CN211344360U

CN211344360U - Flexible composite high-pressure conveying pipe pressure test connecting structure

Info

Publication number: CN211344360U
Application number: CN201922230583.8U
Authority: CN
Inventors: 高雄; 黄文安
Original assignee: Xianyang Xinde'an New Material Technology Co ltd
Current assignee: Xianyang Xinde'an New Material Technology Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-25
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a flexible composite high-pressure conveying pipe pressure test connecting structure in the field of pipeline pressure measuring equipment, which aims to solve the problem of connection between a testing pipe and a water conveying pipe; it includes the inner core pipe of being connected with the test tube port, outer tube and seal end, still include the inner core pipe of coming the connection with raceway orientation test tube one end, outer tube and seal end, be equipped with the ready-packaged joint connection between two seal end, the ready-packaged joint includes the connecting pipe with two seal end intercommunications, arbitrary connecting pipe is equipped with the fixed pipe of being connected with another connecting pipe towards the distolateral side of another connecting pipe, fixed inside pipe wall and the laminating of connecting pipe outer wall, the connecting pipe all is equipped with two ring platforms on the outer wall of fixed pipe both sides, form the draw-in groove between two ring platforms, fixed pipe all is equipped with the cutting ferrule with the ring platform butt towards the distolateral side of ring platform, all be equipped with at least one gag lever post that. The utility model discloses have the effect that improves raceway and test tube connection stability.

Description

Flexible composite high-pressure conveying pipe pressure test connecting structure

Technical Field

The utility model belongs to the technical field of the technique of pipeline pressure measurement equipment and specifically relates to a flexible compound high pressure conveyer pipe pressure testing connection structure is related to.

Background

The flexible composite pipe is composed of three structures, namely an inner plastic layer, an outer plastic layer and a reinforced layer formed by compounding fiber reinforced materials between the inner plastic layer and the outer plastic layer, has the characteristics of high pressure bearing capacity, simple construction, good flexibility and the like, and is widely applied to the fields of domestic and foreign oil and gas fields, ocean engineering and the like at present. At present, the connection modes of the flexible composite pipe joint mainly comprise welding, sealing flanges, threaded connection and the like, and the currently adopted connection modes are difficult to construct and install, have low strength and cannot carry out high-pressure fluid conveying and high-pressure tests.

The prior Chinese patent with publication number CN208793861U discloses a joint for testing pressure of a flexible composite tube, which comprises an inner core tube bushing, an inner core tube, an outer sleeve and a sealing end head, the inner core pipe comprises an inner core pipe unidirectional tooth structure, an inner core pipe right-end male thread, a boss and an inner core pipe left-end conical male thread, the right side of the boss is the inner core pipe right-end male thread, the right side of the inner core pipe right-end male thread is an inner core pipe long straight section, the outer side of the inner core pipe long straight section is the inner core pipe unidirectional tooth structure, the left side of the boss is the inner core pipe left-end conical male thread, the inner core pipe right-end male thread is in threaded connection with the outer sleeve, and the inner core pipe left-end conical male thread is in threaded connection with the sealing end.

The flexible composite pipe is arranged in a gap between the inner core pipe and the outer sleeve, the inner core pipe is connected with the outer sleeve through threads, and the flexible composite pipe is fixed and sealed through the radial compression effect between the outer side of the long straight section of the inner core pipe and the one-way teeth on the inner side of the long straight section of the outer sleeve. After the flexible composite pipe is fixed, the inner core pipe bushing moves from inside to outside to extrude the inner wall of the flexible composite pipe by the inner core pipe, the outer sleeve extrudes the outer wall of the flexible composite pipe by the reducing die, the experiment joint extrudes the inner wall and the outer wall of the flexible pipe in two directions, the left end of the inner core pipe is fixedly connected with the sealing end through taper threads, the middle through hole of the sealing end is connected with the pressure test quick-assembly joint, and then water is added into the flexible composite pipe through the water delivery pipe connected with the pressure test quick-assembly joint.

The above prior art solutions have the following drawbacks: after the sealing end through hole is connected with the pressure test quick connector, the ordinary quick connector is likely to be separated after being subjected to high pressure due to the fact that large pressure exists in a pipeline during pressure test.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a flexible compound high pressure feed pipe pressure testing connection structure, it has the condition that reduces two connecting pipes and receive pressure emergence deformation and separation, improves the effect of the leakproofness that two connecting pipes are connected.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a pressure test connecting structure of a flexible composite high-pressure conveying pipe comprises an inner core pipe (1) respectively connected with the inner walls of a test pipe (16) and a water conveying pipe (17), and an outer sleeve (11) respectively connected with the outer walls of the test pipe (16) and the water conveying pipe (17), wherein a sealing end (12) is connected to the inner core pipe (1), a quick connector is arranged between the two sealing ends and comprises connecting pipes communicated with the two sealing ends, the end surfaces of the two connecting pipes are mutually abutted, a fixing pipe connected with the other connecting pipe is arranged on the end side, facing the other connecting pipe, of any connecting pipe, the inner wall of the fixing pipe is attached to the outer wall of the connecting pipe, two ring platforms are arranged on the outer walls of the two sides of the connecting pipe, a clamping groove is formed between the two ring platforms, and clamping sleeves abutted to the ring platforms are arranged on the end sides, facing the, the clamping sleeve is provided with at least one limiting rod penetrating through the clamping sleeve and the clamping groove, and the side wall of the clamping sleeve is provided with a through hole at least allowing the limiting rod to penetrate through.

