Intelligent heating and cooling device for chemical manufacturing equipment

Abstract

This utility model discloses an intelligent heating and cooling device for chemical manufacturing equipment, relating to the field of chemical manufacturing technology. It includes a chemical mixing tank for containing and stirring a chemical mixture; an external heat exchange tube, spiral-shaped, disposed inside the mixing tank; and a heat insulation shell located at the central axis of the external heat exchange tube and fixedly connected to the bottom center of the inner wall of the mixing tank. The heat insulation shell has a frustum-shaped vertical cross-section and is hollow inside. An inner heat exchange tube is vertically arranged along the outer surface of the heat insulation shell and distributed in a circular array around its central axis. Through holes connecting the inner heat exchange tube are provided on both the upper and lower sides of the heat insulation shell surface. This invention solves the problem that the heat transfer medium surrounds the outer layer of the mixture for heat exchange, making it difficult for the inner layer of the mixture to fully contact the heat exchange medium, resulting in poor heating and cooling effects in the middle region of the mixture and uneven temperature distribution in multiple areas within the mixture.

Description

Technical Field

[0001] This utility model relates to the field of chemical manufacturing technology, specifically to an intelligent heating and cooling device for chemical manufacturing equipment. Background Technology

[0002] In the process of chemical material processing and manufacturing, there are often strict requirements on the processing temperature. The generation of chemical substances can only be achieved within a certain temperature range. Therefore, chemical manufacturing equipment is often equipped with devices that can heat up and cool down to regulate the temperature of chemical materials during processing.

[0003] In existing technologies, pipes are often installed inside the tank wall of the processing tank to introduce a heat transfer medium. The heat of the heat transfer medium is transferred to the chemical mixture through the tank for heating, or the heat of the mixture is absorbed and carried away by the heat transfer medium to achieve a cooling effect.

[0004] However, the heat transfer medium surrounds the outer layer of the mixture for heat exchange, making it difficult for the inner layer of the mixture to fully contact the heat transfer medium. This results in poor heating and cooling effects in the middle region of the mixture, and uneven temperature distribution in multiple areas within the mixture. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent heating and cooling device for chemical manufacturing equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent heating and cooling device for chemical manufacturing equipment, comprising:

[0007] Chemical mixing tanks are used to contain and agitate chemical mixtures.

[0008] An external heat exchanger tube, which is spiral in shape, is installed inside a chemical mixing tank;

[0009] A heat insulation shell is located at the central axis of the external heat exchange tube and is fixedly connected to the center of the bottom of the inner wall of the chemical mixing tank. The vertical cross-section of the heat insulation shell is frustum-shaped, and the interior of the heat insulation shell is hollow.

[0010] The internal heat exchange tubes are vertically arranged along the outer surface of the insulation shell and distributed in a circular array around the central axis of the insulation shell. Through holes communicating with the internal heat exchange tubes are provided on both the upper and lower sides of the surface of the insulation shell.

[0011] Two multi-port pipes are respectively installed at the inner top and inner bottom of the heat insulation shell and are connected to the through hole;

[0012] The heat exchange mechanism has its inner bottom multi-port pipe and the upper open end of the outer heat exchange pipe connected to the output end of the heat exchange mechanism, and its inner top multi-port pipe and the lower open end of the outer heat exchange pipe connected to the input end of the heat exchange mechanism.

[0013] Preferably, the top of the chemical mixing tank is detachably connected to a sealing cover, and the top of the sealing cover has at least two mounting ports.

[0014] Preferably, a motor is detachably connected to the top of the sealing cover via an installation port, and an agitator is fixedly connected to the output end of the motor. The agitator is arranged in a ring array around the heat insulation shell and is located between the heat insulation shell and the inner wall of the chemical mixing tank.

[0015] Preferably, the blades of the stirring paddle are inclined about the support shaft of the blade.

[0016] Preferably, the blade tilt angle of the stirring paddle is 30°-60°.

