High-pressure seamless eccentric three-way pipe fitting with pressure-resistant structure for jacket

Abstract

The utility model relates to the technical field of eccentric three-way pipe fittings, in particular to a high-pressure seamless eccentric three-way pipe fitting with a pressure-resistant structure for a jacket, which comprises the jacket, an inner pipe and a first pressure-resistant mechanism, and the first pressure-resistant mechanism comprises a cross-shaped supporting block, a plurality of first supporting rods and a plurality of springs. The two ends of the cross-shaped supporting block are connected with the inner wall of the clamping sleeve and the outer wall of the inner pipe respectively, one end of the first supporting rod is connected with the cross-shaped supporting block, the other end of the first supporting rod is connected with the clamping sleeve or the inner pipe in a sliding mode, and the first supporting rod is sleeved with the spring. The two sections of the spring are connected with the cross-shaped supporting block, the inner wall of the clamping sleeve or the outer wall of the inner pipe. According to the eccentric three-way pipe fitting, the clamping sleeve and the inner pipe are connected through the cross-shaped supporting block, so that the supporting part between the clamping sleeve and the inner pipe is dispersed, pressure concentration can be avoided, the pressure resistance degree of the eccentric three-way pipe fitting is improved, and the service life of the eccentric three-way pipe fitting is prolonged.

Description

High-pressure seamless eccentric tee fittings with pressure-resistant jacket structure Technical Field

[0001] This utility model relates to the technical field of eccentric tee fittings, and in particular to a high-pressure seamless eccentric tee fitting with a pressure-resistant structure for use in jackets. Background Technology

[0002] Jacketed high-pressure seamless eccentric tee fittings are special-purpose fittings used in industrial piping systems. The jacketed design typically involves adding a sleeve to the outer layer of the tee fitting, creating a space between the jacket and the inner tube. This space allows for the introduction of heating or cooling media (e.g., steam, hot water, cooling water) to heat or cool the fluid in the inner tube, achieving precise temperature control during the process. The jacket and inner tube usually need to withstand high pressure to ensure the safety and reliability of the eccentric tee fitting under high-pressure conditions, preventing leaks or ruptures due to excessive pressure. Therefore, we urgently need a jacketed high-pressure seamless eccentric tee fitting with a pressure-resistant structure.

[0003] Currently, the jacket and inner tube of eccentric tee fittings are only supported by a support block, which concentrates the pressure on the support block. This design, due to the concentration of pressure, can cause damage to the jacket and inner tube due to excessive pressure. Summary of the Invention

[0004] To address the shortcomings of the existing production technology, the applicant provides a jacketed seamless eccentric tee fitting with a pressure-resistant structure. By improving the structure of the eccentric tee fitting, the pressure resistance of the eccentric tee fitting is increased, thereby extending its service life.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A high-pressure seamless eccentric tee fitting with a pressure-resistant structure includes: a jacket, an inner tube, and a first pressure-resistant mechanism. The inner tube is embedded in the jacket and is used to transport fluid. A heating medium or a cooling medium is injected into the jacket to heat or cool the fluid transported in the inner tube. The first pressure-resistant mechanism is installed between the jacket and the inner tube. The first pressure-resistant mechanism includes: a cross support block, a plurality of first support rods, and a plurality of springs. The two ends of the cross support block are respectively connected to the inner wall of the jacket and the outer wall of the inner tube. One end of the first support rod is connected to the cross support block, and the other end of the first support rod is slidably connected to the jacket or the inner tube. The spring is sleeved on the first support rod, and the two ends of the spring are respectively connected to the cross support block, the inner wall of the jacket, or the outer wall of the inner tube.

[0007] Therefore, the connection between the jacket and the inner tube is achieved through the cross-shaped support block, which disperses the support parts between the jacket and the inner tube. Compared with the existing support method with concentrated pressure, this method has a simple structure and is easy to operate. It can disperse the pressure between the jacket and the inner tube, avoiding damage caused by excessive pressure due to pressure concentration, thereby improving the pressure resistance of the eccentric tee fitting and thus increasing its service life. In addition, the cooperation between the first support rod and the spring can buffer the pressure between the jacket and the inner tube, thereby reducing the pressure between the jacket and the inner tube and further improving the pressure resistance of the eccentric tee fitting.

