Propylene recovery device

Abstract

The utility model relates to propylene recovery technical field, and disclose a kind of propylene recovery device, comprising: first recovery pipeline, the outside of first recovery pipeline is fixedly connected with multiple first connector, the outside of multiple first connector is all threadedly connected with connecting cap, the top of connecting cap is all fixedly connected with second recovery pipeline, the top of second recovery pipeline is all fixedly connected with first control valve, the outside of first recovery pipeline is buckled with multiple mounting plate, and mounting plate is at the side of first connector, when recovering, first recovery pipeline is laid in suitable position, then it is connected with first connector by connecting cap, then multiple first control valve is respectively communicated with external propylene rectifying column bottom pump, propylene rectifying column reflux tank and propylene rectifying column bottom heat exchanger bottom pipeline, when recovering, propylene is guided into first recovery pipeline inside by second recovery pipeline, then it is guided into external storage and transportation propylene spherical tank by first recovery pipeline.

Description

Technical Field

[0001] This utility model relates to the field of propylene recovery technology, specifically to a propylene recovery device. Background Technology

[0002] Propylene is a colorless, flammable gas commonly used in the manufacture of chemicals such as plastics, fibers, coatings, rubber, and solvents. It has double bonds, is chemically reactive, and readily undergoes oxidation, addition, and polymerization reactions. Propylene is a basic raw material for the three major synthetic materials and is widely used in industrial, agricultural, and medical fields.

[0003] During the process handover of the unit during shutdown, a large amount of propylene in the propylene distillation tower and propylene distillation tower system cannot be recovered, resulting in some waste. In addition, the process of discharging propylene is lengthy, which increases the process handover time and affects the overall maintenance progress.

[0004] Therefore, a propylene recovery device is proposed. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technologies mentioned above have problems such as a large amount of propylene that cannot be recovered, resulting in some waste, and that the process of replacing discharged propylene is lengthy, increasing the process handover time and affecting the overall maintenance schedule.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A propylene recovery device includes: a first recovery pipe, a first connector, a connecting cap, a second recovery pipe, a first control valve, a mounting plate, and a first side plate; multiple first connectors are fixedly connected to the outside of the first recovery pipe, the connecting cap is threadedly connected to the outside of the first connector, the second recovery pipe is fixedly connected to the top of the connecting cap, the first control valve is fixedly connected to the top of the second recovery pipe, the mounting plate is fastened to the outside of the first recovery pipe, and the first side plate is fixedly disposed on both sides of the mounting plate, further comprising:

[0009] A protective component; the protective component is disposed on the outside of the first recovery pipe.

[0010] As a further embodiment of this utility model: the protective assembly includes multiple protective plates, sound-absorbing cotton, a second side plate, a fixed threaded rod, a nut, and a pressure plate. The multiple protective plates are respectively fastened to the outside of the first recycling pipe, and each is located between two mounting plates. The sound-absorbing cotton is fixedly disposed inside the multiple protective plates. The second side plate is fixedly disposed on both sides of the multiple protective plates. The fixed threaded rod is fixedly disposed on the top of the first side plate. The nut is threadedly connected to the outside of the fixed threaded rod. The pressure plate is disposed between the tops of the multiple first side plates on the same side, and the pressure plate presses against the top of the second side plate. The fixed threaded rod passes through the pressure plate.

[0011] As a further improvement of this utility model: a second connector is fixedly provided on the top of each of the multiple mounting plates, a support rod is threadedly connected to the inside of the second connector, and a top plate is threadedly connected to the top of the support rod.

[0012] As a further embodiment of this utility model: a support plate is fixedly provided on the outer side of the top plate, and the support plate is located at the bottom of the first control valve; a fixing rod is fixedly provided at the bottom of the first side plate; and a second control valve is fixedly connected to one end of the first recovery pipe.

[0013] As a further embodiment of this utility model: both the second connector and the top plate have threaded grooves inside, and both ends of the support rod are machined with external threads. The two ends of the support rod are respectively threaded to the second connector and the top plate.

[0014] As a further improvement of this utility model: the connecting cap is internally machined with a second internal thread, and the first connecting head is threadedly connected to the connecting cap.

[0015] As a further improvement of this utility model: the pressure plate has a strip groove inside, and the fixing threaded rod passes through the strip groove.

