CN107816632B - Gas storage system and its application method - Google Patents
Gas storage system and its application method Download PDFInfo
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- CN107816632B CN107816632B CN201711046490.9A CN201711046490A CN107816632B CN 107816632 B CN107816632 B CN 107816632B CN 201711046490 A CN201711046490 A CN 201711046490A CN 107816632 B CN107816632 B CN 107816632B
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- liquid
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
本发明涉及气体存储技术领域，提供了一种储气系统及其使用方法。该系统包括储气单元、储液单元、压力检测单元和控制单元，储液单元通过供液管与储气单元连通，供液管上设有增压泵和供液阀，储气单元的上部与供气管连通，供气管上设有压力检测单元，增压泵、供液阀和压力检测单元均与控制单元电连接。本发明利用该方法，通过将储液单元内的液体工质不断抽入储气单元就可增大储气单元内剩余气体的压力，进而增大供气管内的供气压力，使得整个放气过程中，供气压力始终不小于预定供气压力，从而不仅显著提高了储气单元的容积利用率、保证了供气压力的稳定性，而且还节省了储气单元的储存空间。
The invention relates to the technical field of gas storage, and provides a gas storage system and a use method thereof. The system includes a gas storage unit, a liquid storage unit, a pressure detection unit and a control unit. The liquid storage unit communicates with the gas storage unit through a liquid supply pipe. A booster pump and a liquid supply valve are arranged on the liquid supply pipe. The upper part of the gas storage unit It communicates with the air supply pipe, and the air supply pipe is provided with a pressure detection unit, and the booster pump, the liquid supply valve and the pressure detection unit are all electrically connected with the control unit. The present invention uses this method to increase the pressure of the remaining gas in the gas storage unit by continuously pumping the liquid working medium in the liquid storage unit into the gas storage unit, thereby increasing the gas supply pressure in the gas supply pipe, so that the entire deflation During the process, the gas supply pressure is always not less than the predetermined gas supply pressure, which not only significantly improves the volume utilization rate of the gas storage unit, ensures the stability of the gas supply pressure, but also saves the storage space of the gas storage unit.
Description
Technical field
The present invention relates to gas technical field of memory, and in particular to a kind of gas storage system and its application method.
Background technique
High pressure gas is widely used in industrial production and daily life, especially in large scale industry production.High pressure gas
In application process, since supply air line is there are certain pressure loss, the gas pressure in caisson is had to be larger than
Supply gas pressure.And according to equation of gas state p*V=n*R*T it is found that when the volume size of pressure vessel is V, highest gas storage pressure
Power is ph, supply gas pressure p0When, in the case where not considering temperature T variation and the steam line resistance in deflation course, deflate
At the end of pressure in the pressure vessel be equal to supply gas pressure p0.Therefore, deflation terminates the object of gas in the pressure vessel of front and back
The ratio between amount of matter is equal to the ratio between pressure, i.e. nh: nl=ph: p0, the volumetric efficiency η of pressure vessel is equal to 1-nl/nh, i.e. η=1-
p0/ph, so that the gas pressure in caisson can constantly reduce, and then lead to caisson with the progress of deflation course
Capacity utilization gradually decreases.
Summary of the invention
The object of the present invention is to provide a kind of gas storage system and its application methods, are utilized with improving the volume of gas storage unit
Rate.
To achieve the above object, the present invention provides a kind of gas storage system, the system include gas storage unit, liquid storage unit,
Pressure sensing cell and control unit, the liquid storage unit is connected to by liquid supply pipe with the gas storage unit, on the liquid supply pipe
Equipped with booster pump and supplying valve, the top of the gas storage unit is connected to air supply pipe, and the air supply pipe is examined equipped with the pressure
Unit is surveyed, the booster pump, the supplying valve and the pressure sensing cell are electrically connected with the control unit.
Wherein, the gas storage unit is horizontal pressure vessel or vertical pressure vessel.
