Reaction kettle temperature control system
By designing a reactor temperature control system, and using a cooling circulation loop and temperature sensors to control the temperature of the heat transfer oil, the problem of high production costs caused by different product reaction temperature requirements was solved, and the heat transfer oil system was made flexible and cost-effective.
Patent Information
- Application Number
- CN202422880022.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In the existing technology, since different products have different requirements for reaction temperature, thermal oil furnaces or steam boilers need to be configured separately to heat the reaction vessel, resulting in high production costs.
Design a reactor temperature control system, including a cooling circulation loop, a heat transfer oil supply pipe, and a reactor heat exchanger. By connecting and disconnecting the heat transfer oil supply pipe from the cooling circulation loop, combined with a temperature sensor and a control valve, the temperature of the heat transfer oil can be precisely adjusted to meet the reaction temperature requirements of different products.
A single heat transfer oil system can adapt to the reaction temperature requirements of different products, reducing production costs and avoiding the waste of repeatedly configuring heat transfer oil furnaces or steam boilers.
Smart Images
Figure CN223556000U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of reaction kettle temperature control, specifically relates to a reaction kettle temperature control system. BACKGROUND
[0002] Reaction kettle is widely used in petroleum, chemical industry, rubber, pesticide, dye, medicine and food fields, is used to complete vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and other process pressure vessel. When utilizing reaction kettle to carry out the reaction of various products, because various products are different in the requirement of reaction temperature, in the prior art, corresponding heat conducting oil furnace or steam boiler is configured respectively to heat reaction kettle, thus, production cost is higher. SUMMARY
[0003] In view of the above-mentioned deficiencies or defects in the prior art, the utility model provides a reaction kettle temperature control system, which aims to solve the technical problem of higher production cost caused by the need to configure corresponding heat conducting oil furnace or steam boiler to heat reaction kettle due to different requirements of various products on reaction temperature when utilizing reaction kettle to carry out the reaction of various products.
[0004] To achieve the above object, the utility model provides a reaction kettle temperature control system, comprising:
[0005] Cooling circulation loop, comprising heat conducting oil cooler and circulating pump;
[0006] Heat conducting oil supply pipe is used for being connected with heat conducting oil system, and selectively communicating or disconnecting with cooling circulation loop;
[0007] Reaction kettle heat exchanger is used for heat exchange with reaction kettle, and the oil inlet end and oil outlet end of reaction kettle heat exchanger are connected with cooling circulation loop through oil inlet pipe and oil outlet pipe respectively, and the oil inlet pipe and oil outlet pipe can be selectively conducted or cut off.
[0008] Optionally, the heat conducting oil cooler is a shell-and-tube cooler.
[0009] Optionally, the cooling circulation loop further comprises a check valve.
[0010] Optionally, the reaction kettle temperature control system further comprises a first control valve, and the heat conducting oil supply pipe is connected with the cooling circulation loop through the first control valve.
[0011] Optionally, the reaction kettle temperature control system comprises a first control unit and a loop temperature sensor, the loop temperature sensor is arranged on the cooling circulation loop, and the first control unit is communicatively connected with the loop temperature sensor and the first control valve respectively.
[0012] Optionally, the reaction kettle temperature control system further comprises a heat conducting oil return pipe connected with the heat conducting oil system, the heat conducting oil return pipe is connected with the cooling circulation loop, the first control valve is a three-way valve, an oil inlet end of the first control valve is connected with the heat conducting oil supply pipe, and two oil outlet ends of the first control valve are connected with the cooling circulation loop and the heat conducting oil return pipe respectively.
[0013] Optionally, a second control valve is connected between the heat conducting oil return pipe and the cooling circulation loop.
[0014] Optionally, first and second stop valves are arranged on the heat conducting oil return pipe and the heat conducting oil supply pipe respectively.
[0015] Optionally, the reaction kettle temperature control system further comprises third and fourth control valves, the third and fourth control valves are arranged on the oil inlet pipe and the oil outlet pipe respectively.
[0016] Optionally, the reaction kettle temperature control system further comprises a loop temperature sensor, a reaction kettle temperature sensor and a second control unit, the loop temperature sensor is arranged on the cooling circulation loop, the reaction kettle temperature sensor is arranged in the reaction kettle, and the second control unit is in communication connection with the loop temperature sensor, the reaction kettle temperature sensor, the third control valve and the fourth control valve respectively.
