CN201259025Y - Sealing device for buried pipe protection well - Google Patents
Sealing device for buried pipe protection well Download PDFInfo
- Publication number
- CN201259025Y CN201259025Y CNU2008200752003U CN200820075200U CN201259025Y CN 201259025 Y CN201259025 Y CN 201259025Y CN U2008200752003 U CNU2008200752003 U CN U2008200752003U CN 200820075200 U CN200820075200 U CN 200820075200U CN 201259025 Y CN201259025 Y CN 201259025Y
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- Prior art keywords
- outer sleeve
- well
- seal arrangement
- guide
- sleeve
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- Expired - Lifetime
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Abstract
The utility model relates to a seal device of a buried pipeline used to connect a protection well; an outer bushing and a wall through hole of the protection well are sealed and fixed; an inner bushing and the outer bushing are in clearance fit and are provided with an 'O'-shaped seal ring; a transition connection pipe fixedly connected with the inner bushing is arranged in the inner bushing; one end of the transition connection pipe is connected with the outer side buried pipeline of the protection well; and the other end is connected with the inner side pipeline of the protection well. The seal device is an integral part so as to be convenient to be mounted and used; and seal pieces are not easy to loss effect. The utility model can be broadly applied to the through holes needing to prevent water and leakage of various protection wells, valve wells, checking operation wells, basement wall bodies, underwater wall bodies, pool wall bodies or the shells of seal devices, and has the excellent advantages of simple structure, convenient use, as well as reliable leakage-preventing effect.
Description
Technical field
The utility model belongs to seal arrangement, particularly relates to the seal arrangement that a kind of buried pipe connects anti-guide-well.
Background technique
In the buried pipe system, various control valves, metrical instrument etc. all are provided with the anti-guide-well of avoiding groundwater erosion, and its borehole wall is built by brick or cement and constituted.
Buried pipe system construction code requirement is prevented guide-well and enters between the buried pipe of preventing guide-well good water-stop must be set, and prevents that underground water from infiltrating anti-guide-well from the joint gap of the borehole wall and pipeline.
In the existing construction and installation technology, adopt gum sleeve and immersion oil asbestos packing to constitute water-stop usually, gum sleeve pastes multiple pipeline via hole hole wall in anti-guide-well, and the immersion oil asbestos packing is arranged between buried pipe and the gum sleeve.
The sealing effect of above-mentioned water-stop is relatively poor, and main performance is: the corrosion of immersion oil asbestos packing easily hydrolyzed makes effective sealing time shorter.Particularly carry under the operating mode of high temperature media at buried pipe, the immersion oil composition of immersion oil asbestos packing is volatilized gradually and is made its hydrolysis corrosion aggravation, and it is shorter to cause effectively sealing the time.Buried pipe will reciprocal axial displacement inevitably occur because of expanding with heat and contract with cold under aforementioned conveying high temperature media operating mode, make above-mentioned stuffing box packing its inefficacy occur becoming flexible and quickening in the hydrolysis corrosion.
In addition, the similar water-stop of a kind of and aforementioned water sealing device mechanism is made of steel sleeve pipe and packing.Above-mentioned water-stop mechanism is in the process that packing lost efficacy gradually, and not only the deleterious of water-stop also will cause the corrosion of steel bobbin seal face, has more increased the difficulty of maintenance.Equally, above-mentioned water-stop mechanism can not avoid the loosening seal failure that is caused of packing that the axial displacement because of buried pipe causes.
The model utility of notification number CN2630604 " pipeline antiseepage sleeve pipe through walls ", disclose a kind of for solving the technological scheme that existing pipeline antiseepage sleeve pipe through walls corrosion resistant performance is poor, working life is short, be equipped with pressure cap between its pipeline and sleeve pipe, the some materials of clamping are the packing of teflon between the card platform in pressure cap and the sleeve pipe, and pressure cap and preburied iron part fix.The technological scheme of above-mentioned " pipeline antiseepage sleeve pipe through walls ", though have positive role for improving antiseepage sleeve pipe rotproofness, but there is the defective of owing tight that engages between pipeline rough surface and the teflon packing, particularly also exists above-mentioned sealing configuration inconvenience to cooperate the outstanding problem of installation with buried pipe.
Summary of the invention
The utility model is to propose a kind of buried pipe in order to solve the relatively poor technical problem of existing anti-guide-well and the watertight construction sealing effect between the buried pipe to be connected the seal arrangement of preventing guide-well.