Through adopting above-mentioned technical scheme, install inner core pipe, outer tube and seal end on the port of test tube and the port of raceway, with the stable installation of connecting pipe on the port of test tube and raceway, establish fixed pipe at two connection outside covers, make two connecting pipes butt. Then, the limiting rod penetrates through the clamping sleeve and the clamping groove, the limiting rod fixes the connecting pipe in the fixed pipe through the ring platform, and the limiting rod is abutted against the through hole and the ring platform to limit the movement of the connecting rod along the axial direction of the connecting rod; the connecting end face of the connecting pipe is wrapped by the fixing pipe, and the pressure resistance of the two connecting pipes in the axial direction is improved. The removal of fixed pipe, cutting ferrule and gag lever post restriction connecting pipe is in the same place two stable connections of connecting pipe, reduces two connecting pipes and receives the condition that pressure takes place to warp and separate, improves the leakproofness that two connecting pipes are connected. During the connection, only two connecting pipes need to be penetrated into the fixed pipe, the limiting rods are inserted to complete the connection of the water conveying pipe and the test pipe, the operation is convenient, the time required for connecting the water conveying pipe and the test pipe is reduced, and the test efficiency is improved.

The utility model discloses further set up to: the length of the limiting rod along the axial direction of the connecting pipe is consistent with the distance between the two ring platforms on the same connecting pipe, and the inner wall of the through hole is attached to the outer wall of the limiting rod.

By adopting the technical scheme, the limiting rod can be abutted against the opposite inner walls of the two ring tables, so that the slippage between the limiting rod and the connecting pipe is reduced; the gag lever post also with the inner wall butt of through-hole, reduces the skew of gag lever post and cutting ferrule. The utility model discloses a connecting pipe fixed pipe and cutting ferrule, including the connecting pipe, the connecting pipe is fixed to the connecting pipe.

The utility model discloses further set up to: the limiting rods are provided with two mutually parallel limiting rods.

Through adopting above-mentioned technical scheme, two gag lever posts that are parallel to each other are located the ring platform butt of the relative both sides of connecting rod respectively, make the both sides of connecting rod all receive limiting displacement, and the even atress in both sides of connecting rod improves the stability that connecting rod and cutting ferrule are connected.

The utility model discloses further set up to: and one end side of each limiting rod is provided with a connecting rod.

Through adopting above-mentioned technical scheme, the setting of connecting rod couples together two gag lever posts, can two gag lever posts of simultaneous control through gripping the connecting rod, improves the efficiency of installing two gag lever posts. Meanwhile, the connecting rod can also play a limiting role, the connecting rod can be abutted to the outer sleeve of the clamping sleeve after the limiting rod is installed, and the situation that the limiting rod slides down from the clamping groove and the clamping sleeve is reduced.

The utility model discloses further set up to: the connecting rod is laminated with the outer wall of the clamping sleeve.

Through adopting above-mentioned technical scheme, the connecting rod is unanimous with the shape of cutting ferrule outer wall, and the gag lever post passes the through-hole, and the outer wall butt of connecting rod and cutting ferrule can reduce the deformation of connecting rod when using with the connecting rod of cutting ferrule outer wall laminating, reduces the condition that leads to the gag lever post to warp because of the connecting rod warp, reduces the gag lever post card in the condition of through-hole department, improves the stability that gag lever post and connecting rod used.

The utility model discloses further set up to: one end of the limiting rod, which deviates from the connecting rod, is provided with a conical head.

Through adopting above-mentioned technical scheme, setting up of conical head makes the gag lever post pass through-hole and draw-in groove more easily, improves the efficiency of installation gag lever post.

The utility model discloses further set up to: and the outer wall of the opposite end side of the two connecting pipes is provided with an annular groove, and a sealing ring is arranged in the annular groove.

Through adopting above-mentioned technical scheme, the leakproofness between sealing washer improvement connecting pipe and the fixed tube inner wall, the draw-in groove can make stable being connected with the connecting pipe of sealing washer, reduces the condition that the sealing washer drops from the draw-in groove, improves the stability of the sealed effect of sealing washer.

