CN207378196U - A kind of heating direct-buried formula ball valve flexible quality guarantee sheath - Google Patents
A kind of heating direct-buried formula ball valve flexible quality guarantee sheath Download PDFInfo
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- CN207378196U CN207378196U CN201721397078.7U CN201721397078U CN207378196U CN 207378196 U CN207378196 U CN 207378196U CN 201721397078 U CN201721397078 U CN 201721397078U CN 207378196 U CN207378196 U CN 207378196U
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- valve rod
- valve
- shaft bottom
- quality guarantee
- caliber end
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Abstract
The utility model is related to a kind of heating direct-buried formula ball valve flexible quality guarantee sheaths; it is symmetricly set on the upper set of valve pit shaft bottom valve rod via the upper side and lower side it is characterized in that the flexible quality guarantee sheath includes suit valve rod and traps; the upper set and to trap be the horn sleeve barrel with large and small bore end; the upper big mouth of sheath footpath end is sealedly connected on the upside of the valve rod via of shaft bottom, and small-caliber end is sealedly connected on valve rod；The heavy caliber end of trapping is sealedly connected on the downside of the valve rod via of shaft bottom, and small-caliber end is sealedly connected on valve rod；The diameter dimension of the valve rod via is 200~400mm；It is upper to cover and trap using existing concentric reducing type rubber soft joint, and its heavy caliber end is fixed on by flange seal on shaft bottom, small-caliber end is fixed on by clip sealing on valve rod.The beneficial effects of the utility model are：Extend valve service life, improve heat supply pipeline safety in operation, while maintenance easy to operation.
Description
Technical field
The utility model is related to heating field directly buried hot-water piping valve facility more particularly to a kind of heating direct-buried formula balls
Valve flexible quality guarantee sheath.
Background technology
Currently, in directly buried hot-water piping heating system, the valve being connected with pipeline, driving device are installed in valve well
In, since well body is deeply big, prefabricated, construction is both needed to consuming compared with high cost and time, and engineering is complicated.With the development of technology, at present
Market is proposed a kind of novel heat insulation type direct-buried ball valve, which can directly be embedded in underground, not place in valve well, thus
Without building deep big valve well, only small-sized shallow well need to be set on the ground, greatly save operating expenses and engineering time.
As shown in Figure 1, thermal-insulating type direct-buried ball valve 2 application when with heat supply pipeline 1 simultaneously direct-burried in underground sand 7,
Its valve rod 21 is penetrated by the valve rod via 42 of 4 bottom of valve well in well, is connected with well inner driving device turbine box 5.In construction,
Valve rod 21 and shaft bottom 41 are fixed seal connections.But hot water pipeline is during heat supply running, with the variation of heat supply temperature
Pipe expansion, displacement can be generated, such valve rod 21 is fixedly connected with the displacement for constraining valve body with heat supply pipeline 1 with shaft bottom 41,
So as to generate a kind of radial stress, for a long time by this stress influenced that valve service life can be shortened and meanwhile can cause valve rod with
Shaft bottom connecting portion rupture destroys the tightness of valve pit.
Utility model content
The main purpose of the utility model is that in view of the above-mentioned problems, a kind of heating direct-buried formula ball valve is provided with elastic soft quality
Protective case can meet hot water pipeline normal thermal expansion and move the displacement of valve rod brought and the tightness of valve pit, by
This, effectively prevents valve from damaging and ensures the home of valve pit, improves heat supply pipeline safety in operation, while dimension easy to operation
Shield.
Technical solution is used by the utility model solves its technical problem：
A kind of heating direct-buried formula ball valve flexible quality guarantee sheath, it is characterised in that the flexible quality guarantee sheath includes set
Dress valve rod is symmetricly set on the upper set of valve pit shaft bottom valve rod via the upper side and lower side and traps, the upper set and to trap be to have
The horn sleeve barrel at large and small bore end, the upper big mouth of sheath footpath end are sealedly connected on the upside of the valve rod via of shaft bottom, small-caliber end
It is sealedly connected on valve rod；The heavy caliber end of trapping is sealedly connected on the downside of the valve rod via of shaft bottom, and small-caliber end sealing connects
It is connected on valve rod.
The diameter dimension of the valve rod via is 200~400mm.
The upper set and the existing concentric reducing type rubber soft joint of use of trapping, and its heavy caliber end is close by flange respectively
Sealing is scheduled on shaft bottom, small-caliber end is fixed on by clip sealing on valve rod respectively.