[0008] As a further improvement to the above technical solution: multiple first pressure-resistant mechanisms are provided; these multiple first pressure-resistant mechanisms are distributed in a ring at equal intervals along the circumferential direction of the jacket or the inner tube, and at equal intervals along the axial direction of the jacket. Thus, by distributing the multiple first pressure-resistant mechanisms at equal intervals in both the circumferential and axial directions, the pressure between the jacket and the inner tube is further dispersed, preventing damage due to excessive pressure concentration, thereby improving the pressure resistance of the eccentric tee fitting and thus extending its service life.

[0009] As a further improvement to the above technical solution, it also includes: a second pressure-resistant mechanism, which is installed on the inner wall of the inner tube. The second pressure-resistant mechanism includes: a plurality of first reinforcing ribs and a protective cover. The protective cover is connected to the inner wall of the inner tube, and the first reinforcing ribs are located in the accommodating space between the inner wall of the inner tube and the protective cover. The plurality of first reinforcing ribs are interconnected, and the first reinforcing ribs abut against the inner wall of the protective cover. Therefore, when a negative pressure occurs during the inner tube transportation process, the protective cover can be pressure-relieving by utilizing its own shape. In addition, the strength of the plurality of first reinforcing ribs can support the protective cover.

[0010] As a further improvement to the above technical solution: the jacket includes: a first branch pipe, a second branch pipe and a third branch pipe, the second branch pipe is connected to the first branch pipe and the axis of the second branch pipe does not coincide with the axis of the first branch pipe, the third branch pipe is connected to the first branch pipe and the axis of the third branch pipe does not coincide with the axis of the first branch pipe.

[0011] As a further improvement to the above technical solution: the inner tube includes a fourth branch pipe, a fifth branch pipe and a sixth branch pipe, the fifth branch pipe is connected to the fourth branch pipe and the axis of the fifth branch pipe does not coincide with the axis of the fourth branch pipe, the sixth branch pipe is connected to the fourth branch pipe and the axis of the sixth branch pipe does not coincide with the axis of the fourth branch pipe.

[0012] As a further improvement to the above technical solution, it also includes: three third pressure-resistant mechanisms, which are installed between the inner wall of the jacket and the outer wall of the inner tube, and the three third pressure-resistant mechanisms are respectively located between the first branch pipe and the second branch pipe, the first branch pipe and the third branch pipe, and the second branch pipe and the third branch pipe.

[0013] As a further improvement to the above technical solution, the third pressure-resistant mechanism includes multiple second support rods, with both ends of the second support rods connected to the inner wall of the jacket and the outer wall of the inner tube, respectively. Thus, the multiple second support rods strengthen the structural strength between the first and second branch pipes, the first and third branch pipes, the second and third branch pipes, the fourth and fifth branch pipes, the fourth and sixth branch pipes, and the fifth and sixth branch pipes, thereby further improving the pressure resistance of the entire eccentric tee fitting.

[0014] As a further improvement to the above technical solution: Multiple second reinforcing ribs are embedded inside the first branch pipe, the second branch pipe, and the third branch pipe, and these second reinforcing ribs are distributed in a ring shape with equal spacing. Therefore, the structural strength of the jacket is improved through the structural strength of the second reinforcing ribs, thereby increasing the pressure resistance of the jacket.

[0015] As a further improvement to the above technical solution: Multiple third reinforcing ribs are embedded inside the fourth, fifth, and sixth branch pipes, and these ribs are distributed in a ring shape with equal spacing. Therefore, the structural strength of the inner pipe is improved through the structural strength of the third reinforcing ribs, thereby increasing the pressure resistance of the inner pipe.

