Cascade control temperature control unit for accurately controlling temperature of materials in reaction kettle

Abstract

The utility model discloses a cascade control temperature control unit capable of accurately controlling reaction kettle material temperature, which comprises a main body, a primary heat dissipation mechanism and a secondary heat dissipation mechanism, and is characterized in that the main body comprises a heat exchange module and an auxiliary controller used for controlling the operation of the heat exchange module, and the auxiliary controller is an explosion-proof PID (Proportion Integration Differentiation) controller; the auxiliary controller is externally connected with a main controller used for monitoring the temperature of materials in the reaction kettle, the first-stage heat dissipation mechanism comprises an installation frame, the installation frame is fixedly connected with the heat exchange module, the front side of the installation frame is fixedly connected with a water tank, and the second-stage heat dissipation mechanism is fixedly connected with the installation frame and used for conducting air cooling heat dissipation on the first-stage heat dissipation mechanism and the auxiliary controller; the auxiliary controller has the advantages that the water tank is arranged, the heat dissipation plate strips are used for conducting heat dissipation on the auxiliary controller, compared with natural heat dissipation, the heat dissipation effect is improved, the secondary heat dissipation mechanism is arranged for conducting heat dissipation on the water tank, the heat dissipation plate strips and the auxiliary controller, and the heat dissipation effect on the auxiliary controller is directly and indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a cascade control temperature control unit for accurately controlling the temperature of the materials in a reaction kettle. Background Art

[0002] In industrial fields such as chemical industry, pharmaceuticals, and food, reaction kettles are important equipment for material mixing and chemical reactions. The temperature control in the reaction kettle is crucial for the stability of the production process and the quality of the products. Too high or too low temperature will directly affect the reaction rate, product yield, and safety. Therefore, in these processes, the accurate control of the temperature of the materials in the reaction kettle is a key topic in industrial production.

[0003] In order to achieve accurate control of the temperature of the reaction kettle, a cascade control system is usually adopted. The cascade control system realizes fine adjustment of the temperature in the reaction kettle by setting a main controller and a secondary controller. The main controller monitors the temperature of the materials in the reaction kettle and controls the temperature of external heating or cooling equipment such as heat exchangers through the secondary controller, thereby indirectly adjusting the temperature of the materials. This two-stage control method can effectively cope with common disturbances in the industrial production process and improve the response speed and control accuracy of the system.

[0004] In actual use, when the secondary controller controls the heat exchanger, it will be in a high-temperature environment for a long time. Especially when the heat exchanger works continuously, the secondary controller is easily affected by the surrounding high-temperature environment, resulting in an increase in the temperature of its internal electronic components, which may cause problems such as a decrease in control accuracy or equipment failure. And the controller of the cascade control system is usually an explosion-proof PID controller, which has high overall sealing performance, and its heat dissipation completely depends on natural heat dissipation of the shell, making it difficult to meet the heat dissipation requirements. Therefore, a cascade control temperature control unit for accurately controlling the temperature of the materials in a reaction kettle is proposed. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the above problems of a cascade control temperature control unit for accurately controlling the temperature of the materials in a reaction kettle, the utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a cascade control temperature control unit for accurately controlling the temperature of the materials in a reaction kettle, which is used to solve the above technical problems.

[0008] To solve the above technical problems, the present utility model provides the following technical solution: A cascade control temperature control unit for precisely controlling the temperature of the materials in a reaction kettle, comprising:

[0009] A main body, which includes a heat exchange module and a secondary controller for controlling the operation of the heat exchange module. The secondary controller is an explosion-proof PID controller, and the secondary controller is externally connected to a main controller for monitoring the temperature of the materials in the reaction kettle;

[0010] A primary heat dissipation mechanism, which includes a mounting frame. The mounting frame is fixedly connected to the heat exchange module. A water tank is fixedly connected to the front side of the mounting frame. A water pump is fixedly connected to the inner side of the water tank. A plurality of groups of primary heat dissipation fins are fixedly connected to the rear side of the water tank. A plurality of groups of the primary heat dissipation fins all penetrate the water tank. A heat dissipation strip is also fixedly connected to the front side of the mounting frame. The secondary controller is detachably connected to the front side of the heat dissipation strip. A plurality of groups of secondary heat dissipation fins are fixedly connected to the rear side of the heat dissipation strip. A serpentine channel is formed inside the heat dissipation strip. Both ends of the serpentine channel are fixedly connected and communicated with water pipes. One end of one of the water pipes away from the heat dissipation strip is fixedly connected to the water tank. The other end of the other water pipe away from the heat dissipation strip penetrates the water tank and is fixedly connected to the water pump outlet. The water tank is filled with a water cooling liquid;

[0011] A secondary heat dissipation mechanism, which is fixedly connected to the mounting frame and is used for air-cooling the primary heat dissipation mechanism and the secondary controller.

[0012] As a preferred scheme of the cascade control temperature control unit for precisely controlling the temperature of the materials in the reaction kettle of the present utility model, wherein: The secondary heat dissipation mechanism includes a cover body, a heat dissipation fan and a flow guide cover. The cover body is fixedly connected to the rear side of the mounting frame. Two mounting openings are symmetrically formed at the rear side of the heat dissipation fan. Two groups of the heat dissipation fans are provided. The two groups of the heat dissipation fans are respectively fixedly connected to the inner sides of the two mounting openings. The flow guide cover is arranged at the front side of the mounting frame and is located between the water tank and the heat dissipation strip. The rear side of the flow guide cover is open at the side close to the secondary controller. Connecting plates are fixedly connected to both the upper and lower sides of the flow guide cover. The two connecting plates are both fixedly connected to the mounting frame.

[0013] As a preferred scheme of the cascade control temperature control unit for precisely controlling the temperature of the materials in the reaction kettle of the present utility model, wherein: One of the heat dissipation fans is positioned opposite to a plurality of groups of primary heat dissipation fins, and the other heat dissipation fan is opposite to a plurality of groups of secondary heat dissipation fins.

[0014] As a preferred scheme of the cascade control temperature control unit for precisely controlling the temperature of the materials in the reaction kettle of the present utility model, wherein: The plurality of groups of primary heat dissipation fins are arranged at equal intervals, and the plurality of groups of secondary heat dissipation fins are arranged at equal intervals.

[0015] As a preferred solution of the cascade control temperature control unit for precisely controlling the material temperature of the reaction kettle in the present utility model, wherein: the water tank, the first-stage heat dissipation fins, the heat dissipation slats and the second-stage heat dissipation fins are all made of aluminum alloy material, and the heat dissipation slats and the second-stage heat dissipation fins are integrally formed.

[0016] As a preferred solution of the cascade control temperature control unit for precisely controlling the material temperature of the reaction kettle in the present utility model, wherein: there are four groups of outwardly extending protrusions provided at the rear side of the secondary controller, and slots are opened at positions of the four groups of protrusions facing the heat dissipation slats. Screw holes are opened at positions of the heat dissipation slats facing the four groups of slots and are fitted with screws. The four groups of screws respectively pass through the four groups of slots and are screwed into the corresponding screw holes, and the secondary controller is detachably connected to the heat dissipation slats through the four groups of screws.

[0017] The beneficial effects of the present utility model: By arranging the water tank to dissipate heat from the secondary controller through the heat dissipation slats, the heat dissipation effect is improved compared with natural heat dissipation. By arranging the second-stage heat dissipation mechanism to dissipate heat from the water tank, the heat dissipation slats and the secondary controller, the heat dissipation effect on the secondary controller is directly and indirectly improved, which is beneficial to ensuring the stable operation of the secondary controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a cascade control temperature control unit for precisely controlling the material temperature of a reaction kettle in the present utility model.

[0020] Figure 2 It is a front three-dimensional structural schematic diagram of the first-stage heat dissipation mechanism and the second-stage heat dissipation mechanism part of a cascade control temperature control unit for precisely controlling the material temperature of a reaction kettle in the present utility model.

[0021] Figure 3 It is a rear three-dimensional structural schematic diagram of the first-stage heat dissipation mechanism and the second-stage heat dissipation mechanism part of a cascade control temperature control unit for precisely controlling the material temperature of a reaction kettle in the present utility model.

[0022] Figure 4 It is a disassembled structural schematic diagram of the first-stage heat dissipation mechanism and the second-stage heat dissipation mechanism part of a cascade control temperature control unit for precisely controlling the material temperature of a reaction kettle in the present utility model.

[0023] Figure 5This is a partially sectional structural schematic diagram of the primary heat dissipation mechanism and the secondary heat dissipation mechanism of a cascade control temperature control unit for precisely controlling the material temperature in a reaction kettle of the present utility model.

