CN201028208Y - Vertically embedded U shaped elbow - Google Patents
Vertically embedded U shaped elbow Download PDFInfo
- Publication number
- CN201028208Y CN201028208Y CNU2007201240347U CN200720124034U CN201028208Y CN 201028208 Y CN201028208 Y CN 201028208Y CN U2007201240347 U CNU2007201240347 U CN U2007201240347U CN 200720124034 U CN200720124034 U CN 200720124034U CN 201028208 Y CN201028208 Y CN 201028208Y
- Authority
- CN
- China
- Prior art keywords
- section
- internal diameter
- elbow
- curve bend
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
A vertically embedded U-shaped elbow comprises an arch elbow section on the bottom, and two extension sections arranged on two ends of the arch section respectively. The upper half of each extension section is a sleeve section which can be covered on a straight pipe to be connected, and the lower half is a straight pipe section which is coaxial with the sleeve section, has the diameter equal to that of the straight pipe to be connected and the same internal diameter of the arch section, and fit close to the arch section, wherein, the internal diameters in various places of the arch section are no less than that of the end port of the arch section, the exterior side of the arch section is provided with a filling body which enwraps the whole section and forms the exterior wall of the arch section, the filling body is an elliptic cone with the tip downward. The utility model is especially suitable for the underground heat exchanger in the ground-source heat pump system. The utility model is less likely to have the problem of easy leakage in the U-shaped pipe, the local energy loss in the arch section is extremely low, and the fabrication is very convenient, as well as installation, construction and transportation.
Description
Technical field
The utility model relates to the elbow of connecting tube, relates in particular to the return bend of ground heat exchanger in the soil source heat pump air conditioner system.
Background technique
Geothermal heat pump air-conditioner is to utilize ground temperature energy in shallow surface normal temperature soil or the water source as a kind of real energy-saving and environmental protection of Lowlevel thermal energy resource, free of contamination air-conditioning technical.Earth source heat pump can be divided into groundwater heat pump, surface water source heat pump and soil source heat pump, and soil source heat pump system is the most common.An end that obtains ground source heat in the circulating line of these earth source heat pumps is embedded in underground, and this part is practised and is called ground heat exchanger.Pipe laying form according to ground heat exchanger is divided into horizontal coiled pipe and vertical pipe laying again.Wherein, soil source heat pump system adopts vertical pipe laying exactly---and vertical drilling in the stratum, vertically insert ground heat exchanger and it be embedded in underground in hole.The bottom of this ground heat exchanger is that what to connect water pipe and return pipe is elbow part.At present, the elbow part of this ground heat exchanger has two kinds of structures usually.A kind of is the elbow that passes through hot melt connection formation with two 90 ° elbow bend, and another kind adopts the fire bending method that the straight tube fire bending is become the return bend shape at the construction field (site) and constitutes.The former deficiency is, exists flow velocity problem jumpy in its elbow, like this, just increased the circulation of fluid resistance, and energy loss is big.The latter's deficiency is that some wall thickness attenuation in its elbow when bearing external and internal pressure or friction, U-shaped pipe leakage problems can occur; When construction, again owing to the influence of mud resistance, existing return bend structure all is not easy to be inserted into the hole bottom.In addition, the internal diameter of the return bend that fire bending is come out is often all little than original straight tube, and its circulation of fluid resistance is also bigger, and energy loss is also big.
The model utility content
The technical problems to be solved in the utility model is, at the deficiencies in the prior art, a kind of return bend of vertically burying underground in soil source heat pump system is provided, this elbow can not only reduce energy loss, be difficult for producing the seepage of elbow, and when construction, mud resistance in the time of effectively reducing construction.
The technological scheme that solve the technical problem is a kind of like this return bend of vertically burying underground, and its aspect identical with existing return bend is that this elbow comprises the curve bend section that is positioned at its bottom and is connected each one section extension on this top, curve bend section two ends.Its improvements are, the first half of described extension is can be socketed in the casing section waiting to connect on the straight tube (in the utility model, straight tube to be connect is exactly that it is embedded in underground part and constitutes a water pipe and a return pipe of so-called ground heat exchanger with return bend), the Lower Half of this extension is coaxial with this casing section, its internal diameter with wait to connect the straight length that straight tube equates and equate and coincide and be connected with the port internal diameter of described curve bend section; Internal diameter everywhere in this curve bend section all is not less than its port internal diameter, and this section of outside handlebar of this curve bend section all wraps up, constitutes simultaneously the filling entity of this curve bend section outer wall, and this filling entity is most advanced and sophisticated oval taper down.
Further improve and be, everywhere internal diameter inwardly increases gradually from two-port in the curve bend section, and the inner diameter values of two-port equates that the inner diameter values in the middle of it is 1.2～1.3 times of two-port inner diameter values.
