CN217005489U

CN217005489U - Heat exchanger connecting pipe

Info

Publication number: CN217005489U
Application number: CN202123127560.8U
Authority: CN
Inventors: 吴伯赞; 顾明华
Original assignee: Shanghai Dace Clean Technology Co ltd
Current assignee: Shanghai Dace Clean Technology Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-07-19
Anticipated expiration: 2031-12-14

Abstract

The utility model belongs to the technical field of pipeline connection, and particularly relates to a heat exchanger connecting pipe which comprises a connecting pipe body, wherein the connecting pipe body comprises a wear-resistant layer and a strength layer, the surface of the connecting pipe body is fixedly connected with a first fixing ring, one side of the first fixing ring is connected with a first sealing ring, the surface of the connecting pipe body is connected with a sealing sleeve in a sliding manner, one end of the sealing sleeve is in contact with one side of the first fixing ring, the other end of the sealing sleeve is connected with a second fixing ring, and a second sealing ring is connected between the second fixing ring and the inner wall of the sealing sleeve. According to the utility model, through the mutual matching among the sealing sleeve, the first sealing ring and the second sealing ring, when the connecting pipe body is connected with an external pipe fitting through the fixed pipe, a double sealing effect is achieved, and the connecting pipe is more rapid and convenient to install with the external pipe fitting, so that the operation time of workers can be reduced, and the practicability is stronger.

Description

Heat exchanger connecting pipe

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a heat exchanger connecting pipe.

Background

An exchanger, also called heat exchanger or heat exchange device, is a device for transferring heat from a hot fluid to a cold fluid to meet the specified process requirements, an industrial application of convective and conductive heat transfer, which can be classified in different ways. The operation process can be divided into three categories of dividing wall type, mixed type and heat accumulating type; heat exchangers, which are devices that transfer part of the heat of a hot fluid to a cold fluid, are also called heat exchangers. The heat exchanger is a common device in chemical industry, petroleum industry, power industry, food industry and other industrial departments, and plays an important role in production. The heat exchanger can be used as a heater, a cooler, a condenser, an evaporator and a reboiler in chemical production, and is more widely applied.

At present, the heat exchanger connecting pipe structure that has now on the market is too simple, and when very that guaranteed this connecting pipe and outside pipe connection, can install fast, can guarantee the problem of leakproofness again, if the connecting pipe is connected sealed relatively poorly with outside pipe connection, the condition of seepage appears very easily, when especially expend with heat and contract with cold, leads to the fluid to spill over, causes great economic loss. To this end, a heat exchanger connection tube is proposed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a heat exchanger connecting pipe, which solves the problems that the existing heat exchanger connecting pipe is too simple in structure, the quick installation is difficult to guarantee, and the sealing performance can be guaranteed.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

a heat exchanger connecting pipe comprises a connecting pipe body, wherein the connecting pipe body comprises a wear-resistant layer and a strength layer, a first fixing ring is fixedly connected to the surface of the connecting pipe body, a first sealing ring is connected to one side of the first fixing ring, a sealing sleeve is slidably connected to the surface of the connecting pipe body, one end of the sealing sleeve is in contact with one side of the first fixing ring, a second fixing ring is connected to the other end of the sealing sleeve, a second sealing ring is connected between the second fixing ring and the inner wall of the sealing sleeve, the inner wall of the second sealing ring is in sliding connection with the surface of the first sealing ring, a fixing pipe communicated with the sealing sleeve is connected to the other end of the second fixing ring, the inner wall of the fixing pipe is in sliding connection with the surface of the connecting pipe body, the second fixing ring is in contact with the first fixing ring and penetrates through a positioning screw rod, and the surface of the positioning screw rod is in threaded connection with a fixing nut.

Further, the inner wall of the wear-resistant layer is fixedly connected with the surface of the strength layer, the wear-resistant layer is alloy steel, and the strength layer is aluminum magnesium alloy.

Further, the surface of the first fixing ring and the second fixing ring is respectively provided with a corresponding circular hole, and the inner wall of the circular hole is in contact with the surface of the positioning screw rod.

Further, the shape of the first fixing ring and the second fixing ring is circular, and the surface thickness of the first fixing ring is equal to that of the second fixing ring.

Further, the surface diameter of the first sealing ring is two thirds of the surface diameter of the second sealing ring, and the surface thickness of the first sealing ring is equal to that of the second sealing ring.