[0017] Through the above technical scheme, the high-temperature heat conducting oil of the heat conducting oil system is introduced into the cooling circulation loop through the heat conducting oil supply pipe, the high-temperature heat conducting oil can circulate in the cooling circulation loop to cool and reduce the temperature, and when the heat conducting oil is reduced to a suitable temperature, the heat conducting oil can be circulated into the reaction kettle heat exchanger through the oil inlet pipe and the oil outlet pipe to exchange heat with the reaction kettle, so that the high-temperature heat conducting oil can be adjusted to a suitable temperature through the cooling circulation loop according to different reaction temperature requirements of products, that is, the temperature adjustment of the heat conducting oil by the reaction kettle temperature control system can make one heat conducting oil system applicable to heat supply for different products, and it is not necessary to configure corresponding heat conducting oil furnaces or steam boilers according to different products, thereby effectively reducing production cost.
[0018] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:
[0020] Figure 1The structure diagram of the reaction kettle temperature control system in an embodiment of the utility model.
[0021] Mark explanation:
[0022] 1 heat conducting oil cooler 8 first control valve
[0023] 2 circulating pump 9 heat conducting oil return pipe
[0024] 3 heat conducting oil supply pipe 10 first stop valve
[0025] 4 reaction kettle heat exchanger 11 second stop valve
[0026] 5 oil inlet pipe 12 third control valve
[0027] 6 oil outlet pipe 13 fourth control valve
[0028] 7 check valve Specific embodiment
[0029] The specific embodiments described herein are intended to be illustrative only and are not intended to limit the scope of the utility model.
[0030] It should be noted that the embodiments and features in the embodiments in the utility model can be combined with each other without conflict.
[0031] In the utility model, the orientation words such as 'center', 'longitudinal', 'transverse', 'upper', 'lower', 'front','rear', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer' and the like indicate the orientation or position relationship generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the utility model; the orientation words 'inner' and 'outer' refer to the inner and outer of the contour of each component itself.
[0032] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0033] The utility model provides a reaction kettle temperature control system first.
[0034] In an embodiment, referring to the drawings, Figure 1 The reaction kettle temperature control system comprises:
[0035] The cooling circulating loop comprises a heat conducting oil cooler 1 and a circulating pump 2;
[0036] The heat conducting oil supply pipe 3 is used for connecting with the heat conducting oil system and selectively communicating with or disconnecting from the cooling circulation loop;
[0037] The reaction kettle heat exchanger 4 is used for heat exchange with the reaction kettle, and the oil inlet end and the oil outlet end of the reaction kettle heat exchanger 4 are connected with the cooling circulation loop through the oil inlet pipe 5 and the oil outlet pipe 6 respectively, and the oil inlet pipe 5 and the oil outlet pipe 6 can be selectively turned on or turned off.
[0038] In the embodiment, the high-temperature heat conducting oil in the heat conducting oil system is introduced into the cooling circulation loop through the heat conducting oil supply pipe 3, and the high-temperature heat conducting oil can circulate and flow in the cooling circulation loop to cool and lower the temperature. When the heat conducting oil is lowered to a suitable temperature, the heat conducting oil can be circulated into the reaction kettle heat exchanger through the oil inlet pipe 5 and the oil outlet pipe 6 to exchange heat with the reaction kettle. In this way, the high-temperature heat conducting oil can be adjusted to a suitable temperature through the cooling circulation loop according to the different reaction temperature requirements of the products, that is, the temperature adjustment of the heat conducting oil by the reaction kettle temperature control system of the embodiment can make one heat conducting oil system applicable to heat supply for different product reactions, and it is not necessary to configure corresponding heat conducting oil furnaces or steam boilers according to different products, thereby effectively reducing the production cost.
[0039] Specifically, the reaction kettle heat exchanger 4 can be a coil heat exchanger, which can be arranged around the outer wall of the reaction kettle to exchange heat with the reaction kettle.
[0040] In actual application, the heat conducting oil supply pipe 3 is connected or disconnected with the cooling circulation loop, and the oil inlet pipe 5 and the oil outlet pipe 6 are turned on or turned off according to the working requirements.
[0041] When it is necessary to heat the reaction of the reaction kettle, the high-temperature heat conducting oil is first introduced into the cooling circulation loop from the heat conducting oil system through the heat conducting oil supply pipe 3, then the heat conducting oil supply pipe 3 is disconnected from the cooling circulation loop, and the oil inlet pipe 5 and the oil outlet pipe 6 are turned off, so that the high-temperature heat conducting oil circulates and flows in the cooling circulation loop to cool to a preset temperature, and then the oil inlet pipe 5 and the oil outlet pipe 6 are turned on to introduce the cooled heat conducting oil into the reaction kettle heat exchanger 4 to exchange heat with the reaction kettle. For example, the temperature of the heat conducting oil in the heat conducting oil system is 250℃, and the reaction temperature requirement of the reaction kettle is 100℃, so the heat conducting oil introduced from the heat conducting oil system needs to be cooled to 120℃ in the cooling circulation loop before being introduced into the reaction kettle heat exchanger 4, so as to heat the reaction kettle through the reaction kettle heat exchanger 4, thereby making the reaction temperature of the reaction kettle reach 100℃.
