CN104455941A

CN104455941A - Insulation pipe connector

Info

Publication number: CN104455941A
Application number: CN201410631769.3A
Authority: CN
Inventors: 孔凡荣; 李志明
Original assignee: GUIZHOU QIANNAN TECHNOLOGY PLASTIC INDUSTRY Co Ltd
Current assignee: GUIZHOU QIANNAN TECHNOLOGY PLASTIC INDUSTRY Co Ltd
Priority date: 2014-11-11
Filing date: 2014-11-11
Publication date: 2015-03-25
Anticipated expiration: 2034-11-11
Also published as: CN104455941B

Abstract

The invention discloses an insulation pipe connector and belongs to the technical field of water heating pipeline connection. The insulation pipe connector comprises an elastic cushion, an end cover, a pipe sleeve, a sealing ring A, a sealing ring B and an inner pipe body. The end cover is movably connected with the end cover, the sealing ring A, the pipe sleeve and the elastic cushion are sequentially installed between the inner pipe body and the end cover, the sealing ring B is located on a step end face in the inner pipe body, an insulation layer is arranged outside the inner pipe body and is made of polyurethane foaming plastic, a cavity is defined between the insulation layer and the inner pipe body, and an outer pipe body is further arranged outside the inner pipe body. According to the technical scheme, the insulation layer is arranged between the inner pipe body and the outer pipe body, meanwhile, the cavity is reserved between the inner pipe body and the insulation layer through the structural design of the inner pipe body, the double-insulation effect is achieved through insulation in a material isolation type and the insulation principle of an air convection prevention type, heat transfer is reduced to the maximum, and the heat loss at the pipe connector is reduced.

Description

A kind of pipe joint of insulation

Technical field

The invention belongs to plumbing pipe interconnection technique field, relate to a kind of pipe joint for heating installation conveying, especially relate to a kind of pipe joint of insulation.

Background technique

Along with urban infrastructure is perfect gradually, the heating system such as heating installation, floor heating enters huge numbers of families thereupon, the working principle of heating installation is the hot water that gone out by burning in boiler or steam enter in building radiator by pipeline, heat falls apart in indoor air by radiator, room temperature is raised, reach the effect of heating, belong to a kind of form of thermal-radiation heating.Ducted hot water or steam are called heating installation by people usually, and heating installation, after the local heating such as the boiler room of concentrated heating, needs by Cemented filling in the man of resident family that needs heat, must through tens of even Cemented filling of up to a hundred meters to destination.Heating installation is in pipe conveying procedure, and heat loss is very large, and particularly when heating for the first time, the heat lost in the duct is even close to the half of initial heat.In recent years, in order to reduce the heat loss in heating conveying tube road, conveyance conduit surface is wrapped up often through thermal insulating material, comprise pipe joint, all insulation material is coated for switches etc., to reduce heat loss to greatest extent, but this mode engineering work load is larger, and it is specious to affect pipeline, maintenance inconvenience, be tending towards superseded, so there is the diversified conveyance conduit possessing heat insulation function, the patent of invention being 200910093535.7 as application number discloses a kind of trimerical composite thermal insulation pipe, combined layer by layer by novel thermal insulating material and conveyance conduit, reach and be incubated and reduce the effect of product cost.Along with new technology not very upgrades, the product comparative maturity of insulation pipe, but the pipe joint of an indispensable part in connecting as pipeline, the problem of same existence heat transfer rapid heat dissipation, people are because it only have ignored its heat dissipating capacity in the use of pipe joint place, but pipe joints all in a pipeline is added up and will be found, the heat loss at pipe joint place is also a constituent element of can not ignore of heat loss in thermo-insulating pipe line.

Summary of the invention

In order to solve the problem, the invention provides a kind of pipe joint of insulation, to reach good heat insulation effect.

The present invention is achieved by following technical solution.

