CN108569487A - Water seal recovery device and method for emergency drainage device of external floating roof oil tank - Google Patents
Water seal recovery device and method for emergency drainage device of external floating roof oil tank Download PDFInfo
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- CN108569487A CN108569487A CN201710136593.8A CN201710136593A CN108569487A CN 108569487 A CN108569487 A CN 108569487A CN 201710136593 A CN201710136593 A CN 201710136593A CN 108569487 A CN108569487 A CN 108569487A
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- annulus
- water seal
- sealing rubber
- water
- recovery device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 238000011084 recovery Methods 0.000 title claims abstract description 51
- 238000007667 floating Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 92
- 235000015927 pasta Nutrition 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 35
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
- B65D88/48—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with fluid means acting on the seal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a water seal recovery device and a water seal recovery method for an emergency drainage device of an external floating roof oil tank, and belongs to the field of petroleum storage and transportation. The device comprises: a connecting rod; the support ring is sleeved at the middle lower part of the connecting rod, and the connecting rod horizontally rotates along the inner wall of the support ring; a support rod vertically connected with the support ring; a fixed ring connected with the lower end of the support rod; a sealing rubber ring connected with the fixed ring; a screw rod connected with the lower end part of the connecting rod; the sealing rubber plug is connected with the lower end part of the screw rod, is positioned between the supporting circular ring and the fixed circular ring, and has the maximum diameter larger than the inner diameter of the fixed circular ring; the first fastening ring and the second fastening ring are positioned on the upper surface and the lower surface of the sealing rubber plug and are respectively in spiral connection with the lower end part of the screw rod; and the anti-rotation baffle is connected between the sealing rubber plug and the support rod. The water seal recovery device of the emergency drainage device of the external floating roof oil tank can effectively recover the water seal effect of the emergency drainage device.
Description
Technical field
The present invention relates to oil movement and storage field, more particularly to the water seal of a kind of external floating roof tank emergency drainage device restores dress
It sets and its method.
Background technology
External floating roof tank is for storing crude oil, gasoline or kerosene etc. with volatile oil product, and outside it
The cylindrical steel storage tank that floating roof (i.e. floating plate) rises or falls with liquid storage level.In recent years, with storage tank fire incident
It takes place frequently, storage tank Security Officer begins to focus on the safety of external floating roof tank auxiliary device, especially, makes the pasta in External floating roof tank
The equipment being in direct contact with air.
Wherein, emergency drainage device is the auxiliary device of External floating roof tank tank deck, when there is oil in emergency drainage device,
The pasta in External floating roof tank will be made to be in direct contact with air, structure is as shown in Figure 1：From top to bottom it is connected with lid in turn
14, filter bowl 15, sealing ring 16, drainpipe 17, the water sealed tank 18 of lower face sealing and the float 19 in drainpipe 17.Tightly
The effect of anxious drainage arrangement is specially：When External floating roof tank encounters the drainpipe 17 that rainfall and rainfall are more than emergency drainage device
Design discharge capacity (i.e. 20 water surface elevation of floating plate is more than the filter bowl 15 of emergency drainage device) when, the rainwater of the top of floating plate 20 first passes through
Drainpipe 17 flow to the lower part of water sealed tank 18, is then let out to External floating roof tank 21 using the top aperture 1801 of water sealed tank,
To prevent floating plate 20 from sinking.
When all containing water in drainpipe 17 and water sealed tank 18, and not containing oil, emergency drainage device is in normal condition,
Water seal can just be played the role of, that is, so that water is played effective sealing function to the oil in External floating roof tank 21, to prevent External floating roof tank
Pasta in 21 is in direct contact with air.But in practical operation, if emergency drainage device go into operation when not according to code requirement
Add water or External floating roof tank 21 in operation, External floating roof tank operations staff does not check External floating roof tank 21 as requested
The not timely moisturizing of water seal situation, leads to the water evaporation in the drainpipe 17 of emergency drainage device, then emergency drainage device
Damage, prevent water sealed tank 18 can not the reasons such as water can all cause emergency drainage device from playing the role of water seal so that outer floating roof
Oil in storage tank 21 enters in drainpipe 17 and water sealed tank 18, and then the pasta in drainpipe 17 is made directly to be contacted with air.
