CN204042326U

CN204042326U - Without the heat insulation structure of heat bridge loss

Info

Publication number: CN204042326U
Application number: CN201420451976.6U
Authority: CN
Inventors: 刘作君; 刘勋; 刘拯堃
Original assignee: PEIXIAN KELI NEW ENERGY-SAVING MATERIALS PLANT
Current assignee: PEIXIAN KELI NEW ENERGY-SAVING MATERIALS PLANT
Priority date: 2014-08-11
Filing date: 2014-08-11
Publication date: 2014-12-24
Anticipated expiration: 2024-08-11

Abstract

The utility model discloses a kind of heat insulation structure without heat bridge loss, comprise the upper shell (1) and lower shell (2) that cooperatively interact, the cross section of upper and lower shell is U-type groove structure, be the semicircle of same radius inside U-type groove, two semicircular is encircled into the circumference for wrapping up pipeline (4); Be semiellipse outside the U-type groove of upper shell, this semielliptical semi-major axis is positioned at longitudinal direction; The outside of the U-type groove structure of lower shell is semiellipse, and this semielliptical semi-major axis is positioned at transverse direction; The semi-minor axis length of upper shell is consistent with the semimajor axis length of lower shell.This insulating structure can reduce the heat bridge loss in transmission, improves the efficiency of transmission of medium, improves shell raw material availability, and method of construction is simple, quick simultaneously.

Description

Without the heat insulation structure of heat bridge loss

Technical field

The utility model relates to a kind of heat insulation structure, is specifically related to a kind of heat insulation structure without heat bridge loss, belongs to pipeline heat-insulating technology field.

Background technique

Pipeline when fed sheet of a media can with surrounding environment generation heat exchange, produce heat loss, use middle discovery, horizontal pipe is in Transfer Medium process, heat is not scatter and disappear to surrounding uniformly, but conduit upper heat loss is many, bottom heat loss is few, and external insulation shell many employings consistency of thickness of current horizontal pipe, this structural design, in medium transportation process, shell top can be caused still to have heat loss to fall because there is heat bridge effect, good heat insulation effect cannot be played, simultaneously pipeline bottom due to heat loss few, adopt the shell structure with top same thickness, cause the waste being incubated raw material, increase cost.

The simultaneously on-the-spot painting type of the many employings of form of construction work of existing pipe insulation shell or bundling type, although the thermal-insulating pipe case overall structure density that painting type makes is relatively more even, speed of application is slow, difficulty large, is not well positioned to meet the requirement of pipeline Fast Construction; And section bar bundling type makes thermal-insulating pipe case, need first to carry out shell, it be banded on pipeline after its drying again, long construction period, energy consumption is large, although installation speed is fast, still there is the loss of obvious heat bridge in shell.

Summary of the invention

For above-mentioned prior art Problems existing, the utility model provides a kind of heat insulation structure without heat bridge loss and method of construction thereof, the insulating structure that pipeline is installed can reduce the heat bridge loss in transmission, improve the efficiency of transmission of medium, improve thermal insulating material utilization ratio, method of construction is simple, quick simultaneously.

To achieve these goals, a kind of heat insulation structure without heat bridge loss that the utility model adopts, comprise the upper shell and lower shell that cooperatively interact, the cross section of described upper shell and lower shell is U-type groove structure, be the semi-circular structure of same radius inside the U-type groove of upper and lower shell, two semicircular structure is encircled into the circumference for wrapping up pipeline;

The outside of the U-type groove structure of described upper shell is semiellipse, and this semielliptical semi-major axis is positioned at longitudinal direction;

The outside of the U-type groove structure of described lower shell is semiellipse, and this semielliptical semi-major axis is positioned at transverse direction;

The outside semielliptical semi-minor axis length of upper shell is consistent with the semielliptical semimajor axis length outside lower shell, for upper shell together with lower shell Matching installation.

Further, the semimajor axis length in the outside semiellipse of upper shell be the 1.2-1.3 of semi-minor axis length doubly.

Further, the semi-minor axis length in the outside semiellipse of lower shell be the 0.7-0.8 of semimajor axis length doubly.

Further, upper and lower shell is made up of thermal insulating material, is wound around thermal radiation reflecting screen between upper and lower shell and pipeline.

The thermal-insulating pipe case that the utility model provides is upper thick and lower thin structure, the upper shell of U-type groove is and lower shell forms by cross section, the outside of upper shell is semiellipse, longitudinal length is greater than lateral length, in the heat loss process of therefore conduit upper, upper shell can be incubated to greatest extent, reduces heat bridge loss; The outside of lower shell is also half-oval shaped, and longitudinal length is less than lateral length, and because pipeline heat loss is down few, therefore lower shell of the present utility model is while playing good insulation, saves thermal insulating material cost; The method of construction of the utility model shell is simple, and operation easily completes, and installation efficiency is high.

