CN103075612A - Pipe fitting for connecting combined type heat preservation pipe - Google Patents
Pipe fitting for connecting combined type heat preservation pipe Download PDFInfo
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- CN103075612A CN103075612A CN2013100174530A CN201310017453A CN103075612A CN 103075612 A CN103075612 A CN 103075612A CN 2013100174530 A CN2013100174530 A CN 2013100174530A CN 201310017453 A CN201310017453 A CN 201310017453A CN 103075612 A CN103075612 A CN 103075612A
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- oversheath
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Abstract
The invention provides a pipe fitting for connecting a combined type heat preservation pipe, belonging to a pipe fitting for connecting a pipeline for transporting fluid. The pipe fitting comprises a tee joint which is formed by an inner pipe fitting and an outer sheath matched with the inner pipe fitting, a straight joint, an elbow and a gap bridge. The pipe fitting is characterized in that the inner pipe fitting is a medium-density polyethylene pipe, i.e. a PE-RT pipe, or a polybutylene pipe, i.e. a PB pipe, or a random polypropylene-copolymer pipe, i.e. a PP-R pipe; the outer sheath is a polrvinyl chloride sheath, or a polypropylene sheath, or a polyethylene sheath, i.e. a PE sheath; and a heat insulation heat preservation layer made of a polyurethane foaming layer is arranged between the inner pipe fitting and the outer sheath. The trial shows that a connecting part of a heat preservation pipe in the pipeline engineering has the same heat preservation effect like the other parts, so that the engineering quality and the use effect can be guaranteed; and the inner pipe fitting and the outer sheath are tightly glued into a whole by the polyurethane foaming layer, and the polyurethane foaming layer is in preferable gluing connection with the heat insulation heat preservation layer of the heat preservation pipe at a connection place, so that the pipe fitting is firm and reliable to connect.
Description
Technical field: the invention belongs to and carry fluid to use pipe fitting with the pipeline connection, relate to a kind of combination type heat insulating pipe connection pipe fitting.
Background technique: prior art document 1CN101672412A discloses a kind of trimerical composite thermal insulation pipe; " the inside of this thermal insulation pipe is steel pipe; there is polyurethane insulation coating steel pipe outside; the polyurethane insulation coating outside is the waterproof protecting layer that one deck is made of the polyethylene from high pressure process thin walled tube; it is characterized in that: between steel pipe and polyurethane foam insulation layer; one deck polystyrene heat-preservation layer in addition; this polystyrene heat-preservation layer is to make at least two foamed polystyrene cambered plate make-ups that radius and outer diameter of steel pipes match by polystyrene at the foaming heat pressing machine to form; the polystyrene heat-preservation layer is set with waterproof protecting layer outward; leave the space between polystyrene heat-preservation layer and the waterproof protecting layer; polyurethane insulation coating is to put in the gap with the polyurethane foaming rifle, and the injection polyurethane foaming is filled whole cavity and formed." prior art document 2 notice of authorization CN201779406U disclose a kind of thermal insulation pipe, " it comprises an inner tube, and described inner tube is provided with thermal insulation layer outward, and described thermal insulation layer is provided with external protection outward.This thermal insulation pipe inner tube is provided with thermal insulation layer and external protection outward, and thermal insulation layer adopts polyurethane material, and external protection adopts plastic protective film for plastics." prior art document 3 notice of authorization CN202195236U disclose a kind of thermal insulation pipe; " adopt following technological scheme: a kind of thermal insulation pipe, it comprises an inner tube, described inner tube is provided with thermal insulation layer outward; described thermal insulation layer is provided with external protection outward, and described external protection is aluminium foil layer or plastic film layers.The material of described thermal insulation layer is polyurethane material.Described inner tube is plastic tube or metal tube." prior art document 4 notice of authorization CN202402812U disclose a kind of thermal insulation pipe; " a kind of thermal insulation pipe; body comprises three-decker; wherein internal layer is basic unit; the mesosphere is thermal insulation layer, and skin is protective layer, and wherein basic unit is made of the PP-R extrusion molding; thermal insulation layer is made of EVA foaming extrusion molding, and protective layer is that the PE extrusion molding consists of.”