A kind of pipe joint of insulation, comprise bullet pad, end cap, pipe box, seal ring A, seal ring B and interior tube body, described end cap is flexibly connected with interior tube body, seal ring A, pipe box and bullet pad are installed successively between interior tube body and end cap, described seal ring B is positioned on the step end face of interior tube body inside, is provided with thermal insulation layer outside described interior tube body, and the material of thermal insulation layer is urethane foam, surround cavity between described thermal insulation layer and interior tube body, interior tube body is also provided with outer tube body outward.

Be provided with seal ring C between described outer tube body and end cap, described seal ring C is rubber o-ring; Described seal ring A is bowl-type rubber seal; Described outer tube body inwall is provided with radial strip bulge structure, and described interior tube body two greatly end outer wall is provided with the groove structure corresponding with outer tube body protruding structure; Described end cap and interior tube body are threaded connection.

The invention has the beneficial effects as follows:

The pipe joint of a kind of insulation of the present invention, by establishing thermal insulation layer between interior tube body and outer tube body, simultaneously by the structural design of interior tube body, reserved cavity between interior tube body and thermal insulation layer, with the insulation of material isolates formula and the heat preservation principle preventing air convection, reach the effect of Double insulating, reduce heat trnasfer to greatest extent, reduce the heat loss at pipe joint place; By being directly socketed between outer tube body and interior tube body, two ends are locked by end cap, by the sealing of O type circle between end cap and outer tube body, avoid the impurity such as outside liquid to infiltrate thermal insulation layer, pollute, corrode, affect heat insulation effect to it; Matched with the protruding structure in outer tube body by the groove structure on interior tube body, prevent from relatively rotating between interior tube body and outer tube body, thus when preventing dismounting end cap, situation about cannot dismantle of skidding occurs.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the cross section structure schematic diagram of A-A in Fig. 1;

Fig. 3 is the structural representation of interior tube body in the present invention;

Fig. 4 is the side view of interior tube body in the present invention;

Fig. 5 is the structural representation of the present invention when being connected with pipe.

In figure: 1-bullet pad, 2-end cap, 3-pipe box, 4-seal ring A, 5-seal ring B, 6-cavity, 7-thermal insulation layer, 8-interior tube body, 801-groove structure, 9-outer tube body, 901-protruding structure, 10-seal ring C, 11-pipe.

Embodiment

Technological scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, the pipe joint of a kind of insulation of the present invention, comprise bullet pad 1, end cap 2, pipe box 3, seal ring A4, seal ring B5 and interior tube body 8, described end cap 2 is flexibly connected with interior tube body 8, between interior tube body 8 and end cap 2, install seal ring A4, pipe box 3 and bullet pad 1 successively, described seal ring B5 is positioned on the step end face of interior tube body 8 inside, is fixed by end cap 2, described seal ring A4 is bowl-type rubber seal, and described bullet pad 1 is stainless steel; Be provided with thermal insulation layer 7 outside described interior tube body 8, the material of thermal insulation layer 7 is urethane foam, surrounds cavity 6 between described thermal insulation layer 7 and interior tube body 8, and interior tube body 8 is outer is also provided with outer tube body 9; Described end cap 2 is threaded connection with interior tube body 8, and outer tube body is just in time fixed by the end cap 2 at two ends, moving axially of restriction outer tube body.

Seal ring C10 is provided with between described outer tube body 9 and end cap 2, to seal the connecting sewing between outer tube body 9 and end cap 2, outside liquid and impurity is avoided to enter in outer tube body 9, affect pipe fitting heat insulation effect, described seal ring C10 is rubber o-ring, in seal ring C10 installation place, outer tube body 9 end face and end cap 2 end face are all processed with arc mounting groove, for the position of fixed seal ring C10.

Described outer tube body 9 inwall is provided with radial strip bulge structure 901, described interior tube body 8 liang greatly end outer wall is provided with the groove structure 801 corresponding with outer tube body 9 protruding structure 901, protruding structure 901 on outer tube body 9 inwall combines with the groove structure 801 on interior tube body 8, prevent outer tube body 9 and interior tube body 8 from relatively rotating and skidding, causing cannot dismounting end cap 2; Meanwhile, the protruding structure 901 in stage casing is just in time positioned at thermal insulation layer 7 and adds the structural joint place stayed man-hour, is filled with the space that thermal insulation layer 7 structural joint is recessed.