Accompanying drawing explanation

Fig. 1 is upper shell structure schematic diagram of the present utility model;

Fig. 2 is lower shell structure schematic diagram of the present utility model;

Fig. 3 is thermal-insulating pipe case scheme of installation of the present utility model;

Fig. 4 is shell mould structure schematic diagram of the present utility model;

Fig. 5 is blade structure schematic diagram of the present utility model;

In figure: 1, upper shell, 2, lower shell, 3, thermal radiation reflecting screen, 4, pipeline.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

A kind of heat insulation structure without heat bridge loss, comprise the upper shell 1 and lower shell 2 that cooperatively interact, as depicted in figs. 1 and 2, the cross section of upper shell 1 and lower shell 2 is U-type groove structure, be the semi-circular structure of same radius inside the U-type groove of upper and lower shell, two semicircular structure is encircled into the circumference for wrapping up pipeline 4; The outside of the U-type groove structure of upper shell 1 is semiellipse, and this semielliptical semi-major axis is positioned at longitudinal direction, and therefore on this, the longitudinal size of shell 1 is large, can heat be prevented to greatest extent upwards to scatter and disappear; The outside of the U-type groove structure of lower shell 2 is semiellipse, and this semielliptical semi-major axis is positioned at transverse direction, and the longitudinal size of lower shell 2 is little, can meet the thermal requirements of pipeline 4 bottom, and compared with conventional vacuum pipe, the materials of this lower shell 2 are few, and cost is low; As shown in Figure 3, the outside semielliptical semi-minor axis length of upper shell 1 is consistent with the semielliptical semimajor axis length outside lower shell 2, guarantees that upper shell 1 is together with lower shell 2 energy Matching installation.

As further improvement of the utility model, the semimajor axis length in the outside semiellipse of upper shell 1 is 1.2-1.3 times of semi-minor axis length; Semi-minor axis length in the outside semiellipse of lower shell 2 is 0.7-0.8 times of semimajor axis length, and this size design can farthest reduce ducted heat loss, improve pipe insulation efficiency, and installation cost is minimum.

As further improvement of the utility model, upper and lower shell is made up of thermal insulating material, and the reflecting effect being wound around thermal radiation reflecting screen 3 pairs of thermal radiation energy between upper and lower shell and pipeline 4 is good, is combined can improves heat insulation effect several times with thermal insulating material.

During to thermal-insulating pipe case construction of the present utility model,

1) first line size as required, make the upper and lower shell mould as Fig. 4 needs, the groove size in shell mould is according to the upper and lower shell size design of pipeline 4 thermal-insulating pipe case;

2) in lower shell mould, 3-5 bar cloth is put in advance, thermal radiation reflecting screen 3 is added again respectively in upper and lower shell mould, reflecting screen is arranged on the position near pipeline 4, filled thermal insulation materials is used again around reflecting screen, shell mould inside thermal conservation material materials uniformity is made by scraper plate, and the semi-circular structure of the quick upper and lower shell of striking, after upper and lower shell mould inside thermal conservation material is shaping, by upper and lower shell matched moulds together;

3) remove shell mould, with the cloth in lower shell mould, upper and lower shell is fixed together, then take lower shell mould away, finally with glass fibre cloth, upper and lower shell is wound in one, obtains the thermal-insulating pipe case needed.

Embodiment one

(1) by normal pipe insulation thickness for 0.5m designs, manufacture shape as the shell mould of Fig. 4, groove size in shell mould is consistent with the side dimension of upper and lower shell, the semi-major axis being specially half-oval shaped outside shell is 0.6-0.65m, semi-minor axis is 0.5m, outside lower shell, the semi-major axis of half-oval shaped is 0.5m, and semi-minor axis is 0.35m-0.4m;

(2) after adding 3-5 bar cloth in downward shell mould, composite silicate thermal insulation material is added in shell mould, then by shape blade structure as shown in Figure 5, semi-circular plate shape on this scraper plate is consistent with line size, semi-circular plate on use scraper plate is fast by shaping for the semi-circular structure inside upper and lower shell, again the thermal insulating material of other parts in mould is scraped uniformity, after the thermal insulating material in shell mould is shaping, by upper and lower shell mould matched moulds;

(3), after taking shell mould away, with cloth by fixing for upper and lower shell binding, then take lower shell mould away, finally with glass fibre cloth, upper and lower shell is fastened integrally, obtains the thermal-insulating pipe case needed;

(4) install after thermal-insulating pipe case, measure the temperature of thermal-insulating pipe case upper/lower terminal, install the thermal-insulating pipe case of existing upper and lower consistency of thickness simultaneously, measure its temperature, obtain result be analyzed with the present embodiment, result is as following table 1, table 2.

