CN108071936A - A kind of tank body pressure-retaining system and its pressurize method - Google Patents
A kind of tank body pressure-retaining system and its pressurize method Download PDFInfo
- Publication number
- CN108071936A CN108071936A CN201711145969.8A CN201711145969A CN108071936A CN 108071936 A CN108071936 A CN 108071936A CN 201711145969 A CN201711145969 A CN 201711145969A CN 108071936 A CN108071936 A CN 108071936A
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- China
- Prior art keywords
- pressure
- tank body
- tank
- connecting tube
- valve
- 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
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- 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
- 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
-
- 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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- 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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/021—Avoiding over pressurising
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of tank body pressure-retaining system and its methods, wherein, the system comprises the stable-pressure devices and superpressure pressurizer being connected with tank body, the stable-pressure device is controlled with the superpressure pressurizer by control device, when needing to carry out voltage stabilizing, control tank body is connected with stable-pressure device, when pressure reaches predetermined pressure value in tank body, tank body is needed to maintain certain pressure intensity, when avoiding pressure excessive, control tank body is connected with superpressure pressurizer, passes through scheme of the present invention, pressurize can be carried out to LNG tank body, ensure that the in vivo pressure of tank is stablized.
Description
Technical field
The present invention relates to LNG fields more particularly to a kind of tank body pressure-retaining system and its pressurize methods.
Background technology
In the prior art, in concreting process, tank body can be subject to larger pressure, to prevent vault concreting
Vault construction is subject to local pressure excessive and generates larger local deformation or damage in the process, therefore in concreting process
Need to keep certain air pressure in tank to resist and balance the local pressure that this is present at any time, and the dwell time is not low
Required institute's having time is completed and solidifies in vault concreting.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned deficiencies of the prior art, it is an object of the invention to provide a kind of tank body pressure-retaining system and its pressurize sides
Method, it is intended to solve the problems, such as LNG tank body pressurize.
Technical scheme is as follows：
A kind of tank body pressure-retaining system, wherein, it is described steady including the stable-pressure device being connected with tank body and superpressure pressurizer
Pressure device is controlled with the superpressure pressurizer by control device, when needing to carry out pressurize, control tank body and superpressure pressurize
Device connects, and after pressurize, control tank body is connected with stable-pressure device.
The tank body pressure-retaining system, wherein, the control device is valve.
The tank body pressure-retaining system, wherein, the tank body connects with stable-pressure device and superpressure pressurizer by first
Take over connection.
The tank body pressure-retaining system, wherein, the stable-pressure device includes the second connecting tube and the first valve, control the
One valve opening, the tank body are connected by the first connecting tube and the second connecting tube with pneumatics device, pass through the pneumatics device pair
Tank body output gas carries out voltage stabilizing.
The tank body pressure-retaining system, wherein, the superpressure pressurizer includes the 3rd connecting tube and the second valve, opens
The second valve is opened, the tank body is connected with superpressure pressurizer by the first connecting tube and the 3rd connecting tube, and the described 3rd connects
It takes over end to be connected with pressure maintaining tank, by controlling the pressure in pressure maintaining tank, makes to be protected with pressure maintaining tank internal pressure strongly consistent in tank body
Pressure.
The tank body pressure-retaining system, wherein, the pressure maintaining tank is liquid tank, controls the 3rd connecting tube and phase in liquid tank
Pressure is adjusted to position.
The tank body pressure-retaining system, wherein, first valve and the second valve are manual pressure release valve.
The tank body pressure-retaining system, wherein, pressure gage is equipped in the tank body, is measured by the pressure gage in tank body
Pressure.
The tank body pressure-retaining system, wherein, first connecting tube, the second connecting tube and the 3rd connecting tube are anti-
Rotten material is made.
A kind of tank body pressurize method, wherein, including step：
A, the first valve is opened, by pneumatics device to inputting gas in tank body, carries out voltage stabilizing；
B, pressurize pressure is obtained, adjusts the 3rd connecting tube and the relative position of pressure maintaining tank；
C, the second valve is opened, tank body is made to be connected with pressure maintaining tank, carries out pressurize.
Advantageous effect：The invention discloses a kind of tank body pressure-retaining system and its method, wherein, the system comprises with tank body
The stable-pressure device of connection and superpressure pressurizer, the stable-pressure device pass through control device control with the superpressure pressurizer
System, when needing to carry out voltage stabilizing, control tank body is connected with stable-pressure device, when pressure reaches predetermined pressure value, it is necessary to tank in tank body
Body maintains certain pressure intensity, and when avoiding pressure excessive, control tank body is connected with superpressure pressurizer, by scheme of the present invention,
Pressurize can be carried out to LNG tank body, ensure that the in vivo pressure of tank is stablized.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the structure diagram of tank body pressure-retaining system of the present invention.