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

[0018] This invention improves heat exchange efficiency by incorporating an insulated shell, inner heat exchange tubes, multi-pass pipes, and outer heat exchange tubes, creating two layers of heat exchange areas. The temperature difference within the mixing tank naturally forms a liquid circulation. When the heat exchange medium flows through the multi-pass pipes into the inner heat exchange tubes, multiple heat exchange channels are formed, reducing the marginal effect caused by the shrinking temperature difference. Compared to existing spiral channels, this design further enhances heat exchange efficiency without reducing the heat exchange area. The vertically arranged inner heat exchange tubes also act as guides. When the mixed liquid flows towards and contacts the insulated shell, it is blocked by the inner heat exchange tubes on both sides, allowing it to flow vertically along the surface of the insulated shell. This changes the height of the mixed liquid inside the chemical mixing tank, further improving the mixing effect. This invention solves the problem that the heat transfer medium only exchanges heat in the outer layer of the mixed liquid, making it difficult for the inner layer to fully contact the heat exchange medium, resulting in poor heating and cooling in the middle region of the mixed liquid and uneven temperature distribution across multiple areas. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the heat exchange mechanism connection of this utility model;

[0021] Figure 3 This is a schematic diagram of the heat insulation shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the multi-port pipe structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing cap structure of this utility model.

[0024] In the diagram: 1. Chemical mixing tank; 21. Insulated shell; 22. Inner heat exchanger tube; 23. Multi-port pipe; 24. Outer heat exchanger tube; 31. Heat exchanger; 32. Water tank; 4. Sealing cover. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 This utility model provides a technical solution: an intelligent heating and cooling device for chemical manufacturing equipment, comprising:

[0027] Chemical mixing tank 1 is used to contain and mix chemical mixtures. It is equipped with a temperature sensor to monitor the internal temperature in real time.

[0028] External heat exchange tube 24, which is spiral in shape, is installed inside the chemical mixing tank 1;

[0029] The heat insulation shell 21 is located at the central axis of the external heat exchange tube 24 and is fixedly connected to the bottom center of the inner wall of the chemical mixing tank 1. The vertical cross section of the heat insulation shell 21 is frustum-shaped and the interior of the heat insulation shell 21 is hollow.

[0030] The inner heat exchange tube 22 is vertically arranged along the outer surface of the heat insulation shell 21 and distributed in a ring array around the central axis of the heat insulation shell 21. The upper and lower sides of the surface of the heat insulation shell 21 are provided with through holes that connect to the inner heat exchange tube 22.

[0031] Two multi-port pipes 23 are respectively installed at the inner top and inner bottom of the heat insulation shell 21 and are connected to the through hole;

[0032] The heat exchange mechanism has an inner bottom multi-port pipe 23 and an outer heat exchange pipe 24. The upper open end of the pipes is connected to the output end of the heat exchange mechanism, and the lower open end of the pipes is connected to the input end of the heat exchange mechanism. The output end is the heat exchanger 31, and the input end is the water tank 32. The heat exchanger 31 and the water tank 32 are connected by pipes. The heat exchanger 31 is electrically connected to the temperature sensor inside the chemical mixing tank 1. When the temperature inside the chemical mixing tank 1 needs to be adjusted, the heat exchanger 31 is started.

[0033] In the embodiments of the above technical solution, the heat exchange medium is diverted into multiple inner heat exchange tubes 22 through the multi-pass pipe 23 at the bottom of the heat insulation shell 21 and flows upward simultaneously. It flows downward in the outer heat exchange tube 24. Part of the chemical mixture in the chemical mixing tank 1 contacts the inner wall of the chemical mixing tank 1 and exchanges heat through the outer heat exchange tube 24. Another part of the chemical mixture flows to the surface of the heat insulation shell 21 and the inner heat exchange tube 22 for heat exchange during stirring. The mixture flows obliquely upward along the surface of the heat insulation shell 21 between two adjacent inner heat exchange tubes 22.

[0034] A hollow heat-insulating shell 21 is set in the center of the chemical mixing tank. Multiple internal heat exchange tubes 22 are used to transfer the heat exchange medium from bottom to top, and external heat exchange tubes 24 inside the chemical mixing tank transfer the heat exchange medium from top to bottom. The two heat exchange zones improve the heat exchange effect.

[0035] The temperature difference is larger in the first half of the contact between the heat exchange medium and the chemical mixture, resulting in better heat exchange. The different flow directions of the inner heat exchange tube 22 and the outer heat exchange tube 24 make the heat exchange between the mixture in the upper outer region and the mixture in the lower inner region better, and the temperature changes faster and more fully. The temperature difference naturally forms liquid circulation inside the mixing tank, improving the heat exchange effect.