Embodiment two

(1) by normal pipe insulation thickness for 0.5m designs, manufacture shape as the shell mould of Fig. 4, groove size in shell mould is consistent with the side dimension of upper and lower shell, the semi-major axis being respectively half-oval shaped outside shell is 0.6-0.65m, semi-minor axis is 0.5m, outside lower shell, the semi-major axis of half-oval shaped is 0.5m, and semi-minor axis is 0.35m-0.4m;

(2) after adding 3-5 bar cloth in downward shell mould, thermal radiation reflecting screen 3 is first added in shell mould, reflecting screen is arranged on the position near pipeline 4, fill with composite silicate thermal insulation material again around reflecting screen, then by shape blade structure as shown in Figure 5, semi-circular plate shape on this scraper plate is consistent with line size, semi-circular plate on use scraper plate is fast by shaping for the semi-circular structure inside upper and lower shell, again the thermal insulating material of other parts in mould is scraped uniformity, after the thermal insulating material in shell mould is shaping, by upper and lower shell mould matched moulds;

(4) measure the temperature of thermal-insulating pipe case upper/lower terminal after thermal-insulating pipe case being installed, contrast with result in embodiment one, table 1 specific as follows, table 2.

Table 1 thermal-insulating pipe case external skin temperatures (winter temperature)

?	Reference examples	Embodiment one	Embodiment two
				Upper shell external skin temperatures/DEG C	36-38	32	30
Lower shell external skin temperatures/DEG C	30	32	30

Table 2 thermal-insulating pipe case external skin temperatures (summer temp)

?	Reference examples	Embodiment one	Embodiment two
				Upper shell external skin temperatures/DEG C	46-49	42	40
Lower shell external skin temperatures/DEG C	40.5	42	39.5

Table 1 in analysis, table 2 finds, identical pipeline is adopted respectively to the thermal-insulating pipe case of traditional consistency of thickness, embodiment one, when the shell of embodiment two is incubated, the temperature measured at one time is different respectively, traditional shell is due to upper and lower consistency of thickness, therefore shell top heat loss is many, measuring temperature is in the winter time 36-38 DEG C, temperature of lower is 30 DEG C, and to be only added with temperature in the embodiment one of thermal insulating material be 32 DEG C, on, lower shell external skin temperatures is consistent, compared with conventional vacuum shell, in the upper shell of embodiment one, heat loss obviously reduces, effectively play heat insulation effect, and in embodiment two, the basis of thermal insulating material additionally adds the shell of thermal radiation reflecting screen, its upper and lower shell external skin temperatures is respectively 30 DEG C, heat insulation effect improves several times than traditional shell, simultaneously also superior than the shell heat insulation effect only used thermal insulation material, result in table 2 also can obviously be found out, adopt the thermal-insulating pipe case of upper thick and lower thin structure of the present utility model, heat insulation effect is more effective than conventional vacuum shell.

Thermal-insulating pipe case of the present utility model, can obviously fall without heat bridge effect, effectively improve medium transmission efficiency, improves heat insulation effect, and simultaneously shell is installed, constructed simple and convenient, operates easy.

Claims

1. the heat insulation structure without heat bridge loss, it is characterized in that, comprise the upper shell (1) and lower shell (2) that cooperatively interact, the cross section of described upper shell (1) and lower shell (2) is U-type groove structure, be the semi-circular structure of same radius inside the U-type groove of upper and lower shell (1,2), two semicircular structure is encircled into the circumference for wrapping up pipeline (4);

The outside of the U-type groove structure of described upper shell (1) is semiellipse, and this semielliptical semi-major axis is positioned at longitudinal direction;

The outside of the U-type groove structure of described lower shell (2) is semiellipse, and this semielliptical semi-major axis is positioned at transverse direction;

The outside semielliptical semi-minor axis length of upper shell (1) is consistent with the semielliptical semimajor axis length in lower shell (2) outside, for upper shell (1) and lower shell (2) Matching installation together.

2. a kind of heat insulation structure without heat bridge loss according to claim 1, is characterized in that, the semimajor axis length in the outside semiellipse of described upper shell (1) is 1.2-1.3 times of semi-minor axis length.

3. a kind of heat insulation structure without heat bridge loss according to claim 1 and 2, is characterized in that, the semi-minor axis length in the outside semiellipse of described lower shell (2) is 0.7-0.8 times of semimajor axis length.

4. a kind of heat insulation structure without heat bridge loss according to claim 1, it is characterized in that, described upper and lower shell (1,2) is made up of thermal insulating material, is wound around thermal radiation reflecting screen (3) between upper and lower shell (1,2) and pipeline (4).