CN217951445U

CN217951445U - Prefabricated built on stilts utility tunnel heat preservation fixing support structure

Info

Publication number: CN217951445U
Application number: CN202222357374.1U
Authority: CN
Inventors: 王云超; 宋倩倩; 温成; 黄小如
Original assignee: Jiangsu Longying Pipeline New Material Co ltd
Current assignee: Jiangsu Longying Pipeline New Material Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-12-02
Anticipated expiration: 2032-09-06

Abstract

The utility model provides a prefabricated built on stilts utility tunnel heat preservation fixing support structure, including the work steel pipe, the cover is equipped with outer protecting steel pipe on the work steel pipe, outer protecting steel pipe is protected steel pipe axial butt welding firmly by first outer protecting steel pipe and second outward and is formed, welded fastening has an inner ring plate on the work steel pipe outer wall, welded fastening has first outer crown plate on the one end inner wall that first outer protecting steel pipe is close to the outer protecting steel pipe of second, welded fastening has the outer crown plate of second on the one end inner wall that the outer protecting steel pipe of second is close to first outer protecting steel pipe, the inner ring plate is located between first outer crown plate and the outer crown plate of second, all press from both sides the ring packing piece that is equipped with between inner ring plate and the outer crown plate of first outer crown plate and second. The heat bridge problem is solved by clamping the low heat transfer coefficient gasket between the inner ring plate and the outer ring plate, and the integral heat loss of the long-distance pipe network is obviously reduced; the outer steel pipe two parts constitute, weld outer annular plate and reinforcing floor on outer steel pipe earlier during the preparation, can solve the location that back welding floor space is narrow and small to cause, weld difficulty and quality problem.

Description

Prefabricated built on stilts utility tunnel heat preservation fixing support structure

Technical Field

The utility model relates to a central heating hot-water pipe network technical field, in particular to prefabricated built on stilts utility tunnel heat preservation fixing support structure.

Background

With the urgent requirements of energy conservation, emission reduction, consumption reduction and environmental protection of power plants, along with the development of cities, the construction of central heating, particularly long-distance pipeline networks, is more and more, and overhead pipelines account for a certain proportion in the construction of the long-distance pipeline networks. In addition, the popularization of the state to the comprehensive pipe gallery makes the pipeline gallery imperative. The related national departments also compile the related standards of the prefabricated overhead and comprehensive pipe gallery hot water heat-insulating pipes and pipe fittings. However, the conventional fixing bracket has the following problems:

1. the fixed clamping plate needs to be welded on a working steel pipe, and the fixed clamping plate needs to be peeled off on site and welded in a heat preservation manner;

2. even if the fixing support is prefabricated in a factory, the heat bridge loss of the fixing clamp plate part is not solved, and the heat loss is huge. Especially for long heat transfer network projects, hundreds of fixed supports may exist, and the heat loss of the whole network is considerable.

3. The design idea of ring plate and clamping plate is adopted in the existing related patents, but the steel plate is connected with the steel plate, the problem of thermal bridge is not thoroughly solved, only the contact surface is reduced, the heat preservation thickness of a hot water pipe network is generally 50-80mm, the gap between a working steel pipe and an outer protecting pipe is limited, and the positioning and welding of the clamping plate are difficult.

Therefore, to the not enough that prior art exists, it is necessary to design a built on stilts utility tunnel heat preservation fixing support structure of prefabricated to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough among the above-mentioned prior art, the utility model aims to provide a prefabricated built on stilts utility tunnel heat preservation fixing support structure.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: the utility model provides a prefabricated built on stilts utility tunnel heat preservation fixed bolster structure, includes the work steel pipe, the cover is equipped with outer guard steel pipe on the work steel pipe, outer guard steel pipe is formed by first outer guard steel pipe and the axial butt welding of second outer guard steel pipe, welded fastening has an interior crown plate on the work steel pipe outer wall, welded fastening has a first outer crown plate on the first outer guard steel pipe is close to the one end inner wall of second outer guard steel pipe, welded fastening has a second outer crown plate on the second outer guard steel pipe is close to the one end inner wall of first outer guard steel pipe, interior crown plate is located between first outer crown plate and the second outer crown plate, interior crown plate with all press from both sides the annular gasket that is equipped with between first outer crown plate and the second outer crown plate, the annular gasket adopts the material preparation of low heat transfer coefficient, high compressive strength to form.

The preferable technical scheme is as follows: the annular gasket is made of tetrafluoroethylene plates or asbestos plates.

The preferable technical scheme is as follows: and a positioning supporting block is adopted between the working steel pipe and the outer protecting steel pipe for supporting and filling polyurethane.

The preferable technical scheme is as follows: and reinforcing rib plates are arranged on one sides of the first outer ring plate and the second outer ring plate, which are far away from the inner ring plate.

The preferable technical scheme is as follows: the outer wall of the outer protecting steel pipe is welded with a double-sided baffle and a supporting seat.

Because of the application of the technical scheme, the utility model discloses the beneficial effect who has does:

firstly, a mode of clamping a gasket with a low heat transfer coefficient between an inner annular plate and an outer annular plate is adopted, so that the problem of a heat bridge can be effectively solved, and the integral heat loss of a long-distance pipe network is remarkably reduced.