In actual use, prior art document 1,2,3,4 thermal insulation pipe are the straight line type tubing of certain-length specification, in the as installed construction, must need to connect and use pipe fitting, such as threeway, lead directly to, elbow, gap bridge etc.And lack the pipe fitting of the connection with insulation effect in the prior art, and therefore cause the thermal insulation pipe attachment portion not have like that identical heat insulation effect with remaining part, directly affected construction quality and using effect.This shows, study and design a kind of that have a heat insulation and preservation effect and firm and reliable connection, site operation easily the combination type heat insulating pipe to connect with pipe fitting be necessary.
Summary of the invention: the objective of the invention is to remedy the deficiencies in the prior art, study and design a kind of that have a heat insulation and preservation effect and firm and reliable connection, site operation easily the combination type heat insulating pipe connect and use pipe fitting.
The object of the present invention is achieved like this:
A kind of combination type heat insulating pipe connects uses pipe fitting, comprise by interior pipe fitting and threeway that the oversheath that cooperates with it combines, straight-through, elbow, gap bridge, it is characterized in that described inner tube is the medium density polyethylene pipe, it is the PE-RT pipe, / or Polybutylene Pipe, be the PB pipe ,/or polypropylene random copolymer pipe, i.e. PP-R pipe; Described oversheath is pvc sheath ,/or polypropylene cover ,/or pe sheath, i.e. PE sheath; Be provided with the insulating that polyurethane foaming layer consists of between described interior pipe fitting and the oversheath.
Joint, described interior pipe fitting two ends internal diameter and the required thermal insulation pipe inner tube external diameter interference fit that is connected.Joint, described oversheath two ends internal diameter and the required thermal insulation pipe outer tube external diameter interference fit that is connected.The technique effect of this design is that interior pipe fitting connects more solid and reliable with the required thermal insulation pipe inner tube that is connected, oversheath with the required thermal insulation pipe outer tube that is connected.
Described oversheath is to be designed to involutory be interlockingly connected or the clamping all-in-one-piece is measure-alike that 2 half sheets form.The technique effect of this design is more convenient when making site operation.
The combination type heat insulating pipe that technological scheme of the present invention obtains after implementing connects uses pipe fitting, has shown following beneficial effect with prior art is comparable:
1, has heat insulation and preservation effect, guaranteed construction quality and using effect. Prior art document 1,2,3,4 thermal insulation pipe are the straight line type tubing of certain-length specification, lack the connection pipe fitting with insulation effect.And the present invention has remedied the deficiencies in the prior art, the connection pipe fitting of the insulating with polyurethane foaming layer formation is provided, polyurethane foaming layer between interior pipe fitting and oversheath, has goodish spumescence hole-closing structure, the Measurement of Gas Thermal Conductivity that is completely cut off sealing in the closed pore only is 0.024W/M.K, to carrying fluid to have goodish heat insulation and preservation effect with the fluid that is transferred that passes through in the interior pipe fitting of pipeline connection with pipe fitting, the thermal insulation pipe attachment portion can have identical heat insulation effect like that with remaining part in the pipework, thereby has guaranteed construction quality and using effect.
2, firm and reliable connection, site operation are conveniently.Prior art document 1; 2; 3; 4 thermal insulation pipe; combination type heat insulating pipe of the present invention connects with pipe fitting in use; the use of pipe fitting in it; with prior art document 1; 2; 3; it is the same during 4 thermal insulation pipe is constructed at the scene; adopt conventional connecting means; adopt sweat soldering such as the joint; after finishing interior pipe fitting and being connected in thermal insulation pipe inner tube in the pipework; again in corresponding connection part is connected in oversheath in thermal insulation pipe protective layer pipeline in the pipework; then the oversheath at connection part gets out through hole; at last with the through hole of commercially available polyurethane foam gun through getting out; inwardly perfusion has the polyurethane foam component fluids that is higher than atmospheric pressure in the jacket space between pipe fitting and the oversheath; treat that the polyurethane foam component fluids in the jacket space between interior pipe fitting and the oversheath becomes the polyurethane foaming layer with spumescence hole-closing structure, just finished combination type heat insulating pipe of the present invention and connected the site operation of using pipe fitting.Whole work progress is the same convenient with the thermal insulation pipe work progress of prior art.Polyurethane foaming layer becomes whole with interior pipe fitting with the oversheath tight bond, and with the thermal insulation pipe insulating that is connected in the joint bonding connection reasonably well, so firm and reliable connection.
