Reaction kettle system capable of automatically switching heating and cooling

Abstract

The utility model provides a reaction kettle system capable of automatically switching heating and cooling, which comprises a reaction kettle, a jacket, a heating and cooling pipeline, a first pressure transmitter, an air inlet valve and a regulating valve, the jacket is wrapped on the outer side of the reaction kettle, the heating and cooling pipeline is communicated with the inside of the jacket, the first pressure transmitter is communicated with the inside of the jacket, and the air inlet valve is communicated with the regulating valve. The air inlet pipe is communicated with the top of the jacket, the air inlet valve is arranged on the air inlet pipe, and the adjusting valves are arranged on the heating and cooling pipelines; and the first pressure transmitter is interlocked with the air inlet valve. According to the utility model, free switching of various heat exchange media in the jacket is realized, and human error operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial production, in particular to a reactor system with automatic temperature increase and decrease switching. Background Art

[0002] A reactor is a crystallization device that requires a cooling medium to rapidly cool the reactor after the materials are mixed and reacted. During this process, steam is introduced to raise the temperature to 100°C for concentration. After concentration is complete, different cooling media are introduced into the reactor jacket to cool the reactor. Currently, manual switching between the steam in the reactor and the different cooling media on the jacket is performed through various control valves, which carries the risk of human error and can affect the quality of the reactor crystallization. Utility Model Content

[0003] In order to solve the above problems in the prior art, the utility model provides a reactor system with automatic switching of temperature rise and fall, which realizes automatic switching of multiple heat exchange media and avoids human error in operation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, the present invention provides a reactor system with automatic temperature switching, comprising a reactor, a jacket, a temperature-control pipeline, a first pressure transmitter, an air inlet valve, and a regulating valve, wherein the jacket is wrapped around the outside of the reactor, the temperature-control pipeline is connected to the interior of the jacket, the first pressure transmitter is connected to the interior of the jacket, the air inlet pipe is connected to the top of the jacket, the air inlet valve is provided on the air inlet pipe, and the regulating valve is provided on each temperature-control pipeline;

[0006] The first pressure transmitter is interlocked with the intake valve.

[0007] The beneficial effect of the present invention is that when the heat exchange media of various heating and cooling pipelines enter and exit the jacket, the compressed air introduced through the air inlet pipe will discharge the previous heat exchange medium, and the pressure in the jacket will be monitored in real time by the first pressure transmitter to detect whether it has been emptied, so that the valve of another heat exchange medium can be opened, thereby realizing the free switching of multiple heat exchange media in the jacket and avoiding human error.

[0008] Optionally, the heating and cooling pipeline includes a steam pipeline, a circulating water inlet pipe, a circulating water return pipe, a low-temperature water inlet pipe and a low-temperature water return pipe, and the regulating valve includes a steam valve, a circulating water inlet valve, a circulating water return valve, a low-temperature water inlet valve and a low-temperature water return valve;

[0009] The steam valve is arranged on the steam pipeline, the circulating water inlet valve is arranged on the circulating water inlet pipe, the circulating water return valve is arranged on the circulating water return pipe, the low-temperature water inlet valve is arranged on the low-temperature water inlet pipe, and the low-temperature water return valve is arranged on the low-temperature water return pipe.

[0010] Optionally, the circulating water return pipe and the circulating water return valve are provided in two sets, wherein one set of circulating water return pipes is provided at the bottom of the jacket, and the other set of circulating water return pipes is provided at the top of the jacket;

[0011] The low-temperature water return pipe and the low-temperature water return valve are provided in two sets, wherein the low-temperature water return pipe of one set is provided at the bottom of the jacket, and the low-temperature water return pipe of the other set is provided at the top of the jacket.

[0012] Optionally, the low-temperature water inlet pipe is a 7° inlet pipe, and the low-temperature water return pipe is a 7° return pipe.

[0013] Optionally, it further comprises an air outlet pipe and an air outlet valve, wherein the air outlet pipe is arranged at the bottom of the jacket, and the air outlet valve is arranged on the air outlet pipe.