The utility model discloses further set up to: and the two connecting pipes are arranged in a way of deviating from each other by end face fillets.

Through adopting above-mentioned technical scheme, the connecting pipe terminal surface that the fillet set up makes the fixed pipe of entering that the connecting pipe can be easier, reduces the time of connecting fixed pipe and connecting pipe, improves the efficiency of connecting test tube and raceway.

To sum up, the utility model discloses a beneficial technological effect does:

1. the matching of the fixed rod, the clamping sleeve and the limiting rod improves the pressure resistance of the two connecting pipes perpendicular to the connecting pipes;

2. the two parallel limiting rods enable the two sides of the connecting rod to be limited, so that the connecting stability of the connecting rod and the clamping sleeve is improved;

3. the sealing ring in the ring groove improves the stability of the sealing effect of the sealing ring.

Drawings

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

Fig. 2 is a schematic view of the connection structure of the inner core tube and the outer sleeve according to the present invention.

Fig. 3 is a schematic view of the quick-mounting joint structure of the present invention.

Reference numerals: 1. an inner core tube; 11. an outer sleeve; 12. sealing the end head; 13. an inner core tube liner; 14. a unidirectional tooth structure; 15. quick coupler; 16. a test tube; 17. a water delivery pipe; 2. a connecting pipe; 21. a ring groove; 22. a seal ring; 3. a fixed tube; 31. a card sleeve; 32. a limiting rod; 33. a conical head; 34. a connecting rod; 35. a through hole; 4. a ring platform; 41. a clamping groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the pressure test connection structure for the flexible composite high-pressure delivery pipe comprises an inner core pipe 1 connected with a port of a test pipe 16, an outer sleeve 11 and a sealing end 12, and further comprises the inner core pipe 1, the outer sleeve 11 and the sealing end 12 which are connected with one end of a water delivery pipe 17 facing the test pipe 16, wherein a liner of the inner core pipe 1 is arranged inside the inner core pipe 1. The outer wall of the inner core tube 1 and the inner wall of the outer sleeve 11 are provided with unidirectional tooth structures 14; the outer side of the inner core tube 1 is connected with the outer sleeve 11 and the sealing end 12 through threads, and the flexible composite test and water conveying pipe 17 is arranged in a gap formed after the inner core tube 1 is connected with the outer sleeve 11. The flexible composite test tube 16 and the water delivery pipe 17 are arranged in a gap between the inner core tube 1 and the outer sleeve 11, the inner core tube 1 is connected with the outer sleeve 11 through threads, and the test tube 16 and the water delivery pipe 17 are fixed through radial compression between the outer side of the inner core tube 1 and the one-way teeth on the inner side of the outer sleeve 11; after the flexible composite pipe is fixed, the lining of the inner core pipe 1 moves from inside to outside to extrude the inner wall of the flexible composite pipe by the inner core pipe 1, the outer sleeve 11 extrudes the outer wall of the flexible pipe by the outer sleeve 11 through a reducing die, the inner wall and the outer wall of the test pipe 16 and the water conveying pipe 17 are bidirectionally extruded, and the inner core pipe 1 is fixedly connected with the sealing end 12 through threads.

As shown in fig. 1 and 3, in order to improve the pressure resistance of the joint between the water pipe 17 and the test pipe 16, a quick coupler 15 is arranged between the two sealing end heads 12, the quick coupler 15 comprises a connecting pipe 2 communicated with the two sealing end heads 12, and in this embodiment, the connecting pipe 2 is welded on the sealing end heads 12; the mutual butt of terminal surface of two connecting pipes 2, arbitrary connecting pipe 2 is equipped with the fixed pipe 3 of being connected with another connecting pipe 2 towards distolateral of another connecting pipe 2, the laminating of 3 inner walls of fixed pipe and 2 outer walls of connecting pipe, connecting pipe 2 all is equipped with two ring platforms 4 on the outer wall of fixed pipe 3 both sides, form draw-in groove 41 between two ring platforms 4, fixed pipe 3 all is equipped with the cutting ferrule 31 with the 4 butt of ring platform towards distolateral of ring platform 4, all be equipped with at least one gag lever post 32 that passes cutting ferrule 31 and draw-in groove 41 on the cutting ferrule 31, the cutting ferrule 31 lateral wall is equipped with the through-hole 35 that supplies gag lever post 32 to pass at least, in this embodiment, cutting ferrule 31.

As shown in fig. 3, in order to further improve the stability of the connection between the two connecting pipes 2 and the ferrule 31, two parallel limiting rods 32 are provided. The length of the limiting rod 32 along the axial direction of the connecting pipe 2 is consistent with the distance between the two annular platforms 4 on the same connecting pipe 2, and the inner wall of the through hole 35 is attached to the outer wall of the limiting rod 32.