Description of drawings: Fig. 1 is the schematic diagram that meets thematic structure of the present invention; Fig. 2 is A-A generalized section among Fig. 1; Fig. 3, the 4th, the partial structurtes schematic diagram that Placement is interlocked, fastens when being designed to involutory 2 half sheets composition oversheaths that link into an integrated entity.
Embodiment: by reference to the accompanying drawings implementation detail of the present invention is described as follows:
As shown in Figure 1, 2, a kind of combination type heat insulating pipe connects uses pipe fitting, comprise by interior pipe fitting 1 and threeway that the oversheath 2 that cooperates with it combines, straight-through, elbow, gap bridge, it is characterized in that described interior pipe fitting is that described inner tube is the medium density polyethylene pipe, be the PE-RT pipe, or Polybutylene Pipe, i.e. PB pipe, or polypropylene random copolymer pipe, i.e. PP-R pipe; Described oversheath is pvc sheath, or polypropylene cover, or pe sheath, i.e. the PE sheath; Be provided with the insulating 3 that polyurethane foaming layer consists of between described interior pipe fitting and the oversheath.
During enforcement; interior pipe fitting 1 and oversheath 2 adopt the manufacturing of conventional hot extrusion technique; when constructing at the scene, adopts polyurethane foaming layer 3 conventional connecting means; adopt sweat soldering such as the joint; after finishing interior pipe fitting and being connected in thermal insulation pipe inner tube in the pipework; again in corresponding connection part is connected in oversheath in thermal insulation pipe protective layer pipeline in the pipework; then the oversheath at connection part gets out through hole; at last with the through hole of commercially available polyurethane foam gun through getting out; inwardly perfusion has the polyurethane foam component fluids that is higher than atmospheric pressure in the jacket space between pipe fitting and the oversheath, treats that the polyurethane foam component fluids in the jacket space between interior pipe fitting and the oversheath becomes the polyurethane foaming layer 3 with spumescence hole-closing structure.
Only represented the mode of execution schematic diagram of technological scheme of the present invention in the three-way joint element of one of pipe fitting among Fig. 1.As everyone knows, other pipe fittings as straight-through part, elbow piece, four-way spare ... all can be implemented according to the mode of execution in the three-way joint element, this is the basic skills of the those of ordinary skill in this field, need not to narrate one by one explanation.
Know to those of ordinary skill common-sense in this field, straight-through part, elbow piece, three-way joint element, four-way spare ... in to press internal diameter size constant or change minute, have the straight-through part of reducing, elbow piece, three-way joint element, four-way spare, Elbow piece also can be divided into elbow bend, 135 ° of elbows, 45 ° of elbows etc., all can be implemented according to the mode of execution in the three-way joint element, need not to narrate one by one explanation.
As shown in Figure 1, joint, described interior pipe fitting 1 two ends internal diameter and the required thermal insulation pipe inner tube that is connected 01 external diameter interference fit.
As shown in Figure 1, joint, described oversheath 2 two ends internal diameter and the required thermal insulation pipe outer tube that is connected 02 external diameter interference fit; Be designed with on the described oversheath 2 for the fixing screw 23 of self tapping screw.
As shown in Figure 3, described oversheath 2 is to be designed to involutory 2 half sheets 21 that link into an integrated entity, measure-alike that are interlocked, 22 form.
As shown in Figure 4, described oversheath 2 is to be designed to involutory 2 half sheets 21 that link into an integrated entity, measure-alike that fasten, 22 form.
Claims (5)
1. a combination type heat insulating pipe connects and use pipe fitting, comprises threeway that the oversheath (2) by interior pipe fitting (1) and with it cooperation combines, leads directly to, elbow, gap bridge, it is characterized in that
---described inner tube is the medium density polyethylene pipe, and namely PE-RT manages ,/or Polybutylene Pipe, namely PB manages ,/or polypropylene random copolymer pipe, i.e. PP-R pipe;
---described oversheath is pvc sheath ,/or polypropylene cover ,/or pe sheath, i.e. PE sheath;
---be provided with the insulating (3) that polyurethane foaming layer consists of between described interior pipe fitting and the oversheath.
2. pipe fitting is used in a kind of combination type heat insulating pipe connection according to claim 1, it is characterized in that described interior pipe fitting (1) joint, two ends internal diameter and required thermal insulation pipe inner tube (01) the external diameter interference fit that is connected.