Compared with prior art, the beneficial effects of the utility model are:
Because this return bend is not that fire bending forms as prior art, has so just avoided the part wall thickness attenuation that fire bending brought, the U-shaped pipe leakage problems that when bearing external and internal pressure or friction, occurs easily; Again since in the utility model the internal diameter everywhere in the curve bend section all be not less than its port internal diameter, the part internal diameter of having avoided the curve bend section brought by fire bending like this diminishes and the circulation of fluid resistance that causes is bigger, the problem that energy loss is big; Because the outside of this curve bend section is all wrapped up by the filling entity of its tip oval taper down, when constructing on mud ground like this, just can effectively reduce mud resistance when constructing again, can not cause damage, reduce difficulty of construction to pipeline.Obviously, behind the extension upper design sleeve structure of this return bend, installation and seamless link straight tube to be connect (water pipe and return pipe) are just very easy, and construction and transportation are all very convenient.
In further improved feature, because interior its middle inner diameter values of curve bend section is 1.2～1.3 times of the two-port inner diameter values, like this, the circulation of fluid resistance in it will reduce further, has eliminated the local energy loss in the curve bend section substantially; Simultaneously, if when being mingled with a spot of molecule in circulating water, they are deposited on than after at the bottom of the thick U type pipe of two ends port, the blockage problem of bringing greatly inadequately because of existing internal diameter itself also can not occur.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1---structural representation of the present utility model
Fig. 2---the A-A among Fig. 1 is to sectional view
Fig. 3---the B among Fig. 1 is to view
Embodiment
A kind of return bend of vertically burying underground (with reference to figure 1,2,3).This elbow comprises the curve bend section 2 that is positioned at its bottom and is connected each one section extension on this top, curve bend section 2 two ends.In the utility model, the first half of two sections extensions is to be socketed in the casing section of waiting to connect on the straight tube 53, the Lower Half of this extension and this casing section are 3 coaxial, its internal diameter with wait to connect the straight length 1 that straight tube 5 equates and equate and coincide and be connected with the port internal diameter of described curve bend section 2.Internal diameter everywhere in the curve bend section 2 of the present utility model all is not less than its port internal diameter, this section of outside handlebar of this curve bend section 2 all wraps up, constitutes simultaneously the filling entity 4 of these curve bend section 2 outer wall, and this filling entity 4 is most advanced and sophisticated oval taper down.
Further feature is, everywhere internal diameter inwardly increases gradually from two-port in this curve bend section 2, and the inner diameter values of two-port equates that the inner diameter values in the middle of it is 1.2～1.3 times of two-port inner diameter values.Better multiple gets 1.25.
It will be apparent to those skilled in that, also be that indubitable problem is, casing section 3 and straight length 1, is that the wall thickness of straight length 1 wherein should equate with the wall thickness of straight tube to be connect (water pipe and return pipe) at least; Because curve bend section 2 outer wall are to constitute by filling entity 4, therefore, thickness everywhere is inequality, but the thickness of its thinnest part can not be lower than the wall thickness of straight tube to be connect (water pipe and return pipe) certainly.Being connected between the utility model and the straight tube to be connect (water pipe and return pipe), normally adopt hot melting mode to finish, certainly, do not get rid of yet and can guarantee the long-term bonding way of using.
Except that the thin-walled of guaranteeing curve bend section 2 outer wall is thick, also should consider the intensity of the utility model in work progress, therefore, fill the major axis of entity 4 top ellipsoids and the ratio of minor axis and be advisable with 2.5～3.More definite numerical value can be determined according to other conditions.
In this embodiment, bigger for guaranteeing the inner diameter values in the middle of the curve bend section 2 than the inner diameter values of two-port, this return bend is designed to by two structures that symmetric part is formed that seamlessly link together.Its symmetry plane is by the plane of two sections extensions and curve bend section 2 center lines (promptly this plane overlaps with horizontal center line among Fig. 3).
Obviously, for the ease of processing and selecting common used material for use as much as possible, this elbow is preferably connected as one by thermal fusion welding by the thermoplastic hard plastics.
That is to say, but the rigid plastics of the optional PE of the material of this elbow and PPR or other thermal fusion welding.
More particularly, the utility model can be reference with the external diameter of straight length 1 wherein, designs plurality of specifications such as DN20, DN25, DN32, DN40.The ellipsoid major axis of their pairing elliptic cones is 90～150mm, and minor axis is 30～60mm; The maximum height of elliptic cone is 60～90mm.
Claims (6)
1. return bend of vertically burying underground, this elbow comprises the curve bend section (2) that is positioned at its bottom and is connected each one section extension on this curve bend section (2) top, two ends, it is characterized in that, the first half of described extension is the casing section (3) that can be socketed on the straight tube to be connect (5), and the Lower Half of this extension is coaxial with this casing section (3), the internal diameter of its internal diameter and straight tube to be connect (5) equates and the straight length (1) that equates and coincide and be connected with the port internal diameter of described curve bend section (2); This curve bend section (2) internal diameter everywhere all is not less than its port internal diameter, this section of outside handlebar of this curve bend section (2) all wraps up, constitutes simultaneously the filling entity (4) of this curve bend section (2) outer wall, and this filling entity (4) is most advanced and sophisticated oval taper down.
2. according to the described return bend of vertically burying underground of claim 1, it is characterized in that, everywhere internal diameter inwardly increases gradually from two-port in the described curve bend section (2), and the inner diameter values of two-port equates that the inner diameter values in the middle of it is 1.2～1.3 times of two-port inner diameter values.