As shown in fig. 3, in order to improve the sealing performance between the connecting pipe 2 and the fixed pipe 3, ring grooves 21 are provided on the outer walls of the two connecting pipes 2 on the opposite end sides, and sealing rings 22 attached to the inner walls of the ring grooves 21 are provided in the ring grooves 21.

As shown in fig. 3, in order to further improve the efficiency of manufacturing the two position-limiting rods 32, a connecting rod 34 is disposed at one end of each of the two position-limiting rods 32, and both ends of the connecting rod 34 are fixedly connected to the two position-limiting rods 32. In this embodiment, the connecting rod 34 and the stopper rod 32 are integrally provided; the two ends of the connecting rod 34 are jointed with the outer wall of the clamping sleeve 31 through the connecting rod 34. In this embodiment, the connecting pipe 2, the ferrule 31 and the fixing pipe 3 are all set as circular pipes, so the connecting rod 34 is arc-shaped and the arc surface faces one side of the limiting rod 32. The end of the limiting rod 32 facing away from the connecting rod 34 is provided with a conical head 33, the tip of the conical head 33 faces the end side facing away from the limiting rod 32.

As shown in fig. 3, the two connecting pieces 2 are arranged with rounded end faces facing away from each other. The connecting tube 2 can be conveniently entered into the fixed tube 3.

The implementation principle of the embodiment is as follows: the inner core tube 1, the outer sleeve 11 and the sealing end 12 are arranged on the port of the test tube 16 and the port of the water pipe 17, and the connecting tube 2 is stably arranged on the ports of the test tube 16 and the water pipe 17. The opposite ends of the two connecting pipes 2 are passed through the clamping sleeve 31 and enter the fixed pipe 3, so that the end surfaces of the two connecting pipes 2 are abutted. Then holding the connecting rod 34, enabling one end provided with the conical head 33 to face the through hole 35, enabling the limiting rod 32 to penetrate through the clamping sleeve 31 and the clamping groove 41, enabling the limiting rod 32 to fix the connecting pipe 2 in the fixed pipe 3 through the annular table 4, and limiting the movement of the connecting rod 34 along the axial direction of the connecting rod by the abutting of the limiting rod 32 and the through hole 35 and the annular table 4; fixed pipe 3 wraps up connecting pipe 2 connection terminal surface simultaneously, improves two connecting pipes 2 perpendicular and connecting pipe 2 axial direction's compressive capacity.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a flexible compound high pressure conveyer pipe pressure testing connection structure, includes inner core pipe (1) with test tube (16) and raceway (17) inner wall connection respectively, outer tube (11) with test tube (16) and raceway (17) outer wall connection respectively, be connected with seal end (12), its characterized in that on inner core pipe (1): a quick connector (15) is arranged between the two sealing end heads (12), the quick connector (15) comprises connecting pipes (2) communicated with the two sealing end heads (12), the end surfaces of the two connecting pipes (2) are mutually abutted, a fixed pipe (3) connected with another connecting pipe (2) is arranged on the end side of any connecting pipe (2) facing to another connecting pipe (2), the inner wall of the fixed pipe (3) is attached to the outer wall of the connecting pipe (2), the connecting pipe (2) is provided with two ring platforms (4) on the outer walls of the two sides of the fixed pipe (3), a clamping groove (41) is formed between the two ring platforms (4), the end side of the fixed pipe (3) facing to the ring platform (4) is provided with a clamping sleeve (31) abutted to the ring platform (4), and the clamping sleeve (31) is provided with at least one limiting rod (32) penetrating through the clamping sleeve (31) and the clamping groove (41), the side wall of the clamping sleeve (31) is provided with a through hole (35) at least for the limiting rod (32) to pass through.

2. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 1, characterized in that: the length of the limiting rod (32) along the axial direction of the connecting pipe (2) is consistent with the distance between the two ring platforms (4) on the same connecting pipe (2), and the inner wall of the through hole (35) is attached to the outer wall of the limiting rod (32).

3. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 1, characterized in that: the limiting rods (32) are provided with two parallel limiting rods.

4. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 3, characterized in that: and one end side of each of the two limiting rods (32) is provided with a connecting rod (34).

5. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 4, characterized in that: the connecting rod (34) is attached to the outer wall of the clamping sleeve (31).

6. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 4, characterized in that: one end of the limiting rod (32) departing from the connecting rod (34) is provided with a conical head (33).

7. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 1, characterized in that: two be equipped with annular (21) on the relative terminal side outer wall of connecting pipe (2), be equipped with sealing washer (22) in annular (21).

8. The pressure test connection structure of the flexible composite high-pressure delivery pipe according to claim 1, characterized in that: and the two connecting pipes (2) are arranged in a way of end surface round angles deviating from each other.