Optimized operating system for improving product quality and reducing energy consumption in chemical production

Abstract

The utility model discloses an optimized operating system for improving product quality and reducing energy consumption in chemical industry production, which relates to the technical field of chemical industry production and comprises an alcoholization cooler, the bottom of the alcoholization cooler is movably connected with a communicating assembly through a screw, and the communicating assembly comprises a switching end, a first communicating pipe, a second communicating pipe and a third communicating pipe. The communication assembly is additionally arranged on the circulating alcohol condensation return line and provided with the first communication pipe, the second communication pipe and the third communication pipe, one pipeline is connected with an outlet of the alcoholization cooler, the other pipeline is connected with an inlet of the alcohol-water separator tank, and the other pipeline is connected into the circulating alcohol tank. The alcohol content in a product produced by a chemical device can be effectively reduced, the problem of high crude ester alcohol content of a dealcoholization system is solved, the product quality is improved, and meanwhile, the steam energy consumption of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, and in particular to an operating system for optimizing chemical production to improve product quality and reduce energy consumption. Background Art

[0002] The esterification reaction of dioctyl terephthalate production equipment is a reaction between terephthalic acid and octanol under the action of a catalyst. During the esterification reaction, an excess of circulating alcohol is added to increase the reaction conversion rate and the reaction speed.

[0003] However, in the prior art, the production process of most production devices is to stop heating the esterification kettle and perform water discharge and pressure relief operations after the esterification reaction is qualified. During the pressure relief period after the water discharge is completed, the reflux alcohol produced by the esterification reaction system is still circulated back to the esterification kettle in the system. This process will leave more circulating alcohol in the product and reduce the temperature of the product when it is discharged. When these crude products containing more circulating alcohol enter the discharge tank and then enter the next dealcoholization system, on the one hand, more circulating alcohol needs to be removed and recovered, which increases the processing load of the dealcoholization system and affects the removal efficiency of circulating alcohol; on the other hand, the lower feed temperature and the larger amount of circulating alcohol removed will result in the need to use high-pressure steam to heat the bottom temperature of the tower to maintain it at the operating temperature required, resulting in a higher alcohol content in the product while increasing the consumption of steam energy. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that a large amount of circulating alcohol needs to be removed and recovered, which increases the processing load of the dealcoholization system and affects the removal efficiency of the circulating alcohol, and proposes an operating system for optimizing chemical production to improve product quality and reduce energy consumption.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a chemical production system for improving product quality and reducing energy consumption and optimizing the operating system, comprising an alcoholization cooler, the bottom of which is movably connected to a connecting component by screws;

[0006] The connecting component includes an adapter terminal, a first connecting pipe, a second connecting pipe and a third connecting pipe, one end of the first connecting pipe is movably connected to one end of the adapter terminal through a screw, one end of the second connecting pipe is movably connected to the other end of the adapter terminal through a screw, one end of the third connecting pipe is movably connected to one side of the adapter terminal through a screw, the third connecting pipe is located between the first connecting pipe and the second connecting pipe, the first connecting pipe and the second connecting pipe are on the same straight line, a valve is arranged inside the adapter terminal, the other end of the second connecting pipe is connected to the alcohol-water separator, and the other end of the third connecting pipe is connected to the circulating alcohol tank.

[0007] Preferably, a protective sleeve is fixedly mounted on the outer wall of the alcoholization cooler, and a reinforcement shell is fixedly mounted on the outer wall of one of the protective sleeves.

[0008] Preferably, a movable support rod is slidably connected inside the reinforcement shell, and a horizontal cross bar is fixedly installed at one end of the movable support rod.

[0009] Preferably, the horizontal cross bar is located on both sides of the adapter terminal, and a positioning block is inserted into one end of the horizontal cross bar.

[0010] Preferably, one side of the positioning block is clamped on the outer wall of the adapter terminal.

[0011] Preferably, an anti-drop plate is fixedly mounted on the other end of the movable support rod, and the anti-drop plate is slidably connected to the inside of the reinforced shell.

[0012] Preferably, a receiving cavity is provided at the junction of the reinforcement shell and the anti-drop plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a connecting component is added to the circulating alcohol condensation reflux line. The connecting component has three pipes, namely, a first connecting pipe, a second connecting pipe and a third connecting pipe. One pipe is connected to the outlet of the alcoholization cooler, one pipe is connected to the inlet of the alcohol-water separator tank, and one pipe is connected to the circulating alcohol tank. By recovering the circulating alcohol in advance, the alcohol content in the product produced by the chemical plant can be effectively reduced, the problem of high crude ester alcohol content in the dealcoholization system can be solved, the product quality can be improved, and the steam energy consumption of the device can be reduced. At the same time, the adapter end can be connected to the DCS control system, which is convenient for realizing automatic operation and reducing labor costs.