[0042] In the process of heating the reaction of the reaction kettle, when the heat exchange heat conducting oil is lower than the preset temperature, the heat conducting oil supply pipe 3 can be communicated with the cooling circulation loop to supplement the oil heating, and when the heat exchange heat conducting oil is higher than the preset temperature, the heat conducting oil supply pipe 3 can be disconnected with the cooling circulation loop, so that the heat exchange heat conducting oil can be maintained at the preset temperature. For example, the reaction temperature requirement of the reaction kettle is 100℃, the heat conducting oil temperature can be maintained in the temperature range of 120℃±1℃ by repeatedly connecting and disconnecting the heat conducting oil supply pipe 3 and the cooling circulation loop.
[0043] When the reaction of the reaction kettle is an exothermic reaction, that is, when the reaction proceeds to a certain extent, a large amount of heat will be released, which is easy to cause material overflow, overflow or greater safety accidents. In this case, the reaction kettle does not need to be heated, and the heat conducting oil supply pipe 3 can be disconnected with the cooling circulation loop before the reaction kettle performs the exothermic reaction, the inlet pipe 5 and the outlet pipe 6 are both cut off, so that the heat conducting oil is continuously cooled in the cooling circulation loop. When the reaction kettle starts to release heat, the inlet pipe 5 and the outlet pipe 6 are connected, so that the low-temperature heat conducting oil exchanges heat with the reaction kettle, thereby cooling the reaction kettle.
[0044] In an embodiment, the heat conducting oil cooler 1 is a shell and tube cooler.
[0045] Specifically, the heat conducting oil cooler 1 includes a heat conducting oil flow channel arranged on the cooling circulation loop and a cooling liquid flow channel for heat exchange with the heat conducting oil flow channel. The cooling liquid flow channel is arranged in the external cooling circulation loop, so that when the high-temperature heat conducting oil flows through the heat conducting oil flow channel, it exchanges heat with the cooling liquid flow channel to reduce its own temperature.
[0046] In an embodiment, the cooling circulation loop further includes a check valve 7.
[0047] By arranging the check valve 7, it can be ensured that the high-temperature heat conducting oil can circulate in the set direction, avoiding backflow.
[0048] Specifically, the heat conducting oil cooler 1, the circulating pump 2 and the check valve 7 are sequentially connected end to end through pipelines to form the cooling circulation loop.
[0049] In an embodiment, the reaction kettle temperature control system further includes a first control valve 8, and the heat conducting oil supply pipe 3 is connected with the cooling circulation loop through the first control valve 8. In this way, by controlling the first control valve 8, the heat conducting oil supply pipe 3 can be selectively communicated or disconnected with the cooling circulation loop.
[0050] In an embodiment, the reaction kettle temperature control system includes a first control unit and a loop temperature sensor, the loop temperature sensor is arranged on the cooling circulation loop, and the first control unit is communicatively connected with the loop temperature sensor and the first control valve 8 respectively.
[0051] In the embodiment, the first control unit can control the first control valve 8 according to the detection result of the loop temperature sensor, so as to realize accurate control of the selective communication or disconnection of the heat conducting oil supply pipe 3 and the cooling circulation loop, and improve the accuracy of temperature control.
[0052] Specifically, the first control valve 8 can be an electromagnetic valve or an electric valve, so as to be capable of receiving the control signal of the first control unit to switch the heat conducting oil supply pipe 3 between the communication and the disconnection with the cooling circulation loop.
[0053] In an embodiment, the reactor temperature control system further comprises a heat conducting oil return pipe 9 connected with the heat conducting oil system, the heat conducting oil return pipe 9 is connected with the cooling circulation loop, the first control valve 8 is a three-way valve, the oil inlet end of the first control valve 8 is connected with the heat conducting oil supply pipe 3, and the two oil outlet ends of the first control valve 8 are respectively connected with the cooling circulation loop and the heat conducting oil return pipe 9.
[0054] It can be understood that the selective communication of the two oil outlet ends through the oil inlet end of the first control valve 8 can realize the selective communication or disconnection of the heat conducting oil supply pipe 3 and the cooling circulation loop. When it is needed to increase the temperature of the heat conducting oil, the oil inlet end of the first control valve 8 is communicated with the oil outlet end connected with the cooling circulation loop, the heat conducting oil supply pipe 3 is communicated with the cooling circulation loop, so that the high-temperature heat conducting oil of the heat conducting system can flow into the cooling circulation loop through the heat conducting oil supply pipe 3, and the low-temperature heat conducting oil in the cooling circulation loop can flow back to the heat conducting oil system through the heat conducting oil return pipe 9.
