CN207316471U - LNG storage tank with shut-off valve pump sump - Google Patents
LNG storage tank with shut-off valve pump sump Download PDFInfo
- Publication number
- CN207316471U CN207316471U CN201721290632.1U CN201721290632U CN207316471U CN 207316471 U CN207316471 U CN 207316471U CN 201721290632 U CN201721290632 U CN 201721290632U CN 207316471 U CN207316471 U CN 207316471U
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- storage tank
- pump
- pump sump
- valve
- lng storage
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Abstract
The utility model discloses a kind of LNG storage tank with shut-off valve pump sump, it includes interior pump sump, the LNG storage tank for setting immersed pump, the pump sump is inserted into LNG storage tank, pump sump bottom is inserted in the interlayer of LNG storage tank bottom, the pump sump bottom connects shut-off valve by pipeline, and the shut-off valve includes valve body and spool, and the valve body is placed in the interlayer of LNG storage tank bottom, valve body liquid outlet is connected by pipeline with pump sump bottom, and valve body inlet is connected by pipeline with LNG storage tank inside；Spool is provided with the valve body, valve rod is connected with the spool, the valve rod is drawn at the top of LNG storage tank；Immersed pump is provided with the pump sump, liquid outlet is connected by stereoplasm tube with the pump sump lid liquid outlet at the top of pump sump at the top of the immersed pump；The stereoplasm tube is fixedly connected with pump sump lid.The pump sump can actively be turned off from exterior, avoid LNG from revealing；Carried out maintenance easy to immersed pump in pump sump；Ensure LNG storage tank storage safety;Also the valve connected between control LNG storage tank and pump sump can be carried out maintenance at any time at the same time.
Description
Technical field
LNG storage tank is the utility model is related to, refers in particular to a kind of LNG storage tank with shut-off valve pump sump.
Background technology
On go out the LNG storage tank of liquid（Including filling station peculiar to vessel or cargo ship）, the connecting portion of storage tank and outside pipeline compares liquid
Position is high.Outwards during conveying LNG, it is necessary to conveyed by the immersed pump for being arranged on LNG storage tank bottom.For the ease of immersed pump
Maintenance, the prior art will be pumped as in pump sump, and pump sump bottom is provided with bottom valve, and the base of immersed pump is placed on bottom valve, when
After immersed pump is installed on bottom valve, bottom valve is opened by the gravity of immersed pump, pump sump is connected with LNG storage tank.If will
Immersed pump takes out maintenance, and bottom valve just loses pump gravity, in the active force and storage tank of spring under the collective effect of static pressure, makes
Bottom valve is closed, and plays the role of isolating storage tank space with pump sump space.
Immersed pump is repaired although the design of the prior art is convenient, when bottom valve failure, lifts immersed pump and also can not
The connection of LNG storage tank and pump sump is closed, on-call maintenance can not be carried out to immersed pump, if being provided only with a pump in LNG storage tank, that
The LNG in LNG storage tank can only just be emptied, cause the waste of a large amount of LNG；Bottom valve can not also carry out maintenance replacement at any time；
When repairing bottom valve, maintenance personal needs to be deep into inside pump sump, not only inconvenient but also larger to the security presence of maintenance personal
Threat.
When pump sump export pipeline junction（Export root valve, flange failure etc.）When there are LNG leakages, bottom valve can only be turned off
Immersed pump in pump sump is isolated with the LNG in storage tank.But prior art opens pump sump lid, and immersed pump is lifted, is made
Bottom valve loses pump gravity, is just closed under the collective effect of static pressure in the active force and storage tank of spring.And pump sump outlet
The LNG pressure revealed at road is very high, can cause danger to maintenance personal, causes maintenance personal be able to not will dive close to pump sump lid is opened
Liquid pump lifts, and causes substantial amounts of LNG to reveal.
Utility model content
The purpose of this utility model is that：For above-mentioned problem, there is provided a kind of LNG storages with shut-off valve pump sump
Tank, the pump sump can actively be turned off from exterior, avoid LNG from revealing；Carried out maintenance easy to the immersed pump in pump sump；Ensure LNG storages
The storage safety of tank;Also the valve connected between control LNG storage tank and pump sump can be carried out maintenance at any time at the same time.
The technical solution adopted in the utility model is as follows：
The utility model discloses a kind of LNG storage tank with shut-off valve pump sump, it includes interior pump sump, the LNG for setting immersed pump
Storage tank, the pump sump are inserted into LNG storage tank, and pump sump bottom is inserted in the interlayer of LNG storage tank bottom, and the pump sump bottom is connected by pipeline
Shut-off valve is connect, the shut-off valve includes valve body and spool, and the valve body is placed in the interlayer of LNG storage tank bottom, and valve body liquid outlet leads to
Piping is connected with pump sump bottom, and valve body inlet is connected by pipeline with LNG storage tank inside；Valve is provided with the valve body
Core, valve rod is connected with the spool, and the valve rod is drawn at the top of LNG storage tank；Immersed pump is provided with the pump sump, it is described latent
Liquid outlet is connected by stereoplasm tube with the pump sump lid liquid outlet at the top of pump sump at the top of liquid pump；The stereoplasm tube is fixed with pump sump lid to be connected
Connect.
Due to said structure, pump sump bottom connects shut-off valve by pipeline, external equivalent to by bottom valve of the prior art,
Since valve rod is drawn outside LNG storage tank, pump sump bottom can be actively turned off by valve rod, makes pump sump inner space and LNG
Tank inside space isolates.When avoiding the pump sump export pipeline junction from LNG leakages occur, staff can not be close, can not beat
Turn on pump well lid lifts immersed pump, and the phenomenon that causing existing pump shaft bottom valve can not turn off occurs.
When repairing immersed pump, also pump sump can be actively turned off from outside, existed when avoiding turn on pump well lid, in pump sump high
Pressure, danger is brought to maintenance personal.
Simultaneously as the valve deck and valve rod of shut-off valve are from LNG storage tank Base top contact；When control pump sump is connected with LNG storage tank
Shut-off valve when needing repairing, cut-off valve core or seal can be replaced at the top of LNG, it is convenient without going deep into inside pump sump
Maintenance, ensure that the safety of maintenance personal.
Existing pump sump lifts immersed pump using steel wire rope, and pump sump, which covers, to be needed to set special hoisting mechanism, is hung
Mounting mechanism is generally pulley blocks hoisting mechanism.Since immersed pump makes to be lifted by steel wire rope, immersed pump is in hoisting process
The phenomenon that rotation occurs and swings, easily very pump sump wall collides immersed pump；Meanwhile immersed pump is being transported in order to prevent
Rotation occurs during row, pump sump bottom bottom can set rotation-preventing mechanism, be lifted by steel wire rope, be easy to cause immersed pump and put not
In place, immersed pump is made to be placed on the limiting device inside pump sump, rather than on rotation-preventing mechanism.
Meanwhile immersed pump is also simply positioned on bottom valve by gravity, does not carry out other fixation, in preceding liquid pump operational process
Inevitably have vibration and rock generation.
Due to said structure, the utility model replaces steel wire rope of the prior art by stereoplasm tube, makes inside pump sump
Structure is simplified；In hoisting process, rotation and swing will not occur immersed pump for immersed pump, avoid and pump sump inner wall side
Formula is collided, and stereoplasm tube upper end is fixedly connected with pump sump lid, can prevent immersed pump rotation；
Pump sump bottom does not have to set rotation-preventing mechanism, is put without worry immersed pump not in place；Reduce zero in pump sump
Part, improves lifting speed.
Existing pump sump lifts immersed pump using pulley blocks hoisting mechanism, and the utility model, stereoplasm tube and pump sump
Lid is fixedly connected, then need not specially set hoisting mechanism to lift immersed pump；Meanwhile existing pump sump can also be separately provided out liquid
Pipeline is attached with immersed pump, except steel wire rope in pump sump, also has an outlet tube road, mixed and disorderly inside pump sump；And this practicality
It is new to be integrated hoisting mechanism and outlet tube road by stereoplasm tube, make pump sump internal structure more succinct, easy to safeguard.
Further, the hard pipe outer wall is arranged with some guide parts.
Due to said structure, guide part is set, is lifted easy to immersed pump, while avoids stereoplasm tube long, stereoplasm tube can go out
Now swing, cause pump sump lid to be turned round with stereoplasm tube junction bad（If pump sump lid is connected with stereoplasm tube by welding manner, avoid welding
It is bad to connect position torsion）.
Further, the guide part is set at equal intervals from top to bottom.
Further, the guide part includes mounting disc and positioning disk；The installation is fixedly mounted on stereoplasm tube, institute
Positioning disk is stated to be installed in mounting disc by bolt.
Further, the positioning disk outer rim is outwardly some guiding valves, and the valve that is oriented to is along positioning disk outer rim etc.
It is arranged at intervals.
Due to said structure, in hoisting process, valve is oriented to the contact surface of pump sump wall than whole positioning disk outer rim and pump sump
Contact area it is small, therefore during colliding, frictional force can smaller, easy to lift.
Further, the positioning disk axial symmetry segmentation into two, is installed in mounting disc separately through bolt, is spliced into
One entirety.
Due to said structure, positioning disk is two halves formula, is easily installed；Half of positioning disk, processing effect need to be only processed during processing
Rate is high, high yield rate.
Further, the immersed pump bottom is provided with some elastic components, and the elastic component is used to support immersed pump.
Since immersed pump is suspended from hard bottom of the tube, if hard length of tube is inadequate, immersed pump is in vacant state,
Since stereoplasm tube is longer, the vibration that is produced during pump operation, rock and be easy to pull apart the junction of pump sump lid and stereoplasm tube.
Therefore, immersed pump is supported by elastic component, avoids stereoplasm tube hanging, can effectively reduce the vibration that is produced during pump operation and
Rock, the service life of elevator pump.Meanwhile elastic component also can avoid immersed pump bottom from colliding in hoisting process.
Further, the elastic component is spring mechanism, and the spring mechanism includes spring guide pipe and is movably set in
Spring outside spring guide pipe；The spring guide pipe includes inner and outer tubes, its middle external tube is movably set in inner tube, and with
Inner tube in the vertical direction relatively moves, and sliding block is provided with said inner tube side wall, and sliding slot, institute are offered on outer tube wall
State sliding block to be placed in sliding slot, relatively moved with sliding slot；The sliding block cooperates with sliding slot, and the sliding block and sliding slot are mutual
Coordinate, the extreme position relatively moved for limiting inner and outer tubes in the vertical direction.
Circumferentially array is arranged on immersed pump bottom to the spring mechanism, and wherein inner tube upper end is fixedly mounted on immersed pump bottom
Portion, and spring upper end is contacted with immersed pump bottom, outer pipe bottom is provided with base, and the base is placed on the support of pump sump bottom
On platform, and lower spring end and base contacts.
Due to said structure, the spring guide pipe of spring mechanism is assembled by inner and outer pipe, then spring guide pipe can be with
Freely stretch, to adapt to different operating demand.Existing spring guide pipe is the polished rod of regular length, may be only available for specific work
Condition, spring is needed replacing if operating mode changes, and the spring mechanism of the utility model can be applied under multiple operating modes.
When immersed pump bottom is fixed with multiple spring mechanisms, spring mechanism and friction caused by pump sump bottom platform
Power can also offset immersed pump start caused by twisting resistance, reduce to stereoplasm tube weld apply twisting resistance.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
LNG storage tank inner space and pump sump inner space in the utility model, can actively turn off at any time outside storage tank,
Easy access pump sump；Meanwhile avoid LNG from being exported from pump sump and reveal, solve in the prior art, when LNG is revealed from pump sump outlet, nothing
Method turns off the problem of pump sump.
Shut-off valve in the utility model, easy access and maintenance, maintenance personal, without going deep into pump sump and immersed pump
Portion.
Pump sump in the utility model, internal structure is clean and tidy, simple, simplifies many parts, immersed pump passes through hard
Pipe is connected with pump sump lid, can prevent immersed pump rotation and swing in hoisting process, avoid colliding with pump sump inner wall, no
Occur and situation not in place is installed, improve lifting speed, be easily installed and safeguard.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is pump sump chart at the bottom of；
Fig. 3 is the structural scheme of mechanism of positioning disk；
Fig. 4 is the diagrammatic cross-section of spring mechanism；
Fig. 5 is the outside schematic diagram of spring mechanism；
Fig. 6 is immersed pump polycrystalline substance schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
The utility model discloses a kind of LNG storage tank with shut-off valve pump sump, it include the interior pump sump 2 for setting immersed pump 5,
LNG storage tank 9, the pump sump 2 are inserted into LNG storage tank 9, and 2 bottom of pump sump is inserted in 9 bottom interlayer 8 of LNG storage tank, 2 bottom of pump sump
Shut-off valve is connected by pipeline, the shut-off valve includes valve body 7, spool, valve deck, and the valve body 7 is placed in 9 bottom of LNG storage tank folder
In layer 8,7 liquid outlet of valve body is connected by pipeline with 2 bottom of pump sump, and 7 inlet of valve body inside pipeline and LNG storage tank 9 by connecting
It is logical；Spool is provided with the valve body 7, valve rod 10 is connected with the spool, the valve rod 10 and valve deck draw LNG storage tank 9
Top；Immersed pump 5 is provided with the pump sump 2, the 5 top liquid outlet of immersed pump passes through stereoplasm tube 3 and the pump at the top of pump sump 2
1 liquid outlet of well lid connects；The stereoplasm tube 3 is fixedly connected with pump sump lid 1.The mode that is fixedly connected can be welding, or
Stereoplasm tube upper end sets ring flange, is connected by way of screw with pump sump lid.