Wherein, the air supply pipe is connected to the top of the vertical pressure vessel, the liquid supply pipe and the vertical pressure
The bottom of container is connected to.
Wherein, the air supply pipe is connected to the side of the horizontal pressure vessel, the liquid supply pipe and the Horizontal pressure
The bottom of container is connected to.
It wherein, further include the liquid barrier being arranged in the horizontal pressure vessel, the first end of the liquid barrier is located at institute
State the lower section of air supply pipe, second end extends towards the top surface of the horizontal pressure vessel, the second end of the liquid barrier and described sleeping
There is gas passage between the top surface of formula pressure vessel.
Wherein, the cross sectional shape of the liquid barrier is L-type.
Wherein, the second end of the liquid barrier be equipped with the second liquid level detection unit, second liquid level detection unit with
Described control unit electrical connection.
It wherein, further include return pipe and the first liquid level detection unit, the outlet of the return pipe and the liquid storage unit connect
Logical, import is connected to the bottom of the gas storage unit, and the return pipe is equipped with return valve, and the bottom of the gas storage unit plugs
There is first liquid level detection unit, the return valve and first liquid level detection unit are electrically connected with described control unit
It connects.
To achieve the above object, the present invention also provides a kind of application method of gas storage system described above, this method
When deflation, comprising the following steps:
Supply gas pressure in S1.1, acquisition air supply pipe, and jump and execute step S1.2；
S1.2, the supply gas pressure is judged whether less than the first setting pressure, if so then execute step S1.3, if otherwise holding
Row step S1.4；
S1.3, supplying valve is opened, starts booster pump, and jumped and execute step S1.1；
S1.4, judge whether the supply gas pressure is greater than the second setting pressure, if so then execute step S1.5, if otherwise holding
Row step S1.3；Wherein, the first setting pressure is less than the second setting pressure；
S1.5, supplying valve and booster pump are closed, and jumps and executes step S1.1；
When inflation, comprising the following steps:
Liquid level height value in S2.1, acquisition gas storage unit, and jump and execute step S2.2；
S2.2, judge whether the liquid level height value is greater than the first setting liquid level, if so then execute step S2.3, if
It is no to then follow the steps S2.4；
S2.3, return valve is opened, and jumps and executes step S2.1；
S2.4, closing volume valve.
Wherein, after executing the step S1.2, and also execution is following before jumping the execution step S1.4
Step:
Liquid level height value in S1.1 ', acquisition gas storage unit, and jump and execute step S1.2 '；
S1.2 ', judge whether the liquid level height value is greater than the second setting liquid level, if so then execute step S1.3 ',
S1.4 is thened follow the steps if not；
S1.3 ', supplying valve and booster pump are closed, and jumps and executes step S1.1 '.
The liquid storage unit that the present invention is connected to by setting with gas storage unit, sets the supply gas pressure in air supply pipe less than first
When constant-pressure, residual gas in gas storage unit can be increased by the way that the liquid working substance in liquid storage unit to be constantly pumped into gas storage unit
Pressure, and then increase the supply gas pressure in air supply pipe, so that supply gas pressure is consistently greater than the first setting in entire deflation course
Pressure, that is to say, that supply gas pressure is not less than predetermined supply gas pressure always, to not only significantly improve the volume of gas storage unit
Utilization rate, the stability that ensure that supply gas pressure, and also save the storage space of gas storage unit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of the embodiment of the present invention 1 gas storage system；
Fig. 2 is the structural schematic diagram of one of the embodiment of the present invention 2 gas storage system；
Fig. 3 is the flow chart of the application method of gas storage system when one of embodiment of the present invention 3 is deflated；
The flow chart of the application method of gas storage system when Fig. 4 is the inflation of one of embodiment of the present invention 3.