The utility model is taked following technological scheme for achieving the above object: this seal arrangement comprises flange and is sealingly fastened in the outer sleeve of anti-guide-well borehole wall via hole, described outer sleeve is provided with the inner sleeve with its Spielpassung, described inner sleeve is provided with " 0 " the shape seal ring that constitutes sealing pair with the outer sleeve inner wall smooth section, be provided with the transition connecting tube of fixedlying connected in the described inner sleeve with it, its joint is that sealing connects, described transition connecting tube one end is connected in anti-guide-well outside buried pipe, and the other end is connected in anti-guide-well inside pipeline.
The utility model can also be taked following technical measures:
Described outer sleeve surface is provided with and makes it be fixed in the anchor dish of anti-guide-well via hole.
Described outer sleeve one end is provided with and makes its flange plate that is fixed in anti-guide-well via hole end edge, is provided with sealing gasket between flange plate and the mistake nose end edge.
Described outer sleeve one end is provided with and makes it be fixed in the flange plate on anti-guide-well via hole end edge, is provided with expanding cement or cement mortar stuffing box packing between outer sleeve and the via hole.
The corresponding flange plate that is connected that is provided with inner sleeve one end in described transition connecting tube surface is provided with sealing gasket between two flange plate.
Be provided with the support filler between described inner sleeve and its pairing transition connecting tube, the inner sleeve internal surface is provided with to make and supports filler and the isolated sheathed casing of outer sleeve.
Be provided with stuffing box packing between described outer sleeve and the sheathed casing.
Described outer sleeve is provided with the undergauge section that is connected in the transition connecting tube.
The described inner sleeve surface that is equivalent to the anti-guide-well borehole wall is provided with its axial displacement length graticule, and this length graticule is made of "+" "-" length groove of " 0 " and both sides thereof, is the reading benchmark with outer sleeve respective end edge.
The beneficial effects of the utility model and advantage are: the outer sleeve of this seal arrangement is sealingly fastened in the anti-guide-well borehole wall, or various valve well, checked operation well, basement wall, body of wall, pool wall body of wall or water-tight equipment housing etc. need the hole of passing through of waterproof, seepage control under water.The inner sleeve of this seal arrangement is fixedlyed connected with the transition connecting tube on the one hand, and on the other hand with the outer sleeve Spielpassung, and matching gap is sealed by sealing configuration.Inner sleeve and be installed on the sealing configuration of inner sleeve can be with the same moved further of transition connecting tube that axial displacement takes place because sealing configuration adopts " O " shape rubber seal that can adapt to axial displacement, so the sealing configuration of this seal arrangement is difficult for losing efficacy.This seal arrangement is a complete sealing component, with can be connected with outer pipeline or equipment by the transition connecting tube two ends of this device after the aforementioned borehole wall or other analog installation, Placement can select of the prior art any one all can, therefore, this Unit Installation is very easy to use, also is convenient to adjust and safeguard.Prove that through comparative trial this device compares with the watertight construction of gum sleeve or metal sleeve and immersion oil asbestos packing formation, its effective antiseepage sealing time, the former was more than 2 times of the latter at least.Concrete experimental condition is: at same thermoelectricity plant central heat supply pipe network, water is heat transfer medium, supply water temperature, pressure of supply water, return water temperature, pressure of return water are suitable, comparative trial platform, tricks are identical, test group uses none that seepage takes place through 3 heat supply phases, the first heat supply phase of control group, the seepage number took place, and to account for test several 20%, and all the other in the second heat supply phase seepage take place successively.The utlity model has outstanding advantage simple in structure, easy to use, that leakage proof is reliable for effect.
Description of drawings
Accompanying drawing 1 is the utility model embodiment 1 structure semi-section schematic representation.
Accompanying drawing 2 is two generalized sections of outer sleeve structure.
Accompanying drawing 3 is three generalized sections of outer sleeve structure.
Accompanying drawing 4 is four generalized sections of outer sleeve structure.
Accompanying drawing 5 is the utility model embodiment 2 structure semi-section schematic representation.
Accompanying drawing 6 is the utility model embodiment 3 structure semi-section schematic representation.
Number in the figure: 1 outer sleeve, 1-1 anchor dish, 1-2 groove, the 1-3 flange plate, 1-4 undergauge section, 2 inner sleeves, 2-1 " O " shape seal ring, 2-2 drive flange, 3 transition connecting tubes, the 3-1 mounting flange, 4 anti-guide-wells, 5 apparatus casings, 6 support filler, 7 sheathed casings, 8 stuffing box packing, 9 axial displacement length graticules.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Be fixed in anti-guide-well via hole for embodiment's 1 outer sleeve 1 and also can adopt mode shown in Figure 2, be that outer sleeve 1 one ends are provided with and make it be fixed in the flange plate 1-3 on anti-guide-well via hole end edge, be provided with the sealing gasket (not shown) between flange plate and the mistake nose end edge, or be provided with expanding cement or cement mortar stuffing box packing (not shown) between outer sleeve 1 and the via hole.
