CN108547776A - A kind of double pump cavitation-preventive loading system - Google Patents
A kind of double pump cavitation-preventive loading system Download PDFInfo
- Publication number
- CN108547776A CN108547776A CN201810350634.8A CN201810350634A CN108547776A CN 108547776 A CN108547776 A CN 108547776A CN 201810350634 A CN201810350634 A CN 201810350634A CN 108547776 A CN108547776 A CN 108547776A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- preventive
- booster
- transmitter
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/16—Pumping installations or systems with storage reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
This application discloses a kind of double pump cavitation-preventive loading system, including LNG storage tank, LNG storage tank connects booster by first pipe, and booster connects LNG storage tank by second pipe；LNG storage tank is by going out liquid supervisor the first immersed pump of connection and the second immersed pump, first pressure transmitter and the first temperature transmitter are connected on third pipeline, second pressure transmitter and second temperature transmitter are connected on the 5th pipeline, first pressure transmitter, the first temperature transmitter, second pressure transmitter, second temperature transmitter connect controller by signal wire respectively, and controller controls booster, automatic valve on the 7th pipeline, automatic valve on the 9th pipeline.The advantages of the application：The application automatically controls booster to adjust the pressure of storage tank according to the pressure and temperature functional relation of LNG gasification, remains that the LNG gasification at immersed pump inlet before critical point, effectively prevent LNG to gasify in immersed pump.
Description
Technical field
This application involves LNG technical field of transportation, more particularly to a kind of double pump cavitation-preventive loading system.
Background technology
The auto industry of fast development, the mankind's be faced with energy shortage at present, environmental degradation disaster in, play and push away
Wave helps the effect of billows.The master of each big-and-middle urban air pollution in China is had become using vapour, diesel oil as the tail gas pollution of motor-driven vehicle of power
Pollution sources are wanted, the living environment of the city people is seriously threatened.Use natural gas or coal bed gas (CH4) replacing gasoline and diesel oil as
Fuel provides power for motor vehicles, and the discharge capacity of exhaust pollutant can be greatly lowered, and is to solve urban atmospheric pollution
Effective measures.Development LNG fuel automobiles have been the parts of national " 863 Program ".It is the master that auto industry realizes energy revolution
Want developing direction.
LNG filling stations are very high as gas consuming device demand.But since LNG easily gasifies feature, immersed pump can be caused to cavitate
Probability is very high, influences to fill efficiency.
Invention content
The purpose of the application is and a kind of double pump cavitation-preventive filling proposed in order to solve disadvantage existing in the prior art
System.
To achieve the goals above, the application uses following technical solution：
A kind of double pump cavitation-preventive loading system, it is characterised in that：Including LNG storage tank, the first liquid-phase outlet of LNG storage tank is logical
Cross first pipe connection booster into liquid interface, the outlet interface of booster passes through the gas phase that second pipe connects LNG storage tank
Entrance；
The second liquid phase outlet of LNG storage tank is passed through by going out liquid supervisor's connection triple valve, one of triple valve interface
Third pipeline connect the first immersed pump into liquid interface, first pressure transmitter and the first temperature pick-up are connected on third pipeline
The liquid interface that goes out of device, the first immersed pump connects the first charging machine by the 4th pipeline, and another interface of triple valve passes through the
Five pipelines connect the second immersed pump into liquid interface, second pressure transmitter and second temperature pick-up are connected on the 5th pipeline
The liquid interface that goes out of device, the second immersed pump connects the second charging machine by the 6th pipeline；
The gas phase interface of the first auxiliary tank is also connected by the 7th pipeline on the second pipe, the first auxiliary tank goes out
Liquid interface is connected by the 8th pipeline with the third pipeline；
The gas phase interface of the second auxiliary tank is also connected by the 9th pipeline on the second pipe, the second auxiliary tank goes out
Liquid interface is connected by the tenth pipeline with the 5th pipeline；
The first pressure transmitter, the first temperature transmitter, second pressure transmitter, second temperature transmitter lead to respectively
It crosses corresponding signal wire and is connected to the indoor controller of control, controller controls the start and stop of booster, automatic valve on the 7th pipeline
Keying, on the 9th pipeline automatic valve keying.