[0016] As a further improvement of this utility model: the cross-section of the pallet is machined into a C-shaped groove, and the pallet is located at the bottom of the first control valve.

[0017] As a further improvement of this utility model: a through hole is provided on the outer side of the first recycling pipe, and the first connector is sealed and connected to the through hole.

[0018] As a further improvement of this utility model: the cross-section of the protective plate is processed into a U-shape, and the protective plate is installed on the outside of the first recycling pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting up a first recovery pipe, a first connector, a second recovery pipe, and a first control valve, allows for the recovery of propylene. The first recovery pipe is laid in a suitable position and then connected to the first connector via a connecting cap, thereby connecting multiple second recovery pipes to the first recovery pipe. A support rod is connected to the top of the mounting plate via the second connector, and the support plate is located at the bottom of the first control valve, thereby stabilizing the second recovery pipes.

[0021] 2. This utility model uses a protective plate installed on the outside of the first recovery pipe to protect the first recovery pipe. At the same time, the sound-absorbing cotton inside the protective plate reduces noise. Then, multiple first control valves are connected to the bottom pump of the external propylene distillation tower, the propylene distillation tower reflux tank, and the bottom pipe of the propylene distillation tower bottom heat exchanger, respectively. Meanwhile, one end of the first recovery pipe is connected to the external propylene storage and transportation spherical tank through a second control valve. Propylene is introduced into the first recovery pipe through the second recovery pipe and then into the external propylene storage and transportation spherical tank through the first recovery pipe. Attached Figure Description

[0022] Figure 1 This is a side view of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between the mounting plate and the top plate of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the first recycling pipe and the protective plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the mounting plate and the pressure plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the second recycling pipeline structure of this utility model.

[0027] Figure descriptions: 1. First recovery pipe; 2. First connector; 3. Connecting cap; 4. Second recovery pipe; 5. First control valve; 6. Mounting plate; 7. First side plate; 8. Second connector; 9. Support rod; 10. Top plate; 11. Support plate; 12. Protective plate; 13. Sound-absorbing cotton; 14. Second side plate; 15. Fixed threaded rod; 16. Nut; 17. Pressure plate; 18. Fixing rod; 19. Second control valve; 20. Protective assembly. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1:

[0032] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention.

[0033] This embodiment provides a propylene recovery device, including: a first recovery pipe 1, a plurality of first connectors 2 fixedly connected to the outer side of the first recovery pipe 1, a connector cap 3 threadedly connected to the outer side of each of the plurality of first connectors 2, a second recovery pipe 4 fixedly connected to the top of each of the connector caps 3, a first control valve 5 fixedly connected to the top of each of the second recovery pipes 4, a plurality of mounting plates 6 fastened to the outer side of the first recovery pipe 1, and the mounting plates 6 being located on one side of the first connectors 2, a first side plate 7 fixedly provided on both sides of the mounting plates 6, a second connector 8 fixedly provided on the top of each of the plurality of mounting plates 6, a support rod 9 threadedly connected to the inside of the second connector 8, a top plate 10 threadedly connected to the top of the support rod 9, a support plate 11 fixedly provided on the outer side of the top plate 10, and the support plate 11 being located at the bottom of the first control valve 5, a protective component 20 provided on the outer side of the first recovery pipe 1, a fixing rod 18 fixedly provided at the bottom of the first side plate 7, and a second control valve 19 fixedly connected to one end of the first recovery pipe 1.

[0034] When recovering propylene, the first recovery pipe 1 is laid in a suitable position and then connected to the first connector 2 through the connecting cap 3, thereby connecting multiple second recovery pipes 4 to the first recovery pipe 1. The top of the second recovery pipe 4 is connected to the first control valve 5. Then, the mounting plate 6 is installed on the outside of the first recovery pipe 1. The top of the mounting plate 6 is connected to the support rod 9 through the second connector 8. The top of the support rod 9 is connected to the support plate 11 through the top plate 10. The support plate 11 is located at the bottom of the first control valve 5, thereby stabilizing the second recovery pipe 4. Then, the multiple first control valves 5 are respectively connected to the bottom pump of the external propylene distillation column, the propylene distillation column reflux tank, and the bottom pipe of the propylene distillation column bottom heat exchanger.