The beneficial effects of the utility model are：Due to provide it is a kind of be placed between valve pit and valve rod by symmetrically arranged
The flexible quality guarantee sheath of upper set and composition of trapping, 1. provides the space moved with heat supply pipeline for valve rod, eliminates valve pit
The destructive stress on valve rod is acted on, extends valve service life.2. one is provided between being sleeved on on the upside of valve rod and shaft bottom
A closed elastic force flexible space, can extraction duct thermal walking and sundries drop and be deposited in around valve rod in well
Corrosion attack effect is generated to valve rod.Under be sleeved on the downside of valve rod and shaft bottom between be provided with a closed elastic force flexible space,
Extraction duct thermal walking and Groundwater infiltration can be prevented in valve pit, avoiding influencing the normal service of valve, operation.
3. flexible quality guarantee sheath is connected with the connection mode of the upper and lower both sides in shaft bottom using flange bolt, installed additional between flange and shaft bottom
Seal washer uses clamp connection with valve rod, and the upper and lower both sides in shaft bottom are symmetrically installed, not only easy to operate, but also tightness is high,
Improve the safe and reliable property of conduit running.
Description of the drawings
Fig. 1 is the mounting structure schematic diagram of existing thermal-insulating type direct-buried ball valve；
Fig. 2 is flexible quality guarantee sheath provided by the utility model and its structure diagram applied to direct-buried ball valve；
Fig. 3 is the enlarged structure schematic diagram of elastic soft quality protective case part in Fig. 2.
In figure：1 heat supply pipeline, 2 ball valves, 21 valve rods, 3 ground, 4 valve wells, 41 shaft bottoms, 42 valve rod vias, 5 turbine boxes, 6
Well lid, 7 sands, 8 flexible quality guarantee sheaths are covered on 81, and 82 trap, 9 flanges, 10 clips, 11 bolts, 12 seal washers.
The utility model is described in detail below in conjunction with attached drawing and example.
Specific embodiment
Fig. 2-3 shows a kind of heating direct-buried formula ball valve flexible quality guarantee sheath and its application in direct-buried ball valve,
The utility model is characterized in that the flexible quality guarantee sheath 8 includes suit valve rod 21 and is symmetricly set on 4 shaft bottom 41 of valve pit
The upper set 81 of 42 the upper side and lower side of valve rod via and trap 82, the upper set 81 and to trap 82 be with large and small bore end
Horn sleeve barrel, the upper big mouth of sheath footpath end are sealedly connected on the upside of shaft bottom valve rod via 42, and small-caliber end is tightly connected
On valve rod 21；The 82 heavy caliber ends of trapping are sealedly connected on the downside of shaft bottom valve rod via 42, and small-caliber end sealing connects
It is connected on valve rod 21.It is symmetricly set on the upper set 81 of 42 upper and lower sides of valve rod via and 82 sealed valve stem vias 42 of trapping, formation is whole
The flexible quality guarantee sheath 8 of body airtight connection.
In practice of construction, direct-buried ball valve well is smaller, during shaft building mostly by the way of concrete prefabricated, i.e., is carried outside the venue
Preceding casting concrete valve pit 4, construction site are directly lifted to designated position.It is reserved in the shaft bottom center of prefabricated valve pit
Valve rod via 42, the size of valve rod via 42 need to meet above-mentioned flexible quality guarantee sheath for when absorbing valve rod with thermal expansion of pipeline
Displacement needs, according to the displacement calculation at pipe arrangement valve, in routinely applying, the diameter dimension of valve rod via 42
For 200~400mm.
It above covers 81 and traps 82 using existing concentric reducing type rubber soft joint, and its heavy caliber end passes through flange 9 respectively
Sealing is fixed on shaft bottom 41, small-caliber end is fixed on by the sealing of clip 10 on valve rod 82 respectively.
The double great concentric reducing type flange form rubber soft joints up to rubber soft joint factory in Beijing are employed in this example, this is soft to connect
Head has that high pressure resistant, elasticity is good for a kind of threaded tubular cylinder, can axially, transverse direction, angular displacement, light weight, damping move performance
High special energy, while there is acidproof, alkaline-resisting, oil resistant.