Preferably, the booster is LNG from booster pump.
Preferably, the first pipe, second pipe, third pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th
Pipeline, the 9th pipeline, is respectively arranged with cryogenic ball valve on the tenth pipeline at the 8th pipeline.
Preferably, unidirectional by being equipped with first on first auxiliary tank one end to the direction of third pipeline on the 8th pipeline
Valve.
Preferably, unidirectional by being equipped with second on second auxiliary tank one end to the direction of the 5th pipeline on the tenth pipeline
Valve.
Preferably, the first pressure transmitter and first temperature transmitter are close to the setting of the first immersed pump.
Preferably, the second pressure transmitter and the second temperature transmitter are close to the setting of the second immersed pump.
The advantages of the application, is：The application optimizes existing LNG filling stations system flow, and technical flow design is closed
Reason, ensure that the reliability of system operation, reduces maintenance rate, improve work efficiency, and be become by pressure transmitter and temperature
Device is sent to be monitored pressure, the temperature at immersed pump inlet, according to the pressure and temperature functional relation of LNG gasification, automatically
Control booster adjusts the pressure of storage tank, and by auxiliary tank at immersed pump inlet pressure and temperature be adjusted,
Remain that the LNG gasification at immersed pump inlet before critical point, effectively prevent LNG to gasify in immersed pump.
Description of the drawings
Fig. 1 is a kind of process flow chart of double pump cavitation-preventive loading system provided herein.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
As shown in Figure 1, a kind of double pump cavitation-preventive loading system provided by the present application, it is characterised in that：Including LNG storage tank 1,
For first liquid-phase outlet of LNG storage tank 1 by the connection booster 2 of first pipe 11 into liquid interface, the outlet interface of booster 2 is logical
Cross the gas phase entrance that second pipe 12 connects LNG storage tank 1.Booster 2 is LNG from booster pump, is the prior art.
The second liquid phase outlet of LNG storage tank 1 is not drawn into the accompanying drawings by going out 1.1 connection triple valve of liquid supervisor, triple valve.
One of triple valve interface, into liquid interface, is connected by the first immersed pump 3 of connection of third pipeline 13 on third pipeline 13
First pressure transmitter 5 and the first temperature transmitter 6 are connect, first pressure transmitter 5 and first temperature transmitter 6 are close to
First immersed pump 3 is arranged.The liquid interface that goes out of first immersed pump 3 connects the first charging machine, the first charging machine by the 4th pipeline 14
It is not drawn into the accompanying drawings.
Another interface of triple valve, into liquid interface, is managed by the 5th pipeline 15 the second immersed pump 4 of connection the 5th
Second pressure transmitter 7 and second temperature transmitter 8, second pressure transmitter 7 and the second temperature pick-up are connected on road 15
Device 8 is close to the setting of the second immersed pump 4.The liquid interface that goes out of second immersed pump 4 connects the second charging machine by the 6th pipeline 16.
The gas phase interface of the first auxiliary tank 9, the first auxiliary are also connected by the 7th pipeline 17 on the second pipe 12
The liquid interface that goes out of tank 9 is connected by the 8th pipeline 18 with the third pipeline 13, by the first auxiliary tank 9 one on the 8th pipeline 18
End to the direction of third pipeline 13 is equipped with the first check valve.
The gas phase interface of the second auxiliary tank 10, the second auxiliary are also connected by the 9th pipeline 19 on the second pipe 12
The liquid interface that goes out of tank 10 is connected by the tenth pipeline 20 with the 5th pipeline 15, by the second auxiliary tank 10 on the tenth pipeline 20
One end to the direction of the 5th pipeline 15 is equipped with the second check valve.
