CN220337699U

CN220337699U - Prefabricated directly buried heat preservation pipe joint structure

Info

Publication number: CN220337699U
Application number: CN202322083766.8U
Authority: CN
Inventors: 杨彦奇; 田建忠
Original assignee: Henan Yiyang Pipe Technology Co ltd
Current assignee: Henan Yiyang Pipe Technology Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-01-12
Anticipated expiration: 2033-08-04

Abstract

The utility model relates to the field of heat preservation pipe connection structures, in particular to a prefabricated directly-buried heat preservation pipe joint structure. Including two connectors, the connector includes the external member, and the annular is seted up to external member one end, and the recess is seted up to external member inner edge one end and is made the external member inboard form the step, and sliding seal is connected with the fender ring in the recess, and the step is spacing to the fender ring, and fixed sealing is connected with the plug bush in the fender ring, plug bush outer fringe and external member inner edge sliding seal connection of recess one side. According to the utility model, the sleeve in sliding sealing connection is arranged in the sleeve of the connector, when two adjacent heat preservation pipes are connected, the sleeves of the two adjacent connectors on the two adjacent heat preservation pipes can relatively move and are in plug connection, so that the heat preservation pipes do not need to be moved in the process of connecting the two adjacent connectors, time and labor are saved in the process of connecting the two heat preservation pipes, the cooperation of hoisting equipment is not needed, and a large amount of manpower is not needed to be consumed.

Description

Prefabricated directly buried heat preservation pipe joint structure

Technical Field

The utility model relates to the field of heat preservation pipe connection structures, in particular to a prefabricated directly-buried heat preservation pipe joint structure.

Background

The prefabricated directly buried heat insulating pipe consists of a working steel pipe, a polyurethane heat insulating layer and a polyethylene outer protecting pipe, wherein the polyurethane heat insulating layer is foamed plastic, and the polyurethane foamed plastic is formed by mixing two chemical liquids and then performing chemical reaction. The prefabricated directly buried heat preservation pipes are limited in manufacturing length in factories, and after the prefabricated directly buried heat preservation pipes with limited lengths are placed in a pipe ditch, two adjacent working steel pipes of the prefabricated directly buried heat preservation pipes are connected together by a joint. The prefabricated direct-buried heat-insulating pipe is widely applied to the transportation of high-temperature liquid, is an engineering material with good heat-insulating performance, low engineering cost and safety and reliability, not only has advanced technology and practical performance which are difficult to compare with the traditional ditches and overhead laying pipelines, but also has obvious social benefit and economic benefit, and is a powerful measure for heat supply and energy conservation.

The patent document with the application number of CN202221327071.9 discloses a joint structure capable of improving the sealing performance of connection of two adjacent heat insulation pipes, when the joint structure is required to be used for connection between a first direct-buried heat insulation pipe and a second direct-buried heat insulation pipe, the joint structure is fixedly sleeved on a port of the first direct-buried heat insulation pipe through the first sealing joint, the joint structure is fixedly sleeved on a port of the second direct-buried heat insulation pipe, then the second sealing joint is spliced in the first sealing joint for preliminary connection of the first direct-buried heat insulation pipe and the second direct-buried heat insulation pipe, after the second sealing joint is spliced in the first sealing joint, a first heat shrinkage sealing belt is adopted for connection of the joint of the second sealing joint and the first sealing joint, so that the connection of the first sealing joint and the second sealing joint is fixed, then the sealing sleeve is sleeved on the first sealing joint and the second sealing joint and is fixedly sleeved on the port of the first sealing joint and between the first sealing joint and the second sealing joint, and the second sealing joint is filled with the first sealing joint, and finally the joint is shrunk on the second sealing joint, and finally the heat insulation pipe is shrunk and the connection is completed. However, in the process of inserting the second sealing connector into the first sealing connector, the first directly buried insulating pipe or the second directly buried insulating pipe needs to be moved, so that the second sealing connector is inserted into the first sealing connector, lifting equipment is required to be matched with or a large amount of manpower is consumed for integrally moving the directly buried insulating pipe, and trouble is avoided in the process of connecting the two directly buried insulating pipes.