[0016] As a further improvement to the above technical solution: Third support rods are provided on the outer walls of the first branch pipe and the second branch pipe, the outer walls of the first branch pipe and the third branch pipe, and the outer walls of the second branch pipe and the third branch pipe. Thus, the third support rods strengthen the structural strength between the first and second branch pipes, the first and third branch pipes, and the second and third branch pipes, thereby improving the pressure resistance of the jacket and further enhancing the overall pressure resistance of the eccentric tee fitting.

[0017] The beneficial effects of this utility model are as follows:

[0018] The connection between the jacket and the inner tube is achieved through a cross-shaped support block, which disperses the support between the jacket and the inner tube. Compared with the existing support method with concentrated pressure, this method has a simple structure and is easy to operate. It can disperse the pressure between the jacket and the inner tube, avoiding damage caused by excessive pressure due to pressure concentration, thereby improving the pressure resistance of the eccentric tee fitting and thus increasing its service life. In addition, the cooperation between the first support rod and the spring can buffer the pressure between the jacket and the inner tube, thereby reducing the pressure between the jacket and the inner tube and further improving the pressure resistance of the eccentric tee fitting.

[0019] This utility model also has the following advantages:

[0020] 1. This utility model distributes multiple first pressure-resistant mechanisms at equal intervals in the circumferential direction and axial wind direction to further disperse the pressure between the jacket and the inner tube, avoiding damage to the jacket and the inner tube due to excessive pressure caused by pressure concentration, thereby improving the pressure resistance of the eccentric tee fitting and thus increasing the service life of the eccentric tee fitting.

[0021] 2. When negative pressure occurs during the inner tube transportation process, this utility model can relieve the pressure generated by the shape of the protective cover itself when the protective cover is under pressure. In addition, the protective cover can be supported by the strength of multiple first reinforcing ribs.

[0022] 3. This utility model can strengthen the structural strength between the first branch pipe and the second branch pipe, the first branch pipe and the third branch pipe, the second branch pipe and the third branch pipe, the fourth branch pipe and the fifth branch pipe, the fourth branch pipe and the sixth branch pipe, and the fifth branch pipe and the sixth branch pipe by using multiple second support rods, so as to further improve the pressure resistance of the entire eccentric tee fitting. Attached Figure Description

[0023] Figure 1 is a structural schematic diagram of the jacketed seamless eccentric tee fitting with pressure-resistant structure of this utility model;

[0024] Figure 2 is a front view of the jacketed high-pressure seamless eccentric tee fitting with a pressure-resistant structure of this utility model.

[0025] Figure 3 is an enlarged schematic diagram of a partial structure at point A in Figure 2 of this utility model;

[0026] Figure 4 is a cross-sectional view of the jacketed high-pressure seamless eccentric tee fitting with a pressure-resistant structure of this utility model.

[0027] Figure 5 is a schematic diagram of the first pressure-resistant mechanism of this utility model.

[0028] Among them: 1. Jacket;

[0029] 101. First branch pipe; 102. Second branch pipe; 103. Third branch pipe; 104. Second reinforcing rib; 105. Third support rod;

[0030] 2. Inner tube;

[0031] 201. Fourth branch pipe; 202. Fifth branch pipe; 203. Sixth branch pipe; 204. Third reinforcing rib;

[0032] 3. First pressure-resistant mechanism;

[0033] 301. Cross-shaped support block; 302. First support rod; 303. Spring;

[0034] 4. Second pressure-resistant mechanism;

[0035] 401. First reinforcing rib; 402. Protective cover;

[0036] 5. Third pressure-resistant mechanism;