Under normal circumstances, operations staff can not check, judge the integrity of emergency drainage device, even if plus water, due to the density ratio of water
Oily big, the water of filling can be directly entered in water sealed tank 18, be still oil in drainpipe 17, and risk can not be eliminated.
Currently, there is no corresponding method to go to solve after emergency drainage device oil inlet, only wait until that External floating roof tank overhaul is thrown
It is added water when production, the rectification period is too long, and security risk is brought to storage tank operation.
Invention content
In order to solve the problem of that prior art rectification period too long run to storage tank brings security risk, the present invention is implemented
Example provides a kind of the water seal recovery device and its method of external floating roof tank emergency drainage device.The technical solution is as follows：
On the one hand, a kind of water seal recovery device of external floating roof tank emergency drainage device is provided, described device includes：
Connecting rod；
Be sleeved on the support annulus of the middle and lower part of the connecting rod, and the connecting rod along the support annulus inner wall into
Row rotates horizontally；
With support annulus multiple supporting rods connected vertically；
The clamping rings being connect with the lower end of the supporting rod；
The packer ring being connect with the clamping rings；
The screw rod being connect with the lower end of the connecting rod；
The sealing rubber plug being connect with the lower end of the screw rod, the sealing rubber plug are located at the support annulus and institute
Between stating clamping rings, and the maximum gauge of the sealing rubber plug is more than the internal diameter of the clamping rings；
First connect respectively positioned at the upper and lower surface of the sealing rubber plug and with the lower end spiral of the screw rod is tight
Gu Quan and the second tight loop；
The swirl reducting baffle connected between the sealing rubber plug and the supporting rod.
Preferably, the swirl reducting baffle by the first annulus, the second annulus and is connected to first annulus and described the
Link composition between two annulus；
First annulus is sleeved on the outside of the supporting rod, and second annulus is sleeved on the outside of the screw rod, and institute
The second annulus is stated to be fixed between first tight loop and the sealing rubber plug.
Preferably, the upper end of the supporting rod pass through the support annulus and respectively on the support annulus,
The nut of lower surface carries out spiral connection.
Preferably, the middle and lower part of the connecting rod is welded with third annulus and the 4th annulus, and the third annulus is located at institute
State support annulus upper surface, the 4th annulus be located at it is described support annulus lower surface, and the third annulus with it is described
The outer diameter of 4th annulus is more than the internal diameter of the support annulus.
Preferably, the packer ring is located at the lower surface of the clamping rings, and the following table of the packer ring
Face is connected with the first retainer plate, and bolt is used between the clamping rings, the packer ring and first retainer plate
It is attached.
Preferably, the clamping rings is flange.
Preferably, the lower end of the supporting rod is attached using welding manner with the clamping rings.
Preferably, the outer diameter of the sealing rubber plug gradually decreasees from top to bottom.
Preferably, the upper end spiral of the connecting rod is connected with extension rod, and along the circumferential uniform of the extension rod
Weld multiple handles.
On the other hand, a kind of water seal restoration methods of external floating roof tank emergency drainage device are provided, the method includes
Following steps：
A, into drainpipe, injection stands the predetermined time later more than the water of the design water injection rate of emergency drainage device；
B, water seal recovery device is inserted into the drainpipe until close to the pasta in the drainpipe, then to described
Water filling in drainpipe, wherein the sealing rubber plug of the water seal recovery device seals clamping rings；
C, when the water surface in the drainpipe be higher than pasta preset distance when, slowly transfer the water seal recovery device until
Reach the bottom of the drainpipe；
D, rotatable connection bar makes the sealing rubber plug move up until the sealing rubber plug leaves the clamping rings；
E, the water seal recovery device is slowly lifted upwards until leaving the drainpipe, then stop water filling.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
By the way that clamping rings and packer ring are attached and carry out the lower end of screw rod and sealing rubber plug
Connection, and the endoporus of clamping rings is coordinated with sealing rubber plug, makes clamping rings, packer ring and sealing rubber plug can
Sealing surface is formed in the inner cavity of drainpipe, the oil in drainpipe is carried out all to be replaced as water, and can be after replacement completion
The apparent water surface is seen in the drainpipe of emergency drainage device, after restoring water seal, the pasta discord air contact in drainpipe,
Eliminate the security risk of storage tank；In addition, by the way that the rotatable middle and lower part for being sleeved on connecting rod of annulus will be supported, not only make first tight
Gu Quan is moved up and down with the second tight loop along the screw rod of horizontal rotation, realizes moving up and down for sealing rubber plug, and
It also avoids sealing rubber plug to be detached from from the circular hole of support annulus, is conducive to carry the water seal recovery device out of drainpipe
Go out, save operating time and manpower, reduces storage tank and run the security risk brought.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of emergency drainage device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of water seal recovery device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of swirl reducting baffle provided in an embodiment of the present invention.