Disclosure of Invention

The utility model aims to solve the technical problems that the prefabricated directly-buried heat-insulating pipe joint structure is convenient to connect, does not need hoisting equipment to cooperate in the process of connecting two adjacent heat-insulating pipes, does not need to consume a great deal of manpower, and can improve the connecting efficiency of the two adjacent heat-insulating pipes.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model provides a prefabricated directly buries insulating tube joint structure, includes two connectors, and the connector includes the external member, and the annular has been seted up to external member one end, and the recess has been seted up to external member inner edge one end and has been made the external member inboard form the step, and sliding seal is connected with the fender ring in the recess, and the step is spacing to the fender ring, and fixed sealing is connected with the plug bush in the fender ring, and the plug bush outer fringe is with the external member inner edge sliding sealing connection of recess one side.

In two connectors, the diameter of the plug bush of one connector is greater than the diameter of the plug bush of the other connector, and the plug bush that the diameter is great cup joints in the plug bush outside that the diameter is less, and the insulating tube is fixed in the annular of external member, and two plug bush outside sleeves of cup joint connection are equipped with interior seal cover, and two external member seals are pegged graft in outer seal cover, and the packing has sealing material between interior seal cover and the outer seal cover.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the sleeve in sliding sealing connection is arranged in the sleeve of the connector, when two adjacent heat preservation pipes are connected, the sleeves of the two adjacent connectors on the two adjacent heat preservation pipes can relatively move and are in plug connection, so that the heat preservation pipes do not need to be moved in the process of connecting the two adjacent connectors, time and labor are saved in the process of connecting the two heat preservation pipes, the cooperation of hoisting equipment is not needed, and a large amount of manpower is not needed to be consumed.

2. After the two plug bushes of the two connectors are connected in a plugging manner, the two plug bushes are locked by using screws, and the inner sealing sleeve, the sealing material and the outer sealing sleeve are matched to realize the reinforced sealing of the two plug bushes, so that the sealing performance is good after the two connectors are connected.

Drawings

FIG. 1 is a schematic view of a larger diameter sleeve mated with a sleeve.

Fig. 2 is a front view of a larger diameter sleeve mated with a sleeve.

Fig. 3 is a cross-sectional view taken along direction a in fig. 2.

Fig. 4 is a cross-sectional view of the two connectors after they are connected.

Fig. 5 is a cross-sectional view of the kit.

Fig. 6 is a schematic view of a smaller diameter sleeve mated with a sleeve.

The names of the parts in the drawings are as follows:

1. kit of parts

2. Annular groove

3. Groove

4. Baffle ring

5. Plug bush

6. Inlay sleeve

7. Perforating the hole

8. Thermal insulation pipe

9. Inner sealing sleeve

10. Sealing material

11. External sealing sleeve

12. Step

13. And (3) a threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 4, a prefabricated directly buried thermal insulation pipe joint structure comprises two connectors.

The connector comprises a sleeve 1. As shown in fig. 5, one end of the sleeve member 1 is provided with a ring groove 2, one end of the inner edge of the sleeve member 1 is provided with a groove 3, and the inner side of the sleeve member 1 is provided with a step 12.

Referring to fig. 1, 2, 3 and 6, a baffle ring 4 is connected in a sliding and sealing manner in the groove 3, a step 12 limits the baffle ring 4, a plug bush 5 is fixedly connected in the baffle ring 4 in a sealing manner, and the outer edge of the plug bush 5 is connected in a sliding and sealing manner with the inner edge of the sleeve member 1 on one side of the groove 3. The inner edge of the sleeve member 1 on one side of the groove 3 is fixedly provided with a plurality of groups of sealing rings, and the outer edge of the plug bush 5 is in sliding sealing connection with the inner edge of the sleeve member 1 on one side of the groove 3 through the sealing rings.