[0014] Optionally, a second pressure transmitter and a temperature transmitter are further included, and the second pressure transmitter and the temperature transmitter are both arranged on the top of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a reactor system with automatic temperature switching for heating and cooling according to an embodiment of the present invention;

[0016] Description of reference numerals:

[0017] 1. Reactor; 2. Jacket; 3. First pressure transmitter; 4. Air inlet valve; 5. Steam valve; 6. Circulating water inlet valve; 7. First circulating water return valve; 8. Second circulating water return valve; 9. Low-temperature water inlet valve; 10. First low-temperature water return valve; 11. Second low-temperature water return valve; 12. Air outlet valve; 13. Second pressure transmitter; 14. Temperature transmitter. DETAILED DESCRIPTION

[0018] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0019] Example 1

[0020] In order to facilitate understanding of the present invention, Figure 1 The PID symbols in are as follows:

[0021] (1) CWR: circulating water return, CWS: circulating water inlet.

[0022] (2) PISA: Pressure display interlock, PG: pressure gauge, the two together form a pressure transmitter.

[0023] (3) N2: nitrogen; VE: vacuum exhaust gas; VT: vent;

[0024] (4) TISA: Temperature display interlock, TG: Thermometer, the two together form a temperature transmitter.

[0025] (5) AI: Compressed air.

[0026] (6)LS: Steam.

[0027] (7) PT: Pressure transmitter.

[0028] (8)SC: frequency control.

[0029] Please refer to Figure 1 The present embodiment provides a reactor system with automatic temperature switching, including a reactor 1, a jacket 2, a temperature control pipeline, an air outlet pipe, a first pressure transmitter 3, an air inlet valve 4, an air outlet valve 12 and a regulating valve. The jacket 2 is wrapped around the outside of the reactor 1, and the temperature control pipeline is connected to the inside of the jacket 2.

[0030] In this embodiment, the first pressure transmitter 3 is connected to the interior of the jacket 2, the air inlet pipe is connected to the top of the jacket 2, the air inlet valve 4 is arranged on the air inlet pipe, and the first pressure transmitter 3 is interlocked with the air inlet valve 4; the regulating valve is arranged on each temperature rising and falling pipeline; the air outlet pipe is arranged at the bottom of the jacket 2, and the air outlet valve 12 is arranged on the air outlet pipe.

[0031] Specifically, the heating and cooling pipeline includes a steam pipeline, a circulating water inlet pipe, a circulating water return pipe, a low-temperature water inlet pipe and a low-temperature water return pipe, and the regulating valve includes a steam valve 5, a circulating water inlet valve 6, a circulating water return valve, a low-temperature water inlet valve 9 and a low-temperature water return valve; the steam valve 5 is arranged on the steam pipeline, the circulating water inlet valve 6 is arranged on the circulating water inlet pipe, the circulating water return valve is arranged on the circulating water return pipe, the low-temperature water inlet valve 9 is arranged on the low-temperature water inlet pipe, and the low-temperature water return valve is arranged on the low-temperature water return pipe.

[0032] Among them, there are two sets of circulating water return pipes and circulating water return valves, one set of circulating water return pipes is set at the bottom of the jacket 2, and the other set of circulating water return pipes is set at the top of the jacket 2, one set is used for circulation, and the other set is used for emptying, so the corresponding low-temperature water return valve includes. Similarly, there are two sets of low-temperature water return pipes and low-temperature water return valves, one set of low-temperature water return pipes is set at the bottom of the jacket 2, and the other set of low-temperature water return pipes is set at the top of the jacket 2, one set is used for circulation, and the other set is used for emptying.

[0033] In this embodiment, the low-temperature water inlet pipe is a 7° inlet pipe, and the low-temperature water return pipe is a 7° return pipe.

[0034] Reference Figure 1 It can be seen that the top of the reactor 1 is provided with a second pressure transmitter 13, a temperature transmitter 14, and various gas inlet pipelines and corresponding valves, such as nitrogen, vacuum exhaust gas, and air. The above settings do not involve the improvement part of this application, and can refer to the existing design, so they will not be elaborated.

[0035] In this embodiment, the pipelines involved are not shown by numbers, but can be found by referring to the locations of the valves.

[0036] Therefore, the implementation process of the present invention is described as follows:

[0037] 1. Feeding

[0038] Reactor 1 is fed.

[0039] 2. Heating

[0040] After the feeding is completed, steam is used to heat the mixture to 100°C for concentration: first, open the outlet valve 12 and the valve on the steam pipeline, and adjust the opening of the steam valve 5 to allow steam to enter the jacket 2 to heat the reactor 1 to 100°C. When the heating is completed, the target solvent is evaporated.

