A heating device for producing triethylene glycol

Abstract

This utility model relates to the field of heated reaction vessels, and discloses a heating device for producing triethylene glycol, including a reaction vessel. An inlet head is connected through and fixedly to the top left side of the reaction vessel, and an outlet head is connected through and fixedly to the bottom center of the reaction vessel. A heating pipe is installed inside the reaction vessel, and a cooling jacket is fixedly connected to the outer wall of the reaction vessel. In this utility model, the interior of the reaction vessel is cleaned by a combination of a solenoid valve, water pipe, nozzle, gas pipe, nitrogen generator, water pump, water tank, nitrogen solenoid valve, and T-connector, followed by drying. This achieves thorough cleaning without residue. The cooling jacket, temperature sensor, display screen, cooling fan, cooling box, inlet pipe, outlet pipe, and circulating water pump work together to dissipate heat when the internal temperature of the reaction vessel is too high, preventing excessively high internal temperatures from affecting the internal chemical reaction and causing damage to the equipment due to prolonged high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of heating reaction vessel technology, specifically a heating device for producing triethylene glycol. Background Technology

[0002] Triethylene glycol, abbreviated as TEG, is an important organic compound belonging to the polyol class and is a homologue of ethylene glycol. It has wide applications in industrial production, especially in the chemical, pharmaceutical, textile, electronics, and environmental protection fields.

[0003] The triethylene glycol (TEG) heating unit is an indispensable key piece of equipment in the TEG production process. Its core function is to provide the necessary heat energy to the TEG solution to support key process steps such as regeneration (separation of water from rich liquor) or distillation (purification of TEG products). The type, design, and operation of the heating unit directly affect the efficiency, safety, product quality, and economy of TEG production.

[0004] However, the aforementioned triethylene glycol heating device still has the following problems: 1. Low cleaning efficiency of the inside of the reactor; some residual moisture may remain after cleaning, affecting the quality of the next batch of products. 2. Inaccurate temperature control of the internal products, and poor heat dissipation of the heat dissipation device, affecting the chemical reaction effect of the internal products and causing equipment damage.

[0005] To address the aforementioned issues, a heating device for producing triethylene glycol is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a heating device for producing triethylene glycol, which solves the problems of low cleaning efficiency, residual moisture, inaccurate temperature control, and poor heat dissipation in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heating device for producing triethylene glycol, comprising a reaction vessel, an inlet head fixedly connected through and to the top left side of the reaction vessel, an outlet head fixedly connected through and to the bottom middle of the reaction vessel, a heating pipe disposed inside the reaction vessel, a cooling jacket fixedly connected to the outer wall of the reaction vessel, a display screen disposed at the bottom front side of the reaction vessel, a three-way pipe fixedly connected to the top middle of the reaction vessel, a nozzle fixedly connected to the bottom of the three-way pipe, a nitrogen generator disposed at the rear left side of the reaction vessel, a water tank disposed at the rear of the nitrogen generator, a water inlet pipe fixedly connected to the top right side of the cooling jacket, a cooling box disposed on the right side of the reaction vessel, and a water outlet pipe fixedly connected to the bottom right side of the cooling jacket, the water outlet pipe being fixedly connected to the cooling box.

[0008] As a further description of the above technical solution: temperature sensors are fixedly connected to both the inner wall of the reactor and the middle of the water outlet pipe.

[0009] As a further description of the above technical solution: Solenoid valves are provided at the middle of the right side of the three-way pipe and at one end of the water outlet pipe.

[0010] As a further description of the above technical solution: a water pump is fixedly connected to one side of the water tank, a water pipe is fixedly connected to the outlet of the water pump, and the water pipe is fixedly connected to a T-shaped pipe.

[0011] As a further description of the above technical solution: the outlet of the nitrogen generator is fixedly connected to a gas pipe, the gas pipe is fixedly connected to a three-way pipe, and a nitrogen solenoid valve is provided at one end of the gas pipe.

[0012] As a further description of the above technical solution: support feet are fixedly connected to the four corners of the bottom of the reactor.

[0013] As a further description of the above technical solution: a cooling fan is fixedly connected to the middle of the right side of the cooling box.

[0014] As a further description of the above technical solution: a circulating water pump is fixedly connected to the rear of the cooling tank, and the circulating water pump is fixedly connected to the water inlet pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The present invention provides a heating device for producing triethylene glycol. First, a three-way pipe is located in the middle of the top of the reaction vessel. A water pipe is located at the top of the three-way pipe. A water pump is located at one end of the water pipe. A water tank is located at one end of the water pump. A gas pipe is located on one side of the three-way pipe. A nitrogen generator is located at one end of the gas pipe. A spray nozzle is located at the bottom of the three-way pipe. When cleaning the reaction vessel, the solenoid valve of the three-way pipe is opened to start the water pump, which delivers water from the tank to the spray nozzle to clean the inside of the reaction vessel. Then, the nitrogen solenoid valve is opened to start the nitrogen generator, which delivers nitrogen to the spray nozzle to remove moisture and achieve a drying effect.

