Solvent conveying pipe for extractive distillation of triphenyl

Abstract

The utility model discloses a solvent conveying pipe for extracting and distilling triphenyl, and relates to the technical field of chemical equipment. The solvent conveying pipe for triphenyl extractive distillation comprises a conveying pipe body, and the two ends of the conveying pipe body are fixedly connected with limiting rings respectively; the two ends of the conveying pipe body are both slidably connected with internal thread caps. A buffer cavity is fixedly connected to the conveying pipe body; the buffer structure is arranged in the conveying pipe body, and the impact on the conveying pipe body caused by the water hammer effect generated by solvent flowing can be reduced through the arranged buffer structure. According to the solvent conveying pipe for extracting and distilling the triphenyl, through the arranged buffering structure, the water hammer effect caused by sudden closing and opening of the valve and the pump body can be effectively buffered, so that vibration of the conveying pipe body is reduced, and the situation that the connecting position of the conveying pipe body and external equipment is loosened is avoided; and meanwhile, the conveying pipe body is prevented from cracking under the water hammer effect, so that normal conveying of the solvent is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a solvent delivery pipe for triphenylene extraction and distillation. Background Art

[0002] Triphenyls refer to industrial benzene, toluene and xylene, which can be used as chemical raw materials or solvents and are mainly used in the dye industry, pesticide production, spice production, paint making, spray painting, pharmaceuticals, shoemaking, furniture manufacturing and other industries;

[0003] In the process of triphenylene extraction and distillation, a delivery pipe is usually required to transport the specified solvent. However, most of the existing delivery pipes do not have a good buffering effect. Therefore, when the solvent flows inside the delivery pipe, it is easy to cause a water hammer effect in the flow of the solvent due to the sudden opening and closing of the external pump body and valve. Therefore, when the water hammer effect acts on the delivery pipe, the delivery pipe will vibrate more obviously, thereby affecting the stability of the delivery pipe and easily causing the delivery pipe to rupture in the long run. In view of this, a solvent delivery pipe for triphenylene extraction and distillation is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a solvent delivery pipe for triphenyl extraction and distillation, which can solve the problem that most of the existing delivery pipes do not have a good buffering effect. Therefore, when the solvent flows inside the delivery pipe, it is easy to cause the solvent to produce a water hammer effect during the flow process due to the sudden opening and closing of the external pump body and valve. Therefore, when the water hammer effect acts on the delivery pipe, the delivery pipe will produce more obvious vibrations, thereby affecting the stability of the delivery pipe and the problem that the delivery pipe is easily broken in the long run.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solvent delivery pipe for triphenylene extraction and distillation, comprising a delivery pipe body, wherein both ends of the delivery pipe body are respectively fixed with a limit ring; both ends of the delivery pipe body are slidably connected with an internal threaded cap;

[0006] A buffer cavity is fixedly connected to the delivery pipe body;

[0007] A buffer structure is provided inside the delivery pipe body, which can reduce the impact of the water hammer effect caused by the flow of solvent on the delivery pipe body, thereby increasing the service life of the delivery pipe body and reducing the cost expenditure caused by replacement and maintenance;

[0008] The conveying pipe body is composed of an inner conveying pipe, a buffer layer, an outer supporting pipe, a wear-resistant layer and an anti-corrosion layer.

[0009] Preferably, the anti-corrosion layer is coated on the inner wall of the inner delivery pipe, thereby improving the anti-corrosion effect of the inner delivery pipe, and the wear-resistant layer is coated on the surface of the outer support pipe, thereby improving the overall wear resistance of the delivery pipe body and avoiding wear and tear, thereby increasing its service life.

[0010] Preferably, the buffer layer is wavy and is disposed between the inner delivery tube and the outer support tube.

[0011] Preferably, the buffer structure comprises a sealed bearing, which is fixedly connected to the inner wall of the conveying pipe body, and a guide block is fixedly connected to the inside of the rotatable inner ring of the sealed bearing;

[0012] The guide block is in the shape of an annular cone, and guide grooves are provided on the inner wall and the surface of the guide block.

[0013] Preferably, the buffer structure further comprises a pressure block slidably connected inside the buffer cavity, and the pressure block is a hemispherical body;

[0014] A support rod is fixedly connected to the inner wall of the buffer cavity, and a moving rod is slidably sleeved on the support rod;

[0015] The pressure block is fixedly connected to the moving rod, a return spring is fixedly connected inside the moving rod, and the other end of the return spring is fixedly connected to the support rod.