[0037] 501. Second support rod. Detailed Implementation

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0039] As shown in Figures 1 to 5, this is the preferred embodiment of the present invention. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure includes: a jacket 1, an inner tube 2, and a first pressure-resistant mechanism 3. The inner tube 2 is embedded in the jacket 1 and is used to transport fluid. A heating medium or a cooling medium is injected into the jacket 1 to heat or cool the fluid transported in the inner tube 2. The first pressure-resistant mechanism 3 is installed between the jacket 1 and the inner tube 2. The first pressure-resistant mechanism 3 includes: a cross support block 301, a plurality of first support rods 302, and a plurality of springs 303. The two ends of the cross support block 301 are respectively connected to the inner wall of the jacket 1 and the outer wall of the inner tube 2. One end of the first support rod 302 is connected to the cross support block 301, and the other end of the first support rod 302 is slidably connected to the jacket 1 or the inner tube 2. The spring 303 is sleeved on the first support rod 302, and the two ends of the spring 303 are respectively connected to the cross support block 301, the inner wall of the jacket 1, or the outer wall of the inner tube 2. Therefore, the connection between the jacket 1 and the inner tube 2 is achieved through the cross support block 301, so that the support parts between the jacket 1 and the inner tube 2 are dispersed. Compared with the existing support method with concentrated pressure, this method has a simple structure and is easy to operate. It can disperse the pressure between the jacket 1 and the inner tube 2, avoiding damage caused by excessive pressure due to pressure concentration, thereby improving the pressure resistance of the eccentric tee fitting and thus increasing its service life. In addition, through the cooperation of the first support rod 302 and the spring 303, the pressure between the jacket 1 and the inner tube 2 can be buffered to reduce the pressure between the jacket 1 and the inner tube 2, thereby further improving the pressure resistance of the eccentric tee fitting.

[0040] In this embodiment, multiple first pressure-resistant mechanisms 3 are provided. These multiple first pressure-resistant mechanisms 3 are distributed in a ring at equal intervals along the circumferential direction of the jacket 1 or the inner tube 2, and are also distributed at equal intervals along the axial direction of the jacket 1. This equal-interval distribution of the multiple first pressure-resistant mechanisms 3 in both the circumferential and axial directions further disperses the pressure between the jacket 1 and the inner tube 2, preventing damage due to excessive pressure concentration. This improves the pressure resistance of the eccentric tee fitting and thus extends its service life.

[0041] In this embodiment, a second pressure-resistant mechanism 4 is also included. The second pressure-resistant mechanism 4 is installed on the inner wall of the inner tube 2. The second pressure-resistant mechanism 4 includes a plurality of first reinforcing ribs 401 and a protective cover 402. The protective cover 402 is connected to the inner wall of the inner tube 2, and the first reinforcing ribs 401 are located in the accommodating space between the inner wall of the inner tube 2 and the protective cover 402. The plurality of first reinforcing ribs 401 are interconnected, and the first reinforcing ribs 401 abut against the inner wall of the protective cover 402. Thus, when a negative pressure occurs during the transport of the inner tube 2, the protective cover 402 can be depressurized by its own shape when it is under pressure. In addition, the protective cover 402 can be supported by the strength of the plurality of first reinforcing ribs 401.

[0042] In this embodiment, the jacket 1 includes: a first branch pipe 101, a second branch pipe 102, and a third branch pipe 103. The second branch pipe 102 is connected to the first branch pipe 101, and the axis of the second branch pipe 102 does not coincide with the axis of the first branch pipe 101. The third branch pipe 103 is connected to the first branch pipe 101, and the axis of the third branch pipe 103 does not coincide with the axis of the first branch pipe 101. A plurality of second reinforcing ribs 104 are embedded inside the first branch pipe 101, the second branch pipe 102, and the third branch pipe 103, and the plurality of second reinforcing ribs 104 are distributed in a ring at equal intervals. A third support rod 105 is provided on the outer wall of the first branch pipe 101 and the outer wall of the second branch pipe 102, the outer wall of the first branch pipe 101 and the outer wall of the third branch pipe 103, and the outer wall of the second branch pipe 102 and the outer wall of the third branch pipe 103. Therefore, the structural strength of the jacket 1 is improved by the structural strength of the second reinforcing rib 104, thereby improving the pressure resistance of the jacket 1; the structural strength between the first branch pipe 101 and the second branch pipe 102, the first branch pipe 101 and the third branch pipe 103, and the second branch pipe 102 and the third branch pipe 103 is strengthened by the third support rod 105, thereby improving the pressure resistance of the jacket 1, and further improving the pressure resistance of the entire eccentric tee fitting.