Further, the inner wall of the fixed pipe is provided with an internal thread which is used for being in threaded connection with an external pipe fitting, and the surface diameter of the fixed pipe is matched with the surface diameter of the connecting pipe body.

(III) advantageous effects

Compared with the prior art, the utility model provides a heat exchanger connecting pipe which has the following beneficial effects:

1. according to the utility model, through the mutual matching among the sealing sleeve, the first sealing ring and the second sealing ring, when the connecting pipe body is connected with an external pipe fitting through the fixed pipe, a double sealing effect is achieved, and the connecting pipe is more rapid and convenient to install with the external pipe fitting, so that the operation time of workers can be reduced, and the practicability is stronger.

2. According to the utility model, the strength and the wear-resisting property of the whole connecting pipe body can be effectively improved by combining the wear-resisting layer and the strength layer, so that the service life of the connecting pipe body is further prolonged.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a connection structure of the sealing sleeve and the second retaining ring according to the present invention;

FIG. 3 is a schematic view of the connection structure of the connection tube body and the first fixing ring of the present invention;

FIG. 4 is a schematic view of the connecting tube body according to the present invention.

In the figure: 1. a connecting pipe body; 101. a wear resistant layer; 102. a strength layer; 2. a first retaining ring; 3. a first seal ring; 4. sealing the sleeve; 5. a second retaining ring; 6. a second seal ring; 7. a fixed tube; 8. positioning a screw rod; 9. fixing a nut; 10. a circular hole; 11. and (4) internal threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, 2 and 3, a heat exchanger connecting pipe according to an embodiment of the present invention includes a connecting pipe body 1, the connecting pipe body 1 includes a wear layer 101 and a strength layer 102, a first fixing ring 2 is fixedly connected to a surface of the connecting pipe body 1, a first sealing ring 3 is connected to one side of the first fixing ring 2, a sealing sleeve 4 is slidably connected to a surface of the connecting pipe body 1, one end of the sealing sleeve 4 contacts with one side of the first fixing ring 2, a second fixing ring 5 is connected to the other end of the sealing sleeve 4, a second sealing ring 6 is connected between the second fixing ring 5 and an inner wall of the sealing sleeve 4, an inner wall of the second sealing ring 6 is slidably connected to a surface of the first sealing ring 3, a fixing pipe 7 communicated with the sealing sleeve 4 is connected to the other end of the second fixing ring 5, and an inner wall of the fixing pipe 7 is slidably connected to a surface of the connecting pipe body 1, the second fixing ring 5 and the first fixing ring 2 are contacted with each other and a positioning screw rod 8 penetrates through each other, the surface of the positioning screw rod 8 is connected with a fixing nut 9 through threads, when in use, the sealing sleeve 4 is firstly sleeved on the surface of the connecting pipe body 1, so that the surface of the connecting pipe body 1 is in sliding contact with the inner wall of the fixing pipe 7, the second sealing ring 6 connected between the inner wall of the sealing sleeve 4 and the second fixing ring 5 is in sliding contact on the surface of the first sealing ring 3, at the moment, the first fixing ring 2 is in mutual contact with the second fixing ring 5, the positioning screw rod 8 penetrates between the first fixing ring 2 and the second fixing ring 5 through the circular hole 10, then the fixing nut 9 is rotated on the surface of the positioning screw rod 8, when the fixing nut 9 is in contact with one side of the first fixing ring 2, the first fixing ring 2 and the second fixing ring 5 can be fixed together, and the inner wall of the fixing pipe 7 is provided with an internal thread 11, can carry out threaded connection with outside pipe fitting, this connecting pipe body 1 both has improved the leakproofness that connecting pipe body 1 is connected with outside pipe fitting under the use of sealing sleeve 4, first sealing ring 3 and second sealing ring 6, can be convenient for again install fast with outside pipe fitting.

As shown in fig. 4, in some embodiments, the inner wall of the wear layer 101 is fixedly connected to the surface of the strength layer 102, the wear layer 101 is alloy steel, the strength layer 102 is aluminum-magnesium alloy, the connection pipe body 1 is composed of the wear layer 101 and the strength layer 102, the wear layer 101 is alloy steel, and the strength layer 102 is aluminum-magnesium alloy, so that the connection pipe body 1 can effectively improve the strength and wear resistance of the steel pipe under the combination of the wear layer 101 and the strength layer 102, and can prolong the service life of the connection pipe body 1.

