second liquid return port 11 is connected with the liquid adding control valve 16, and the liquid adding control valve 16 is a pneumatic valve 7. The output ends of the two liquid adding control valves 16 are respectively connected with a first liquid adding opening 2 and a second liquid adding opening 9 through pipelines, the first liquid adding opening 2 and the second liquid adding opening 9 are both connected with a filling gun opening 17, and the filling gun opening 17 is both connected with a filling gun.
The first filling pipeline and the second filling pipeline respectively comprise air return channels and gun inserting pipelines, the gun inserting pipelines comprise gun inserting ports 18, the gun inserting ports 18 are connected with one-way valves 19 through pipelines, and the two one-way valves 19 are respectively connected with a first air return port 3 and a second air return port 10 through pipelines; the first return air port 3 and the second return air port 10 are both connected with a stop valve 20, and the stop valve 20 is connected to the return air liquid port 13 through a pipeline. The return air passage comprises a return air gun port 21, the return air gun port 21 is connected with a one-way valve 19 through a pipeline, the output end of the one-way valve 19 is connected with a gas phase flowmeter 22, and the output end of the gas phase flowmeter 22 is connected to the first return air port 3 and the second return air port 10 through pipelines.
The pipeline system is provided with a plurality of needle valves 23, the needle valves 23 are connected with safety valves 24, and the safety valves 24 are connected to a dispersion port 25 through pipelines; when the pressure is too high, the air is diffused, so that the safety of equipment is protected.
In the specific operation process, the equipment needs to be pre-cooled before filling, the liquid filling gun is inserted into the gun inserting port 18, the liquid filling control valve 16 is opened, liquid hydrogen flows into the pipeline system, the liquid hydrogen can be partially vaporized due to the high temperature of the pipeline system, and the whole equipment is cooled in the vaporization process. Liquid hydrogen enters from the liquid inlet 1 and flows into the first filling pipeline and the second filling pipeline from the three-way connecting pipe 8 respectively.
The liquid hydrogen flows through the liquid phase flow meter 15, the filling control valve 16, to the filling gun, flows back through the filling gun to the gun insertion port 18, and then passes through the check valve 19 and the stop valve 20 to the gas return port 13. And the temperature of the whole filling equipment reaches the working temperature through circulation for a certain time.
During filling, a filling gun is inserted into a target, the air return port of the target is connected with the air return gun port 21 for filling, and simultaneously gas generated by the target returns to the air return liquid port 13 through the air return gun port 21, the one-way valve 19, the gas phase flowmeter 22 and the stop valve 20.
After the equipment is precooled and stops being used for a period of time, the temperature of the equipment rises back to some extent, but the equipment can be precooled by only small circulation to reach the use temperature. At this time, the feed control valve 16 is closed, and the small-cycle control valve 14 is opened. Liquid hydrogen flows from the liquid inlet 1 through the three-way connecting pipe 8 and the small circulation control valve 14 to enter the gas return liquid port 13. Because the small circulation control valve 14 and the connecting pipeline of the three-way connecting pipe 8 are curved pipelines, liquid hydrogen can generate resistance when flowing, so that pressure difference is formed between the three-way connecting pipe 8 and the small circulation control valve 14, the liquid hydrogen can flow to the liquid phase flowmeter 15 to cool the liquid phase flowmeter 15, and the measurement accuracy of the liquid phase flowmeter 15 can be improved.
The device adopts a pneumatic valve control mode with a unique small circulation function, realizes that double-gun liquid adding is not interfered with each other, and realizes reasonable filling logic and a control mode; the liquid adding machine is safer and more reliable; the device adopts the double-gun liquid adding machine with the single and small circulation function, and releases the space for installing one more pneumatic valves and pipelines, so that the whole vacuum box and the control PID pipeline are more concise in layout.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a double gun liquid feeding machine which characterized in that: including first filling pipeline, second filling pipeline, including inlet (1), first filling pipeline, second filling pipeline are connected through tee junction pipe (8) in inlet (1), the exit end of tee junction pipe (8) is connected with little circulation pipeline, be provided with little circulation control valve (14) on the little circulation pipeline, little circulation control valve (14) are through pipe connection to return gas liquid mouth (13).
2. The dual-gun liquid filler of claim 1, characterized in that: and the connecting pipeline of the small circulation control valve (14) and the three-way connecting pipe (8) is a curved pipeline.
3. The dual-gun liquid filler as claimed in claim 2, wherein: two outputs of tee junction pipe (8) are connected with first liquid outlet (5), second liquid outlet (12) respectively, first liquid outlet (5), second liquid outlet (12) all are connected with the liquid phase flowmeter, the output of two liquid phase flowmeters is connected with first liquid return mouth (4), second liquid return mouth (11) respectively.
4. The dual-gun liquid filler as claimed in claim 3, wherein: the output end of the first liquid return port (4) is connected with a liquid adding control valve, the output end of the second liquid return port (11) is connected with a liquid adding control valve, and the liquid adding control valve is a pneumatic valve (7).
5. The dual-gun liquid filler as claimed in claim 4, wherein: the output ends of the two liquid adding control valves are respectively connected with a first liquid adding opening (2) and a second liquid adding opening (9) through pipelines, the first liquid adding opening (2) and the second liquid adding opening (9) are both connected with a filling gun opening, and the filling gun opening is both connected with a filling gun.
6. The dual-gun liquid filler as claimed in claim 5, wherein: the first filling pipeline and the second filling pipeline respectively comprise air return channels and gun inserting pipelines, the gun inserting pipelines comprise gun inserting ports, the gun inserting ports are connected with one-way valves through pipelines, and the two one-way valves are respectively connected with a first air return port (3) and a second air return port (10) through pipelines; the first air return port (3) and the second air return port (10) are both connected with stop valves, and the stop valves are connected to the air return liquid ports (13) through pipelines.
7. The dual-gun liquid filler as claimed in claim 6, wherein: the return air passage comprises a return air gun port, the return air gun port is connected with a one-way valve through a pipeline, the output end of the one-way valve is connected with a gas phase flowmeter, and the output end of the gas phase flowmeter is connected to a first return air port (3) and a second return air port (10) through a pipeline.
8. The dual-gun liquid filler as claimed in claim 5, wherein: the pipeline system is provided with a plurality of needle valves, and the needle valves are connected with safety valves, and the safety valves are connected to the dispersion openings through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669012.7U CN214663680U (en) | 2020-11-18 | 2020-11-18 | Double-gun liquid adding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669012.7U CN214663680U (en) | 2020-11-18 | 2020-11-18 | Double-gun liquid adding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214663680U true CN214663680U (en) | 2021-11-09 |
Family
ID=78469318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022669012.7U Active CN214663680U (en) | 2020-11-18 | 2020-11-18 | Double-gun liquid adding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214663680U (en) |
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2020
- 2020-11-18 CN CN202022669012.7U patent/CN214663680U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240429 Address after: No. 4, workshop 1, floor 1, unit 1, building 1, No. 1888, Checheng West Third Road, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan 610000 Patentee after: Youjiete clean energy Co.,Ltd. Country or region after: China Address before: Room 101, building 10, No.117, Nansan Road, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan 610000 Patentee before: Chengdu dexinda Energy Technology Center (limited partnership) Country or region before: China |