During Product Assembly, first thermal insulation layer 7 is wrapping on the concave surface in interior tube body 8 stage casing, the tension of thermal insulation layer 7 two ends is bonding, the groove structure 801 that cemented side seam and interior tube body 8 liang are held greatly is just to forming straight line, the groove structure 801 that the protruding structure 901 1 of outer tube body 9 rectifies internal body one end is set on interior tube body 8, protruding structure 901 in outer tube body 9, simultaneously by the connecting sewing place of thermal insulation layer 7, is filled up sinking of connecting sewing place, and is fixed by thermal insulation layer 7; Then seal ring B5 is installed on two ends, the stage casing step end face in interior tube body 8, then be arranged on port first order step outwardly by uncovered for seal ring A4, pipe box 3 is installed again, seal ring A4 pushes down by pipe box 3, prevent it from moving axially, in pipe box 3 outer end, bullet pad 1 is installed, the shell fragment of bullet pad 1 inner ring all tilts to interior tube body 8 internal direction, finally end cap 2 is connected fastening with interior tube body 8 port, realize bullet pad 1 axially locating, realize the axial restraint of outer tube body 9 and the sealing at connecting sewing place, outer tube body 9 two ends simultaneously, complete pipe fitting assembling.

When pipe 11 is installed, as shown in Figure 5, directly by pipe 11 one end from end cap 2 center hole inserting pipe elements, until pipe 7 end face is close to seal ring B5 end face, now, the seal ring B5 in pipe 11 end face and interior tube body 8 between step end face forms first and seals; Meanwhile, seal ring A4 struts by pipe 11, and pipe 11 outer wall and seal ring A4 fit, and forms second sealing; And the shell fragment of bullet pad 1 inner ring is also pushed open by pipe 11, shell fragment, by unidirectional for pipe 11 clamping, reaches the effect of retaining, and pipe 11 is not easily got loose; During dismounting pipe 11, only end cap 2 need be backed out, taken out from interior tube body 8 by pipe 11, now bullet pad 1, pipe box 3 and seal ring A4 can be enclosed within pipe 11 outer wall and together be taken out, and seal ring A4, pipe box 3 and bullet pad 1 are carefully taken off successively.

Claims

1. the pipe joint of an insulation, comprise bullet pad (1), end cap (2), pipe box (3), seal ring A (4), seal ring B (5) and interior tube body (8), described end cap (2) is flexibly connected with interior tube body (8), seal ring A (4) is installed successively between interior tube body (8) and end cap (2), pipe box (3) and bullet pad (1), described seal ring B (5) is positioned on the inner step end face of interior tube body (8), it is characterized in that: outside described interior tube body (8), be provided with thermal insulation layer (7), cavity (6) is surrounded between described thermal insulation layer (7) and interior tube body (8), interior tube body (8) is also provided with outer tube body (9) outward.

2. the pipe joint of a kind of insulation according to claim 1, is characterized in that: be provided with seal ring C (10) between described outer tube body (9) and end cap (2).

3. the pipe joint of a kind of insulation according to claim 1, is characterized in that: described outer tube body (9) inwall is provided with radial strip bulge structure (901).

4. the pipe joint of a kind of insulation according to claim 1, is characterized in that: described interior tube body (8) two greatly end outer wall is provided with the groove structure (801) corresponding with outer tube body (9) protruding structure (901).

5. the pipe joint of a kind of insulation according to claim 1, is characterized in that: the material of described thermal insulation layer (7) is urethane foam.

6. the pipe joint of a kind of insulation according to claim 1, is characterized in that: described end cap (2) and interior tube body (8) are threaded connection.

7. the pipe joint of a kind of insulation according to claim 2, is characterized in that: described seal ring C (10) is rubber o-ring.

8. the pipe joint of a kind of insulation according to claim 1, is characterized in that: described seal ring A (4) is bowl-type rubber seal.