[0041] 3. Circulating water cooling

[0042] After the concentration is completed, switch to using circulating water to cool down to 75°: close the steam valve 5 and the air outlet valve 12; open the first circulating water return valve 7, and adjust the opening of the circulating water inlet valve 6 to perform initial cooling of the reactor 1 to 75°.

[0043] 4. Air compressor jacket 2 circulating water

[0044] The circulating water in the jacket 2 is drained by compressed air and interlock control: first close the circulating water inlet valve 6 and the first circulating water return valve 7, open the second circulating water return valve 8, open the air inlet valve 4, and use compressed air to press the circulating water in the jacket 2 to the circulating water return pipe. When the first pressure transmitter 3 interlocked with the jacket 2 and the air inlet valve 4 is zero, the water pressure is completed.

[0045] 5.7° water cooling

[0046] Then switch to using 7° water for cooling, reach the temperature, and discharge the material for centrifugation: first close the second circulating water return valve 8 and the air inlet valve 4, open the first low-temperature water return valve 10, and adjust the low-temperature water inlet valve 9 to deeply cool the reactor 1 to 30°, and then discharge the material for centrifugation.

[0047] 6. Air compressor jacket 27° water

[0048] The 7° water in the jacket 2 is drained by compressed air and interlock control: first close the first low-temperature water return valve 10 and the low-temperature water inlet valve 9, open the second low-temperature water return valve 11, open the air inlet valve 4, and use compressed air to pressurize the 7° water in the jacket 2 to the 7° water return pipe. When the first pressure transmitter 3 interlocked with the jacket 2 and the air inlet valve 4 is zero, the water pressure is completed.

[0049] Therefore, this embodiment satisfies the requirement of free switching among the three heat exchange media of steam, circulating water and 7° water, ensuring the smooth completion of the water intake process and avoiding human error.

[0050] It should be noted that the above interlocking and valve adjustment can be realized based on the existing control logic. Therefore, the above control logic does not involve any improvement in the method.

[0051] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0052] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0053] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0054] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A reactor system with automatic temperature switching, characterized in that: The apparatus comprises a reactor, a jacket, an air inlet pipe, a temperature-control pipeline, a first pressure transmitter, an air inlet valve, and a regulating valve. The jacket is wrapped around the outside of the reactor, the temperature-control pipeline is connected to the interior of the jacket, the first pressure transmitter is connected to the interior of the jacket, the air inlet pipe is connected to the top of the jacket, the air inlet valve is arranged on the air inlet pipe, and the regulating valve is arranged on each temperature-control pipeline. The first pressure transmitter is interlocked with the intake valve.

2. The reactor system with automatic temperature switching according to claim 1, characterized in that: The heating and cooling pipeline includes a steam pipeline, a circulating water inlet pipe, a circulating water return pipe, a low-temperature water inlet pipe and a low-temperature water return pipe, and the regulating valve includes a steam valve, a circulating water inlet valve, a circulating water return valve, a low-temperature water inlet valve and a low-temperature water return valve; The steam valve is arranged on the steam pipeline, the circulating water inlet valve is arranged on the circulating water inlet pipe, the circulating water return valve is arranged on the circulating water return pipe, the low-temperature water inlet valve is arranged on the low-temperature water inlet pipe, and the low-temperature water return valve is arranged on the low-temperature water return pipe.

3. The reactor system with automatic temperature switching according to claim 2, characterized in that: The circulating water return pipe and the circulating water return valve are provided in two sets, wherein the circulating water return pipe of one set is provided at the bottom of the jacket, and the circulating water return pipe of the other set is provided at the top of the jacket; The low-temperature water return pipe and the low-temperature water return valve are provided in two sets, wherein the low-temperature water return pipe of one set is provided at the bottom of the jacket, and the low-temperature water return pipe of the other set is provided at the top of the jacket.

4. The reactor system with automatic temperature switching according to claim 3, characterized in that: The low-temperature water inlet pipe is a 7° water inlet pipe, and the low-temperature water return pipe is a 7° water return pipe.

5. The reactor system with automatic temperature switching according to claim 1, characterized in that: It also includes an air outlet pipe and an air outlet valve. The air outlet pipe is arranged at the bottom of the jacket, and the air outlet valve is arranged on the air outlet pipe.

6. The reactor system with automatic temperature switching according to claim 1, characterized in that: It also includes a second pressure transmitter and a temperature transmitter, and the second pressure transmitter and the temperature transmitter are both arranged on the top of the reactor.

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