Wherein, as follows to each label declaration in attached drawing：
1 connecting rod, 101 third annulus, 102 the 4th annulus；
2 support annulus；
3 supporting rods；
4 clamping rings, the endoporus of 401 clamping rings；
5 packer rings；
6 screw rods；
7 sealing rubber plugs；
8 first tight loops；
9 second tight loops；
10 swirl reducting baffles, 1,001 first annulus, 1,002 second annulus, 1003 links；
11 first retainer plates；
12 bolts；
13 extension rods, 1301 handles；
14 lids；
15 filter bowls；
16 sealing rings；
17 drainpipes；
18 water sealed tanks, the top aperture of 1801 water sealed tanks；
19 floats；
20 floating plates；
21 External floating roof tanks.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
On the one hand, an embodiment of the present invention provides a kind of water seal recovery devices of external floating roof tank emergency drainage device, such as
Shown in Fig. 2, which includes：Connecting rod 1；It is sleeved on the support annulus 2 of the middle and lower part of connecting rod 1, and connecting rod 1 can
It is rotated horizontally along the inner wall of support annulus 2；With the support multiple supporting rods 3 connected vertically of annulus 2；With supporting rod 3
The clamping rings 4 of lower end connection；The packer ring 5 being connect with clamping rings 4；The spiral shell being connect with the lower end of connecting rod 1
Bar 6；The sealing rubber plug 7 being connect with the lower end of screw rod 6, sealing rubber plug 7 are located between support annulus 2 and clamping rings 4,
And the maximum gauge of sealing rubber plug 7 is more than the internal diameter of clamping rings 4；Positioned at the upper and lower surface of sealing rubber plug 7 and respectively with
The first tight loop 8 and the second tight loop 9 of the lower end spiral connection of screw rod 6；Connect between sealing rubber plug 7 and supporting rod 3
The swirl reducting baffle 10 connect.
The operation principle of the water seal recovery device is described below.
To restore emergency drainage device water seal effect, need by script be located at emergency drainage device drainpipe 17 with
Oil in water sealed tank 18 is all replaced as water, after the oil in water sealed tank 18 is all replaced as water, by the water in sealing state
Recovery device (i.e. the endoporus 401 of the sealing of sealing rubber plug 7 clamping rings) is sealed to be inserted into the drainpipe 17 of emergency drainage device simultaneously
Water filling, since clamping rings 4, packer ring 5 and sealing rubber plug 7 form sealing surface in the inner cavity of drainpipe 17 so that
Pasta and the water surface of the sealing surface in drainpipe 17 form baffle, i.e. the top of the sealing surface is water, lower part is oil；Work as water seal
When the sealing surface of recovery device reaches the bottom of drainpipe 17, be rotatably connected bar 1, so that sealing rubber plug 7 is moved up until leaving solid
Determine the endoporus 401 of annulus, and then sealing surface is made to be connected, the water seal recovery device is then proposed that drainpipe 17, water will pass through
The endoporus 401 of clamping rings stays in drainpipe 17, without being moved up with the water seal recovery device, when emergency drainage device leaves
When drainpipe 17, the oil in drainpipe 17 is all replaced as water, and then reaches the water seal purpose for restoring sentinel plant.