Fig. 2 is the step flow chart of tank body pressurize method of the present invention.
Specific embodiment
The present invention provides a kind of tank body pressure-retaining system and its pressurize method, to make the purpose of the present invention, technical solution and effect
Fruit is clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, it is the structure diagram of the tank body pressure-retaining system, the invention discloses a kind of tank body positive systems
It unites, it is tank body that left side, which is not drawn into part, in figure, wherein, it is filled including the stable-pressure device 101 being connected with tank body and superpressure pressurize
Put 102, the stable-pressure device 101 is controlled with the superpressure pressurizer 102 by control device 103, when need carry out pressurize
When, control tank body is connected with superpressure pressurizer 102, and after pressurize, control tank body is connected with stable-pressure device 101.
The invention discloses a kind of tank body pressure-retaining systems, can carry out pressurize to LNG tank body, avoid pressure mistake in tank body
Greatly, specifically, including stable-pressure device and superpressure pressurizer, when the in vivo pressure of tank is excessive, it is necessary to be protected to tank body
Therefore pressure, controls tank body to be connected with superpressure pressurizer, pressurize is carried out to tank body by control device, and after the completion of pressurize,
It needs to carry out voltage stabilizing to tank body, i.e., is communicated with air, therefore, control device control tank body is connected with stable-pressure device, is completed and big
The purpose that gas phase is led to realize voltage stabilizing, by system of the present invention, can carry out voltage stabilizing holding pressure control to tank body, ensure that
Security.
Further, the tank body pressure-retaining system, wherein, the control device is valve.
Tank body pressure-retaining system of the present invention, preferably described control device are valve, by being turned on and off for valve, are come
Realize the connection or closing of tank body and stable-pressure device or superpressure pressurizer.
Further, the tank body pressure-retaining system, wherein, the tank body is filled with stable-pressure device 101 and superpressure pressurize
102 are put to connect by the first connecting tube 104.
Tank body pressure-retaining system of the present invention, the tank body needs are connected with stable-pressure device or superpressure pressurizer, this hair
Bright to be preferably connected by the first connecting tube with stable-pressure device or superpressure pressurizer, valve opening then connects, and valve is closed then not
Connection, to be controlled.
Further, the tank body pressure-retaining system, wherein, the stable-pressure device 101 include the second connecting tube 105 and
First valve 106, the first valve 106 of control are opened, the tank body by the first connecting tube 104 and the second connecting tube 105 with
Pneumatics device connects, and by the pneumatics device to tank body output gas, carries out voltage stabilizing.
Tank body pressure-retaining system of the present invention, specifically, since tank body is metal can, the vault of tank body pours coagulation
Soil avoids pressure is excessive from causing tank body arch deformation etc., it is necessary to carry out certain restriction to pressure in filling, therefore, institute of the present invention
State system, the stable-pressure device since the in vivo pressure of tank being kept to stablize, specifically, stable-pressure device include the second connecting tube and
First valve, after the first valve opening, tank body is communicated with pneumatics device, by pneumatics device to conveying gas in tank body, ensures tank body
The stabilization of interior pressure, avoids too little pressure, causes tank body compressive deformation, the in vivo pressure of stable can.
Further, the tank body pressure-retaining system, wherein, the superpressure pressurizer 102 includes the 3rd connecting tube 107
And second valve 108, open the second valve 108, the tank body and superpressure pressurizer 102 by the first connecting tube 104 with
And the 3rd connecting tube 107 connect, 107 end of the 3rd connecting tube is connected with pressure maintaining tank 109, by controlling in pressure maintaining tank 109
Pressure, make to carry out pressurize with 109 internal pressure strongly consistent of pressure maintaining tank in tank body.