[0036] In existing spiral heat exchange channels, the heat exchange medium inside absorbs or transfers heat during the heat exchange process, and the temperature difference between it and the tank body becomes smaller and smaller, resulting in a gradual deterioration of the heat exchange effect. This application sets up a multi-pass pipe 23 in conjunction with a vertically arranged inner heat exchange pipe 22. When the heat exchange medium flows into the inner heat exchange pipe 22 through the multi-pass pipe 23, it can form multiple heat exchange channels, reducing the marginal effect caused by the shrinking temperature difference. Without reducing the heat exchange area, its heat exchange effect is further improved compared with the existing spiral channel.

[0037] The vertically arranged internal heat exchange tubes 22 also serve as flow guides. When the mixed liquid flows toward and contacts the heat insulation shell 21, it is blocked by the internal heat exchange tubes 22 on both sides and can flow vertically along the surface of the heat insulation shell 21, changing the height of the mixed liquid inside the chemical mixing tank 1 and further improving the mixing effect.

[0038] refer to Figure 1 and Figure 5 The top of the chemical mixing tank 1 is detachably connected to a sealing cover 4. The top of the sealing cover 4 has at least two installation ports. The sealing cover 4 is installed at the opening on the top of the chemical mixing tank 1 by bolts on the side. It can be removed to facilitate cleaning of the inner wall of the chemical mixing tank and the surface of the inner heat exchange tube 22, and to avoid chemical residues from adhering to the surface, which would lead to a deterioration in the heat exchange effect.

[0039] refer to Figure 1 and Figure 5The top of the sealing cover 4 is detachably connected to a motor through the installation port. The output end of the motor is fixedly connected to a stirring paddle. The stirring paddle is arranged in a ring array around the heat insulation shell 21. The stirring paddle is located between the heat insulation shell 21 and the inner wall of the chemical mixing tank 1. The stirring paddle is staggered from the heat insulation shell 21. When stirring, it pushes the mixture towards the inner wall of the chemical mixing tank 1 and the inner heat exchange tube 22, which improves the mixing effect and the heat exchange effect.

[0040] Furthermore, the impeller blades are inclined about the blade support shaft, which, in addition to stirring, can push the mixture upward or downward, thus improving the mixing effect.

[0041] Furthermore, the blades of the stirring paddle are tilted at an angle of 30°-60° to avoid excessive tilt angles that could lead to poor stirring performance.

[0042] 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.

[0043] 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. An intelligent heating and cooling device for chemical manufacturing equipment, characterized in that, include: Chemical mixing tank (1), which is used to contain and mix chemical mixtures; An external heat exchange tube (24) is spiral-shaped and is installed inside the chemical mixing tank (1); The heat insulation shell (21) is located at the center axis of the external heat exchange tube (24) and is fixedly connected to the bottom center of the inner wall of the chemical mixing tank (1). The vertical cross section of the heat insulation shell (21) is frustum-shaped and the interior of the heat insulation shell (21) is hollow. The inner heat exchange tubes (22) are vertically arranged along the outer surface of the heat insulation shell (21) and distributed in a ring array around the central axis of the heat insulation shell (21). The upper and lower sides of the surface of the heat insulation shell (21) are provided with through holes that connect to the inner heat exchange tubes (22). Two multi-port pipes (23) are respectively disposed at the inner top and inner bottom of the heat insulation shell (21) and are connected to the through hole; The heat exchange mechanism has its upper open end pipes of the inner bottom multi-port pipe (23) and the outer heat exchange pipe (24) connected to the output end of the heat exchange mechanism, and its lower open end pipes of the inner top multi-port pipe (23) and the outer heat exchange pipe (24) connected to the input end of the heat exchange mechanism.

2. The intelligent heating and cooling device for chemical manufacturing equipment according to claim 1, characterized in that: The top of the chemical mixing tank (1) is detachably connected to a sealing cover (4), and the top of the sealing cover (4) has at least two installation ports.

3. The intelligent heating and cooling device for chemical manufacturing equipment according to claim 2, characterized in that: The top of the sealing cover (4) is detachably connected to a motor through the installation port. The output end of the motor is fixedly connected to a stirring paddle. The stirring paddle is arranged in a ring array around the heat insulation shell (21). The stirring paddle is located between the heat insulation shell (21) and the inner wall of the chemical mixing tank (1).

4. The intelligent heating and cooling device for chemical manufacturing equipment according to claim 3, characterized in that: The blades of the agitator are inclined about the axis of the blade support shaft.

5. The intelligent heating and cooling device for chemical manufacturing equipment according to claim 4, characterized in that: The blade tilt angle of the agitator is 30°-60°.

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