Wherein, moving up and down for sealing rubber plug 7 is to rely on 7 first tight loop upper and lower surfaces of of sealing rubber plug
8 and second tight loop 9 movement and realize, specially：When horizontal rotation (cannot be upper and lower counterclockwise or clockwise for connecting rod 1
It is mobile) when, sealing rubber plug 7, the first tight loop 8 and the second tight loop 9 first can first be done by a small margin with connecting rod 1 as a whole
Ground rotates horizontally, and then sealing rubber plug 7 is not just being rotated due to being fixed on supporting rod 3 by swirl reducting baffle 10, and position
Screw rod 6 in 1 lower end of connecting rod continues to rotate, to keep the first tight loop 8 and second being connect with the progress of screw rod 6 spiral tight
Admittedly circle 9 is moved up and down along the screw thread of connecting rod 1, and then drives moving up and down for sealing rubber plug 7, final to realize sealing rubber
Rubber plug 7 seals or leaves the endoporus 401 of clamping rings.
It will be appreciated by those skilled in the art that both in order to make clamping rings 4, packer ring 5 and sealing rubber plug 7 exist
Sealing surface is formed in the inner cavity of drainpipe 17, and in order to make the water seal recovery device being located in 17 inner cavity of drainpipe be in static shape
State makes sealing rubber plug 7 be moved up and down convenient for rotatable connection bar 1, therefore the outer diameter of packer ring 5 should be greater than drainpipe 17
Internal diameter, and the outer diameter of packer ring 5 should be greater than the outer diameter of clamping rings 4, enable 5 fully deformed of packer ring so that with
The inner wall of drainpipe 17 is fitted closely.In addition, the maximum gauge of sealing rubber plug 7 should be greater than the internal diameter of clamping rings 4, and
The minimum diameter of sealing rubber plug 7 is less than the internal diameter of clamping rings 4, makes sealing rubber plug 7 that can securely be embedded into clamping rings
In endoporus 401, the purpose for the endoporus 401 that clamping rings is fully sealed is had reached.
As it can be seen that by the way that clamping rings 4 and packer ring 5 are attached and by the lower end of screw rod 6 and sealing rubber
Rubber plug 7 is attached, and the endoporus 401 of clamping rings is coordinated with sealing rubber plug 7, makes clamping rings 4, packer ring
5 can form sealing surface with sealing rubber plug 7 in the inner cavity of drainpipe 17, and the oil in drainpipe 17 be all replaced as
Water, and can see the apparent water surface in the drainpipe 17 of emergency drainage device after replacement completion, after restoring water seal, drainpipe
Pasta discord air contact in 17, eliminates the security risk of storage tank；In addition, by the way that the 2 rotatable company of being sleeved on of annulus will be supported
The middle and lower part of extension bar 1 not only makes the first tight loop 8 be moved up and down along the screw rod 6 of horizontal rotation with the second tight loop 9, realizes
The moving up and down of sealing rubber plug 7, and also avoid sealing rubber plug 7 and be detached from from the circular hole of support annulus 2, favorably
It is proposed out of drainpipe 17 in by the water seal recovery device, saves operating time and manpower, reduce what storage tank operation was brought
Security risk.
As described in above-described embodiment, swirl reducting baffle 10 is to avoid sealing rubber plug 7 for fixing seal rubber stopper 7 with even
Extension bar 1 rotates together with, wherein there are many structures of swirl reducting baffle 10, and the present embodiment does not do specifically the structure of swirl reducting baffle 10
Limitation, can effective fixing seal rubber stopper 7, such as the structure of swirl reducting baffle 10 in the present embodiment is as shown in Figure 3：This is anti-
Rotation baffle 10 by the first annulus 1001, the second annulus 1002 and is connected between the first annulus 1001 and the second annulus 1002
Link 1003 forms；First annulus 1001 is sleeved on the outside of supporting rod 3, and the second annulus 1002 is sleeved on the outside of screw rod 6, and
Two annulus 1002 are fixed between the first tight loop 8 and the sealing rubber plug 7.As it can be seen that this structure is not only convenient for connecting,
It is easy to process.