The first pressure transmitter 5, the first temperature transmitter 6, second pressure transmitter 7, second temperature transmitter 8 divide
The indoor controller of control is not connected to by corresponding signal wire, controller uses the prior art, controller to control booster 2
Start and stop, the keying of automatic valve on the 7th pipeline 17, on the 9th pipeline 19 automatic valve keying.
First pipe 11, second pipe 12, third pipeline 13, the 4th pipeline 14, the 5th pipeline 15, the 6th pipeline 16,
Seven pipelines 17, the 9th pipeline 19, are respectively arranged with cryogenic ball valve on the tenth pipeline 20 at the 8th pipeline 18.
The operation principle of this system is as follows：
The pressure and temperature at 3 inlet of the first immersed pump are monitored by first pressure transmitter 5 and the first temperature transmitter 6
Degree, and monitoring result is transmitted to the indoor controller of control, controller according to the pressure and temperature functional relation of LNG gasification into
Row calculates, and close to when the critical point gasified, controller controls booster 2 and opens the LNG at 3 inlet of the first immersed pump, leads to
The pressure in the adjustment LNG storage tank 1 of booster 2 is crossed, while controller controls automatic valve on the 7th pipeline 17 and opens, and assists first
It is pressurized in tank 9, the LNG in the first auxiliary tank 9 is filled into third pipeline 13, prevents the LNG at 3 inlet of the first immersed pump
Gasify.
When first pressure transmitter 5 and the first temperature transmitter 6 monitor pressure and temperature at 3 inlet of the first immersed pump
When spending back to normal, booster 2 is closed in controller control, and is controlled automatic valve on the 7th pipeline 17 simultaneously and closed.
LNG pressure and temperature monitoring, adjustment at second immersed pump, 4 inlet is identical as the mode at the first immersed pump 3,
It no longer repeats herein.
Claims (7)
1. a kind of double pump cavitation-preventive loading system, it is characterised in that：Including LNG storage tank (1), the first liquid phase of LNG storage tank (1) goes out
For mouth by first pipe (11) connection booster (2) into liquid interface, the outlet interface of booster (2) passes through second pipe (12)
Connect the gas phase entrance of LNG storage tank (1)；
The second liquid phase outlet of LNG storage tank (1) connects triple valve, one of triple valve interface by going out liquid supervisor (1.1)
By third pipeline (13) the first immersed pump of connection (3) into liquid interface, first pressure pick-up is connected on third pipeline (13)
The liquid interface that goes out of device (5) and the first temperature transmitter (6), the first immersed pump (3) passes through the first filling of the 4th pipeline (14) connection
Machine, another interface of triple valve by the 5th pipeline (15) connect the second immersed pump (4) into liquid interface, in the 5th pipeline
(15) second pressure transmitter (7) and second temperature transmitter (8) is connected on, the second immersed pump (4) goes out liquid interface by the
Six pipelines (16) connect the second charging machine；
The gas phase interface of the first auxiliary tank (9) is also connected by the 7th pipeline (17) on the second pipe (12), first is auxiliary
The liquid interface that goes out of tank (9) is helped to be connected with the third pipeline (13) by the 8th pipeline (18)；
The gas phase interface of the second auxiliary tank (10) is also connected by the 9th pipeline (19) on the second pipe (12), second is auxiliary
The liquid interface that goes out of tank (10) is helped to be connected with the 5th pipeline (15) by the tenth pipeline (20)；
The first pressure transmitter (5), the first temperature transmitter (6), second pressure transmitter (7), second temperature transmitter
(8) the indoor controller of control is connected to by corresponding signal wire respectively, controller controls the start and stop of booster (2), the 7th
The keying of automatic valve on pipeline (17), on the 9th pipeline (19) automatic valve keying.
2. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：The booster (2) is LNG
From booster pump.
3. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：The first pipe (11),
Second pipe (12), third pipeline (13), the 4th pipeline (14), the 5th pipeline (15), the 6th pipeline (16), the 7th pipeline
(17), the 8th pipeline (18), the 9th pipeline (19), be respectively arranged with cryogenic ball valve on the tenth pipeline (20).
4. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：In the 8th pipeline (18)
On by the first auxiliary tank (9) one end to the direction of third pipeline (13) be equipped with the first check valve.
5. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：In the tenth pipeline (20)
On by the second auxiliary tank (10) one end to the direction of the 5th pipeline (15) be equipped with the second check valve.
6. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：The first pressure transmitter
(5) and first temperature transmitter (6) is close to the first immersed pump (3) setting.
7. a kind of double pump cavitation-preventive loading system according to claim 1, it is characterised in that：The second pressure transmitter
(7) and the second temperature transmitter (8) is close to the second immersed pump (4) setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350634.8A CN108547776A (en) | 2018-04-18 | 2018-04-18 | A kind of double pump cavitation-preventive loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350634.8A CN108547776A (en) | 2018-04-18 | 2018-04-18 | A kind of double pump cavitation-preventive loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547776A true CN108547776A (en) | 2018-09-18 |
Family
ID=63515373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810350634.8A Pending CN108547776A (en) | 2018-04-18 | 2018-04-18 | A kind of double pump cavitation-preventive loading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547776A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080127654A1 (en) * | 2006-07-20 | 2008-06-05 | Darling Charles M | Container for Transport and Storage for Compressed Natural Gas |
| US20140150422A1 (en) * | 2012-12-03 | 2014-06-05 | Caterpillar Inc. | Clean Fill Port System and Method |
| CN204176323U (en) * | 2014-09-30 | 2015-02-25 | 无锡特汇能源装备有限公司 | A kind of LNG low temperature list pump sled |
| CN204176324U (en) * | 2014-09-30 | 2015-02-25 | 无锡特汇能源装备有限公司 | A kind of LNG low temperature double pump sled |
| CN105156883A (en) * | 2015-10-20 | 2015-12-16 | 沧州市天龙燃烧设备有限公司 | LNG gasification pressure regulating device and LNG gasification pressure regulating process |
| CN205191228U (en) * | 2015-09-25 | 2016-04-27 | 中海福建天然气有限责任公司 | Device for preventing LNG sample gasifies in advance |
| CN205842217U (en) * | 2016-05-30 | 2016-12-28 | 天津华迈燃气装备股份有限公司 | A kind of liquefied natural gas pressurizer of band immersed pump |
| CN106838615A (en) * | 2016-12-29 | 2017-06-13 | 天津佰焰科技股份有限公司 | A kind of device for preventing LNG samples from gasifying in advance |
-
2018
- 2018-04-18 CN CN201810350634.8A patent/CN108547776A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080127654A1 (en) * | 2006-07-20 | 2008-06-05 | Darling Charles M | Container for Transport and Storage for Compressed Natural Gas |
| US20140150422A1 (en) * | 2012-12-03 | 2014-06-05 | Caterpillar Inc. | Clean Fill Port System and Method |
| CN204176323U (en) * | 2014-09-30 | 2015-02-25 | 无锡特汇能源装备有限公司 | A kind of LNG low temperature list pump sled |
| CN204176324U (en) * | 2014-09-30 | 2015-02-25 | 无锡特汇能源装备有限公司 | A kind of LNG low temperature double pump sled |
| CN205191228U (en) * | 2015-09-25 | 2016-04-27 | 中海福建天然气有限责任公司 | Device for preventing LNG sample gasifies in advance |
| CN105156883A (en) * | 2015-10-20 | 2015-12-16 | 沧州市天龙燃烧设备有限公司 | LNG gasification pressure regulating device and LNG gasification pressure regulating process |
| CN205842217U (en) * | 2016-05-30 | 2016-12-28 | 天津华迈燃气装备股份有限公司 | A kind of liquefied natural gas pressurizer of band immersed pump |
| CN106838615A (en) * | 2016-12-29 | 2017-06-13 | 天津佰焰科技股份有限公司 | A kind of device for preventing LNG samples from gasifying in advance |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |