CN207298365U - LNG storage tank with bottom valve pump sump and with bottom valve pump sump - Google Patents
LNG storage tank with bottom valve pump sump and with bottom valve pump sump Download PDFInfo
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- CN207298365U CN207298365U CN201721277247.3U CN201721277247U CN207298365U CN 207298365 U CN207298365 U CN 207298365U CN 201721277247 U CN201721277247 U CN 201721277247U CN 207298365 U CN207298365 U CN 207298365U
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Abstract
The utility model discloses a kind of band bottom valve pump sump, immersed pump is provided with pump sump, pump sump bottom is connected by pipeline with bottom valve, and the bottom valve is connected by driving-chain with tank bottom valve operating gear, and the tank bottom valve operating gear controls bottom valve to cut-off by driving-chain；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 the storage safety of LNG storage tank.
Description
Technical field
Pump sump field is the utility model is related to, refers in particular to a kind of LNG storage tank with bottom valve pump sump and with bottom 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.
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 with bottom valve pump sump and with tank bottom
The LNG storage tank of valve pump sump, the pump sump can actively be turned off from exterior, avoid LNG from revealing；Tieed up easy to the immersed pump in pump sump
Repair；Ensure the storage safety of LNG storage tank.
The technical solution adopted in the utility model is as follows：
The utility model discloses a kind of band bottom valve pump sump, immersed pump is provided with pump sump, pump sump bottom passes through pipeline
It is connected with bottom valve, the bottom valve is connected by driving-chain with tank bottom valve operating gear, and the tank bottom valve operating gear passes through
Driving-chain control bottom valve is cut-off.
Due to said structure, pump sump bottom connects bottom valve by pipeline, external equivalent to by bottom valve of the prior art,
When the pump sump is applied to inside LNG storage tank, tank bottom valve operating gear is arranged on outside storage tank, can pass through tank bottom valve operating gear
Pump sump bottom is actively turned off, pump sump inner space is isolated with LNG storage tank inner space.Pump sump export pipeline junction is avoided to go out
During existing LNG leakages, staff can not be close, can not open pump sump lid and lift immersed pump, causes existing pump shaft bottom valve can not
The phenomenon of shut-off occurs.
The utility model can actively turn off bottom valve outside storage tank, isolate inside pump sump inner space and LNG storage tank
Space, ensure that the storage transportation safety of LNG.Meanwhile when repairing immersed pump, also pump sump can be actively turned off from outside, kept away
When exempting from turn on pump well lid, there are high pressure in pump sump, danger is brought to maintenance personal.
Further, it is provided with pump sump lid at the top of the pump sump, the liquid outlet of immersed pump passes through stereoplasm tube and pump in pump sump
Liquid outlet on well lid is connected.
Due to said structure, immersed pump connects pump sump lid by stereoplasm tube, simplifies the internal structure of pump sump, existing pump sump
It is interior, pump is lifted using steel wire rope, rotation and swing occurs in immersed pump in hoisting process, is easily sent out with pump sump inner wall
Raw collision；Rotation occurs when immersed pump is run in order to prevent at the same time can generally pump in bottom setting rotation-preventing mechanism, pass through steel wire
Rope be easy to cause pump during lifting pump and be put on limiting device, causes pump to be put not in place.
And the utility model by stereoplasm tube connect immersed pump, immersed pump in hoisting process will not rotation and swing, because
This will not collide with pump sump inner wall；Stereoplasm tube upper end is fixedly connected with pump sump lid at the same time, can prevent immersed pump rotation, is pumped
Bottom does not have to set rotation-preventing mechanism, is put without worry immersed pump not in place；Reduce the parts in pump sump, improve lifting
Speed, easy to safeguard.
Existing pump sump in addition to steel wire rope, there is provision of special hoisting mechanism（Pulley blocks hoisting mechanism）, also have
Outlet tube road is attached with immersed pump, mixed and disorderly inside pump sump；Using the type of attachment of stereoplasm tube by outlet tube road and hoisting machine
Structure combines together, more succinct inside pump sump, easy to safeguard.
Further, equally spaced fixing sleeve is equipped with some guide parts to the hard pipe outer wall from top to bottom.
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 includes mounting disc and positioning disk；The mounting disc is welded on stereoplasm tube, described to lead
It is installed on to disk by bolt in mounting disc；The positioning disk outer rim is outwardly some guiding valves, and the guiding valve edge is led
Set at equal intervals to disk outer rim.
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 pump sump bottom is provided with elastic component, and the elastic component is used to support immersed pump bottom.
Since immersed pump is suspended from hard bottom of the tube, if hard length of tube is inadequate, immersed pump is in vacant state,
It is easy to pull apart the weld of pump sump lid and stereoplasm tube.Therefore, immersed pump is supported by elastic component, avoids stereoplasm tube from hanging
It is empty.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；
Said inner tube upper end is fixedly mounted on immersed pump bottom, and spring upper end is contacted with immersed pump bottom, the outer tube
Bottom is provided with base, 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.
Further, the bottom valve includes valve body, and valve rod is provided with valve body, and valve rod lower end is provided with flap, valve rod
Valve deck is run through in upper end, and is connected by driving-chain with tank bottom valve operating gear；Movable sleeve is equipped with flap reset bullet on the valve rod
Spring, the flap resetting spring upper end are contacted with valve deck, lower end and valve flap contacts；The tank bottom valve operating gear passes through driving-chain
Band ovable valve stem, which moves up to move, lifts flap, opens bottom valve；The body base liquid outlet is connected by pipeline with pump sump bottom.
The tank bottom valve operating gear includes cylinder, and piston rod is provided with the cylinder, and described piston rod one end passes through
Driving-chain is connected with valve rod upper end, and the other end is connected with piston rod resetting spring as in cylinder, and the piston rod resets bullet
As in cylinder, one end is connected spring with piston rod, and the other end is connected with cylinder bottom；The cylinder is also connected to gas by valve
Source.
Due to said structure, open air source control valve, cylinder is connected with source of the gas, gas into cylinder, piston rod to
Cylinder contract, lifts driving-chain and flap, opens bottom valve；After closing air source control valve, in piston rod resetting spring and valve
Under the action of valve resetting spring, flap is closed；Pump sump inner space is set to isolate with LNG storage tank inner space.
By the opening and closing of active control air source control valve, and then control bottom valve to close, pump sump inner space is stored up with LNG
Tank inner space isolates.The storage transportation safety of LNG is ensure that, easy to immersed pump, pump sump, LNG storage tank and other peripheral pipelines
Maintenance.
When air source control valve is solenoid valve, solenoid valve connection is controlled by controller, additionally it is possible to realizes the automatic of bottom valve
Control, further improves security.
The invention also discloses a kind of LNG storage tank with bottom valve pump sump, it includes above-mentioned band bottom valve pump sump, pump
In well insertion LNG storage tank, in the bottom interlayer of pump sump bottom insertion LNG storage tank, the bottom valve is arranged in LNG storage tank, peace
Mounted in LNG storage tank bottom；Pump sump bottom is connected by pipeline with bottom valve, and the pipeline is as in interlayer；The bottom valve leads to
Cross driving-chain with the tank bottom valve operating gear being arranged at the top of LNG storage tank to be connected, the tank bottom valve operating gear passes through driving-chain
Control bottom valve is cut-off.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
The utility model can be turned off from outside, pump sump, and when avoiding pump sump outlet generation LNG leakages, maintenance personal cannot
It is close, it is impossible to which that the situation of pump sump shut-off occurs.In the utility model, immersed pump is connected with pump sump lid by stereoplasm tube, is simplified
Pump sump internal structure, avoids pump sump and immersed pump collides in hoisting process, improve lifting speed.Latent liquid at the same time
Pump the spring mechanism of lower section, additionally it is possible to avoid immersed pump that rotation occurs on startup.
Brief description of the drawings
Fig. 1 is the structure diagram in pump sump insertion LNG storage tank；
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 outside schematic diagram of spring mechanism；
Fig. 5 is the diagrammatic cross-section of spring mechanism；
Fig. 6 is immersed pump polycrystalline substance schematic diagram；
Fig. 7 is tank bottom valve operating gear operation principle 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.
Embodiment 1：
Present embodiment discloses band bottom valve pump sump, immersed pump 5 is provided with pump sump 2,2 bottom of pump sump passes through pipeline and tank
Bottom valve 8 is connected, and the bottom valve 8 is connected by driving-chain 10 with tank bottom valve operating gear 11, the tank bottom valve operating gear 11
Bottom valve 8 is controlled to cut-off by driving-chain 10.
The top of the pump sump 2 is provided with pump sump lid 1, and the liquid outlet of immersed pump 5 passes through stereoplasm tube 3 and pump sump lid 1 in pump sump 2
On liquid outlet be connected.Wherein the inlet of immersed pump 5 is located at immersed pump bottom, and liquid outlet is located at the top of immersed pump.It is described
Stereoplasm tube 3 is fixedly connected with pump sump lid 1, and the mode that is fixedly connected can be welding, or set ring flange in stereoplasm tube upper end,
It is connected by way of screw with pump sump lid.
Equally spaced fixing sleeve is equipped with some guide parts 4 to 3 outer wall of stereoplasm tube from top to bottom.
The guide part 4 includes mounting disc and positioning disk；The mounting disc is welded on stereoplasm tube 3, and the positioning disk leads to
Bolt is crossed in mounting disc；The positioning disk outer rim is outwardly some guiding valves 26, has 4 guiding in the present embodiment
Valve 26, the guiding valve 26 are set at equal intervals along positioning disk outer rim.
The positioning disk axial symmetry segmentation into two, is installed in mounting disc separately through bolt, is spliced into an entirety.
2 bottom of pump sump is provided with elastic component 6, and the elastic component 6 is used to support 5 bottom of immersed pump.
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 15 and outer tube 16, its middle external tube 16 is movably set in inner tube 15, and with
15 in the vertical direction of inner tube relatively moves, and sliding block 14 is provided with 15 side wall of said inner tube, is opened up on 16 side wall of outer tube
There is sliding slot 13, the sliding block 14 is placed in sliding slot 13, is relatively moved with sliding slot 13；The sliding block cooperates with sliding slot,
The sliding block 14 cooperates with sliding slot 13, for the pole for limiting inner tube 15 and 16 in the vertical direction of outer tube relatively moves
Extreme position.
15 upper end of said inner tube is fixedly mounted on 5 bottom of immersed pump, and spring upper end is contacted with 5 bottom of immersed pump, described
16 bottom of outer tube is provided with base, and lower spring end and base contacts；The base is placed on the support platform 12 of 2 bottom of pump sump
On.
In this implementation, sliding block 14 is screw, and symmetrically threaded hole is opened up in the left and right sides of inner tube 15；16 both sides of outer tube are also symmetrical
Sliding slot 13 is opened up, which runs through 16 wall of outer tube, and screw is inserted in the threaded hole of inner tube 15 through sliding slot 13；In nature
Under, screw 14 and sliding slot upper-end contact, continue to move down, outer tube 16 reaches the limit position moved down for limiting outer tube 16
Put, guide pipe is in most long status at this time；When 16 base of outer tube is contacted with support platform, outer tube 16 moves up, until outer
The top of pipe 16 and preceding liquid pump top contact, or untill sliding slot lower end is contacted with screw 14, outer tube 16 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 15 and 16 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.
In the present embodiment, the number of spring mechanism be it is multiple, it is arranged in rows in a ring to be fixedly connected on 5 bottom of immersed pump,
Immersed pump 5 easy to support, while avoid rotating during the startup of immersed pump 5.It is siphunculus that each spring, which is oriented to bottom of the tube, is easy to
LNG stream mistake.
The bottom valve 8 includes valve body 17, and valve rod 18 is provided with valve body 17, and 18 lower end of valve rod is provided with flap 20, valve
Valve deck 19 is run through in 18 upper end of bar, and is connected by driving-chain 10 with tank bottom valve operating gear 11；It is slidingly connected on the valve rod 18
There is flap resetting spring, the flap resetting spring upper end is contacted with valve deck 19, and lower end is contacted with flap 20；17 side of valve body
Offer some inlet openings on side, 17 bottom of valve body offers liquid outlet, the flap 20 be used for 17 inlet of application valve body and
The conducting state of liquid outlet.The tank bottom valve operating gear 11 lifts flap 20 by driving-chain 10 with movement on ovable valve stem 18,
Open bottom valve 8；The 17 bottom liquid outlet of valve body is connected by pipeline with 2 bottom of pump sump.
The tank bottom valve operating gear 11 includes cylinder, and piston rod 21, the piston rod 21 1 are provided with the cylinder
End is connected by driving-chain 10 with 18 upper end of valve rod, and the other end is connected with piston rod resetting spring 22 as in cylinder, described
Piston rod resetting spring 22 is as in cylinder, and one end is connected with piston rod 21, and the other end is connected with cylinder bottom；The cylinder is also
Pass sequentially through throttle valve 23, air source control valve 24, three linked piece 25 and be connected to source of the gas.