[0015] 2. In the utility model, a reinforcement shell is added to the outer wall of the alcoholization cooler, and a movable support rod is connected inside the reinforcement shell. The movable support rod fixes the adapter end through a horizontal cross bar at the end to improve the stability of the adapter end. At the same time, a positioning block is added at one end of the horizontal cross bar to clamp the other side of the adapter end, thereby realizing semi-enclosed protection for the adapter end, extending the service life of the adapter end, and minimizing the problem of shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of an operating system for improving product quality and reducing energy consumption in chemical production is proposed for the utility model;

[0017] Figure 2 The utility model proposes a reinforced shell and connecting component connection and structural schematic diagram for improving product quality and reducing energy consumption and optimizing the operating system in chemical production;

[0018] Figure 3 A top view of a reinforced shell for improving product quality and reducing energy consumption and optimizing the operating system in chemical production is proposed for the utility model;

[0019] Figure 4 The utility model provides a planar structural diagram of connected components for improving product quality and reducing energy consumption in chemical production and optimizing the operating system.

[0020] Legend: 1. Alcoholization cooler; 2. Connecting assembly; 3. Protective cover; 4. Reinforced shell; 5. Movable support rod; 6. Anti-drop plate; 7. Accommodating cavity; 8. Horizontal cross bar; 9. Positioning block; 21. Adapter terminal; 22. First connecting pipe; 23. Second connecting pipe; 24. Third connecting pipe. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides an operation system for optimizing chemical production to improve product quality and reduce energy consumption, including an alcoholization cooler 1, a connecting component 2 is movably connected to the bottom of the alcoholization cooler 1 through screws, the connecting component 2 includes an adapter terminal 21, a first connecting pipe 22, a second connecting pipe 23 and a third connecting pipe 24, one end of the first connecting pipe 22 is movably connected to one end of the adapter terminal 21 through screws, the other end of the first connecting pipe 22 is movably connected to the alcoholization cooler 1 through screws, one end of the second connecting pipe 23 is movably connected to the other end of the adapter terminal 21 through screws, one end of the third connecting pipe 24 is movably connected to one side of the adapter terminal 21 through screws, the third connecting pipe 24 is located between the first connecting pipe 22 and the second connecting pipe 23, the first connecting pipe 22 and the second connecting pipe 23 are on the same straight line, a valve is arranged inside the adapter terminal 21, the other end of the second connecting pipe 23 is connected to the alcohol-water separator, and the other end of the third connecting pipe 24 is connected to the circulating alcohol tank.

[0025] The specific configuration and function of this embodiment are described in detail below. The connecting component 2 has three pipes, namely, a first connecting pipe 22, a second connecting pipe 23 and a third connecting pipe 24, through the first two connecting pipes. The first connecting pipe 22 is connected to the outlet of the alcoholization cooler 1, the second connecting pipe 23 is connected to the inlet of the alcohol-water separator, and the third connecting pipe 24 is connected to the circulating alcohol tank. During use, the circulating alcohol can be recovered in advance, which can effectively reduce the alcohol content in the product produced by the chemical device;

[0026] During normal reaction, the adapter terminal 21 is in a closed state. At this time, the circulating alcohol condensed from the alcoholization cooler 1 can enter the alcohol-water separator through the first connecting pipe 22 and the second connecting pipe 23, and then flow back into the esterification kettle normally, and circulate in the system to meet the normal reaction needs. During the pressure relief after the esterification is qualified and the subsequent discharge process, when the alcohol-water separation tank overflows, the valve in the adapter terminal 21 is opened to transport the circulating alcohol from the third connecting pipe 24 to the circulating alcohol tank. On this basis, connecting the adapter terminal 21 to the DCS control can realize automatic switching operation of the system, thereby reducing labor costs and improving the timeliness and accuracy of system operation.

[0027] Embodiment 2

[0028] like Figure 2 and Figure 3 As shown, a protective cover 3 is fixedly installed on the outer wall of the alcoholization cooler 1, a reinforcement shell 4 is fixedly installed on the outer wall of one of the protective covers 3, a movable support rod 5 is slidably connected inside the reinforcement shell 4, a horizontal cross bar 8 is fixedly installed on one end of the movable support rod 5, the horizontal cross bar 8 is located on both sides of the adapter terminal 21, a positioning block 9 is inserted at one end of the horizontal cross bar 8, one side of the positioning block 9 is clamped on the outer wall of the adapter terminal 21, an anti-slip plate 6 is fixedly installed on the other end of the movable support rod 5, the anti-slip plate 6 is slidably connected to the inside of the reinforcement shell 4, and a receiving cavity 7 is opened at the junction of the reinforcement shell 4 and the anti-slip plate 6.