[0043] In this embodiment, the inner tube 2 includes a fourth branch tube 201, a fifth branch tube 202, and a sixth branch tube 203. The fifth branch tube 202 is connected to the fourth branch tube 201, and the axis of the fifth branch tube 202 does not coincide with the axis of the fourth branch tube 201. The sixth branch tube 203 is connected to the fourth branch tube 201, and the axis of the sixth branch tube 203 does not coincide with the axis of the fourth branch tube 201. Multiple third reinforcing ribs 204 are embedded inside the fourth branch tube 201, the fifth branch tube 202, and the sixth branch tube 203, and the multiple third reinforcing ribs 204 are distributed in a ring shape with equal spacing. Therefore, the structural strength of the inner tube 2 is improved by the structural strength of the third reinforcing ribs 204, thereby improving the pressure resistance of the inner tube 2.

[0044] In this embodiment, it further includes: three third pressure-resistant mechanisms 5, which are installed between the inner wall of the jacket 1 and the outer wall of the inner tube 2. The three third pressure-resistant mechanisms 5 are respectively located between the first branch pipe 101 and the second branch pipe 102, the first branch pipe 101 and the third branch pipe 103, and the second branch pipe 102 and the third branch pipe 103. Each third pressure-resistant mechanism 5 includes: multiple second support rods 501, with both ends of the second support rods 501 connected to the inner wall of the jacket 1 and the outer wall of the inner tube 2, respectively. Thus, the multiple second support rods 501 can strengthen the structural strength between the first branch pipe 101 and the second branch pipe 102, the first branch pipe 101 and the third branch pipe 103, the second branch pipe 102 and the third branch pipe 103, the fourth branch pipe 201 and the fifth branch pipe 202, the fourth branch pipe 201 and the sixth branch pipe 203, and the fifth branch pipe 202 and the sixth branch pipe 203, thereby further improving the pressure resistance of the entire eccentric tee fitting.

[0045] The process of using this eccentric tee fitting is as follows: First, the first branch pipe 101, the second branch pipe 102, the third branch pipe 103, the fourth branch pipe 201, the fifth branch pipe 202, and the sixth branch pipe 203 are connected to their corresponding fittings. Finally, fluid is transported through the fourth branch pipe 201, the fifth branch pipe 202, and the sixth branch pipe 203, and heating or cooling media (e.g., steam, hot water, cooling water) are transported through the first, second, and third pipes to achieve heating or cooling treatment of the transported fluid. With the cooperation of the first pressure-resistant mechanism 3, the second pressure-resistant mechanism 4, and the third pressure-resistant mechanism 5, multiple pressure-resistant treatments are achieved for the entire eccentric tee fitting to improve its pressure resistance and thus extend its service life.

[0046] In summary, this utility model achieves the connection between the jacket 1 and the inner tube 2 through the cross support block 301, thereby dispersing the support parts between the jacket 1 and the inner tube 2. Compared with the existing support method with concentrated pressure, this method has a simple structure and is easy to operate. It can disperse the pressure between the jacket 1 and the inner tube 2, avoiding damage caused by excessive pressure due to pressure concentration, thus improving the pressure resistance of the eccentric tee fitting and increasing its service life. In addition, through the cooperation of the first support rod 302 and the spring 303, the pressure between the jacket 1 and the inner tube 2 can be buffered to reduce the pressure between the jacket 1 and the inner tube 2, thereby further improving the pressure resistance of the eccentric tee fitting.