3 outer wall of stereoplasm tube is arranged with some guide parts 4.
The guide part 4 is set at equal intervals from top to bottom.
The guide part 4 includes mounting disc and positioning disk；The installation is fixedly mounted on stereoplasm tube 3, the guiding
Disk is installed in mounting disc by bolt.
The positioning disk outer rim is outwardly some guiding valves 12, and the guiding valve 12 is set at equal intervals along positioning disk outer rim
Put.
The positioning disk axial symmetry segmentation into two, is installed in mounting disc separately through bolt, is spliced into an entirety.
5 bottom of immersed pump is provided with some elastic components 6, and the elastic component 6 is used to support immersed pump 5.
The elastic component 6 is spring mechanism, and the spring mechanism includes spring guide pipe and is movably set in spring guiding
Spring outside pipe；The spring guide pipe includes inner tube 13 and outer tube 15, its middle external tube 15 is movably set in inner tube 13, and with
13 in the vertical direction of inner tube relatively moves, and sliding block 14 is provided with 13 side wall of said inner tube, is opened up on 15 side wall of outer tube
There is sliding slot 16, the sliding block 14 is placed in sliding slot 16, is relatively moved with sliding slot 16；The sliding block cooperates with sliding slot,
The sliding block 14 cooperates with sliding slot 16, for the pole for limiting inner tube 13 and 15 in the vertical direction of outer tube relatively moves
Extreme position.
Circumferentially array is arranged on 5 bottom of immersed pump to the spring mechanism, and wherein 13 upper end of inner tube is fixedly mounted on latent liquid
5 bottoms are pumped, and spring upper end is contacted with 5 bottom of immersed pump, 15 bottom of outer tube is provided with base, and the base is placed on pump sump 2
In the support platform 11 of bottom, and lower spring end and base contacts.
In this implementation, sliding block 14 is screw, and symmetrically threaded hole is opened up in the left and right sides of inner tube 13；15 both sides of outer tube are also symmetrical
Sliding slot 16 is opened up, which runs through 15 wall of outer tube, and screw is inserted in the threaded hole of inner tube 13 through sliding slot 16；In nature
Under, screw 14 and sliding slot upper-end contact, continue to move down, outer tube 15 reaches the limit position moved down for limiting outer tube 15
Put, guide pipe is in most long status at this time；When 15 base of outer tube is contacted with support platform, outer tube 15 moves up, until outer
The top of pipe 15 and preceding liquid pump top contact, or untill sliding slot lower end is contacted with screw 14, outer tube 15 reaches the limit moved up
Position, at this time guide pipe be in most short status.The screw 14 cooperates with sliding slot, screw 14 and sliding slot upper end or lower termination
Touch, for the extreme position for limiting inner tube 13 and 15 in the vertical direction of outer tube relatively moves.
Sliding block is done using screw 14, makes the manufacture difficulty for simply, simplifying sliding block.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. the LNG storage tank with shut-off valve pump sump, it is characterised in that:It sets immersed pump in including（5）Pump sump（2）, LNG storage tank
（9）, the pump sump（2）It is inserted into LNG storage tank（9）, pump sump（2）Bottom is inserted to LNG storage tank（9）Bottom interlayer（8）It is interior, the pump sump
（2）Bottom connects shut-off valve by pipeline, and the shut-off valve includes valve body（7）And spool, the valve body（7）It is placed in LNG storage tank
（9）Bottom interlayer（8）It is interior, valve body（7）Liquid outlet passes through pipeline and pump sump（2）Bottom connects, valve body（7）Inlet passes through pipeline
And LNG storage tank（9）Inside connection；The valve body（7）Spool is inside provided with, valve rod is connected with the spool（10）, the valve
Bar（10）Draw LNG storage tank（9）Top；The pump sump（2）Inside it is provided with immersed pump（5）, the immersed pump（5）Top liquid outlet
Pass through stereoplasm tube（3）With pump sump（2）The pump sump lid at top（1）Liquid outlet connects；The stereoplasm tube（3）With pump sump lid（1）It is fixed
Connection.
2. the LNG storage tank according to claim 1 with shut-off valve pump sump, it is characterised in that：The stereoplasm tube（3）Outer wall set
Equipped with some guide parts（4）.
3. the LNG storage tank according to claim 2 with shut-off valve pump sump, it is characterised in that：The guide part（4）From up to
Inferior interval setting.
4. the LNG storage tank according to claim 3 with shut-off valve pump sump, it is characterised in that：The guide part（4）Including peace
Sabot and positioning disk；The installation is fixedly mounted in stereoplasm tube（3）On, the positioning disk is installed on mounting disc by bolt
On.
5. the LNG storage tank according to claim 4 with shut-off valve pump sump, it is characterised in that：The positioning disk outer rim is outside
It is protruding with some guiding valves（12）, the guiding valve（12）Set at equal intervals along positioning disk outer rim.
6. the LNG storage tank according to claim 5 with shut-off valve pump sump, it is characterised in that：The positioning disk axial symmetry point
Two halves are cut into, is installed on separately through bolt in mounting disc, is spliced into an entirety.
7. the LNG storage tank according to claim 6 with shut-off valve pump sump, it is characterised in that：The immersed pump（5）Bottom is set
It is equipped with some elastic components（6）, the elastic component（6）It is used to support immersed pump（5）.
8. the LNG storage tank according to claim 7 with shut-off valve pump sump, it is characterised in that：The elastic component（6）For spring
Mechanism, the spring mechanism include spring guide pipe and the spring being movably set in outside spring guide pipe；The spring guide pipe
Including inner tube（13）And outer tube（15）, its middle external tube（15）It is movably set in inner tube（13）On, and and inner tube（13）In vertical side
Relatively move upwards, said inner tube（13）Sliding block is provided with side wall（14）, outer tube（15）Sliding slot is offered on side wall
（16）, the sliding block（14）It is placed in sliding slot（16）It is interior, with sliding slot（16）Relatively move；The sliding block and sliding slot phase interworking
Close, the sliding block（14）With sliding slot（16）Cooperate, for limiting inner tube（13）And outer tube（15）In the vertical direction occurs
The extreme position of relative movement.
9. the LNG storage tank according to claim 8 with shut-off valve pump sump, it is characterised in that：The spring mechanism is circumferentially
Array is arranged on immersed pump（5）Bottom, wherein inner tube（13）Upper end is fixedly mounted on immersed pump（5）Bottom, and spring upper end with
Immersed pump（5）Bottom contacts, outer tube（15）Bottom is provided with base, and lower spring end and base contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290632.1U CN207316471U (en) | 2017-09-30 | 2017-09-30 | LNG storage tank with shut-off valve pump sump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290632.1U CN207316471U (en) | 2017-09-30 | 2017-09-30 | LNG storage tank with shut-off valve pump sump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207316471U true CN207316471U (en) | 2018-05-04 |
Family
ID=62429005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721290632.1U Active CN207316471U (en) | 2017-09-30 | 2017-09-30 | LNG storage tank with shut-off valve pump sump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207316471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477360A (en) * | 2017-09-30 | 2017-12-15 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with stop valve pump sump |
| WO2022194346A1 (en) | 2021-03-16 | 2022-09-22 | Wärtsilä Gas Solutions Norway AS | A liquefied fuel discharge assembly in a storage tank |
-
2017
- 2017-09-30 CN CN201721290632.1U patent/CN207316471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477360A (en) * | 2017-09-30 | 2017-12-15 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with stop valve pump sump |
| WO2022194346A1 (en) | 2021-03-16 | 2022-09-22 | Wärtsilä Gas Solutions Norway AS | A liquefied fuel discharge assembly in a storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 610041 No.3, floor 11, building 6, no.599, shijicheng South Road, Chengdu high tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu City, Sichuan Province Patentee after: Houpu clean energy Co.,Ltd. Address before: 610041, No. 11, No. 6, No. 599, No. 3 South City Road, Chengdu hi tech Development Zone, Sichuan Patentee before: CHENGDU HUAQI HOUPU HOLDING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee after: Houpu clean energy (Group) Co.,Ltd. Address before: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee before: Houpu clean energy Co.,Ltd. |