[0029] The effect achieved by the whole embodiment is that the protective cover 3 determines the positions of the two reinforcement shells 4, and a movable support rod 5 is connected to the interior of one of the reinforcement shells 4, and the movable support rod 5 is connected to the reinforcement shell 4 through the anti-drop plate 6. The existence of the accommodating cavity 7 provides a movable space for the anti-drop plate 6, which is convenient for disassembly. When in use, the movable support rod 5 can be fixed by driving screws into the contact portion between the anti-drop plate 6 and the reinforcement shell 4;

[0030] The movable support rod 5 fixes the adapter terminal 21 through the horizontal cross bar 8 at the end, thereby improving the stability of the adapter terminal 21. At the same time, a positioning block 9 is added at one end of the horizontal cross bar 8 to clamp the other side of the adapter terminal 21, thereby achieving semi-enclosed protection for the adapter terminal 21, extending the service life of the adapter terminal 21, and minimizing the problem of shaking.

[0031] The use method and working principle of the device: During normal reaction, the adapter end 21 is in a closed state. At this time, the circulating alcohol condensed from the alcoholization cooler 1 can enter the alcohol-water separator through the first connecting pipe 22 and the second connecting pipe 23, and then normally reflux into the esterification kettle, and circulate in the system to meet the normal reaction requirements. After the esterification is qualified and the water is discharged, the pressure is released and in the subsequent discharge process, when the alcohol-water separation tank overflows, the valve in the adapter end 21 is opened to transport the circulating alcohol from the third connecting pipe 24 to the circulating alcohol tank;

[0032] When installing this connecting component 2, the anti-drop plate 6 can be moved along the direction of the accommodating cavity 7, the position of the movable support rod 5 can be adjusted, and then the first connecting pipe 22 can be connected to the alcoholization cooler 1 to determine the position of the adapter terminal 21. Then, the movable support rod 5 can be moved again, and the horizontal cross bar 8 can be moved to the vicinity of the adapter terminal 21. Then, the positioning block 9 can be inserted into one end of the horizontal cross bar 8 to complete the fixation and limitation of the adapter terminal 21, thereby improving the stability of the adapter terminal 21.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A chemical production system for improving product quality and reducing energy consumption, comprising a ethanol cooler (1), characterized in that: The bottom of the alcoholization cooler (1) is movably connected to a connecting component (2) via screws; The connecting assembly (2) comprises an adapter terminal (21), a first connecting pipe (22), a second connecting pipe (23) and a third connecting pipe (24); one end of the first connecting pipe (22) is movably connected to one end of the adapter terminal (21) by means of a screw; the other end of the first connecting pipe (22) is movably connected to the alcoholization cooler (1) by means of a screw; one end of the second connecting pipe (23) is movably connected to the other end of the adapter terminal (21) by means of a screw; one end of the third connecting pipe (24) is movably connected to one side of the adapter terminal (21) by means of a screw; the third connecting pipe (24) is located between the first connecting pipe (22) and the second connecting pipe (23); the first connecting pipe (22) and the second connecting pipe (23) are located on the same straight line; a valve is provided inside the adapter terminal (21); the other end of the second connecting pipe (23) is connected to the alcohol-water separator; and the other end of the third connecting pipe (24) is connected to the circulating alcohol tank.

2. According to claim 1, a chemical production system for improving product quality and reducing energy consumption optimization operation system is characterized by: A protective sleeve (3) is fixedly mounted on the outer wall of the alcoholization cooler (1), wherein a reinforcement shell (4) is fixedly mounted on the outer wall of one of the protective sleeves (3).

3. According to claim 2, a chemical production system for improving product quality and reducing energy consumption optimization operation system is characterized by: A movable support rod (5) is slidably connected to the interior of the reinforcement shell (4), and a horizontal cross bar (8) is fixedly mounted on one end of the movable support rod (5).

4. According to claim 3, a chemical production system for improving product quality and reducing energy consumption optimization operation system is characterized by: The horizontal cross bar (8) is located on both sides of the adapter end (21), and a positioning block (9) is inserted into one end of the horizontal cross bar (8).

5. According to claim 4, a chemical production system for improving product quality and reducing energy consumption optimization operation system is characterized by: One side of the positioning block (9) is clamped on the outer wall of the adapter end (21).

6. The method of optimizing the operation system for improving product quality and reducing energy consumption in chemical production according to claim 3, characterized in that: An anti-drop plate (6) is fixedly mounted on the other end of the movable support rod (5), and the anti-drop plate (6) is slidably connected to the interior of the reinforcement shell (4).

7. The system for optimizing the chemical production for improving product quality and reducing energy consumption according to claim 6, characterized in that: A receiving cavity (7) is provided at the junction of the reinforcement shell (4) and the anti-slip plate (6).

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