[0047] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing, characterized in that, include: A jacket (1) and an inner tube (2), wherein the inner tube (2) is embedded in the jacket (1) and the inner tube (2) is used to transport fluid. A heating medium or a cooling medium is injected into the jacket (1) to heat or cool the fluid transported in the inner tube (2); a first pressure-resistant mechanism (3), wherein the first pressure-resistant mechanism (3) is installed between the jacket (1) and the inner tube (2), and the first pressure-resistant mechanism (3) includes: a cross support block (301), a plurality of first support rods (302) and a plurality of springs (303). The two ends of the cross support block (301) are respectively connected to the inner wall of the sleeve (1) and the outer wall of the inner tube (2). One end of the first support rod (302) is connected to the cross support block (301), and the other end of the first support rod (302) is slidably connected to the sleeve (1) or the inner tube (2). The spring (303) is sleeved on the first support rod (302), and the two ends of the spring (303) are respectively connected to the cross support block (301), the inner wall of the sleeve (1), or the outer wall of the inner tube (2).

2. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 1, characterized in that: Multiple first pressure-resistant mechanisms (3) are provided; multiple first pressure-resistant mechanisms (3) are distributed in a ring at equal intervals along the circumferential direction of the jacket (1) or the inner tube (2), and multiple first pressure-resistant mechanisms (3) are distributed at equal intervals along the axial direction of the jacket (1).

3. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 1, characterized in that: Also includes: The second pressure-resistant mechanism (4) is installed on the inner wall of the inner tube (2). The second pressure-resistant mechanism (4) includes: a plurality of first reinforcing ribs (401) and a protective cover (402). The protective cover (402) is connected to the inner wall of the inner tube (2), and the first reinforcing ribs (401) are located in the accommodating space between the inner wall of the inner tube (2) and the protective cover (402). The plurality of first reinforcing ribs (401) are connected to each other, and the first reinforcing ribs (401) abut against the inner wall of the protective cover (402).

4. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 1, characterized in that: The jacket (1) includes: a first branch pipe (101), a second branch pipe (102) and a third branch pipe (103). The second branch pipe (102) is connected to the first branch pipe (101), and the axis of the second branch pipe (102) does not coincide with the axis of the first branch pipe (101). The third branch pipe (103) is connected to the first branch pipe (101), and the axis of the third branch pipe (103) does not coincide with the axis of the first branch pipe (101).

5. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 4, characterized in that: The inner tube (2) includes a fourth branch tube (201), a fifth branch tube (202), and a sixth branch tube (203). The fifth branch tube (202) is connected to the fourth branch tube (201), and the axis of the fifth branch tube (202) does not coincide with the axis of the fourth branch tube (201). The sixth branch tube (203) is connected to the fourth branch tube (201), and the axis of the sixth branch tube (203) does not coincide with the axis of the fourth branch tube (201).

6. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 5, characterized in that: Also includes: Three third pressure-resistant mechanisms (5) are installed between the inner wall of the jacket (1) and the outer wall of the inner tube (2). The three third pressure-resistant mechanisms (5) are respectively located between the first branch pipe (101) and the second branch pipe (102), the first branch pipe (101) and the third branch pipe (103), and the second branch pipe (102) and the third branch pipe (103).

7. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 6, characterized in that: The third pressure-resistant mechanism (5) includes: a plurality of second support rods (501), the two ends of which are connected to the inner wall of the jacket (1) and the outer wall of the inner tube (2), respectively.

8. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 4, characterized in that: The first branch pipe (101), the second branch pipe (102), and the third branch pipe (103) are all equipped with a plurality of second reinforcing ribs (104), which are distributed in a ring shape with equal spacing.

9. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 5, characterized in that: The fourth branch pipe (201), the fifth branch pipe (202), and the sixth branch pipe (203) are all equipped with multiple third reinforcing ribs (204), which are distributed in a ring shape with equal spacing.

10. The high-pressure seamless eccentric tee fitting with a pressure-resistant structure for jacketing as described in claim 4, characterized in that: The outer walls of the first branch pipe (101) and the second branch pipe (102), the outer walls of the first branch pipe (101) and the third branch pipe (103), and the outer walls of the second branch pipe (102) and the third branch pipe (103) are all provided with a third support rod (105).

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