The commercially available concentric equal adapted flanged joint of reducing type flange form rubber soft joint upper and lower side is fixed, in view of upper cover and trap
Small-caliber end is both needed to be connected with valve rod 81, and in this example, the mounting flange for the small-caliber end being connected with valve rod is replaced with clip 10,
To be applicable in and the sealed connection of valve rod.During construction, heavy caliber end is fixed on by the sealing of bolt 11 of flange 9 on shaft bottom 41, small
Bore end is fixed on by the sealing of clip 10 on valve rod 21, and seal washer 12 is set between flange 9 and shaft bottom 41, so as to fulfill
More strict sealed connection.As a result, in valve rod by valve rod via segments, 82 formed Integral sealing by upper set 81 and connected with trapping
Flexible quality guarantee sheath 8.
In conclusion by using heating direct-buried formula ball valve flexible quality guarantee sheath provided by the utility model, 1. by
In providing a kind of flexible quality guarantee sheath being placed between valve pit and valve rod, provide for valve rod 21 and moved with heat supply pipeline 1
Space, eliminate valve pit 4 and act on destructive stress on valve rod, extend valve service life.2. upper set 81 is in valve rod 21
Between the upside of shaft bottom 4 a closed elastic force flexible space is provided with, it can extraction duct thermal walking and sundries
It drops to be deposited in around valve rod in well and corrosion attack effect is generated to valve rod.It is set between 82 are trapped on the downside of the valve rod 21 and shaft bottom
One closed elastic force flexible space extraction duct thermal walking and can prevent Groundwater infiltration from, in valve pit, avoiding shadow
Ring the normal service to valve, operation.3. flexible quality guarantee sheath 8 and the connection mode of the upper and lower both sides in shaft bottom use flange spiral shell
It tethers and connects, install seal washer 12 between flange and shaft bottom additional, be connected with valve rod using clip 10, the upper and lower both sides in shaft bottom are symmetrically pacified
Dress, it is not only easy to operate, and also tightness is high, improves the safe and reliable property of conduit running.
The above is only the preferred embodiment of the utility model, not to the structure and shape of the utility model
Make limitation in any form, it is every any simply to be repaiied to what above example was made according to the technical essence of the utility model
Change, equivalent variations and modification, in the range of still falling within technical solutions of the utility model.
Claims (3)
1. a kind of heating direct-buried formula ball valve flexible quality guarantee sheath, it is characterised in that the flexible quality guarantee sheath includes suit
Valve rod is symmetricly set on the upper set of valve pit shaft bottom valve rod via the upper side and lower side and traps, the upper set and to trap be to have
The horn sleeve barrel at large and small bore end, the upper big mouth of sheath footpath end are sealedly connected on the upside of the valve rod via of shaft bottom, small-caliber end
It is sealedly connected on valve rod；The heavy caliber end of trapping is sealedly connected on the downside of the valve rod via of shaft bottom, and small-caliber end sealing connects
It is connected on valve rod.
A kind of 2. heating direct-buried formula ball valve flexible quality guarantee sheath according to claim 1, it is characterised in that the valve
The diameter dimension of bar via is 200-400mm.
3. a kind of heating direct-buried formula ball valve flexible quality guarantee sheath according to claim 1 or 2, it is characterised in that described
It is upper to cover and trap using existing concentric reducing type rubber soft joint, and its heavy caliber end is fixed on shaft bottom by flange seal respectively
Upper, small-caliber end is fixed on by clip sealing on valve rod respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397078.7U CN207378196U (en) | 2017-10-26 | 2017-10-26 | A kind of heating direct-buried formula ball valve flexible quality guarantee sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397078.7U CN207378196U (en) | 2017-10-26 | 2017-10-26 | A kind of heating direct-buried formula ball valve flexible quality guarantee sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378196U true CN207378196U (en) | 2018-05-18 |
Family
ID=62336403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721397078.7U Expired - Fee Related CN207378196U (en) | 2017-10-26 | 2017-10-26 | A kind of heating direct-buried formula ball valve flexible quality guarantee sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708398A (en) * | 2018-08-10 | 2018-10-26 | 上海燃气浦东销售有限公司 | The preset burnt gas valve well of hat type and its construction technology |
-
2017
- 2017-10-26 CN CN201721397078.7U patent/CN207378196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708398A (en) * | 2018-08-10 | 2018-10-26 | 上海燃气浦东销售有限公司 | The preset burnt gas valve well of hat type and its construction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |