Inner coil pipe type styrene raw material storage tank

Abstract

The utility model discloses an inner coil type styrene raw material storage tank which is characterized in that a cover plate is arranged at the top of a tank body, a positioning annular seat is coaxially arranged at the bottom end in the tank body, a plurality of reinforcing plates are arranged on the periphery of the positioning annular seat, an inner sleeve is coaxially arranged in the tank body, and the bottom of the inner sleeve is connected with the inner wall of the positioning annular seat; an inner coil pipe is arranged on the inner wall of the inner sleeve, an annular plate is arranged on the upper portion of the inner sleeve, the periphery of the annular plate is connected with the inner wall of the tank body, the bottom of the inner sleeve is connected with the bottom end of the interior of the tank body, and a cavity is formed among the tank body, the inner sleeve and the annular plate. The influence of the external temperature on the internal temperature of the tank body can be greatly reduced, the positioning annular seat is arranged at the bottom end in the tank body, and the reinforcing plates are arranged on the periphery of the positioning annular seat, so that the supporting strength of the bottom of the inner sleeve can be greatly improved, and the problem of deformation caused by insufficient radial supporting force of the bottom of the inner sleeve due to existence of a cavity is avoided.

Description

Technical Field

[0001] This utility model relates to the field of styrene storage tank technology, specifically an internal coil type styrene raw material storage tank. Background Technology

[0002] Styrene is a colorless, transparent liquid that is flammable at room temperature and widely used in the chemical industry. Its structure involves the conjugation of electrons between the vinyl group and the benzene ring. It is insoluble in water but soluble in most organic solvents such as ethanol and ether. It is an important monomer for synthetic resins, ion exchange resins, and synthetic rubber.

[0003] Styrene storage temperature should be controlled between 5 and 20°C. In practice, companies typically keep the temperature below 18°C ​​to allow for a safety margin. Currently, the internal coil of styrene raw material storage tanks is generally welded directly to the inner wall of the tank. If the tank insulation is inadequate, it is easily affected by the external temperature environment. Therefore, to reduce the impact of external temperature on the internal temperature of the raw material storage tank, an improved technology is urgently needed to solve this problem in existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide an internal coil type styrene raw material storage tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal coil type styrene raw material storage tank, comprising a tank body, a cover plate, an inner sleeve, an annular plate, and an inner coil. The top of the tank body is provided with a cover plate, and a positioning annular seat is coaxially provided at the bottom of the tank body. Several reinforcing plates are provided around the positioning annular seat. The inner sleeve is coaxially provided in the tank body, and the bottom of the inner sleeve is connected to the inner wall of the positioning annular seat. An inner coil is provided on the inner wall of the inner sleeve. An annular plate is provided on the upper part of the inner sleeve, and the outer periphery of the annular plate is connected to the inner wall of the tank body. The bottom of the inner sleeve is connected to the bottom of the tank body. A cavity is formed between the tank body, the inner sleeve, and the annular plate. A heat exchange medium inlet is provided at the lower part of the inner coil, and a heat exchange medium outlet is provided at the upper part of the inner coil. Both the heat exchange medium inlet and the heat exchange medium outlet pass through the inner sleeve and the side wall of the tank body. A main condensate drain outlet is provided at the bottom of the tank body, located in the cavity.

[0006] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein a spiral staircase is provided around the tank body.

[0007] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein a guardrail is provided on the outer periphery of the top of the cover plate, and a manhole and a feed inlet are also provided on the upper surface of the cover plate.

[0008] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein an obliquely arranged temperature sensor mounting tube is provided through the side wall of the tank body, and the temperature sensor mounting tube also passes through the inner sleeve.

[0009] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein a spare condensate drain outlet is provided on one side of the lower part of the tank body and in the cavity.

[0010] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein the lower part of the tank body is provided with several discharge ports, and the discharge ports pass through the inner sleeve.

[0011] Preferably, the present invention provides an internal coil type styrene raw material storage tank, wherein the height of the annular plate gradually decreases from the outside to the inside and has an inclination angle of 1 to 5°.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The tank body is equipped with an inner sleeve, and an inner coil is set on the inner wall of the inner sleeve. A cavity is formed between the inner sleeve, the annular plate and the tank body. When heat exchange is carried out through the medium inside the inner coil, the influence of the external temperature on the internal temperature of the tank body can be greatly reduced. In addition, a positioning annular seat is set at the bottom of the tank body, and several reinforcing plates are set around the positioning annular seat, which can greatly improve the support strength of the bottom of the inner sleeve, thereby avoiding the problem of deformation due to insufficient radial support force at the bottom of the inner sleeve caused by the existence of the cavity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model.