As shown in fig. 1, in some embodiments, the surfaces of the first fixing ring 2 and the second fixing ring 5 are respectively provided with corresponding circular holes 10, and the inner walls of the circular holes 10 contact with the surface of the positioning screw rod 8, wherein the circular holes 10 are designed according to the end diameter of the positioning screw rod 8, so that the positioning screw rod 8 can be ensured to contact and penetrate along the inner walls of the circular holes 10, and the first fixing ring 2 and the second fixing ring 5 can be conveniently mounted.

As shown in fig. 1, in some embodiments, the first fixing ring 2 and the second fixing ring 5 are both circular, the surface thickness of the first fixing ring 2 is equal to the surface thickness of the second fixing ring 5, and the shapes and the sizes of the first fixing ring 2 and the second fixing ring 5 are the same, so that the first fixing ring 2 and the second fixing ring 5 can be fitted to each other, which also facilitates the fixing between the first fixing ring 2 and the second fixing ring 5.

As shown in fig. 2 and 3, in some embodiments, the diameter of the first sealing ring 3 is two thirds of the diameter of the second sealing ring 6, the thickness of the first sealing ring 3 is equal to that of the second sealing ring 6, and the surface of the first sealing ring 3 and the inner wall of the second sealing ring 6 are contacted with each other to improve the sealing performance of the connection pipe body 1 and the external pipe.

As shown in fig. 1, in some embodiments, the inner wall of the fixing tube 7 is provided with an internal thread 11 for being in threaded connection with an external pipe, the surface diameter of the fixing tube 7 is matched with the surface diameter of the connecting tube body 1, wherein the internal thread 11 is provided on the inner wall of the fixing tube 7, so that the fixing tube 7 can be connected with the external pipe conveniently, the space between the connecting tube body 1 and the external pipe can be increased, the installation is convenient, and the working time of workers is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchanger connecting pipe, comprising a connecting pipe body (1), characterized in that: the connecting pipe body (1) comprises a wear-resistant layer (101) and an intensity layer (102), the surface of the connecting pipe body (1) is fixedly connected with a first fixing ring (2), one side of the first fixing ring (2) is connected with a first sealing ring (3), the surface of the connecting pipe body (1) is connected with a sealing sleeve (4) in a sliding manner, one end of the sealing sleeve (4) is in contact with one side of the first fixing ring (2), the other end of the sealing sleeve (4) is connected with a second fixing ring (5), a second sealing ring (6) is connected between the second fixing ring (5) and the inner wall of the sealing sleeve (4), the inner wall of the second sealing ring (6) is connected with the surface of the first sealing ring (3) in a sliding manner, the other end of the second fixing ring (5) is connected with a fixing pipe (7) communicated with the sealing sleeve (4), the inner wall of fixed pipe (7) and the surperficial sliding connection of connecting pipe body (1), the solid fixed ring of second (5) and first solid fixed ring (2) contact each other and have run through locating screw (8) each other, the surperficial threaded connection of locating screw (8) has fixation nut (9).

2. A heat exchanger connecting pipe according to claim 1, wherein: the inner wall of the wear-resistant layer (101) is fixedly connected with the surface of the strength layer (102), the wear-resistant layer (101) is alloy steel, and the strength layer (102) is aluminum magnesium alloy.

3. A heat exchanger connecting pipe according to claim 1, wherein: first solid fixed ring (2) all are equipped with corresponding circular port (10) respectively with the solid fixed ring's of second (5) surface, the inner wall of circular port (10) and the surface of positioning screw (8) contact each other.

4. A heat exchanger connecting tube according to claim 1, wherein: the shape of first solid fixed ring (2) and the solid fixed ring of second (5) is circular form, the surface thickness of first solid fixed ring (2) equals with the surface thickness homogeneous phase of the solid fixed ring of second (5).

5. A heat exchanger connecting pipe according to claim 1, wherein: the surface diameter of the first sealing ring (3) is two thirds of the surface diameter of the second sealing ring (6), and the surface thickness of the first sealing ring (3) is equal to that of the second sealing ring (6).

6. A heat exchanger connecting tube according to claim 1, wherein: the inner wall of fixed pipe (7) is equipped with internal thread (11) that are used for with outside pipe fitting threaded connection, the surface diameter size of fixed pipe (7) and the surface diameter size looks adaptation of connecting pipe body (1).