CN2470634Y

CN2470634Y - Formed foamed coated plastic pipe

Info

Publication number: CN2470634Y
Application number: CN 00259201
Authority: CN
Inventors: 林中庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-17
Filing date: 2000-11-17
Publication date: 2002-01-09
Anticipated expiration: 2010-11-17

Abstract

Disclosed is an integral forming foam coating plastic pipe, which comprises a foam insulating layer and a coating layer. The utility model is characterized in that a plastic pipe is coated in the foam insulating layer which is contacted with the joint surface of the plastic pipe without clearance; the coating layer which is made in integration and has strong force strength is arranged on the foam insulating layer which is contacted with the coating layer without clearance. Because the outer surface of the plastic pipe is coated sequentially with the foam insulating layer and the high strength coating layering without clearance, not only the insulation effect is enhanced greatly, the noise generated by the flowing liquid in the pipe and the harmful effect for the wall are reduced, but also the impact resistance of the pipe body is increased.

Description

Integrated foaming lining plastic cement pipe

The utility model relates to a kind of complex plastic pipe.

The existing plastic cement pipe that is installed in the building outer wall or is embedded in internal face conveying hot water or cold water (liquid), following shortcoming is arranged: first in long-term using process, if the plastic cement pipe is installed in outside the wall, be easy to heat radiation, the liquid heat loss is very big, and is very long as pipeline, when hot water inputs to output terminal output from input end, serious heat loss, temperature reduces a lot, causes the very big waste of thermal source and water resources.The second, if the plastic cement pipe is embedded in the concrete wall,, make the plastic cement pipe produce the cold and hot temperature difference on every side, thereby it is aging finally to produce cement, the disastrous effect of ceramic tile projection because of delivering hot water in the pipeline.The 3rd, the plastic cement pipe is when carrying liquid, and the noise that flow of fluid produced often makes people downstairs all can know and hears, night particularly is so greatly reduce for the quality of inhabitation.The 4th, be contained in the outer plastic cement pipe of wall, when ambient temperature under subzero state Celsius, the liquid that stops in the pipe is easy to freeze, so that causes and can't carry liquid, What is more may cause the plastic cement tracheal rupture.Also has a kind of thermal insulation pipe that in industry, uses in addition, its structure such as Fig. 1, shown in 2, it is by the jointless cylindrical cover of plural number B1---is socketed on the pipeline B, though this cylindrical cover B1 is made of thermal insulating material, but owing to cylindrical cover B1 is combined on the pipeline B with the method socket of socket, thereby inevitable joining place generation gap B2 between pipeline B and cylindrical cover B1, because concerning, the inside and outside temperature difference of pipe is easy to generate dewfall at gap B2 place, thereby heat insulation effect is successively decreased, particularly cylindrical cover B1 is a single layer structure, and its thermal insulating material is made of polyethylene (calling PE in the following text) foaming body, thus bubble (or hole) is arranged between material layer, therefore, not only heat insulation effect is not good, and be subjected to external force collision easily and deformation fracture not only influences outward appearance U.S., and influence the pipeline heat insulation effect.In addition, the non-fire proofing material of cylindrical cover B1 is inflammable.Also has another kind of structure, be socketed on the pipeline C at its jointed upper and lower overcoat C1, C2, as shown in Figure 3, upper and lower overcoat C1, C2 are made of thermal insulating material, relend with U-bolt C3 (or P type pipe clamp) to be fixed on the angle steel D, and the shortcoming of this structure is: first, necessary when mounted upper and lower overcoat C1, C2 fit, relend with U bolt and be fixed on the angle steel D, it is loaded down with trivial details to construct, and this structure can only be with outside the building.The second, owing to the seam of linking C4 is arranged and form clearance C 5 on pipeline C, therefore, the pipe face easily produces dewfall, causes heat insulation effect not good.The 3rd, because upper and lower overcoat C1, C2 are subjected to the external force effect and deformation failure easily for the individual layer thermal insulating material constitutes, just further cause heat insulation effect to successively decrease.The 4th, because PE is that non-fire proofing material foaming is cotton inflammable.

The purpose of this utility model is will provide a kind of can make the splendid heat insulation effect of pipeline performance, and can reduce the noise of flow of fluid in the pipeline significantly, manage in the concrete wall body, to use not make the concrete aging be full of cracks in advance, a kind of integrated foaming lining plastic cement pipe of anti-external force collision.