Tank body pressure-retaining system of the present invention, the superpressure pressurizer are used to carry out pressurize to tank body, specifically, including
3rd connecting tube and the second valve, the unlatching of the second valve, tank body are connected with superpressure pressurizer, in order to realize that pressurize is imitated
Fruit, the 3rd connecting tube are connected with pressure maintaining tank, and the pressure in pressure maintaining tank is needs stable pressure, when pressure is excessive in tank body, then
Can pressure be discharged by pressure maintaining tank, carry out the in vivo pressure of temperature tank, with tank body internal pressure strongly consistent, present pre-ferred embodiments, institute
State the in vivo pressure of tank cannot it is excessive can not be too small, when tank body too little pressure, can compressive deformation, when pressure is excessive, then
Meeting dilatancy, therefore, system of the present invention, preferably the first valve are constantly in opening, by pneumatics device to tank body
Pressurization, avoids tank body too little pressure, meanwhile, pressurize is carried out to tank body by superpressure pressurizer, avoids the in vivo pressure mistake of tank
Greatly, because the presence of superpressure pressurizer, even if pneumatics device continues air inlet, when tank body internal pressure it is powerful in the pressure of pressure maintaining tank when,
Also can the in vivo stability of tank be kept by pressure maintaining tank pressure release.
Further, the tank body pressure-retaining system, wherein, the pressure maintaining tank 109 is liquid tank, controls the 3rd connecting tube
107 adjust pressure with relative position in liquid tank.
Tank body pressure-retaining system of the present invention, preferably described pressure maintaining tank fill for liquid, the phase that the 3rd connecting tube is filled with liquid
Different to position, then the pressure in corresponding 3rd connecting tube exit is also different, when needing to control the in vivo pressure of tank, control
The pressure in the 3rd connecting tube exit, it is easy to operate, it, then can be real after fixing the 3rd connecting tube and filling relative position with liquid
Existing automatic pressure-maintaining, it is preferably water vat that liquid of the present invention, which fills,.
Further, the tank body pressure-retaining system, wherein, 106 and second valve 108 of the first valve is to let out manually
Pressure valve.
Tank body pressure-retaining system of the present invention, preferably described first valve and the second valve are manual pressure release valve, are led to
It crosses manually to control, it is generally the case that the first valve is to open, and carries out pressurization voltage stabilizing to tank body by pneumatics device, works as needs
During pressurize, then the second valve is opened, at this point, then need not artificially monitor, realize automatic pressure-maintaining.
Further, the tank body pressure-retaining system, wherein, pressure gage is equipped in the tank body, passes through the pressure gage
Measure the in vivo pressure of tank.
Tank body pressure-retaining system of the present invention, preferably described tank body is interior to be equipped with pressure gage, and it is in vivo to be tired of that change obtains tank
Pressure, to determine to need the pressure values of pressurize, to determine the relative position of the 3rd connecting tube.
Further, the tank body pressure-retaining system, wherein, first connecting tube 104, the second connecting tube 105 and
3rd connecting tube 107 is that anti-corrosion material is made.
Tank body pressure-retaining system of the present invention, in order to ensure the integral strength of system, preferably described first connecting tube, second
Connecting tube and the 3rd connecting tube are that anti-corrosion material is made.
Further, the invention also discloses a kind of tank body pressurize method, wherein, including step：
S1, the first valve is opened, by pneumatics device to inputting gas in tank body, carries out voltage stabilizing；
S2, pressurize pressure is obtained, adjusts the 3rd connecting tube and the relative position of pressure maintaining tank；
S3, the second valve is opened, tank body is made to be connected with pressure maintaining tank, carry out pressurize.
The specific implementation of the method for the invention has been described in systems, therefore does not repeat herein.
In conclusion the invention discloses a kind of tank body pressure-retaining system and its method, wherein, the system comprises with tank body
The stable-pressure device of connection and superpressure pressurizer, the stable-pressure device pass through control device control with the superpressure pressurizer
System, when needing to carry out voltage stabilizing, control tank body is connected with stable-pressure device, when pressure reaches predetermined pressure value, it is necessary to tank in tank body
Body maintains certain pressure intensity, and when avoiding pressure excessive, control tank body is connected with superpressure pressurizer, by scheme of the present invention,
Pressurize can be carried out to LNG tank body, ensure that the in vivo pressure of tank is stablized.
It should be appreciated that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
1. a kind of tank body pressure-retaining system, which is characterized in that including the stable-pressure device being connected with tank body and superpressure pressurizer, institute
It states stable-pressure device to control by control device with the superpressure pressurizer, when needing to carry out pressurize, controls tank body and superpressure
Pressurizer connects, and after pressurize, control tank body is connected with stable-pressure device.
2. tank body pressure-retaining system according to claim 1, which is characterized in that the control device is valve.
3. tank body pressure-retaining system according to claim 2, which is characterized in that the tank body is protected with stable-pressure device and superpressure
Pressure device is connected by the first connecting tube.