When opening air source control valve 24, cylinder is connected with source of the gas, and gas enters in cylinder, and piston rod 21 is received into cylinder
Contracting, lifts driving-chain 10 and flap 20, opens bottom valve 8, inlet opening and liquid outlet conducting on valve body 17；Close source of the gas control
During valve 24, under the action of piston rod resetting spring 22 and flap resetting spring, flap 20 resets, the inlet opening on valve body 17 and
Liquid outlet disconnects, and 2 inner space of pump sump is isolated with 9 inner space of LNG storage tank.At the same time by adjusting throttle valve, moreover it is possible to control
The circulation of source of the gas, and then control the aperture of bottom valve；Make the control of LNG stream amount size inside first pump sump.
Embodiment 2：
The utility model discloses a kind of LNG storage tank 9 with bottom valve pump sump, it includes band bottom valve pump sump, and pump sump 2 is inserted
Entering in LNG storage tank 9, in the bottom interlayer 7 of 2 bottom of pump sump insertion LNG storage tank 9, the bottom valve 8 is arranged in LNG storage tank 9,
Installed in 9 bottom of LNG storage tank；2 bottom of pump sump is connected by pipeline with bottom valve 8, and the pipeline is as in interlayer 7；The tank
Bottom valve 8 is connected by driving-chain 10 with being arranged on the tank bottom valve operating gear 11 at the top of LNG storage tank 9, and the bottom valve operates machine
Structure 11 controls bottom valve 8 to cut-off by driving-chain 10.
The top of the pump sump 2 is provided with pump sump lid 1, and the liquid outlet of immersed pump 5 passes through stereoplasm tube 3 and pump sump lid 1 in pump sump 2
On liquid outlet be connected.Wherein the inlet of immersed pump 5 is located at immersed pump bottom, and liquid outlet is located at the top of immersed pump.It is described
Stereoplasm tube 3 is fixedly connected with pump sump lid 1, and the mode that is fixedly connected can be welding, or set ring flange in stereoplasm tube upper end,
It is connected by way of screw with pump sump lid.
Equally spaced fixing sleeve is equipped with some guide parts 4 to 3 outer wall of stereoplasm tube from top to bottom.
The guide part 4 includes mounting disc and positioning disk；The mounting disc is welded on stereoplasm tube 3, and the positioning disk leads to
Bolt is crossed in mounting disc；The positioning disk outer rim is outwardly some guiding valves 26, has 4 guiding in the present embodiment
Valve 26, the guiding valve 26 are set at equal intervals along positioning disk outer rim.
The positioning disk axial symmetry segmentation into two, is installed in mounting disc separately through bolt, is spliced into an entirety.
2 bottom of pump sump is provided with elastic component 6, and the elastic component 6 is used to support 5 bottom of immersed pump.
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 15 and outer tube 16, its middle external tube 16 is movably set in inner tube 15, and with
15 in the vertical direction of inner tube relatively moves, and sliding block 14 is provided with 15 side wall of said inner tube, is opened up on 16 side wall of outer tube
There is sliding slot 13, the sliding block 14 is placed in sliding slot 13, is relatively moved with sliding slot 13；The sliding block cooperates with sliding slot,
The sliding block 14 cooperates with sliding slot 13, for the pole for limiting inner tube 15 and 16 in the vertical direction of outer tube relatively moves
Extreme position.
15 upper end of said inner tube is fixedly mounted on 5 bottom of immersed pump, and spring upper end is contacted with 5 bottom of immersed pump, described
16 bottom of outer tube is provided with base, and lower spring end and base contacts；The base is placed on the support platform 12 of 2 bottom of pump sump
On.
In this implementation, sliding block 14 is screw, and symmetrically threaded hole is opened up in the left and right sides of inner tube 15；16 both sides of outer tube are also symmetrical
Sliding slot 13 is opened up, which runs through 16 wall of outer tube, and screw is inserted in the threaded hole of inner tube 15 through sliding slot 13；In nature
Under, screw 14 and sliding slot upper-end contact, continue to move down, outer tube 16 reaches the limit position moved down for limiting outer tube 16
Put, guide pipe is in most long status at this time；When 16 base of outer tube is contacted with support platform, outer tube 16 moves up, until outer
The top of pipe 16 and preceding liquid pump top contact, or untill sliding slot lower end is contacted with screw 14, outer tube 16 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 15 and 16 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.
In the present embodiment, the number of spring mechanism be it is multiple, it is arranged in rows in a ring to be fixedly connected on 5 bottom of immersed pump,
Immersed pump 5 easy to support, while avoid rotating during the startup of immersed pump 5.It is siphunculus that each spring, which is oriented to bottom of the tube, is easy to
LNG stream mistake.