For reaching above-mentioned purpose the utility model is to realize like this, integrated foaming lining plastic cement pipe includes: a plastic cement pipe, an insulating foam layer and a coating, it is characterized in that outer tube surface at the plastic cement pipe has an insulating foam layer of one-body molded (can be extrusion molding), no any gap between the junction plane of insulating foam layer and plastic cement pipe; One have the coating that is subjected to force intensity more by force be one-body molded (can be extrusion molding) on insulating foam layer, do not have the gap between insulating foam layer and the coating interface.

Plastic cement pipe wherein can be by other material substitution, as metal pipe or other material.

The utility model has the advantages that, because the plastic cement pipe seamlessly is coated with insulating foam layer and coating outward successively, not only increase heat insulation effect greatly, reduced the noise of liquid mobile generation in pipe and the harmful effect that body of wall is produced, and increased the impact resistance of body itself.

Below in conjunction with drawings and Examples structure of the present utility model, principle are described further.

Fig. 1 is the pipeline three-dimensional exploded view of common technique.

Fig. 2 is the pipeline section exploded view of common technique.

Fig. 3 is another embodiment's pipeline sectional view of common technique.

Fig. 4 is a schematic perspective view of the present utility model.

Fig. 5 is a part section schematic perspective view of the present utility model.

Fig. 6 is a sectional view of the present utility model.

Fig. 7 is embedded in schematic partial sectional view in the concrete wall for the utility model.

The drawing reference numeral explanation:

10 ... the plastic cement pipe

12 ... insulating foam layer

14 ... coating

W ... liquid

60 ... concrete

Embodiment:

As Fig. 4 is schematic perspective view of the present utility model, Fig. 5 is that part section schematic perspective view of the present utility model and Fig. 6 are shown in the sectional view of the present utility model, the utility model is the technology at the outer tube surface utilization foaming extrusion molding of plastic cement pipe 10, make insulating foam layer 12 with on the absolute gapless one-body molded outer tube surface that sticks on plastic cement pipe 10, and then in type insulating foam layer 12 outer surfaces again through the technology of the second road extrusion molding, make on the gapless again outer surface that is coated on insulating foam layer 12 of coating 14.When using, the material of insulating foam layer 12 is PE foam materials, and the thickness of coating 14 can design than insulating foam layer 12 for thin, and can selective staining in the blending material of coating 14, the distribution that makes coating 14 have certain color is to increase aesthetic feeling.

Be embedded in shown in the schematic partial sectional view in the concrete wall as Fig. 7 the utility model, when the liquid W of plastic cement pipe 10 inside flows, when particularly liquid W has temperature mobile, at this moment the junction plane of insulating foam layer 12 and plastic cement pipe 10, because of no gap (promptly one-body molded), so can prevent to produce dewfall at the pipe face of plastic cement pipe 10, further can stop the temperature of liquid W to reduce energy loss, finally can effectively save the energy.In other words, liquid W flow into output terminal output from the input end of plastic cement pipe 10, and its heat reduces, and the temperature difference greatly reduces.Especially coating 14 no gaps stick on the insulating foam layer 12, so the outer surface of coating 14 do not have dewfall, so will not make near concrete 60 aging, the be full of cracks the coating 14.And more can not cross the low liquid W that causes plastic cement pipe 10 inside and freeze because of the external environmemt temperature of plastic cement pipe 10.

Because coating 14 has high tenacity and flame resistance, therefore when whole pipeline installation, fully can not cause insulating foam layer 12 distortion depressions because of being collided, constant with the thermal insulation area (volume) of guaranteeing insulating foam layer 12.Material because of coating 14 is to mix flame retardant material again, can reach fire retardant resistance.Also have coating 14 to dye the whole aesthetic feeling of distribution raising of body with color as required.Because combining between coating 14 and the insulating foam layer 12 is gapless one combination, this has just further protected insulating foam layer 12, makes the better heat preservation of insulating foam layer 12.

The material of plastic cement pipe can select suitable material to substitute, as metal material or other material according to the design needs.

Claims

1, a kind of integrated foaming lining plastic cement pipe includes an insulating foam layer and a coating, it is characterized in that coating the plastic cement pipe in insulating foam layer, and the junction plane of insulating foam layer and plastic cement pipe does not have the gap; Be one-body molded and have the coating that is subjected to force intensity more by force not have the gap between the interface of insulating foam layer and coating on insulating foam layer.

2, integrated foaming lining plastic cement pipe according to claim 1 is characterized in that clad metal pipe in the insulating foam layer.