[0024] Description of the drawings: 100, main body; 101, heat exchange module; 102, sub-controller; 200, primary heat dissipation mechanism; 201, mounting frame; 202, water tank; 203, water pump; 204, primary heat dissipation fins; 205, heat dissipation slats; 205a, serpentine channel; 206, secondary heat dissipation fins; 207, water pipe; 300, secondary heat dissipation mechanism; 301, cover body; 302, cooling fan; 303, flow guide cover; 304, connecting plate. Detailed implementation manners

[0025] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the drawings in the specification.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0028] Furthermore, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structures will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0029] Referring to Figures 1 - 5 , for an embodiment of the present utility model, a cascade control temperature control unit for precisely controlling the material temperature in a reaction kettle is provided, which includes:

[0030] A main body 100, which includes a heat exchange module 101 and a sub-controller 102 for controlling the operation of the heat exchange module 101. The sub-controller 102 is an explosion-proof PID controller, and the sub-controller 102 is externally connected to a main controller for monitoring the material temperature in the reaction kettle;

[0031] The first-level heat dissipation mechanism 200 includes an installation frame 201. The installation frame 201 is fixedly connected to the heat exchange module 101. A water tank 202 is fixedly connected to the front side of the installation frame 201. A water pump 203 is fixedly connected to the inner side of the water tank 202. A number of groups of first-level heat dissipation fins 204 are fixedly connected to the rear side of the water tank 202. A number of groups of first-level heat dissipation fins 204 all penetrate through the water tank 202. A heat dissipation strip 205 is also fixedly connected to the front side of the installation frame 201. The secondary controller 102 is detachably connected to the front side of the heat dissipation strip 205. A number of groups of second-level heat dissipation fins 206 are fixedly connected to the rear side of the heat dissipation strip 205. A serpentine channel 205a is formed inside the heat dissipation strip 205. Both ends of the serpentine channel 205a are fixedly connected and communicated with a water pipe 207. One end of one group of water pipes 207 away from the heat dissipation strip 205 is fixedly connected and communicated with the water tank 202. The other end of the other group of water pipes 207 away from the heat dissipation strip 205 penetrates through the water tank 202 and is fixedly connected to the water outlet of the water pump 203. The water tank 202 is filled with a water cooling liquid;

[0032] The second-level heat dissipation mechanism 300 is fixedly connected to the installation frame 201 and is used for air-cooling the first-level heat dissipation mechanism 200 and the secondary controller 102. The second-level heat dissipation mechanism 300 includes a housing 301, a heat dissipation fan 302 and a flow guide cover 303. The housing 301 is fixedly connected to the rear side of the installation frame 201. Two installation openings are symmetrically formed on the rear side of the heat dissipation fan 302. There are two groups of heat dissipation fans 302, and the two groups of heat dissipation fans 302 are respectively fixedly connected to the inner sides of the two installation openings. The flow guide cover 303 is arranged on the front side of the installation frame 201 and is located between the water tank 202 and the heat dissipation strip 205. The rear side of the flow guide cover 303 is open on the side close to the secondary controller 102. Connecting plates 304 are fixedly connected to both the upper and lower sides of the flow guide cover 303, and the two groups of connecting plates 304 are both fixedly connected to the installation frame 201.

[0033] Among them, one group of heat dissipation fans 302 is positioned opposite to a number of groups of first-level heat dissipation fins 204, and the other group of heat dissipation fans 302 is opposite to a number of groups of second-level heat dissipation fins 206. A number of groups of first-level heat dissipation fins 204 are arranged at equal intervals, and a number of groups of second-level heat dissipation fins 206 are arranged at equal intervals, which is beneficial to ensuring the heat dissipation effect.

[0034] In addition, the water tank 202, the first-level heat dissipation fins 204, the heat dissipation strip 205 and the second-level heat dissipation fins 206 are all made of aluminum alloy material. The aluminum alloy material has strong heat conduction ability. The heat dissipation strip 205 and the second-level heat dissipation fins 206 are integrally formed. The integral formation is beneficial to ensuring the heat conduction performance.

[0035] It should be noted that there are four groups of outward-extending protrusions on the rear side of the secondary controller 102. Slots are provided at positions of the four groups of protrusions facing the heat dissipation slats 205. Screw holes are provided at positions of the heat dissipation slats 205 facing the four groups of slots and are fitted with screws. The four screws respectively pass through the four groups of slots and are then screwed into the corresponding screw holes. The secondary controller 102 is detachably connected to the heat dissipation slats 205 through the four screws.

[0036] Working principle: When the water pump 203 operates, the water-cooling liquid circulates between the water tank 202 and the heat dissipation slats 205. The water-cooling liquid takes away the heat of the heat dissipation slats 205 during the flowing process, cools down the heat dissipation slats 205, and the heat dissipation slats 205 dissipate heat from the secondary controller 102.