Referring to fig. 4, in the two connectors, the diameter of the insert 5 of one connector is larger than the diameter of the insert 5 of the other connector.

Referring to fig. 4, the insulating tube 8 is fixed in the ring groove 2 of the sleeve 1. After the end part of the heat preservation pipe 8 is inserted into the ring groove 2, the heat preservation pipe 8 can be adhered, fixed and hermetically connected with the sleeve 1. The heat preservation pipe 8 can be welded, fixed and hermetically connected with the sleeve 1.

The plug bush 5 with larger diameter is sleeved outside the plug bush 5 with smaller diameter, sealing adhesive can be smeared outside the plug bush 5 with smaller diameter, the plug bush 5 with larger diameter is sleeved outside the plug bush 5 with smaller diameter, and the sealing adhesive can bond, fix and seal the plug bush 5 with larger diameter and the plug bush 5 with smaller diameter. The outer sides of the two sleeved sleeves 5 in sleeved connection are sleeved with an inner sealing sleeve 9, and the two sleeve members 1 are in sealed plug connection in an outer sealing sleeve 11. The inner sealing sleeve 9 and the outer sealing sleeve 11 are heat-shrinkable sealing sleeves.

A sealing material 10 is filled between the inner sealing sleeve 9 and the outer sealing sleeve 11. The sealing material 10 is a sealant.

The outer edges of the insert sleeves 5 are embedded and fixed with insert sleeves 6, the outer edges of the insert sleeves 6 are parallel and level with the outer edges of the insert sleeves 5 where the insert sleeves 6 are arranged, and the insert sleeves 6 are made of metal materials.

Referring to fig. 4, the insert 6 on the insert 5 with a larger diameter is located at the end of the insert 5 with a larger diameter, the insert 6 on the insert 5 with a smaller diameter is located at the middle of the insert 5 with a smaller diameter, a plurality of holes 7 are uniformly distributed on the circumference of the insert 6 on the insert 5 with a larger diameter, the holes 7 penetrate through the insert 5 with a larger diameter, a plurality of threaded holes 13 are uniformly distributed on the circumference of the insert 6 on the insert 5 with a smaller diameter, the number of the holes 7 is equal to that of the threaded holes 13, the holes 7 correspond to the threaded holes 13, and after penetrating through the holes 7, screws are in threaded connection with the threaded holes 13.

When two adjacent heat preservation pipes 8 need be connected, install two connectors of this joint structure at heat preservation pipe 8 end respectively, when connector and heat preservation pipe 8 end connection for heat preservation pipe 8 end grafting is in annular 2 of external member 1, and with heat preservation pipe 8 and external member 1 fixed sealing connection. The outer gland 11 is then fitted over one of the connectors.

After two connectors of the joint structure are respectively arranged at the opposite ends of two adjacent heat preservation pipes 8, an inner sealing sleeve 9 is sleeved on a sleeve 5 with a larger diameter in advance.

The outer edge of the smaller-diameter plug bush 5 is coated with sealing adhesive, and then the larger-diameter plug bush 5 and the smaller-diameter plug bush 5 are relatively moved, so that the larger-diameter plug bush 5 is sleeved outside the smaller-diameter plug bush 5, and the insert 6 on the larger-diameter plug bush 5 is positioned outside the insert 6 on the smaller-diameter plug bush 5.

The sealing adhesive can bond and fix the plug bush 5 with larger diameter and the plug bush 5 with smaller diameter.

The screw penetrates through the hole 7 and then is connected with the threaded hole 13, so that the insertion sleeve 5 with the larger diameter and the insertion sleeve 5 with the smaller diameter are further reinforced and fixed.

The inner sealing sleeve 9 is then moved so that the inner sealing sleeve 9 is located outside the insert 5 with the larger diameter and the insert 5 with the smaller diameter, and the insert 5 with the larger diameter and the insert 5 with the smaller diameter are reinforced and sealed by the inner sealing sleeve 9.

