Multifunctional automatic temperature control system

Abstract

The utility model provides a multifunctional automatic temperature control system, and belongs to the technical field of pharmaceutical chemical equipment. A multifunctional automatic temperature control system comprises an automatic control unit, a circulating temperature control pipeline, a refrigerant unit and a heating medium unit. The system can automatically control the temperature of the reaction kettle under the interaction of the refrigerant unit and the heating medium unit, and has multiple functions of heating, cooling and constant temperature control. When heating is needed, the refrigerant unit is closed, the heating medium unit is started, and high-temperature liquid or high-temperature steam heats the reaction kettle through the heating medium pipeline; when cooling is needed, the heating medium unit is closed, the refrigerant unit is started, and a low-temperature refrigerant or refrigeration water rapidly cools liquid through a refrigerant pipeline; when accurate temperature control is needed, under the combined action of the automatic control unit, the refrigerant and the heating medium, the temperature of the reaction kettle is automatically, finely and rapidly controlled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical and chemical industry equipment, and specifically relates to a multifunctional automatic temperature control system. BACKGROUND

[0002] The reaction kettle is widely used in the medical, food and chemical industry, and is a container for physical or chemical reaction. The structure and parameters of the container are designed to realize the heating, evaporation, cooling and low-speed mixing functions required by the process. The reaction kettle is widely used in petroleum, chemical industry, rubber, pesticide, dye, medicine and food to complete the process of vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization and condensation. For example, the reactor, reaction pot, decomposition pot and polymerization kettle are all pressure vessels. The materials are generally carbon manganese steel, stainless steel, zirconium, nickel-based (Hastelloy, Monel, Inconel) alloy and other composite materials.

[0003] The traditional temperature control method is to directly pass the coolant / heat medium into the jacket of the reaction kettle for heating or cooling. It is difficult to adapt to various working conditions, and the temperature control precision is low, the automation degree is low, the workers need to complete the operation on site, the labor environment is poor, the intensity is high, and it is not conducive to production. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of multifunctional automatic temperature control system, to realize the purposes of automatic temperature control, accurate and rapid temperature control to reaction kettle.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is to provide a kind of multifunctional automatic temperature control system including self-circulation temperature control pipeline, coolant unit and heat medium unit.

[0006] The circulation temperature control pipeline is communicated with the upper side wall of the reaction kettle at one end, and the other end of the circulation temperature control pipeline is communicated with the bottom of the reaction kettle, and a circulating pump is arranged on the circulation temperature control pipeline;

[0007] The coolant unit is communicated with the circulation temperature control pipeline at one end, and the coolant unit includes coolant supply pipeline, coolant return pipeline and coolant evacuation pipeline, the other end of the coolant supply pipeline and the coolant return pipeline is connected with plant coolant main pipe, and the other end of the coolant evacuation pipeline is communicated with the coolant return pipeline;

[0008] The heat medium unit is communicated with the circulation temperature control pipeline at one end, and the heat medium unit includes heat medium supply pipeline, heat medium return pipeline and heat medium temperature control pipeline, the other end of the heat medium supply pipeline and the heat medium return pipeline is communicated with heat medium main pipe, and the other end of the heat medium temperature control pipeline is communicated with the heat medium supply pipeline.

[0009] In a possible implementation, the heat medium supply pipeline is provided with a second automatic regulating valve, the heat medium temperature control pipeline is provided with a fifth automatic regulating valve, and the heat medium return pipeline is provided with a sixth automatic on-off valve.

[0010] In a possible implementation, the circulating pump is provided with a first automatic on-off valve and a second automatic on-off valve in front and back directions.

[0011] In a possible implementation, the refrigerant supply pipeline is provided with a first automatic regulating valve, the refrigerant return pipeline is provided with a third automatic on-off valve, and the refrigerant exhaust pipeline is provided with a fourth automatic on-off valve.

[0012] In a possible implementation, the circulating temperature control pipeline is further provided with a compensation unit, the compensation unit comprises an expansion tank, an expansion pipeline and a liquid supplement pipeline. One end of the expansion pipeline is in communication with the circulating temperature control pipeline, the other end of the expansion pipeline is in communication with the expansion tank, and the expansion pipeline is provided with an eighth automatic on-off valve; one end of the liquid supplement pipeline is in communication with the expansion tank, and the other end of the liquid supplement pipeline is in communication with a factory production water main pipeline, and the liquid supplement pipeline is provided with a seventh automatic on-off valve.