[0037] As Figure 2 , 3 and shown in FIG. 4, when the two groups of cooling fans 302 operate, the air flow first enters the inner side of the mounting frame 201 through the two groups of cooling fans 302, and then flows out between the water tank 202 and the heat dissipation slats 205 after passing through several groups of primary heat dissipation fins 204 and several groups of secondary heat dissipation fins 206. Under the guiding action of the guiding cover 303, the air flow blows towards the secondary controller 102. The several groups of secondary heat dissipation fins 206 increase the heat dissipation area of the heat dissipation slats 205, and the several groups of primary heat dissipation fins 204 increase the heat dissipation area of the water tank 202. The air flow dissipates heat from the water tank 202, the heat dissipation slats 205 and 105 during the flowing process.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A cascade control temperature control unit for precisely controlling the material temperature in a reaction kettle, characterized in that, Comprising: A main body (100) including a heat exchange module (101) and a secondary controller (102) for controlling the operation of the heat exchange module (101). The secondary controller (102) is an explosion-proof PID controller, and the secondary controller (102) is externally connected to a main controller for monitoring the temperature of the material in the reaction kettle; A primary heat dissipation mechanism (200) including a mounting frame (201). The mounting frame (201) is fixedly connected to the heat exchange module (101). A water tank (202) is fixedly connected to the front side of the mounting frame (201). A water pump (203) is fixedly connected to the inner side of the water tank (202). A number of groups of primary heat dissipation fins (204) are fixedly connected to the rear side of the water tank (202). A number of groups of the primary heat dissipation fins (204) all penetrate through the water tank (202). A heat dissipation slat (205) is also fixedly connected to the front side of the mounting frame (201). The secondary controller (102) is detachably connected to the front side of the heat dissipation slat (205). A number of groups of secondary heat dissipation fins (206) are fixedly connected to the rear side of the heat dissipation slat (205). A serpentine channel (205a) is formed inside the heat dissipation slat (205). Both ends of the serpentine channel (205a) are fixedly communicated with a water pipe (207). One end of one of the water pipes (207) away from the heat dissipation slat (205) is fixedly communicated with the water tank (202), and the other end of the other water pipe (207) away from the heat dissipation slat (205) penetrates through the water tank (202) and is fixedly communicated with the water outlet of the water pump (203). The water tank (202) is filled with a water cooling liquid; A secondary heat dissipation mechanism (300) fixedly connected to the mounting frame (201) for air-cooling the primary heat dissipation mechanism (200) and the secondary controller (102).

2. The cascade control temperature control unit for precisely controlling the material temperature of a reactor, characterized in that: The secondary heat dissipation mechanism (300) includes a cover body (301), a heat dissipation fan (302) and a guide cover (303). The cover body (301) is fixedly connected to the rear side of the mounting frame (201). Two mounting openings are symmetrically formed on the rear side of the heat dissipation fan (302). Two heat dissipation fans (302) are provided, and the two heat dissipation fans (302) are respectively fixedly connected to the inner sides of the two mounting openings. The guide cover (303) is arranged on the front side of the mounting frame (201) and is located between the water tank (202) and the heat dissipation slat (205). The rear side of the guide cover (303) is open on the side close to the secondary controller (102). Two connecting plates (304) are fixedly connected to both the upper and lower sides of the guide cover (303), and the two connecting plates (304) are both fixedly connected to the mounting frame (201).

3. The cascade control temperature control unit for precisely controlling the material temperature of the reactor according to claim 2, characterized in that: One of the heat dissipation fans (302) is positioned opposite to a number of groups of primary heat dissipation fins (204), and the other heat dissipation fan (302) is opposite to a number of groups of secondary heat dissipation fins (206).

4. A cascade control temperature control unit for precisely controlling the temperature of the materials in a reactor, characterized in that: A number of groups of the primary heat dissipation fins (204) are arranged at equal intervals, and a number of groups of the secondary heat dissipation fins (206) are arranged at equal intervals.

5. A cascade control temperature control unit for precisely controlling the temperature of the materials in a reactor, characterized in that: The water tank (202), the primary heat dissipation fins (204), the heat dissipation slats (205) and the secondary heat dissipation fins (206) are all made of aluminum alloy material, and the heat dissipation slats (205) and the secondary heat dissipation fins (206) are integrally formed.

6. The cascade control temperature control unit for precisely controlling the material temperature of a reaction kettle according to claim 1, characterized in that: Four groups of outwardly extending protrusions are provided at the rear side of the sub-controller (102). Slots are formed at positions of the four groups of protrusions facing the heat dissipation slats (205). Screw holes are formed at positions of the heat dissipation slats (205) facing the four groups of slots and are fitted with screws. The four screws respectively pass through the four slots and are screwed into the corresponding screw holes. The sub-controller (102) is detachably connected to the heat dissipation slats (205) through the four screws.

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