Subsequently, the outer sealing sleeve 11 is moved such that the outer sealing sleeve 11 is located outside the two sets 1, and the sealing material 10 is filled between the inner sealing sleeve 9 and the outer sealing sleeve 11. Finally, the two sleeve members 1 are connected in a sealing way by using the outer sealing sleeve 11.

According to the utility model, the sleeve 5 in sliding sealing connection is arranged in the sleeve 1 of the connectors, when two adjacent heat preservation pipes 8 are connected, the sleeve 5 of two adjacent connectors on the two adjacent heat preservation pipes 8 can relatively move and are in plug connection, so that the heat preservation pipes 8 do not need to be moved in the process of connecting the two adjacent connectors, time and labor are saved in the process of connecting the two heat preservation pipes 8, lifting equipment is not needed to cooperate, and a large amount of manpower is not needed to be consumed.

After the two plug bushes 5 of the two connectors are connected in a plugging manner, the two plug bushes 5 are locked by using screws, and the inner sealing sleeve 9, the sealing material 10 and the outer sealing sleeve 11 are matched to realize reinforced sealing of the two plug bushes 5, so that the sealing performance is good after the connection of the two connectors is completed.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a prefabricated directly buried thermal insulation pipe joint structure, including two connectors, its characterized in that, the connector includes external member (1), annular (2) have been seted up to external member (1) one end, recess (3) have been seted up to external member (1) inner edge one end and make external member (1) inboard form step (12), sliding seal is connected with in recess (3) keeps off ring (4), step (12) carries out spacingly to keep off ring (4), fixed sealing is connected with plug bush (5) in keeping off ring (4), plug bush (5) outer fringe and external member (1) inner edge sliding seal of recess (3) one side connect; in two connectors, the diameter of plug bush (5) of one connector is greater than the diameter of plug bush (5) of another connector, and plug bush (5) that the diameter is great cup joints in the smaller plug bush (5) outside of diameter, and insulating tube (8) are fixed in annular (2) of external member (1), and two plug bush (5) outside cover of cup jointing are equipped with interior seal cover (9), and two external member (1) are sealed to be pegged graft in outer seal cover (11), and packing has sealing material (10) between interior seal cover (9) and outer seal cover (11).

2. The prefabricated direct-buried heat-insulation pipe joint structure according to claim 1, wherein a plurality of groups of sealing rings are fixed on the inner edge of the sleeve (1) on one side of the groove (3), and the outer edge of the plug bush (5) is in sliding sealing connection with the inner edge of the sleeve (1) on one side of the groove (3) through the sealing rings.

3. The prefabricated direct-buried heat-insulation pipe joint structure according to claim 1, wherein the outer edges of the inserts (5) are fixedly embedded with inserts (6), the inserts (6) on the inserts (5) with larger diameters are located at the ends of the inserts (5) with larger diameters, the inserts (6) on the inserts (5) with smaller diameters are located in the middle of the inserts (5) with smaller diameters, a plurality of holes (7) are uniformly distributed on the circumferences of the inserts (6) on the inserts (5) with larger diameters, a plurality of threaded holes (13) are uniformly distributed on the circumferences of the inserts (6) on the inserts (5) with smaller diameters, the number of the holes (7) is equal to that of the threaded holes (13), the holes (7) correspond to the threaded holes (13), and after the screws penetrate through the holes (7), the screws are in threaded connection with the threaded holes (13).

4. A prefabricated directly buried thermal insulation pipe joint structure according to claim 3, wherein the outer edge of the insert sleeve (6) is flush with the outer edge of the insert sleeve (5) where the insert sleeve is located, and the insert sleeve (6) is made of metal.

5. The prefabricated direct-buried thermal insulation pipe joint structure according to claim 1, wherein the inner sealing sleeve (9) and the outer sealing sleeve (11) are heat-shrinkable sealing sleeves.

6. The prefabricated directly buried insulating pipe joint structure according to claim 1, characterized in that the sealing material (10) is a sealant.