[0016] In the diagram: 1. Tank body; 2. Cover plate; 3. Inner sleeve; 4. Annular plate; 5. Inner coil; 6. Positioning annular seat; 7. Reinforcing plate; 8. Cavity; 9. Heat exchange medium inlet; 10. Heat exchange medium outlet; 11. Main condensate drain outlet; 12. Spiral staircase; 13. Guardrail; 14. Manhole; 15. Feed inlet; 16. Temperature sensor mounting pipe; 17. Backup condensate drain outlet; 18. Discharge outlet. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-2This utility model provides a technical solution: an internal coil type styrene raw material storage tank, including a tank body 1, a cover plate 2, an inner sleeve 3, an annular plate 4, and an inner coil 5. The top of the tank body 1 is provided with a cover plate 2, and a guardrail 13 is provided around the top of the cover plate 2 to ensure the safety of workers climbing to the top of the tower and prevent falls from height. The upper surface of the cover plate 2 is also provided with a manhole 14 and a feed inlet 15. The manhole 14 facilitates manual entry into the tank body 1, and the feed inlet 15 allows styrene raw materials to enter the tank body 1. The bottom of the tank body 1 is coaxial. A positioning annular seat 6 is provided, and several reinforcing plates 7 are provided around the positioning annular seat 6. An inner sleeve 3 is coaxially installed inside the tank body 1. The bottom of the inner sleeve 3 is connected to the inner wall of the positioning annular seat 6. An inner coil 5 is provided on the inner wall of the inner sleeve 3. An annular plate 4 is provided on the upper part of the inner sleeve 3. The outer periphery of the annular plate 4 is connected to the inner wall of the tank body 1. The height of the annular plate 4 gradually decreases from the outside to the inside and has an inclination angle of 1 to 5° to ensure that the styrene raw material does not accumulate on the annular plate 4. The bottom of the inner sleeve 3 is connected to the bottom of the inside of the tank body 1. The tank body 1, the inner sleeve 3 and A cavity 8 is formed between the annular plates 4. A heat exchange medium inlet 9 is provided at the lower part of the inner coil 5, and a heat exchange medium outlet 10 is provided at the upper part of the inner coil 5. Both the heat exchange medium inlet 9 and the heat exchange medium outlet 10 pass through the inner sleeve 3 and the side wall of the tank body 1. A main condensate drain outlet 11 is provided at the bottom of the tank body 1, located in the cavity 8. A spiral staircase 12 is provided around the tank body 1 to facilitate personnel to climb to the top of the tank for maintenance. An obliquely arranged temperature sensor mounting pipe 16 is provided through the side wall of the tank body 1. The temperature sensor mounting pipe 16 also passes through the inner sleeve 3. The sleeve 3 is used to install the temperature sensor through the temperature sensor mounting tube 16. The sleeve passes through the inner sleeve to ensure that the temperature sensor can successfully detect the temperature inside the inner sleeve 3. A spare condensate drain outlet 17 is provided on one side of the lower part of the tank body 1 and located in the cavity 8, so that when the main condensate drain outlet 11 is unusable or inconvenient to install, the condensate can be discharged through the spare condensate drain outlet 17. Several discharge ports 18 are also provided at the lower part of the tank body 1. The discharge ports 18 also pass through the inner sleeve 3, and the styrene raw material can be discharged through the discharge ports 18.