[0035] Meanwhile, one end of the first recovery pipeline 1 is connected to the external propylene storage tank via the second control valve 19. During recovery, the first control valve 5 and the second control valve 19 are opened, and the propylene stored inside the propylene distillation column bottom pump, the propylene distillation column reflux tank and the propylene distillation column bottom heat exchanger is discharged and introduced into the first recovery pipeline 1 through the second recovery pipeline 4, and then introduced into the external propylene storage tank through the first recovery pipeline 1.

[0036] The protective assembly 20 includes multiple protective plates 12, which are respectively fastened to the outside of the first recycling pipe 1 and each is located between two mounting plates 6. Sound-absorbing cotton 13 is fixedly installed inside each of the multiple protective plates 12. Second side plates 14 are fixedly installed on both sides of each of the multiple protective plates 12. A fixing threaded rod 15 is fixedly installed on the top of each of the first side plates 7. A nut 16 is threadedly connected to the outside of the fixing threaded rod 15. A pressure plate 17 is provided between the tops of the multiple first side plates 7 on the same side, and the pressure plate 17 presses on the top of the second side plate 14. The fixing threaded rod 15 passes through the pressure plate 17.

[0037] After the mounting plate 6 is installed, the protective plate 12 is installed on the outside of the first recycling pipe 1, with the protective plate 12 positioned between the two mounting plates 6. Then, the pressure plate 17 is installed between the tops of the multiple first side plates 7 and connected to the fixing threaded rod 15 by the nut 16, thereby fixing the pressure plate 17. The pressure plate 17 presses on the top of the second side plate 14, thereby fixing the protective plate 12. The protective plate 12 protects the first recycling pipe 1. At the same time, sound-absorbing cotton 13 is fixedly installed inside the protective plate 12 to reduce noise.

[0038] Example 2:

[0039] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0040] For example, both the second connector 8 and the top plate 10 have threaded grooves inside, and both ends of the support rod 9 are machined with external threads. The two ends of the support rod 9 are threadedly connected to the second connector 8 and the top plate 10 respectively. The top plate 10 is fixed by the second connector 8, thereby fixing the support plate 11. The support plate 11 provides auxiliary support for the second recycling pipe 4.

[0041] The connecting cap 3 has a second internal thread, and the first connecting head 2 is threadedly connected to the connecting cap 3. The second recycling pipe 4 is connected to the first recycling pipe 1 through the connection between the first connecting head 2 and the connecting cap 3.

[0042] The pressure plate 17 has a slotted groove inside, and the threaded rod 15 passes through the slotted groove to limit the pressure plate 17.

[0043] The cross section of the tray 11 is machined into a C-shaped groove, and the tray 11 is located at the bottom of the first control valve 5, so that the tray 11 can be fastened to the outside of the first recovery pipe 1, thereby placing the tray 11 at the bottom of the first control valve 5.

[0044] A through hole is provided on the outside of the first recycling pipe 1, and the first connector 2 is sealed and connected to the through hole. The second recycling pipe 4 and the first recycling pipe 1 are connected through the first connector 2, thereby facilitating the recycling of propylene.

[0045] The protective plate 12 is processed into a U-shape, and the protective plate 12 is installed on the outside of the first recycling pipe 1. The protective plate 12 is installed on the outside of the first recycling pipe 1 to protect the first recycling pipe 1.