[0017] 2. The present invention provides a heating device for producing triethylene glycol, which has temperature sensors on the inner wall of the reactor and in the middle of the outlet pipe. There is an inlet pipe on the top right side of the cooling jacket and an outlet pipe on the bottom right side of the cooling jacket. There is a circulating water pump at one end of the inlet pipe, and a cooling box at the inlet of the circulating water pump. There is a cooling fan on the right side of the cooling box. The temperature sensors detect and display the internal temperature of the reactor. If the temperature is too high, the circulating water pump is controlled to deliver cooling water to the cooling jacket for heat dissipation. Then, the water flows back to the cooling box through the temperature sensor and solenoid valve on the outlet pipe and is cooled by the cooling fan. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure of this utility model;

[0019] Figure 2This is a right-side perspective view of the present invention;

[0020] Figure 3 This is a diagram of the internal structure of the reaction vessel of this utility model;

[0021] Figure 4 This is a structural diagram of the cleaning device of this utility model.

[0022] In the diagram: 1. Reactor; 2. Inlet head; 3. Heating tube; 4. Outlet head; 5. Cooling jacket; 6. Solenoid valve; 7. Support leg; 8. Display screen; 9. Temperature sensor; 10. Cooling fan; 11. Cooling tank; 12. Water inlet pipe; 13. Circulating water pump; 14. Water outlet pipe; 15. Nitrogen solenoid valve; 16. Water pipe; 17. Nozzle; 18. Gas pipe; 19. Nitrogen generator; 20. Water pump; 21. Water tank; 22. T-connector. Detailed Implementation

[0023] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Referring to 1-4, one embodiment of this utility model provides a heating device for producing triethylene glycol, comprising a reaction vessel 1 for storing and heating triethylene glycol raw materials; an inlet head 2 for conveying triethylene glycol for chemical reaction, extending through and being fixedly connected to the top left side of the reaction vessel 1; an outlet head 4 for conveying the reacted triethylene glycol, extending through and being fixedly connected to the bottom center of the reaction vessel 1; a heating tube 3 for heating the triethylene glycol inside the reaction vessel 1; a cooling jacket 5 for cooling the reaction vessel 1, fixedly connected to the outer wall of the reaction vessel 1; and a display screen 8 at the bottom front side of the reaction vessel 1 for observing the temperature feedback from the temperature sensor 9 and displaying the control of the solenoid valve 6. Screen 8, a three-way pipe 22 is fixedly connected to the middle of the top of the reactor 1, which facilitates the transportation of water and nitrogen. A nozzle 17 is fixedly connected to the bottom of the three-way pipe 22, which is used to spray water and nitrogen from the nozzle 17 to clean and dry the interior. A nitrogen generator 19 is set at the rear left side of the reactor 1, which is a device for producing nitrogen. A water tank 21 is set at the rear of the nitrogen generator 19, which is a container for storing water. A water inlet pipe 12 is fixedly connected to the top right side of the cooling jacket 5, which is used to introduce cooling water into the cooling jacket 5. A cooling box 11 is set on the right side of the reactor 1, which is a container for storing cooling water. A water outlet pipe 14 is fixedly connected to the bottom right side of the cooling jacket 5, which is used to return the heat-absorbing cooling water to the cooling box 11. The water outlet pipe 14 is fixedly connected to the cooling box 11.

[0026] Temperature sensors 9 are fixedly connected to the inner wall of the reactor 1 and the middle of the outlet pipe 14 to detect the temperature of the cooling water inside the reactor 1 and the outlet pipe 14. Solenoid valves 6 are installed on the middle right side of the three-way pipe 22 and at one end of the outlet pipe 14 to control the opening and closing of the three-way pipe 22 and the outlet pipe 14. A water pump 20 is fixedly connected to one side of the water tank 21 to pump water out of the tank. A water pipe 16 is fixedly connected to the outlet of the water pump 20 to transport the water pumped out to the nozzle 17. The water pipe 16 is fixedly connected to the three-way pipe 22. A gas pipe 18 is fixedly connected to the outlet of the nitrogen generator 19 to transport nitrogen from the nitrogen generator 19. The air pipe 18 leads to the nozzle 17. The air pipe 18 is fixedly connected to the three-way pipe 22. A nitrogen solenoid valve 15 is installed at one end of the air pipe 18 to control the opening and closing of the air pipe 18. Support feet 7 are fixedly connected to the four corners of the bottom of the reactor 1 to support the support feet 7 of the top reactor 1. A cooling fan 10 is fixedly connected to the middle of the right side of the cooling box 11 to dissipate the heat of the cooling water inside the cooling box 11. A circulating water pump 13 is fixedly connected to the rear of the cooling box 11 to draw out the cooling water inside the cooling box 11 and deliver it to the circulating water pump 13 inside the cooling jacket 5 through the water inlet pipe 12. The circulating water pump 13 is fixedly connected to the water inlet pipe 12.