[0020] Installation method and operating principle: During installation, the positioning ring seat 6 is coaxially welded to the bottom of the tank body 1. Simultaneously, the reinforcing plate 7 is welded to both the positioning ring seat 6 and the bottom of the tank body 1 to ensure the structural strength of the positioning ring seat 6. The inner coil 5 is welded to the inner wall of the inner sleeve 3. Then, using a crane, the inner sleeve and annular plate 4 are placed into the tank body 1, and the bottom of the inner sleeve 3 is connected to and welded to the positioning ring seat 6. The bottom of the inner sleeve 3 is then welded to the bottom of the tank body 1. The heat exchange medium inlet 9 and heat exchange medium outlet 10 pass through the side wall of the tank body 1 and are welded to both ends of the inner coil 5. The heat exchange medium inlet 9 and heat exchange medium outlet 10 are also welded to the side wall of the tank body 1 to ensure the sealing of the cavity 8. Similarly, the temperature sensor mounting tube 16 passes through the tank body 1 and the inner sleeve 3, and is welded to both the tank body 1 and the inner sleeve 3 to ensure the sealing of the cavity 8. Place the annular plate 4 inside the tank body 1, and weld the annular plate 4 to the inner sleeve 3 and the inner wall of the tank body 1 respectively. Seal the cavity 8, and finally install the cover plate 2 and the ladder to complete the installation. In use, the styrene raw material is pumped from the tanker into the tank body 1 through a pump, and enters the inner coil 5 through the heat exchange medium to control the internal temperature of the tank body 1 at 5-20℃. When condensate is generated in the cavity 8, it can be discharged through the main condensate drain outlet 11 or the backup condensate drain outlet 17. This utility model has a reasonable structure. The tank body 1 is provided with an inner sleeve 3, and an inner coil 5 is provided on the inner wall of the inner sleeve 3. A cavity 8 is formed between the inner sleeve 3, the annular plate 4 and the tank body 1. When heat exchange is carried out through the medium inside the inner coil 5, the influence of the external temperature on the internal temperature of the tank body 1 can be greatly reduced. In addition, a positioning annular seat 6 is provided at the bottom of the tank body 1, and several reinforcing plates 7 are provided around the positioning annular seat 6, which can greatly improve the support strength of the bottom of the inner sleeve 3, thereby avoiding the problem of deformation due to insufficient radial support force at the bottom of the inner sleeve 3 caused by the existence of the cavity 8.

[0021] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and 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 and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An internal coil styrene feed storage tank characterized by: The system includes a tank body (1), a cover plate (2), an inner sleeve (3), an annular plate (4), and an inner coil (5). The top of the tank body (1) is provided with a cover plate (2). A positioning annular seat (6) is coaxially provided at the bottom of the tank body (1). Several reinforcing plates (7) are provided around the positioning annular seat (6). The inner sleeve (3) is coaxially provided inside the tank body (1). The bottom of the inner sleeve (3) is connected to the inner wall of the positioning annular seat (6). An inner coil (5) is provided on the inner wall of the inner sleeve (3). An annular plate (4) is provided on the upper part of the inner sleeve (3). The outer periphery of the plate (4) is connected to the inner wall of the tank (1), the bottom of the inner sleeve (3) is connected to the bottom of the tank (1), and a cavity (8) is formed between the tank (1), the inner sleeve (3) and the annular plate (4). A heat exchange medium inlet (9) is provided at the lower part of the inner coil (5), and a heat exchange medium outlet (10) is provided at the upper part of the inner coil (5). Both the heat exchange medium inlet (9) and the heat exchange medium outlet (10) pass through the inner sleeve (3) and the side wall of the tank (1). A main condensate drain outlet (11) is provided at the bottom of the tank (1) and at the cavity (8).

2. A storage tank for styrene feedstock in the form of an inner coil according to claim 1, characterized in that: A spiral staircase (12) is provided around the tank body (1).

3. The internal coil styrene feed storage tank of claim 1, wherein: The top periphery of the cover plate (2) is provided with a guardrail (13), and the upper surface of the cover plate (2) is also provided with a manhole (14) and a feed inlet (15).

4. The internal coil styrene feed storage tank of claim 1 wherein: A temperature sensor mounting tube (16) arranged at an angle is provided through the side wall of the tank (1), and the temperature sensor mounting tube (16) also passes through the inner sleeve (3).

5. The internal coil styrene feed storage tank of claim 1 wherein: A spare condensate drain outlet (17) is provided on one side of the lower part of the tank (1) and in the cavity (8).

6. A storage tank for styrene feedstock in the form of an inner coil according to claim 1, characterized in that: The lower part of the tank (1) is also provided with several discharge ports (18), and the discharge ports (18) also pass through the inner sleeve (3).

7. The internal coil styrene feed storage tank of claim 1 wherein: The height of the annular plate (4) gradually decreases from the outside to the inside and has an inclination angle of 1 to 5°.

Images