And secondly, the device is prefabricated in a factory, the product quality can be better guaranteed, and the device is particularly suitable for large-pipe-diameter and large-thrust supports. Not only reduces the labor intensity of installation, but also reduces the economic loss caused by damage to heat preservation in site construction.

And thirdly, the outer protective steel pipe is composed of two parts, the outer ring plate and the ribbed plate are firstly welded on the outer protective steel pipe during manufacturing, and then the outer ring plate and the ribbed plate are sleeved on the working steel pipe for butt welding, so that not only is the construction simple, but also the problems of positioning, welding difficulty and quality caused by narrow space of the later welded ribbed plate are solved.

Drawings

Fig. 1 is a schematic view of the present invention.

Detailed Description

The following description is given for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely required to be horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, for the utility model provides a built on stilts utility tunnel heat preservation fixing support structure of prefabricated, including work steel pipe 1. The working steel pipe 1 is sleeved with an outer protecting steel pipe, and the outer protecting steel pipe is formed by axially butt-welding a first outer protecting steel pipe 21 and a second outer protecting steel pipe 22. An inner ring plate 3 is welded and fixed on the outer wall of the working steel pipe 1, a first outer ring plate 41 is welded and fixed on the inner wall of one end, close to the second outer protection steel pipe 22, of the first outer protection steel pipe 21, a second outer ring plate 42 is welded and fixed on the inner wall of one end, close to the first outer protection steel pipe 21, of the second outer protection steel pipe 22, and the inner ring plate 3 is arranged between the first outer ring plate 41 and the second outer ring plate 42. Annular gaskets 5 are respectively clamped between the inner annular plate 3 and the first outer annular plate 41 as well as between the inner annular plate and the second outer annular plate 42, and the annular gaskets 5 are made of materials with low heat transfer coefficient and high compressive strength.

Furthermore, the annular gasket 5 is made of tetrafluoroethylene plates or asbestos plates, and can play a role in cutting off a heat bridge between the inner and outer ring plates.

Furthermore, a positioning support block 6 is adopted between the working steel pipe 1 and the outer protection steel pipe for supporting (in order to ensure that the relative positions of the working steel pipe 1 and the outer protection steel pipe are unchanged) and polyurethane 7 is filled, and the polyurethane 7 foams to fill the gap, so that the whole support forms a whole through the filling of the polyurethane 7.

Furthermore, reinforcing ribs 8 are provided on both sides of the first outer ring plate 41 and the second outer ring plate 42 away from the inner ring plate 3. The reinforcing rib plate 8 is in a triangular plate shape, one right-angle side of the reinforcing rib plate 8 is fixedly welded with the inner wall of the outer protective steel pipe, and the other right-angle side of the reinforcing rib plate 8 is fixedly welded with the outer ring plate.

Further, the outer wall of the outer protecting steel pipe is welded with a double-sided baffle 9 and a supporting seat 10, and the double-sided baffle 9 is clamped on two sides of the steel structure pipe frame to play a role in fixing.

The specification and material of the working steel pipe 1 is the same as that of a straight pipe, and is generally Q235-B or 20#. The inner ring plate 3 and the working steel pipe 1 are welded firmly, the thrust meets the design requirement, and the steel plate is made of a Q235-A steel plate.

Therefore, the utility model has the advantages of it is following:

firstly, the mode of clamping a low heat transfer coefficient gasket between an inner ring plate and an outer ring plate can effectively solve the problem of heat bridge, and the overall heat loss of the long-distance pipeline network is remarkably reduced.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a built on stilts utility tunnel heat preservation fixing support structure of prefabricated, includes the work steel pipe, its characterized in that: the outer protection steel pipe is formed by axially butt-welding a first outer protection steel pipe and a second outer protection steel pipe, an inner ring plate is fixedly welded on the outer wall of the working steel pipe, a first outer ring plate is fixedly welded on the inner wall of one end, close to the second outer protection steel pipe, of the first outer protection steel pipe, a second outer ring plate is fixedly welded on the inner wall of one end, close to the first outer protection steel pipe, of the second outer protection steel pipe, the inner ring plate is arranged between the first outer ring plate and the second outer ring plate, annular gaskets are arranged between the inner ring plate and the first outer ring plate and between the second outer ring plate in a clamping mode, and the annular gaskets are made of materials with low heat transfer coefficients and high compressive strengths.

2. The utility model provides a prefabricated built on stilts utility tunnel heat preservation fixing support structure of claim 1 which characterized in that: the annular gasket is made of tetrafluoroethylene plates or asbestos plates.

3. The utility model provides a prefabricated built on stilts utility tunnel heat preservation fixing support structure of claim 1 which characterized in that: and a positioning support block is adopted between the working steel pipe and the outer protecting steel pipe to support and fill polyurethane.

4. The built on stilts utility tunnel of prefabricating of claim 1 keeps warm fixing support structure, its characterized in that: and reinforcing rib plates are arranged on one sides of the first outer ring plate and the second outer ring plate, which are far away from the inner ring plate.

5. The utility model provides a prefabricated built on stilts utility tunnel heat preservation fixing support structure of claim 1 which characterized in that: the outer wall of the outer protecting steel pipe is welded with a double-sided baffle and a supporting seat.