Further, as shown in Fig. 2, for the ease of replacing swirl reducting baffle 10, the upper end of the supporting rod 3 in the present embodiment
Portion is connected by screw bolts mode and carries out vertical connection with support annulus 2, and specific connection type is：The upper end of supporting rod 3 passes through
Support annulus 2 is simultaneously threadedly coupled with positioned at support 2 nut upper and lower surfaces of of annulus respectively.When the upper end of supporting rod 3 with
It, can be first by the second of swirl reducting baffle 10 if being replaced to swirl reducting baffle 10 after support annulus 2 is attached using aforesaid way
Annulus 1002 is disassembled from screw rod 6, is then again disassembled support annulus 2 from supporting rod 3, and above put forward connecting rod 1,
The swirl reducting baffle 10 being sleeved on supporting rod 3 can finally be replaced.Wherein, in order to reduce support annulus 2 processing and life
The time is produced, support annulus 2 can be chosen for flange.
Further, in practical operation, support annulus 2 is sleeved on the middle and lower part of connecting rod 1 and makes connecting rod 1 can only edge
The inner wall for support annulus 2 rotated horizontally and the realization method that cannot move up and down there are many, it is preferable that as shown in Fig. 2,
The middle and lower part of connecting rod 1 in the present embodiment is welded with third annulus 101 and the 4th annulus 102, and third annulus 101 is located at support
The upper surface of annulus 2, the 4th annulus 102 are located at the lower surface of support annulus 2, and third annulus 101 and the 4th annulus 102 outside
Diameter is more than the internal diameter of support annulus 2, i.e., support annulus 2 is stuck between third annulus 101 and the 4th annulus 102, this is allowed for
Connecting rod 1 can only be rotated horizontally along the inner wall of support annulus 2 and cannot be moved up and down；Moreover, this connection type is convenient for
Installation, such as can third annulus 101, support annulus 2 and the 4th disk 102 be first sleeved on the outer of 1 middle and lower part of connecting rod successively
Then third disk 101 and the 4th disk 102 are welded on the outside of the middle and lower part of connecting rod 1 by side respectively again.
Further, in practical operation, in order to can packer ring 5 easy to install and replace and more securely
Fixing seal rubber ring 5, as shown in Fig. 2, the packer ring 5 in the present embodiment be located at the lower surface of clamping rings 4 and with it is solid
Determine annulus 4 to be attached, and the lower surface of packer ring 5 is connected with the first retainer plate 11.It is of course also possible to make caulking gum
Ring 5 is located at the upper surface of clamping rings 4 and is attached with clamping rings 4, and the upper surface of packer ring 5 is connected with first
Retainer plate 11.It will be appreciated by persons skilled in the art that tight in order to enable the inner wall of packer ring 5 and drainpipe 17 to carry out
The outer diameter of closely connected conjunction, the first retainer plate 11 should be less than the outer diameter of packer ring 5, to not influence the deformation of packer ring 5.
Further, as shown in Fig. 2, spiral shell can be used between clamping rings 4, packer ring 5 and the first retainer plate 11
Bolt 12 is attached, i.e., bolt 12 sequentially passes through the first retainer plate 11, packer ring 5 and clamping rings 4, then in bolt 12
Nut is tightened to be fastened to clamping rings 4, packer ring 5 and the first retainer plate 11 in upper end.It is connected by screw bolts
Mode is not only convenient for installing packer ring 5 and the first retainer plate 11 on clamping rings 4, also allows for replacing packer ring 5.
Preferably, clamping rings 4 can be flange, because the structure of flange itself can meet circumference of the bolt 12 on flange
Circular hole (i.e. along the circumferentially disposed multiple small sircle holes of flange) to be attached to packer ring 5 and the first retainer plate 11,
When water seal recovery device can be made to be proposed from drainpipe 17, water can be flowed out from the medium pore of flange and is retained in drainpipe 17,
And then the oil in drainpipe 17 is all replaced into water, in addition flange is also the common part in this field, is easy to use.Further
Ground will pass through the circumference circular hole on flange due to bolt 12, this allows for the lower end of supporting rod 3 when clamping rings 4 is flange
Portion can be attached with positioned at the part between the circumferential circular hole and central circular hole of flange, and for the ease of by supporting rod 3
It is attached with clamping rings 4, the lower end of the supporting rod 3 in the present embodiment is connected using welding manner with clamping rings 4
It connects, welding connecting mode is not only connected firmly, but also is also convenient for operating.