Can adopt mode shown in Figure 3 for embodiment's 1 outer sleeve 1 and the fixing of apparatus casing via hole, promptly the flange plate 1-3 of outer sleeve 1 is fixed in apparatus casing 5 nose end edge excessively, should make encapsulation process between clamping bolt and the apparatus casing 5, for example glue envelope, full weld etc.
Can also adopt mode shown in Figure 4 for embodiment's 1 outer sleeve 1 and the fixing of apparatus casing via hole, i.e. the anchor dish 1-1 of outer sleeve 1 and apparatus casing via hole edge welding is fixing, and its weld bond is a full weld.
Among Fig. 4, the fixing of the anchor dish 1-1 of outer sleeve 1 and apparatus casing via hole edge also can be selected corresponding means of fixation and be tightly connected according to the material of apparatus casing.For example apparatus casing 5 all adopts plastic material with anchor dish 1-1, and then both adopt hot melt or bonding way to fix and be tightly connected.
Among the embodiment 1, the relevant national standard that connects joint socket Connecting format in the series according to pipeline is selected the specification of " O " shape seal ring 2-1, and the matching gap between definite outer sleeve 1 and the inner sleeve 2, to guarantee its support strength and sealing effect.The buried pipe axial displacement is determined the quantity of " O " shape seal ring 2-1 according to the weight of buried pipe and in using, and universal law is the big weight of buried pipe, high displacement, quantity that should corresponding increase " O " shape seal ring.Embodiment 1 is provided with two " O " shape seal rings arranged side by side, can satisfy the needs of various heating power buried pipes generally fully.
Among Fig. 1, be provided with transition connecting tube 3 in the inner sleeve 2, and be connected and fixed, be provided with sealing gasket between two flange plate by the mounting flange 3-1 on corresponding transition connecting tube surface and the drive flange 2-2 of inner sleeve one end.Embodiment 1 two flange plate are connected and fixed by bolt.
Be provided with between inner sleeve 2 and its pairing transition connecting tube 3 and support filler 6, inner sleeve 2 internal surfaces are provided with to make and support the isolated sheathed casing 7 of filler 6 and outer sleeve 1.
Be provided with stuffing box packing 8 between the diagram right output port place of outer sleeve 1 and the sheathed casing 7.
Among the embodiment 2, support filler 6 between inner sleeve 2 and its pairing transition connecting tube 3 can alleviate inner sleeve 2 one sides unsettled lay particular stress on phenomenon, therefore supporting filler 6 should adopt hard filler, and for example plastic honeycomb type piece also can adopt high density polyurethane foam type piece.Adopt high density polyurethane foam type piece also to have function of heat insulation.The setting of sheathed casing 7 is to come in contact or adhesion with outer sleeve 1 in order to prevent to support filler 6, and the generation of contact or adhesion will influence moving axially of inner sleeve 2, so the length of sheathed casing 7 will exceed pairing outer sleeve 1 port.Sheathed casing 7 can select for use materials such as glass fibre reinforced plastics or PVC plastics to make.
Among the embodiment 2, the stuffing box packing 8 between outer sleeve 1 and the sheathed casing 7 is in order to prevent that foreign material such as sand, earth from entering between outer sleeve 1 and the inner sleeve 2 and influence sealing effect.Stuffing box packing 8 can be used general immersion oil asbestos packing.
Be provided with between inner sleeve 2 and its pairing transition connecting tube 3 and support filler 6, inner sleeve 2 internal surfaces are provided with to make and support the isolated sheathed casing 7 of filler 6 and outer sleeve 1.
It is the cutting when being convenient to keep in repair and reserve the cutting surplus that embodiment 3 selects the mounting flange 3-1 of band neck formula for use.
Embodiment 4 as shown in Figure 7, are the axial displacement length graticules 9 that increases inner sleeve 2 surfaces on Fig. 1 embodiment's basis, and this length graticule is made of "+" "-" length groove of " 0 " and both sides thereof, is the reading benchmark with outer sleeve 1 respective end edge.
The setting of axial displacement amount length graticule 9 is in order to grasp the position of inner sleeve 2 with respect to outer sleeve 1 when this seal arrangement is installed among the embodiment 4, when outer sleeve 1 respective end along with length graticule " 0 " when groove aligns, sealing pair is in the neutral position between effective seal area between inner sleeve 2 and the outer sleeve 1, can move axially the correct position of the needs adjustment inner sleeve 2 of rule with respect to outer sleeve 1 according to buried pipeline.
More than each embodiment's outer sleeve 1, inner sleeve 2 and sheathed casing 7 all can to adopt with synthetic resin be that Bond, composite fiber are that the composite material that reinforcing material is made is glass fiber reinforced plastic processing, also can adopt as the processing of plastic materials such as PVC, PPR, the corrosion resistance of this seal arrangement is strengthened greatly.If above-mentioned parts adopt easy rusty gold to belong to materials processing, its surface should be done antirust, anti-corrosive and be handled.
More than each embodiment can be applied to various valve wells, checked operation well, basement wall, under water body of wall, pool wall body of wall or water-tight equipment etc. need waterproof, seepage control pass through the sealing occasion.Be not only applicable to carry the buried pipeline of general medium, be particularly useful for carrying the buried pipeline of high temperature media.
Claims (9)
1, the seal arrangement of buried pipe connected with protective well, comprise flange and be sealingly fastened in the outer sleeve of preventing guide-well borehole wall via hole, it is characterized in that: described outer sleeve is provided with the inner sleeve with its Spielpassung, described inner sleeve is provided with " O " shape seal ring that constitutes sealing pair with the outer sleeve inner wall smooth section, be provided with the transition connecting tube of fixedlying connected in the described inner sleeve with it, its joint is that sealing connects, described transition connecting tube one end is connected in anti-guide-well outside buried pipe, and the other end is connected in anti-guide-well inside pipeline.
2, seal arrangement according to claim 1 is characterized in that: described outer sleeve surface is provided with and makes it be fixed in the anchor dish of anti-guide-well via hole.
3, seal arrangement according to claim 1 is characterized in that: described outer sleeve one end is provided with and makes its flange plate that is fixed in anti-guide-well via hole end edge, is provided with sealing gasket between flange plate and the mistake nose end edge.
4, seal arrangement according to claim 1 is characterized in that: described outer sleeve one end is provided with and makes it be fixed in the flange plate on anti-guide-well via hole end edge, is provided with expanding cement or cement mortar stuffing box packing between outer sleeve and the via hole.
5, seal arrangement according to claim 1 is characterized in that: the corresponding flange plate that is connected that is provided with inner sleeve one end in described transition connecting tube surface is provided with sealing gasket between two flange plate.
6, seal arrangement according to claim 1 is characterized in that: be provided with the support filler between described inner sleeve and its pairing transition connecting tube, the inner sleeve internal surface is provided with to make and supports filler and the isolated sheathed casing of outer sleeve.
7, seal arrangement according to claim 6 is characterized in that: be provided with stuffing box packing between described outer sleeve and the sheathed casing.
8, seal arrangement according to claim 1 is characterized in that: described outer sleeve is provided with the undergauge section that is connected in sheathed casing.
9, seal arrangement according to claim 1, it is characterized in that: described inner sleeve surface is provided with its axial displacement length graticule, this length graticule is made of "+" "-" length groove of " 0 " and both sides thereof, is the reading benchmark with outer sleeve respective end edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200752003U CN201259025Y (en) | 2008-07-01 | 2008-07-01 | Sealing device for buried pipe protection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200752003U CN201259025Y (en) | 2008-07-01 | 2008-07-01 | Sealing device for buried pipe protection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201259025Y true CN201259025Y (en) | 2009-06-17 |
Family
ID=40773260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200752003U Expired - Lifetime CN201259025Y (en) | 2008-07-01 | 2008-07-01 | Sealing device for buried pipe protection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201259025Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619779B (en) * | 2008-07-01 | 2012-09-19 | 屈铁成 | Sealing device for buried pipe connected with protective well |
| CN108505545A (en) * | 2017-02-28 | 2018-09-07 | 河南省建筑设计研究院有限公司 | A kind of underground pipe group wears the waterproofing process of building foundation raft plate |
-
2008
- 2008-07-01 CN CNU2008200752003U patent/CN201259025Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619779B (en) * | 2008-07-01 | 2012-09-19 | 屈铁成 | Sealing device for buried pipe connected with protective well |
| CN108505545A (en) * | 2017-02-28 | 2018-09-07 | 河南省建筑设计研究院有限公司 | A kind of underground pipe group wears the waterproofing process of building foundation raft plate |
| CN108505545B (en) * | 2017-02-28 | 2020-05-08 | 河南省建筑设计研究院有限公司 | Waterproof method for building foundation raft penetrating through underground pipe group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090617 Effective date of abandoning: 20080701 |