[0016] Preferably, the guide groove is arranged at an angle.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The solvent delivery pipe for triphenylene extraction and distillation has a buffer structure during the flow of the solvent, so it can effectively buffer the water hammer effect caused by the sudden closing and opening of the valve and the pump body, thereby reducing the vibration of the delivery pipe body, avoiding loosening of the connection between the delivery pipe body and external equipment, and avoiding the rupture of the delivery pipe body under the water hammer effect, thereby ensuring the normal delivery of the solvent.

[0019] (2) The solvent delivery pipe for triphenylene extraction and distillation has a buffer layer made of rubber. The buffer layer is provided so that the inner delivery pipe has a good buffering and shock-resistant effect, thereby reducing the damage caused by impact. The anti-corrosion layer is coated on the inner wall of the inner delivery pipe, thereby improving the anti-corrosion effect of the inner delivery pipe. The wear-resistant layer is coated on the surface of the outer support pipe, thereby improving the wear resistance of the entire delivery pipe body and avoiding wear and tear, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic structural diagram of a solvent delivery pipe for triphenylene extraction and distillation according to the utility model;

[0022] Figure 2 This is a schematic diagram of the interior of the delivery pipe body of the utility model;

[0023] Figure 3 This is a schematic diagram of the return spring of the utility model;

[0024] Figure 4 This is a schematic diagram of the guide block of the utility model;

[0025] Figure 5 It is a plan view of the delivery pipe body of the utility model.

[0026] Figure numerals: 1. conveying pipe body; 101. inner conveying pipe; 102. anti-corrosion layer; 103. outer support pipe; 104. wear-resistant layer; 105. buffer layer; 2. internal threaded cap; 3. punch cavity; 4. limit ring; 5. pressure block; 6. support rod; 7. moving rod; 8. sealed bearing; 9. guide block; 10. guide groove; 11. reset spring. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] See also Figure 1-5 The utility model provides a technical solution: a solvent delivery pipe for triphenyl extraction and distillation, comprising a delivery pipe body 1, and two ends of the delivery pipe body 1 are respectively fixed with limit rings 4; both ends of the delivery pipe body 1 are slidably connected with internal thread caps 2;

[0032] A buffer cavity 3 is fixedly connected to the delivery pipe body 1;

[0033] A buffer structure is provided inside the delivery pipe body 1, and the buffer structure can reduce the impact of the water hammer effect generated by the flow of the solvent on the delivery pipe body 1, thereby increasing the service life of the delivery pipe body 1 and reducing the cost expenditure caused by replacement and maintenance;

[0034] The delivery pipe body 1 is composed of an inner delivery pipe 101, a buffer layer 105, an outer support pipe 103, a wear-resistant layer 104 and an anti-corrosion layer 102;

[0035] The anti-corrosion layer 102 is coated on the inner wall of the inner delivery pipe 101, thereby improving the anti-corrosion effect of the inner delivery pipe 101, and the wear-resistant layer 104 is coated on the surface of the outer support pipe 103, thereby improving the wear-resistant effect of the entire delivery pipe body 1, avoiding the occurrence of wear and tear, thereby increasing the service life;

[0036] The buffer layer 105 is wavy and is disposed between the inner delivery tube 101 and the outer support tube 103;

[0037] The buffer layer 105 is made of rubber. By setting the buffer layer 105, the inner delivery tube 101 has a good buffering and shock-resistant effect, thereby reducing the damage caused by the impact.

[0038] Furthermore, the buffer structure includes a sealing bearing 8, which is fixedly connected to the inner wall of the conveying pipe body 1, and a guide block 9 is fixedly connected to the inside of the rotatable inner ring of the sealing bearing 8;

[0039] The guide block 9 is annularly conical, and guide grooves 10 are provided on the inner wall and surface of the guide block 9;

[0040] The guide groove 10 is arranged obliquely;

[0041] When the solvent flows inside the conveying pipe body 1, the solvent flows into the other end of the conveying pipe body 1 through the guide groove 10. At this time, the potential energy generated by the flow of the solvent pushes the guide block 9 to rotate through the inclined guide groove 10. Therefore, the guide block 9 has the effect of dispersing the solvent, so that when the solvent suddenly stops flowing, the water hammer effect caused by the solvent on the conveying pipe body 1 is reduced, thereby reducing the vibration of the conveying pipe body 1 and avoiding damage and rupture to the conveying pipe body 1 in the long term.