Wherein, there are many shapes of sealing rubber plug 7, preferably, the outer diameter of the sealing rubber plug 7 in the present embodiment by
Up to lower gradual increase, i.e. the section of sealing rubber plug 7 is trapezoidal, and the maximum gauge of sealing rubber plug 7 is more than clamping rings 4
Internal diameter and sealing rubber plug 7 minimum diameter be less than clamping rings 4 internal diameter, in this way setting sealing rubber plug 7 shape not
Only it is convenient for the lower part of sealing rubber plug 7 being more firmly built into the endoporus 401 of clamping rings, and also improves sealing
Rubber stopper 7 is bonded tightness degree with the inner wall of clamping rings 4.
Preferably, as shown in Fig. 2, the upper end spiral of connecting rod 1 is connected with extension rod 13, water seal can not only be made extensive
The sealing surface of apparatus for coating can reach the bottom of drainpipe 17, and also allow for carrying the water seal recovery device.In addition, for the ease of
The upper end of extension rod 13 and connecting rod 1 is carried out spiral to connect and be rotatably connected bar 1, it can be along the circumferential equal of extension rod 13
It is even to weld multiple handles 1301.It should be noted that in order to not influence the rotation of connecting rod 1, i.e., sealing rubber plug 7 is not influenced
It moves up and down, the hand of spiral of extension rod 13 is with the hand of spiral of screw rod 6 on the contrary, such as the present embodiment can rotate clockwise and prolong
Packer ring 5 in water seal recovery device in sealing state far from clamping rings 4, and is rotated clockwise and is prolonged by stock 13
Stock 13 can make the connection between extension rod 13 and connecting rod 1 more and more secured, so as to avoid packer ring 5 is separate solid
While determining annulus 4, the lower end of extension rod 13 is detached from from the upper end of connecting rod 1；And in practical operation, for the ease of behaviour
Make, can be before water seal recovery device be inserted into drainpipe 17, sealing rubber plug 7 is embedded into fixed circle by the bar 1 that is first rotatably connected
In the endoporus 401 of ring, then fixed connecting rod 1 makes it be connect with the progress of extension rod 13 spiral again.
On the other hand, an embodiment of the present invention provides a kind of water seal restoration methods of external floating roof tank emergency drainage device,
This approach includes the following steps：
A, into drainpipe 17, injection stands the predetermined time later more than the water of the design water injection rate of emergency drainage device；
B, water seal recovery device is inserted into the drainpipe 17 until close to the pasta in drainpipe 17, then to draining
Water filling in pipe 17, the wherein sealing rubber plug 7 of water seal recovery device seal clamping rings 4；
C, when the water surface in drainpipe 17 is higher than pasta preset distance, slowly water seal recovery device is transferred until the row of arrival
The bottom of water pipe 17；
D, rotatable connection bar 1 makes sealing rubber plug 7 move up until sealing rubber plug 7 leaves clamping rings 4；
E, slowly upwards then lifting water seal recovery device stops water filling up to leaving drainpipe 17.
Wherein, in step a, in drainpipe 17 before injection water, the lid 14 of emergency drainage device should be opened, dismounting is close
The float 19 in drainpipe 17 is taken out in seal 16.Further, design of the injection more than emergency drainage device into drainpipe 17
The water of water injection rate is in order to which the oil in water sealed tank 18 is replaced as water, and principle is：The water injected into drainpipe 17, due to not
It is dissolved in oil and bottom that is bigger than the density of oil and entering water sealed tank 18, with the increase of injected water volume, the water in water sealed tank 18
It is more and more, and the oil being positioned above is squeezed to External floating roof tank 21, when the inside of water sealed tank 18 is all water, water seal
Oil inside slot 18 is all cemented out by water, and the oil inside drainpipe 17 is always situated in the inside of drainpipe.If no
Into drainpipe 17, injection directly starts to execute step b more than the water of the design water injection rate of emergency drainage device, it will causes
Water sealed tank 18 still has oil, because when sealing recovery device and reaching the bottom of drainpipe 17, the oil of water sealed tank 18 enters outer entirely
In floating roof tank 21, and the oil in drainpipe 17 enters in water sealed tank 18, even if the oil of drainpipe 17 is at this moment replaced as water,
Since the density of oil is less than the density of water, the water in water sealed tank 18 will enter in drainpipe 17, keep the pasta of drainpipe 17 direct
It is contacted with air, does not have water seal effect.