[0055] When it is not needed to increase the temperature of the heat conducting oil, the oil inlet end of the first control valve 8 is communicated with the oil outlet end connected with the heat conducting oil return pipe 9, the heat conducting oil supply pipe 3 is communicated with the heat conducting oil return pipe 9, the high-temperature heat conducting oil of the heat conducting oil supply pipe 3 directly flows back to the heat conducting oil system from the heat conducting oil return pipe 9, and at this time, since the pressure of the heat conducting oil in the heat conducting oil return pipe 9 is greater than the pressure of the heat conducting oil in the cooling circulation loop, the heat conducting oil in the cooling circulation loop will not flow into the heat conducting oil return pipe 9.
[0056] In an embodiment, a second control valve (not shown in the figure) is connected between the heat conducting oil return pipe 9 and the cooling circulation loop. In this way, when it is not needed to increase the temperature of the heat conducting oil, the first control valve 8 is switched to communicate the oil inlet end with the oil outlet end connected with the heat conducting oil return pipe 9, and at the same time, the second control valve is closed, so as to further ensure that the heat conducting oil in the cooling circulation loop will not flow into the heat conducting oil return pipe 9 at this time.
[0057] Specifically, the second control valve can be an electromagnetic valve or an electric valve, and is in communication connection with the first control unit, so as to be capable of being opened and closed together with the first control valve.
[0058] In an embodiment, the heat conducting oil return pipe 9 and the heat conducting oil supply pipe 3 are respectively provided with a first stop valve 10 and a second stop valve 11.
[0059] In an embodiment, the reaction kettle temperature control system further comprises a third control valve 12 and a fourth control valve 13, which are respectively arranged on the oil inlet pipe 5 and the oil outlet pipe 6.
[0060] In an embodiment, the reaction kettle temperature control system further comprises a loop temperature sensor, a reaction kettle temperature sensor and a second control unit, the loop temperature sensor is arranged on the cooling circulation loop, the reaction kettle temperature sensor is arranged in the reaction kettle, and the second control unit is in communication connection with the loop temperature sensor, the reaction kettle temperature sensor, the third control valve 12 and the fourth control valve 13 respectively.
[0061] In the embodiment, the second control unit can control the third control valve 12 and the fourth control valve 13 according to the detection results of the loop temperature sensor and the reaction kettle temperature sensor, so as to realize accurate control of the on or off of the oil inlet pipe 5 and the oil outlet pipe 6.
[0062] Specifically, the third control valve 12 and the fourth control valve 13 can be solenoid valves or electric valves, so as to receive the control signal of the second control unit and realize the switching of the oil inlet pipe 5 and the oil outlet pipe 6 between on and off.
[0063] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0064] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0065] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.
[0066] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.
Claims
1. A temperature control system for a reaction vessel, characterized in that, The application relates to a reaction kettle temperature control system. The reaction kettle temperature control system comprises a cooling circulation loop, a heat conducting oil supply pipe, a reaction kettle heat exchanger and a heat conducting oil return pipe. The cooling circulation loop comprises a heat conducting oil cooler and a circulating pump. The heat conducting oil cooler is a shell-and-tube cooler.
2. The reactor temperature control system of claim 1, wherein, The cooling circulation loop further comprises a check valve.
3. The reactor temperature control system of claim 1, wherein, The reaction kettle temperature control system further comprises a first control valve.
4. The reactor temperature control system of claim 1, wherein, The reaction kettle temperature control system comprises a first control unit and a loop temperature sensor.
5. The reactor temperature control system of claim 4, wherein, The reaction kettle temperature control system further comprises a heat conducting oil return pipe.
6. The reactor temperature control system of claim 4, wherein, The first control valve is a three-way valve.
7. The reactor temperature control system of claim 6, wherein, The heat conducting oil return pipe and the cooling circulation loop are connected through a second control valve.
8. The reactor temperature control system of claim 6, wherein, The heat conducting oil return pipe and the heat conducting oil supply pipe are respectively provided with a first stop valve and a second stop valve.
9. The reactor temperature control system of claim 1, wherein, The reaction kettle temperature control system further comprises a third control valve and a fourth control valve.
10. The reactor temperature control system of claim 9, wherein, The reaction kettle temperature control system further comprises a loop temperature sensor, a reaction kettle temperature sensor and a second control unit. The loop temperature sensor is arranged on the cooling circulation loop. The reaction kettle temperature sensor is arranged in the reaction kettle. The second control unit is respectively connected with the loop temperature sensor, the reaction kettle temperature sensor, the third control valve and the fourth control valve.