[0042] Furthermore, the buffer structure also includes a pressure block 5 slidably connected inside the buffer cavity 3, and the pressure block 5 is a hemispherical body;

[0043] A support rod 6 is fixedly connected to the inner wall of the buffer cavity 3, and a moving rod 7 is slidably sleeved on the support rod 6;

[0044] The pressure block 5 is fixedly connected to the moving rod 7, a return spring 11 is fixedly connected inside the moving rod 7, and the other end of the return spring 11 is fixedly connected to the support rod 6;

[0045] When a water hammer effect occurs inside the delivery pipe body 1, the pressure caused by the flow of the solvent causes the pressure block 5 to slide upward inside the buffer cavity 3. At this time, the buffer cavity 3 and the inside of the delivery pipe body 1 are interconnected, so that part of the volume can flow into the buffer cavity 3, thereby reducing the pressure inside the delivery pipe body 1, thereby preventing it from rupturing.

[0046] By providing the return spring 11 , when the water hammer effect stops, the pressure block 5 can be reset by the return spring, thereby preparing for the next buffering.

[0047] Working principle: When the solvent flows inside the conveying pipe body 1, the solvent flows into the other end of the conveying pipe body 1 through the guide groove 10. At this time, the potential energy generated by the flow of the solvent pushes the guide block 9 to rotate through the inclined guide groove 10. Therefore, the guide block 9 has the effect of dispersing the solvent, so that when the solvent suddenly stops flowing, the water hammer effect caused by the solvent on the conveying pipe body 1 is reduced, thereby reducing the vibration of the conveying pipe body 1 and avoiding damage and rupture of the conveying pipe body 1 in the long term;

[0048] When a water hammer effect occurs inside the delivery pipe body 1, the pressure caused by the flow of solvent causes the pressure block 5 to slide upward inside the buffer cavity 3. At this time, the buffer cavity 3 and the interior of the delivery pipe body 1 are interconnected, so that part of the volume can flow into the buffer cavity 3, thereby reducing the pressure inside the delivery pipe body 1, thereby avoiding its rupture.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A solvent delivery pipe for triphenylene extraction distillation, comprising a delivery pipe body (1), characterized in that: The two ends of the delivery pipe body (1) are respectively fixed with limit rings (4); the two ends of the delivery pipe body (1) are both slidably connected with internal thread caps (2); A buffer cavity (3) is fixedly connected to the delivery pipe body (1); A buffer structure is provided inside the delivery pipe body (1), and the provided buffer structure can reduce the impact of the water hammer effect generated by the flow of the solvent on the delivery pipe body (1), thereby increasing the service life of the delivery pipe body (1) and reducing the cost expenditure caused by replacement and maintenance; The conveying pipe body (1) is composed of an inner conveying pipe (101), a buffer layer (105), an outer supporting pipe (103), a wear-resistant layer (104) and an anti-corrosion layer (102).

2. A solvent delivery pipe for triphenylene extractive distillation according to claim 1, characterized in that: The anti-corrosion layer (102) is coated on the inner wall of the inner delivery pipe (101), thereby improving the anti-corrosion effect of the inner delivery pipe (101); the wear-resistant layer (104) is coated on the surface of the outer support pipe (103), thereby improving the overall wear-resistant effect of the delivery pipe body (1), avoiding the occurrence of wear and tear, thereby increasing the service life.

3. A solvent delivery pipe for triphenylene extraction distillation according to claim 1, characterized in that: The buffer layer (105) is wavy in shape, and the buffer layer (105) is arranged between the inner delivery tube (101) and the outer support tube (103).

4. A solvent delivery pipe for triphenylene extraction distillation according to claim 1, characterized in that: The buffer structure comprises a sealing bearing (8), the sealing bearing (8) is fixedly connected to the inner wall of the conveying pipe body (1), and a guide block (9) is fixedly connected inside the rotatable inner ring of the sealing bearing (8); The guide block (9) is annularly conical, and guide grooves (10) are provided on the inner wall and the surface of the guide block (9).

5. A solvent delivery pipe for triphenylene extraction and distillation according to claim 1, characterized in that: The buffer structure further comprises a pressure block (5) slidably connected inside the buffer cavity (3), and the pressure block (5) is a hemispherical body; A support rod (6) is fixedly connected to the inner wall of the buffer cavity (3), and a moving rod (7) is slidably sleeved on the support rod (6); The pressure block (5) is fixedly connected to the moving rod (7), a return spring (11) is fixedly connected inside the moving rod (7), and the other end of the return spring (11) is fixedly connected to the support rod (6).

6. A solvent delivery pipe for triphenylene extractive distillation according to claim 4, characterized in that: The guide groove (10) is arranged obliquely.

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