It should be noted that in practical operation, drainpipe 17 of the straight stream nozzle to emergency drainage device is usually used
Interior injection water, this water that may result in into 18 bottom of water sealed tank carry a small amount of oil, in order not to allow oil level in water sealed tank 18,
According to knowhow, the oil being located in water sealed tank 18 should be made to float on upper in water sealed tank 18 the static 10min of emergency drainage device
Portion equally also has minimal amount of oil to float on the top of drainpipe 17, when sealing the bottom of recovery device arrival drainpipe 17, position
Oil in the top in water sealed tank 18, which can be squeezed, to be entered in External floating roof tank 21.
In step c, according to knowhow, when the water surface in drainpipe 17 is higher than the pasta 50cm or so in drainpipe 17
When, slowly water seal recovery device is transferred until reaching the bottom of drainpipe 17.Wherein, slowly decentralization water seal recovery device be in order to
It makes way for after the oil in drainpipe 17 enters the bottom of water sealed tank 18, since its density is less than the density of water, and capable of fully floating
To the top of water sealed tank 18, then moving down and enter in External floating roof tank 21 with water seal recovery device again, therefore, work as water seal
When recovery device reaches the bottom of drainpipe 17, the oil in drainpipe 17 has enter into External floating roof tank 21.
Since drainpipe 17 is welded by the tubing string of different inner diameters, in order to ensure the water surface in drainpipe 17 always above
Pasta 50mm or so should continue the water filling into drainpipe 17 during transferring water seal recovery device.
In step d, rotatable connection bar 1 make sealing rubber plug 7 move up until sealing rubber plug 7 leave clamping rings 4, be
In order to which clamping rings 4, packer ring 5 and water of the sealing rubber plug 7 on the sealing surface that drainpipe 17 is formed are passed through fixation
The endoporus 401 of annulus and the inside for entering drainpipe 17, and then the oil in drainpipe 17 is replaced as water.In the process,
It should continue the water filling into drainpipe 17, ensure the water surface in drainpipe 17 higher than pasta 50mm or so.
After completing the procedure, it should check that the liquid level in drainpipe 17 is pasta or the water surface, if pasta and have
If a large amount of oil, above-mentioned steps a to step e is continued to execute, until being all water in drainpipe 17.
As it can be seen that the water seal restoration methods of external floating roof tank emergency drainage device provided in an embodiment of the present invention, can not only have
Oil in emergency drainage device is all replaced as water by effect, restores water seal resistance；And also allow for operating, when saving a large amount of
Between, it eliminates storage tank and runs the security risk brought.
The alternative embodiment that any combination forms the disclosure may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
The above is merely for convenience of it will be understood by those skilled in the art that technical scheme of the present invention, not limiting
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of water seal recovery device of external floating roof tank emergency drainage device, which is characterized in that the water seal recovery device packet
It includes:
Connecting rod (1)；
It is sleeved on the support annulus (2) of the middle and lower part of the connecting rod (1), and the connecting rod (1) is along the support annulus (2)
Inner wall rotated horizontally；
With the support annulus (2) multiple supporting rods (3) connected vertically；
The clamping rings (4) being connect with the lower end of the supporting rod (3)；
The packer ring (5) being connect with the clamping rings (4)；
The screw rod (6) being connect with the lower end of the connecting rod (1)；
The sealing rubber plug (7) being connect with the lower end of the screw rod (6), the sealing rubber plug (7) are located at the branch and hold round
Between ring (2) and the clamping rings (4), and the maximum gauge of the sealing rubber plug (7) is more than the clamping rings (4)
Internal diameter；
First connect respectively positioned at the upper and lower surface of the sealing rubber plug (7) and with the lower end spiral of the screw rod (6)
Tight loop (8) and the second tight loop (9)；
The swirl reducting baffle (10) connected between the sealing rubber plug (7) and the supporting rod (3).