4. tank body pressure-retaining system according to claim 3, which is characterized in that the stable-pressure device include the second connecting tube with
And first valve, the first valve opening is controlled, the tank body is connected by the first connecting tube and the second connecting tube with pneumatics device,
By the pneumatics device to tank body output gas, voltage stabilizing is carried out.
5. tank body pressure-retaining system according to claim 4, which is characterized in that the superpressure pressurizer includes the 3rd connection
Pipe and the second valve, open the second valve, and the tank body is connected with superpressure pressurizer by the first connecting tube and the 3rd
Pipe connects, and the 3rd connection pipe end is connected with pressure maintaining tank, by controlling the pressure in pressure maintaining tank, makes tank body interior and pressure maintaining tank
Internal pressure strongly consistent carries out pressurize.
6. tank body pressure-retaining system according to claim 5, which is characterized in that the pressure maintaining tank is liquid tank, controls the 3rd
Connecting tube adjusts pressure with relative position in liquid tank.
7. tank body pressure-retaining system according to claim 5, which is characterized in that first valve and the second valve are manual
Pressure relief valve.
8. tank body pressure-retaining system according to claim 6, which is characterized in that pressure gage is equipped in the tank body, passes through institute
State the pressure gage measurement in vivo pressure of tank.
9. tank body pressure-retaining system according to claim 4, which is characterized in that first connecting tube, the second connecting tube with
And the 3rd connecting tube be that anti-corrosion material is made.
A kind of 10. tank body pressurize method, which is characterized in that including step：
A, the first valve is opened, by pneumatics device to inputting gas in tank body, carries out voltage stabilizing；
B, pressurize pressure is obtained, adjusts the 3rd connecting tube and the relative position of pressure maintaining tank；
C, the second valve is opened, tank body is made to be connected with pressure maintaining tank, carries out pressurize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145969.8A CN108071936A (en) | 2017-11-17 | 2017-11-17 | A kind of tank body pressure-retaining system and its pressurize method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145969.8A CN108071936A (en) | 2017-11-17 | 2017-11-17 | A kind of tank body pressure-retaining system and its pressurize method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071936A true CN108071936A (en) | 2018-05-25 |
Family
ID=62157249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711145969.8A Pending CN108071936A (en) | 2017-11-17 | 2017-11-17 | A kind of tank body pressure-retaining system and its pressurize method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170226A (en) * | 2019-06-07 | 2019-08-27 | 江苏航天惠利特环保科技有限公司 | A kind of petroleum vapor recovery heat exchange defrosting device and its application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857044U (en) * | 2010-07-20 | 2011-06-08 | 中芯国际集成电路制造(上海)有限公司 | Liquid storage device |
| KR20110087464A (en) * | 2010-01-26 | 2011-08-03 | 대우조선해양 주식회사 | Apparatus and method for treating boil-off gas |
| DE102011121467B4 (en) * | 2010-12-22 | 2014-02-06 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | PRESSURE RESERVOIR VALVE AND METHOD FOR SUPPLYING FUEL TO A GAS CONSUMPTION SYSTEM |
| CN205806909U (en) * | 2016-06-02 | 2016-12-14 | 博格思众（常州）热交换器有限公司 | A kind of inflation pressure keeping craft equipment |
| CN206072751U (en) * | 2016-06-27 | 2017-04-05 | 陕西陕煤黄陵矿业有限公司 | A kind of space division system for increasing liquid nitrogen vaporization system |
-
2017
- 2017-11-17 CN CN201711145969.8A patent/CN108071936A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110087464A (en) * | 2010-01-26 | 2011-08-03 | 대우조선해양 주식회사 | Apparatus and method for treating boil-off gas |
| CN201857044U (en) * | 2010-07-20 | 2011-06-08 | 中芯国际集成电路制造(上海)有限公司 | Liquid storage device |
| DE102011121467B4 (en) * | 2010-12-22 | 2014-02-06 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | PRESSURE RESERVOIR VALVE AND METHOD FOR SUPPLYING FUEL TO A GAS CONSUMPTION SYSTEM |
| CN205806909U (en) * | 2016-06-02 | 2016-12-14 | 博格思众（常州）热交换器有限公司 | A kind of inflation pressure keeping craft equipment |
| CN206072751U (en) * | 2016-06-27 | 2017-04-05 | 陕西陕煤黄陵矿业有限公司 | A kind of space division system for increasing liquid nitrogen vaporization system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170226A (en) * | 2019-06-07 | 2019-08-27 | 江苏航天惠利特环保科技有限公司 | A kind of petroleum vapor recovery heat exchange defrosting device and its application method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180525 |