Appended drawing reference:
1, gas storage unit；2, liquid storage unit；3, liquid supply pipe；4, booster pump；
5, supplying valve；6, air supply pipe；7, return pipe；8, return valve；9, liquid barrier；
10, connecting tube.
Specific embodiment
To keep the purposes, technical schemes and advantages of invention clearer, below in conjunction with the attached drawing in invention, in invention
Technical solution be explicitly described, it is clear that described embodiment is invention a part of the embodiment, rather than whole realities
Apply example.It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiment in invention
Every other embodiment belongs to the range of invention protection.
In the description of the present invention, unless otherwise indicated, the orientation or position of the instructions such as term " on ", "lower", "top", "bottom"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The system or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
It should be noted that unless otherwise clearly defined and limited, term " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected.For the ordinary skill in the art, tool of the above-mentioned term in invention can be understood with concrete condition
Body meaning.
Embodiment 1
As shown in Figure 1, the system includes gas storage unit 1, liquid storage unit 2, pressure the present invention provides a kind of gas storage system
Detection unit and control unit, liquid storage unit 2 are connected to by liquid supply pipe 3 with gas storage unit 1, and liquid supply pipe 3 is equipped with 4 He of booster pump
The top of supplying valve 5, gas storage unit 1 is connected to air supply pipe 6, and air supply pipe 6 is equipped with pressure sensing cell, booster pump 4, supplying valve
5 and pressure sensing cell be electrically connected with control unit.
Before use, enough liquid working substances need to be filled in liquid storage unit 2, wherein the liquid working substance can not preferably press
The liquid working substance of contracting, and the gas in gas storage unit 1 cannot be dissolved in the liquid working substance.For example, the gas in gas storage unit 1 is
When air, which can be used water.In addition, also need to set in a control unit according to actual needs the first setting pressure and
Second setting pressure, wherein the first setting pressure and the second setting pressure are all larger than predetermined supply gas pressure, and the first setting pressure
Less than the second setting pressure.
When deflation: the supply gas pressure in air supply pipe 6 can be detected by pressure sensing cell first, when supply gas pressure is less than the
When one setting pressure, supplying valve 5 is opened, and start booster pump 4 simultaneously, so that the liquid working substance in liquid storage unit 2 will be continuous
It is drawn into gas storage unit 1, the pressure of residual gas is just as liquid working substance is increasing in gas storage unit 1, in gas storage unit 1
Can constantly it increase, and then the supply gas pressure in air supply pipe 6 can also increase with it, when supply gas pressure is greater than the second setting pressure,
It can be turned off supplying valve 5 and booster pump 4.As a result, in entire deflation course, supply gas pressure is consistently greater than the first setting pressure,
That is supply gas pressure is not less than predetermined supply gas pressure always, so that the volume for not only significantly improving gas storage unit 1 utilizes
Rate, the stability that ensure that supply gas pressure, and also save the storage space of gas storage unit 1.In addition, due to booster pump 4
Efficiency is higher than the efficiency of gas compressor, therefore is greatly improved efficiency, energy saving by using booster pump 4.
Preferably, gas storage unit 1 is horizontal pressure vessel, and air supply pipe 6 is connected to the side of horizontal pressure vessel, liquid supply pipe
3 are connected to the bottom of horizontal pressure vessel.Enter gas supply with air-flow the advantages of this arrangement are as follows not only can avoid liquid working substance
Pipe 6, but also the power consumption of booster pump 4 can be reduced, it is energy saving.