[0046] Working principle: When recovering propylene, the first recovery pipe 1 is laid in a suitable position and then connected to the first connector 2 via a connecting cap 3, thereby connecting multiple second recovery pipes 4 to the first recovery pipe 1. The top of the second recovery pipe 4 is connected to a first control valve 5. Then, an mounting plate 6 is installed on the outside of the first recovery pipe 1. The top of the mounting plate 6 is connected to a support rod 9 via a second connector 8. The top of the support rod 9 is connected to a support plate 11 via a top plate 10. The support plate 11 is located at the bottom of the first control valve 5, thereby stabilizing the second recovery pipes 4. A protective plate 12 is installed on the outside of the first recovery pipe 1, between two mounting plates 6. Then, a pressure plate 17 is installed between the tops of multiple first side plates 7 and connected to a fixing threaded rod 15 via a nut 16, thereby securing the pressure plate 17. The pressure plate 17 is pressed on the top of the second side plate 14 to fix the protective plate 12, which protects the first recovery pipe 1. At the same time, sound-absorbing cotton 13 is fixedly installed inside the protective plate 12 to reduce noise. Then, multiple first control valves 5 are connected to the bottom pump of the external propylene distillation tower, the propylene distillation tower reflux tank, and the bottom pipe of the propylene distillation tower bottom heat exchanger, respectively. Meanwhile, one end of the first recovery pipe 1 is connected to the external propylene storage and transportation spherical tank through the second control valve 19. When recovering, the first control valve 5 and the second control valve 19 are opened, and the propylene accumulated inside the propylene distillation tower bottom pump, the propylene distillation tower reflux tank, and the propylene distillation tower bottom heat exchanger is discharged and introduced into the first recovery pipe 1 through the second recovery pipe 4, and then introduced into the external propylene storage and transportation spherical tank through the first recovery pipe 1.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A propylene recovery device, characterized in that: include: The system comprises a first recycling pipe (1), a first connector (2), a connector cap (3), a second recycling pipe (4), a first control valve (5), a mounting plate (6), and a first side plate (7); multiple first connectors (2) are fixedly connected to the outside of the first recycling pipe (1), the connector cap (3) is threadedly connected to the outside of the first connector (2), the second recycling pipe (4) is fixedly connected to the top of the connector cap (3), the first control valve (5) is fixedly connected to the top of the second recycling pipe (4), the mounting plate (6) is fastened to the outside of the first recycling pipe (1), and the first side plate (7) is fixedly disposed on both sides of the mounting plate (6), and further includes: Protective component (20); the protective component (20) is disposed on the outside of the first recovery pipe (1).

2. The propylene recovery device according to claim 1, characterized in that: The protective assembly (20) includes multiple protective plates (12), sound-absorbing cotton (13), a second side plate (14), a fixed threaded rod (15), a nut (16), and a pressure plate (17). The multiple protective plates (12) are respectively fastened to the outside of the first recycling pipe (1), and each is located between two mounting plates (6). The sound-absorbing cotton (13) is fixedly installed inside the multiple protective plates (12). The second side plate (14) is fixedly installed on both sides of the multiple protective plates (12). The fixed threaded rod (15) is fixedly installed on the top of the first side plate (7). The nut (16) is threadedly connected to the outside of the fixed threaded rod (15). The pressure plate (17) is installed between the tops of the multiple first side plates (7) on the same side, and the pressure plate (17) presses on the top of the second side plate (14). The fixed threaded rod (15) passes through the pressure plate (17).

3. The propylene recovery device according to claim 1, characterized in that: Each of the mounting plates (6) is fixedly provided with a second connector (8) on its top. The second connector (8) is internally threaded with a support rod (9). The top of the support rod (9) is threaded with a top plate (10).

4. The propylene recovery device according to claim 3, characterized in that: A support plate (11) is fixedly installed on the outer side of the top plate (10), and the support plate (11) is located at the bottom of the first control valve (5). A fixing rod (18) is fixedly installed at the bottom of the first side plate (7), and a second control valve (19) is fixedly connected to one end of the first recycling pipe (1).

5. A propylene recovery device according to claim 3, characterized in that: The second connector (8) and the top plate (10) are both provided with threaded grooves. The two ends of the support rod (9) are both machined with external threads. The two ends of the support rod (9) are threadedly connected to the second connector (8) and the top plate (10) respectively.

6. The propylene recovery device according to claim 1, characterized in that: The connecting cap (3) has a second internal thread, and the first connecting head (2) is threadedly connected to the connecting cap (3).

7. A propylene recovery device according to claim 2, characterized in that: The pressure plate (17) has a strip groove inside, and the fixed threaded rod (15) passes through the strip groove.

8. A propylene recovery device according to claim 4, characterized in that: The cross section of the pallet (11) is machined into a C-shaped groove.

9. A propylene recovery device according to claim 1, characterized in that: The first recycling pipe (1) has a through hole on its outer side, and the first connector (2) is sealed and connected to the through hole.

10. A propylene recovery device according to claim 2, characterized in that: The protective plate (12) has a U-shaped cross section and is installed on the outside of the first recycling pipe (1).

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