3. pipe fitting is used in a kind of combination type heat insulating pipe connection according to claim 1, it is characterized in that described oversheath (2) joint, two ends internal diameter and required thermal insulation pipe outer tube (02) the external diameter interference fit that is connected.
According to claim 1 or 3 described a kind of combination type heat insulating pipes connect and use pipe fitting, it is characterized in that described oversheath (2) is to be designed to involutory being interlocked/or 2 half sheets that link into an integrated entity, measure-alike (21,22) composition that fastens.
According to claim 1 or 3 described a kind of combination type heat insulating pipes connect and use pipe fitting, it is characterized in that being designed with on the described oversheath (2) screw (23) of fixing for self tapping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100174530A CN103075612A (en) | 2013-01-18 | 2013-01-18 | Pipe fitting for connecting combined type heat preservation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100174530A CN103075612A (en) | 2013-01-18 | 2013-01-18 | Pipe fitting for connecting combined type heat preservation pipe |
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| CN103075612A true CN103075612A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100174530A Pending CN103075612A (en) | 2013-01-18 | 2013-01-18 | Pipe fitting for connecting combined type heat preservation pipe |
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| CN (1) | CN103075612A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548051A (en) * | 2018-05-05 | 2018-09-18 | 芜湖君如保温材料有限公司 | A kind of two-flap type threeway heat-preserving bent pipe accessory |
| CN108591688A (en) * | 2018-05-05 | 2018-09-28 | 芜湖君如保温材料有限公司 | A kind of logical heat preservation straight tube accessory of two-flap type two |
| CN108591686A (en) * | 2018-05-05 | 2018-09-28 | 芜湖君如保温材料有限公司 | A kind of two-flap type two leads to heat-preserving bent pipe accessory |
| GB2627335A (en) * | 2023-02-20 | 2024-08-21 | Mosley Neale Tim | Insulated pipe assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161392A (en) * | 2001-11-27 | 2003-06-06 | Funen Akurosu Kk | Thermal expanding annular joint member with fire resistance for fire resisting double layer pipe joint |
| CN201377657Y (en) * | 2009-04-07 | 2010-01-06 | 苏建元 | Polyethylene foam thermal insulation water delivery pipe |
| CN201731230U (en) * | 2010-01-05 | 2011-02-02 | 齐克先 | Polyurethane foam heat insulation bent pipe with outer polyethylene protective pipe |
| CN201982863U (en) * | 2011-01-28 | 2011-09-21 | 北京豪特耐管道设备有限公司 | Steel outer protection polyurethane heat preservation elbow |
| CN203131334U (en) * | 2013-01-18 | 2013-08-14 | 镇江华伟塑管有限公司 | Combined-type pipe fitting for connection of thermal insulation pipes |
-
2013
- 2013-01-18 CN CN2013100174530A patent/CN103075612A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161392A (en) * | 2001-11-27 | 2003-06-06 | Funen Akurosu Kk | Thermal expanding annular joint member with fire resistance for fire resisting double layer pipe joint |
| CN201377657Y (en) * | 2009-04-07 | 2010-01-06 | 苏建元 | Polyethylene foam thermal insulation water delivery pipe |
| CN201731230U (en) * | 2010-01-05 | 2011-02-02 | 齐克先 | Polyurethane foam heat insulation bent pipe with outer polyethylene protective pipe |
| CN201982863U (en) * | 2011-01-28 | 2011-09-21 | 北京豪特耐管道设备有限公司 | Steel outer protection polyurethane heat preservation elbow |
| CN203131334U (en) * | 2013-01-18 | 2013-08-14 | 镇江华伟塑管有限公司 | Combined-type pipe fitting for connection of thermal insulation pipes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548051A (en) * | 2018-05-05 | 2018-09-18 | 芜湖君如保温材料有限公司 | A kind of two-flap type threeway heat-preserving bent pipe accessory |
| CN108591688A (en) * | 2018-05-05 | 2018-09-28 | 芜湖君如保温材料有限公司 | A kind of logical heat preservation straight tube accessory of two-flap type two |
| CN108591686A (en) * | 2018-05-05 | 2018-09-28 | 芜湖君如保温材料有限公司 | A kind of two-flap type two leads to heat-preserving bent pipe accessory |
| GB2627335A (en) * | 2023-02-20 | 2024-08-21 | Mosley Neale Tim | Insulated pipe assembly |
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Application publication date: 20130501 |