Further, which further includes the liquid barrier 9 being arranged in horizontal pressure vessel, the first end position of liquid barrier 9
Extend in the lower section of air supply pipe 6, second end towards the top surface of horizontal pressure vessel, the second end and horizontal pressure vessel of liquid barrier 9
Top surface between there is gas passage, that is to say, that the edge of the edge of the first end of liquid barrier 9 and two sides is and Horizontal pressure
The inner wall of container connects, and has certain distance between the edge of the second end of liquid barrier 9 and the top surface of horizontal pressure vessel, that is, keeps off
The edge of the second end of liquid plate 9 and the top surface of horizontal pressure vessel, which are enclosed, to be set to form a gas passage.The benefit being arranged in this way exists
In, on the one hand, the space that can store liquid working substance in gas storage unit 1 can be increased, and then guarantee the liquid level and confession when liquid working substance
When the height of tracheae 6 is identical, the liquid working substance in liquid storage unit 2 can be still pumped into gas storage unit 1 by booster pump 4, to guarantee gas storage
The supply gas pressure of residual gas in unit 1；On the other hand, when gas flows into air supply pipe 6 by gas passage, it is mingled in air-flow
Liquid working substance and after liquid barrier 9 collides, can be flowed down along liquid barrier 9, and then liquid working substance can be further avoided with gas
Stream enters air supply pipe 6.
Further, the cross sectional shape of liquid barrier 9 is L-type.It should be noted that the shape of liquid barrier 9 can also be one end
Has plectane jaggy, plectane has top surface of the one end jaggy towards horizontal pressure vessel, and plectane is located at 6 lower section of air supply pipe
One end tilts upwards towards having one end jaggy.
Preferably, the second end of liquid barrier 9 is equipped with the second liquid level detection unit, and the second liquid level detection unit and control are single
Member electrical connection.When the liquid level of liquid working substance in liquid storage unit 2 is located at the second end of liquid barrier 9, i.e., when the liquid in liquid storage unit 2
When position height value is greater than the second setting liquid level, the liquid level height value that the second liquid level detection unit just will acquire is sent to control
Unit, and then control unit just can control supplying valve 5 and booster pump 4 to close, flow into air supply pipe 6 to avoid liquid working substance.
Preferably, which further includes return pipe 7 and the first liquid level detection unit, the outlet and liquid storage unit 2 of return pipe 7
Connection, import are connected to the bottom of gas storage unit 1, and return pipe 7 is equipped with return valve 8, and the bottom of gas storage unit 1 is inserted with first
Liquid level detection unit, return valve 8 and the first liquid level detection unit are electrically connected with control unit.When inflating as a result, reflux is opened
Valve 8, and booster pump 4 and supplying valve 5 is kept to close, when the liquid level of the liquid working substance in gas storage unit 1 drops to the inspection of the first liquid level
Survey unit where height when, i.e., when the liquid level in liquid storage unit 2 less than first setting liquid level when, gas storage unit 1
In liquid working substance drain substantially, the liquid level height value of acquisition is just sent to control unit by the first liquid level detection unit, in turn
Control unit just can control return valve 8 to close.
It is highly preferred that further include connecting tube 10, one end of connecting tube 10 respectively with the import of return pipe 7 and liquid supply pipe 3
Outlet, the other end are connected to the bottom of gas storage unit 1, to save pipeline and then save the cost.
It should be noted that in addition to can be by setting return pipe 7 come other than realizing draining, it can also be by by booster pump
4 are set as bidirectional booster pump to realize.
Embodiment 2
As shown in connection with fig. 2, the structure with principle of the gas storage system in the present embodiment are same as Example 1, and the present embodiment is not
It repeats again.The difference is that gas storage unit 1 is vertical pressure vessel, air supply pipe 6 is connected to the top of vertical pressure vessel,
Liquid supply pipe 3 is connected to the bottom of vertical pressure vessel.The advantages of this arrangement are as follows liquid working substance can be stored in gas storage unit 1
Space can be entire gas storage unit 1, that is to say, that the pressure for the gas that gas storage unit 1 is discharged is not less than default for air pressure
Power.
Embodiment 3
As shown in Figure 3 and Figure 4, the present invention also provides a kind of application method of above-mentioned gas storage system, this method is deflated
When, comprising the following steps:
Supply gas pressure in S1.1, acquisition air supply pipe 6, and jump and execute step S1.2；
S1.2, supply gas pressure is judged whether less than the first setting pressure, if so then execute step S1.3, if otherwise executing step
Rapid S1.4；
S1.3, supplying valve 5 is opened, starts booster pump 4, and jumped and execute step S1.1；
S1.4, judge whether supply gas pressure is greater than the second setting pressure, if so then execute step S1.5, if otherwise executing step
Rapid S1.3；Wherein, the first setting pressure is less than the second setting pressure；
S1.5, supplying valve 5 and booster pump 4 are closed, and jumps and executes step S1.1；
When inflation, comprising the following steps:
Liquid level height value in S2.1, acquisition gas storage unit 1, and jump and execute step S2.2；
S2.2, judge whether liquid level height value is greater than the first setting liquid level, if so then execute step S2.3, if otherwise
Execute step S2.4；
S2.3, return valve 8 is opened, and jumps and executes step S2.1；
S2.4, closing volume valve 8.
Preferably, after executing step S1.2, and following steps are also executed before jumping execution step S1.4:
Liquid level height value in S1.1 ', acquisition gas storage unit 1, and jump and execute step S1.2 '；
S1.2 ', judge whether liquid level height value is greater than the second setting liquid level, if so then execute step S1.3 ', if not
Then follow the steps S1.4；
S1.3 ', supplying valve 5 and booster pump 4 are closed, and jumps and executes step S1.1 '.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of invention, rather than its limitations；Although ginseng
Invention is described in detail according to previous embodiment, those skilled in the art should understand that: it still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
It modifies or replaces, the spirit and scope for each embodiment technical solution of invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
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| CN201711046490.9A CN107816632B (en) | 2017-10-31 | 2017-10-31 | Gas storage system and its application method |
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| CN107816632B true CN107816632B (en) | 2018-12-28 |
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| CN112944199A (en) * | 2019-12-10 | 2021-06-11 | 清华大学 | Underground constant-pressure gas storage device |
| CN111396466B (en) * | 2020-03-25 | 2021-11-30 | 福建龙马环卫装备股份有限公司 | Sanitation vehicle pneumatic clutch voltage stabilization control method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185200A (en) * | 2011-12-31 | 2013-07-03 | 安瑞科(廊坊)能源装备集成有限公司 | Gas conveying system and gas conveying method |
| CN206018256U (en) * | 2016-08-30 | 2017-03-15 | 济南同智创新能源科技股份有限公司 | A kind of interlocked control water sealed tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2905752Y (en) * | 2005-11-18 | 2007-05-30 | 安瑞科(廊坊)能源装备集成有限公司 | Hydraulic type natural gas-charging substation system for automobile |
| JP4816629B2 (en) * | 2007-11-30 | 2011-11-16 | 東京電力株式会社 | Liquefied high-pressure gas storage vaporizer and liquefied high-pressure gas storage vaporization method |
| JP5998946B2 (en) * | 2013-01-11 | 2016-09-28 | トヨタ自動車株式会社 | Gas supply system |
| CN205892737U (en) * | 2016-07-29 | 2017-01-18 | 湖南雅城新材料股份有限公司 | Steady voltage discharging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185200A (en) * | 2011-12-31 | 2013-07-03 | 安瑞科(廊坊)能源装备集成有限公司 | Gas conveying system and gas conveying method |
| CN206018256U (en) * | 2016-08-30 | 2017-03-15 | 济南同智创新能源科技股份有限公司 | A kind of interlocked control water sealed tank |
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Effective date of registration: 20210125 Address after: 213235 No.118 dadimiao village, Quanjiang village committee, Xuebu Town, Jintan District, Changzhou City, Jiangsu Province Patentee after: China Salt Huaneng Energy Storage Technology Co.,Ltd. Address before: 100084 mailbox, 100084-82 Tsinghua Yuan, Beijing, Haidian District, Beijing Patentee before: TSINGHUA University |