The bottom valve 8 includes valve body 17, and valve rod 18 is provided with valve body 17, and 18 lower end of valve rod is provided with flap 20, valve
Valve deck 19 is run through in 18 upper end of bar, and is connected by driving-chain 10 with tank bottom valve operating gear 11；It is slidingly connected on the valve rod 18
There is flap resetting spring, the flap resetting spring upper end is contacted with valve deck 19, and lower end is contacted with flap 20；17 side of valve body
Offer some inlet openings on side, 17 bottom of valve body offers liquid outlet, the flap 20 be used for 17 inlet of application valve body and
The conducting state of liquid outlet.The tank bottom valve operating gear 11 lifts flap 20 by driving-chain 10 with movement on ovable valve stem 18,
Open bottom valve 8；The 17 bottom liquid outlet of valve body is connected by pipeline with 2 bottom of pump sump.
The tank bottom valve operating gear 11 includes cylinder, and piston rod 21, the piston rod 21 1 are provided with the cylinder
End is connected by driving-chain 10 with 18 upper end of valve rod, and the other end is connected with piston rod resetting spring 22 as in cylinder, described
Piston rod resetting spring 22 is as in cylinder, and one end is connected with piston rod 21, and the other end is connected with cylinder bottom；The cylinder is also
Pass sequentially through throttle valve 23, air source control valve 24, three linked piece 25 and be connected to source of the gas.
When opening air source control valve 24, cylinder is connected with source of the gas, and gas enters in cylinder, and piston rod 21 is received into cylinder
Contracting, lifts driving-chain 10 and flap 20, opens bottom valve 8, inlet opening and liquid outlet conducting on valve body 17；Close source of the gas control
During valve 24, under the action of piston rod resetting spring 22 and flap resetting spring, flap 20 resets, the inlet opening on valve body 17 and
Liquid outlet disconnects, and 2 inner space of pump sump is isolated with 9 inner space of LNG storage tank.At the same time by adjusting throttle valve, moreover it is possible to control
The circulation of source of the gas, and then control the aperture of bottom valve；Make the control of LNG stream amount size inside first pump sump.
Embodiment 3
The present embodiment is substantially the same with Examples 1 and 2, its difference is, throttle valve 23, air source control valve 24 are
Solenoid valve, and throttle valve 23, air source control valve are connected with controller；LNG leak detections biography is also associated with the controller
Sensor and press detection sensor, the LNG leakage detecting sensors are installed on pump sump exit, press detection sensor is set
In pump sump.
When pressure detecting detection sensor detects that pump borehole pressure is more than the setting value in controller, controller
Control throttle valve opening diminishes, and then controls and then control LNG, into the liquid inlet volume in people's pump sump, to automatically adjust pump by bottom valve
Well internal pressure, ensures work safety.
When LNG leakage detecting sensors detect that there are LNG leakages in pump sump exit, controller control electromagnetism valve breakdown,
And then tank bottom is turned off, 2 inner space of pump sump is isolated with 9 inner space of LNG storage tank.
Due to said structure, throttle valve 23, air source control valve 24 are solenoid valve, they can be realized remote by controller
Journey automatically controls, and realizes automatically controlling for tank bottom valve opening, further ensures the storage transportation safety of LNG storage tank.
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 (10)
1. band bottom valve pump sump, it is characterised in that：Pump sump（2）Inside it is provided with immersed pump（5）, pump sump（2）Bottom by pipeline with
Bottom valve（8）It is connected, the bottom valve（8）Pass through driving-chain（10）With tank bottom valve operating gear（11）It is connected, the bottom valve
Operating mechanism（11）Pass through driving-chain（10）Control bottom valve（8）Cut-off.
2. band bottom valve pump sump according to claim 1, it is characterised in that：The pump sump（2）Top is provided with pump sump lid
（1）, pump sump（2）Interior immersed pump（5）Liquid outlet pass through stereoplasm tube（3）With pump sump lid（1）On liquid outlet be connected.
3. band bottom valve pump sump according to claim 2, it is characterised in that：The stereoplasm tube（3）Outer wall is from top to bottom etc.
The fixing sleeve at interval is equipped with some guide parts（4）.
4. band bottom valve pump sump according to claim 3, it is characterised in that：The guide part（4）Including mounting disc and lead
To disk；The mounting disc is welded on stereoplasm tube（3）On, the positioning disk is installed in mounting disc by bolt；The positioning disk
Outer rim is outwardly some guiding valves（26）, the guiding valve（26）Set at equal intervals along positioning disk outer rim.
5. band bottom valve pump sump according to claim 4, it is characterised in that：The positioning disk axial symmetry is split into two,
It is installed on separately through bolt in mounting disc, is spliced into an entirety.
6. band bottom valve pump sump according to claim 1, it is characterised in that：The pump sump（2）Bottom is provided with elastic component
（6）, the elastic component（6）It is used to support immersed pump（5）Bottom.
7. band bottom valve pump sump according to claim 6, it is characterised in that：The elastic component（6）It is described for spring mechanism
Spring mechanism includes spring guide pipe and the spring being movably set in outside spring guide pipe；The spring guide pipe includes inner tube
（15）And outer tube（16）, its middle external tube（16）It is movably set in inner tube（15）On, and and inner tube（15）In the vertical direction occurs
Relative movement, said inner tube（15）Sliding block is provided with side wall（14）, outer tube（16）Sliding slot is offered on side wall（13）, the cunning
Block（14）It is placed in sliding slot（13）It is interior, with sliding slot（13）Relatively move；The sliding block cooperates with sliding slot, the sliding block
（14）With sliding slot（13）Cooperate, for limiting inner tube（15）And outer tube（16）The pole that in the vertical direction relatively moves
Extreme position；
Said inner tube（15）Upper end is fixedly mounted on immersed pump（5）Bottom, and spring upper end and immersed pump（5）Bottom contacts, institute
State outer tube（16）Bottom is provided with base, and lower spring end and base contacts.
8. band bottom valve pump sump according to claim 1, it is characterised in that：The bottom valve（8）Including valve body（17）, valve
Body（17）Inside it is provided with valve rod（18）, valve rod（18）Lower end is provided with flap（20）, valve rod（18）Valve deck is run through in upper end（19）, and
Pass through driving-chain（10）With tank bottom valve operating gear（11）It is connected；The valve rod（18）Upper movable sleeve is equipped with flap resetting spring,
The flap resetting spring upper end and valve deck（19）Contact, lower end and flap（20）Contact；The tank bottom valve operating gear（11）
Pass through driving-chain（10）Band ovable valve stem（18）Upper movement lifts flap（20）, make bottom valve（8）Open；The valve body（17）Bottom
Liquid outlet passes through pipeline and pump sump（2）Bottom connects.
9. band bottom valve pump sump according to claim 8, it is characterised in that：The tank bottom valve operating gear（11）Including gas
Cylinder, is provided with piston rod in the cylinder（21）, the piston rod（21）One end passes through driving-chain（10）With valve rod（18）Upper end
Be connected, the other end as in cylinder, and with piston rod resetting spring（22）It is connected, the piston rod resetting spring（22）As for gas
In cylinder, one end and piston rod（21）It is connected, the other end is connected with cylinder bottom；The cylinder also passes through air source control valve（24）Even
It is connected to source of the gas.
10. the LNG storage tank with bottom valve pump sump, it includes the band bottom valve pump sump described in one of the claims 1 to 9, its
It is characterized in that：Pump sump（2）It is inserted into LNG storage tank（9）It is interior, pump sump（2）LNG storage tank is inserted into bottom（9）Bottom interlayer（7）It is interior, institute
State bottom valve（8）It is arranged on LNG storage tank（9）It is interior, installed in LNG storage tank（9）Bottom；Pump sump（2）Bottom passes through pipeline and tank bottom
Valve（8）It is connected, the pipeline is as interlayer（7）It is interior；The bottom valve（8）Pass through driving-chain（10）With being arranged on LNG storage tank（9）
The tank bottom valve operating gear at top（11）It is connected, the tank bottom valve operating gear（11）Pass through driving-chain（10）Control bottom valve
（8）Cut-off.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277247.3U CN207298365U (en) | 2017-09-30 | 2017-09-30 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277247.3U CN207298365U (en) | 2017-09-30 | 2017-09-30 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
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| Publication Number | Publication Date |
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| CN207298365U true CN207298365U (en) | 2018-05-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489881A (en) * | 2017-09-30 | 2017-12-19 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
-
2017
- 2017-09-30 CN CN201721277247.3U patent/CN207298365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489881A (en) * | 2017-09-30 | 2017-12-19 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with bottom valve pump sump and with bottom valve pump sump |
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| 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. |
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| 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. |