2. water seal recovery device according to claim 1, which is characterized in that the swirl reducting baffle (10) is by the first annulus
(1001), the second annulus (1002) and the company being connected between first annulus (1001) and second annulus (1002)
Connect frame (1003) composition；
First annulus (1001) is sleeved on the outside of the supporting rod (3), and second annulus (1002) is sleeved on the screw rod
(6) outside, and second annulus (1002) is fixed between first tight loop (8) and the sealing rubber plug (7).
3. water seal recovery device according to claim 2, which is characterized in that the upper end of the supporting rod (3) passes through institute
It states support annulus (2) and is connect respectively with positioned at the support annulus (2) nut progress spiral upper and lower surfaces of.
4. water seal recovery device according to claim 1, which is characterized in that the middle and lower part of the connecting rod (1) is welded with
Third annulus (101) and the 4th annulus (102), the third annulus (101) are located at the upper surface of the support annulus (2), institute
State the lower surface that the 4th annulus (102) is located at the support annulus (2), and the third annulus (101) and the 4th annulus
(102) outer diameter is more than the internal diameter of the support annulus (2).
5. water seal recovery device according to claim 1, which is characterized in that the packer ring (5) is located at described solid
Determine the lower surface of annulus (4), and the lower surface of the packer ring (5) is connected with the first retainer plate (11), and the fixation
It is attached using bolt (12) between annulus (4), the packer ring (5) and first retainer plate (11).
6. water seal recovery device according to claim 5, which is characterized in that the clamping rings (4) is flange.
7. water seal recovery device according to claim 6, which is characterized in that the lower end of the supporting rod (3) is using weldering
Mode is connect to be attached with the clamping rings (4).
8. water seal recovery device according to claim 1, which is characterized in that the outer diameter of the sealing rubber plug (7) is by upper
It is gradually reduced under.
9. according to claim 1-8 any one of them water seal recovery devices, which is characterized in that the upper end of the connecting rod (1)
Portion's spiral is connected with extension rod (13), and along the multiple handles of circumferential uniform welding (1301) of the extension rod (13).
10. a kind of water seal restoration methods of external floating roof tank emergency drainage device, which is characterized in that the method is wanted using right
It asks the water seal recovery device described in 1 to implement, the described method comprises the following steps：
A, into drainpipe (17), injection stands the predetermined time later more than the water of the design water injection rate of emergency drainage device；
B, water seal recovery device is inserted into the drainpipe (17) until close to the pasta in the drainpipe (17), then to
The interior water filling of the drainpipe (17), wherein sealing rubber plug (7) the sealing clamping rings (4) of the water seal recovery device；
C, when the water surface in the drainpipe (17) be higher than pasta preset distance when, slowly transfer the water seal recovery device until
Reach the bottom of the drainpipe (17)；
D, rotatable connection bar (1) makes the sealing rubber plug (7) move up until the sealing rubber plug (7) leaves the fixed circle
Ring (4)；
E, the water seal recovery device is slowly lifted upwards until leaving the drainpipe (17), then stop water filling.
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|---|---|---|---|
| CN201710136593.8A CN108569487B (en) | 2017-03-08 | 2017-03-08 | Water seal recovery device and method for emergency drainage device of external floating roof oil tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136593.8A CN108569487B (en) | 2017-03-08 | 2017-03-08 | Water seal recovery device and method for emergency drainage device of external floating roof oil tank |
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| CN108569487B CN108569487B (en) | 2023-08-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453216A (en) * | 2020-04-28 | 2020-07-28 | 安徽实华工程技术股份有限公司 | Height-adjustable floating roof strut with wedge surface sealing structure |
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| CN111453216B (en) * | 2020-04-28 | 2024-06-11 | 安徽实华工程技术股份有限公司 | Height-adjustable floating roof support with wedge surface sealing structure |
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| CN108569487B (en) | 2023-08-22 |
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