[0027] Working Principle: First, triethylene glycol is introduced into reactor 1 through the inlet 2 at the top. Then, heating tube 3 is turned on to heat the triethylene glycol and initiate the reaction. The internal temperature is monitored by temperature sensor 9 on the inner wall of reactor 1 and fed back to display screen 8 for observation. This process ensures the triethylene glycol is heated to the optimal temperature to increase the reaction rate. When the temperature detected by temperature sensor 9 exceeds a predetermined value, a warning is issued to display screen 8. Display screen 8 then activates circulating water pump 13, which draws cooling water from cooling tank 11 and delivers it to cooling jacket 5 through inlet pipe 12. This absorbs heat from the surface of reactor 1, causing the cooling water temperature to rise rapidly. Temperature sensor 9 on outlet pipe 14 monitors the cooling water temperature, and when a certain temperature is detected, it is fed back to display screen 8. Screen 8 controls the solenoid valve 6 to open, allowing the cooling water inside the cooling jacket 5 to flow back into the cooling tank 11 through the outlet pipe 14. The temperature sensor 9 closes if it does not detect an excessively high temperature. The cooling fan 10 of the cooling tank 11 then cools the inside of the cooling tank 11, effectively dissipating heat. The triethylene glycol that has completed the reaction flows out through the pump body controlled by the liquid outlet 4 at the bottom of the reactor 1. To clean it, the solenoid valve 6 on the water pump 20 and the three-way pipe 22 is opened. The water pump 20 delivers water from the water tank 21 to the nozzle 17 through the water pipe 16 to clean the inside of the reactor 1. Then, by opening the nitrogen solenoid valve 15, the nitrogen generator 19 is turned on, and nitrogen is delivered to the nozzle 17 through the gas pipe 18. The nitrogen carries away the moisture inside the reactor 1 and is discharged through the bottom liquid outlet 4, achieving the effect of cleaning the inside of the reactor 1 without leaving any moisture.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production triethylene glycol heating device comprising a reactor (1), characterized in that: A liquid inlet head (2) is fixedly connected to the top left side of the reactor (1), and a liquid outlet head (4) is fixedly connected to the bottom middle of the reactor (1). A heating pipe (3) is installed inside the reactor (1). A cooling jacket (5) is fixedly connected to the outer wall of the reactor (1). A display screen (8) is installed at the bottom front side of the reactor (1). A three-way pipe (22) is fixedly connected to the top middle of the reactor (1). A nozzle (17) is fixedly connected to the bottom of the three-way pipe (22). A nitrogen generator (19) is installed at the rear left side of the reactor (1). A water tank (21) is installed at the rear of the nitrogen generator (19). A water inlet pipe (12) is fixedly connected to the top right side of the cooling jacket (5). A cooling box (11) is installed on the right side of the reactor (1). A water outlet pipe (14) is fixedly connected to the bottom right side of the cooling jacket (5). The water outlet pipe (14) is fixedly connected to the cooling box (11).

2. A triethylene glycol heating apparatus according to claim 1, wherein: Temperature sensors (9) are fixedly connected to the inner wall of the reactor (1) and the middle of the outlet pipe (14).

3. A triethylene glycol heating apparatus according to claim 1, wherein: Solenoid valves (6) are installed on the middle right side of the three-way pipe (22) and at one end of the outlet pipe (14).

4. A triethylene glycol heating apparatus according to claim 1, wherein: A water pump (20) is fixedly connected to one side of the water tank (21), and a water pipe (16) is fixedly connected to the outlet of the water pump (20). The water pipe (16) is fixedly connected to the tee pipe (22).

5. A triethylene glycol heating apparatus according to claim 1, wherein: The outlet of the nitrogen generator (19) is fixedly connected to a gas pipe (18), which is fixedly connected to a three-way pipe (22), and a nitrogen solenoid valve (15) is provided at one end of the gas pipe (18).

6. A triethylene glycol heating apparatus according to claim 1, wherein: The reactor (1) is fixedly connected to four support feet (7) at the four corners of its bottom.

7. The heating apparatus for producing triethylene glycol according to claim 1, characterized in that: A cooling fan (10) is fixedly connected to the middle right side of the cooling box (11).

8. A triethylene glycol heating apparatus according to claim 1, wherein: The cooling tank (11) is fixedly connected to a circulating water pump (13) at the rear, and the circulating water pump (13) is fixedly connected to the water inlet pipe (12).

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