3. according to claim 1 or the 2 described return bends of vertically burying underground, it is characterized in that the major axis of described filling entity (4) top ellipsoid and the ratio of minor axis are 2.5～3.
4. according to claim 1 or the 2 described return bends of vertically burying underground, it is characterized in that this elbow is made up of two symmetric parts that seamlessly link together; Its symmetry plane is the plane by two sections extensions and curve bend section (2) center line.
5. according to the described return bend of vertically burying underground of claim 4, it is characterized in that this elbow is connected as one by thermal fusion welding by the thermoplastic hard plastics.
6. according to the described return bend of vertically burying underground of claim 5, it is characterized in that the material of this elbow is PE and PPR plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240347U CN201028208Y (en) | 2007-04-13 | 2007-04-13 | Vertically embedded U shaped elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240347U CN201028208Y (en) | 2007-04-13 | 2007-04-13 | Vertically embedded U shaped elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028208Y true CN201028208Y (en) | 2008-02-27 |
Family
ID=39132420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201240347U Expired - Fee Related CN201028208Y (en) | 2007-04-13 | 2007-04-13 | Vertically embedded U shaped elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028208Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052538A (en) * | 2011-01-10 | 2011-05-11 | 扬州金泰管业有限公司 | U-shaped connector of pipeline |
| CN102346059A (en) * | 2010-11-08 | 2012-02-08 | 广东省农业科学院土壤肥料研究所 | Simple device for measuring surface runoff quantity and collecting runoff liquid |
| CN102478327A (en) * | 2010-11-30 | 2012-05-30 | 天津市奥瑞特环保节能工程技术有限公司 | Anti-blocking technology for underground U-shaped pipe heat exchanger in ground source heat pump system |
| CN108088102A (en) * | 2017-11-17 | 2018-05-29 | 绿城装饰工程集团有限公司 | A kind of corrugated stainless steel tubing geothermal source heat-exchange system and its setting method |
-
2007
- 2007-04-13 CN CNU2007201240347U patent/CN201028208Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346059A (en) * | 2010-11-08 | 2012-02-08 | 广东省农业科学院土壤肥料研究所 | Simple device for measuring surface runoff quantity and collecting runoff liquid |
| CN102346059B (en) * | 2010-11-08 | 2013-02-20 | 广东省农业科学院土壤肥料研究所 | Simple device for measuring surface runoff quantity and collecting runoff liquid |
| CN102478327A (en) * | 2010-11-30 | 2012-05-30 | 天津市奥瑞特环保节能工程技术有限公司 | Anti-blocking technology for underground U-shaped pipe heat exchanger in ground source heat pump system |
| CN102052538A (en) * | 2011-01-10 | 2011-05-11 | 扬州金泰管业有限公司 | U-shaped connector of pipeline |
| CN108088102A (en) * | 2017-11-17 | 2018-05-29 | 绿城装饰工程集团有限公司 | A kind of corrugated stainless steel tubing geothermal source heat-exchange system and its setting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205501992U (en) | Energy stake heat exchange line structure | |
| CN201028208Y (en) | Vertically embedded U shaped elbow | |
| CN109458757B (en) | Static drilling root planting energy pile and production method and construction method thereof | |
| CN106885386A (en) | A kind of concentric tubes heat exchanger tube | |
| CN111664602A (en) | Bending geothermal well | |
| CN207365483U (en) | A kind of concentric tubes heat exchanger tube | |
| CN201653224U (en) | High-efficiency heat exchange corrugated inner sleeve underground pipe | |
| CN207539507U (en) | A kind of production wellhead pipe heating device | |
| CN104807253B (en) | Ground buried pipe connecting piece, ground buried pipe heat exchanger and heat exchange system | |
| CN207907540U (en) | A kind of earth source heat pump energy stake | |
| CN108088102A (en) | A kind of corrugated stainless steel tubing geothermal source heat-exchange system and its setting method | |
| CN203147128U (en) | Reduced tee pipe fitting for geothermal heating system | |
| CN202007950U (en) | Pipeline connecting pipe | |
| CN210264638U (en) | Drainage gas production pipe column and gas production system for horizontal gas well | |
| CN201680080U (en) | No-shrink-diameter double-hot-melt connecting structure | |
| CN111189243B (en) | Soil heat source collection pipe composite graphite rod point heat transfer energy pile | |
| CN204388423U (en) | A kind of self-heat conserving underground pipe for underground heat | |
| CN107062352A (en) | A kind of hot dry rock heating system | |
| CN201402086Y (en) | Ground source heat pump special tube | |
| CN207203517U (en) | A kind of condensing unit | |
| CN203626625U (en) | Thermal insulated oil tube used for small-diameter oil well | |
| CN207796342U (en) | It is easily installed the feed pipe of docking | |
| CN206708581U (en) | A kind of heat-insulated binary channels PP R pipes | |
| CN215063918U (en) | Double pipe heat exchanger utilization system | |
| CN210570198U (en) | Well head connecting device for double-pipe heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 |