[0013] In a possible implementation, the multifunctional automatic temperature control system further comprises an automatic control unit, and the automatic control unit is signal connected with the seventh automatic on-off valve, the eighth automatic on-off valve, the first automatic on-off valve, the second automatic on-off valve, the first automatic regulating valve, the third automatic on-off valve, the fourth automatic on-off valve, the second automatic regulating valve, the fifth automatic regulating valve and the sixth automatic on-off valve.

[0014] In a possible implementation, the bottom of the expansion tank is provided with a cleaning and sewage discharge port, and the heat medium supply pipeline is provided with a branch heat medium temperature control pipeline.

[0015] In a possible implementation, the multifunctional automatic temperature control system is further provided with an overflow pipeline, and one end of the overflow pipeline is in communication with the expansion tank.

[0016] In a possible implementation, the expansion tank is provided with a liquid level meter.

[0017] In a possible implementation, the multifunctional automatic temperature control system further comprises a compressed air pipeline and a compression pump, an air outlet of the compressed air pipeline is in communication with the circulating temperature control pipeline, the compression pump is arranged on the compressed air pipeline, and an air outlet of the compression pump is in communication with an air inlet of the compressed air pipeline.

[0018] The compression pump is signal connected with the automatic control unit.

[0019] In the embodiment of the present application, the multifunctional automatic temperature control system comprises an automatic control unit, a circulating temperature control pipeline, a refrigerant unit and a heat medium unit. The temperature of the reaction kettle is controlled by the automatic control unit under the interaction of the refrigerant unit and the heat medium unit. When heating is needed, the refrigerant unit is closed, the compressed air purge switch is closed, the heat medium unit is started, and high-temperature liquid or high-temperature steam is used to heat the equipment through the heat medium pipeline. When liquid cooling is needed, the heat medium unit is closed, the compressed air purge is closed, and the refrigerant unit is started. Low-temperature refrigerant or refrigeration water is used to cool the liquid through the refrigerant pipeline. When precise temperature control is needed, the heating temperature of the reaction kettle is automatically and finely controlled by the automatic control unit under the joint action of the refrigerant unit and the heat medium unit, so as to realize the purpose of automatic and precise temperature control of the reaction kettle. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic diagram of a multifunctional automatic temperature control system according to the present application;

[0021] Mark explanation:

[0022] 1, reaction kettle;

[0023] 2, circulating temperature control pipeline; 22, circulating pump; 21, first automatic on-off valve; 23, second automatic on-off valve; 311, first automatic regulating valve; 322, third automatic on-off valve; 331, fourth automatic on-off valve;

[0024] 411, second automatic regulating valve; 431, fifth automatic regulating valve; 421, sixth automatic on-off valve; 512, eighth automatic on-off valve; 541, seventh automatic on-off valve;

[0025] 3, refrigerant unit; 31, refrigerant supply pipeline; 32, refrigerant return pipeline; 33, refrigerant exhaust pipeline;

[0026] 4, heat medium unit; 41, heat medium supply pipeline; 42, heat medium return pipeline; 43, heat medium temperature control pipeline;

[0027] 51, expansion tank; 52, expansion pipeline; 54, liquid supplement pipeline; 55, overflow pipeline; 511, cleaning and sewage discharge port; 512, liquid level meter; 61, compressed air pipeline; 62, compression pump. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0029] It should be further noted that the drawings and embodiments of the present application are mainly used to describe the concept of the present application, and on the basis of the concept, some connection relationships, position relationships, power mechanisms, power supply systems, hydraulic systems and control systems, and specific forms and settings may not be completely described, but under the premise that the person skilled in the art understands the concept of the present application, the person skilled in the art can realize the above-mentioned specific forms and settings in a well-known manner.

[0030] When an element is referred to as being "fixed" or "attached" to another element, it can be directly on the other element or indirectly on the other element, with one or more intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or indirectly connected or coupled to the other element, with one or more intervening elements.

[0031] The terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] The terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, and the meaning of "several" is one or more, unless otherwise specifically limited.

[0033] Please refer to Figure 1 , now a multifunctional automatic temperature control system will be described.

[0034] The multifunctional automatic temperature control system comprises a circulating temperature control pipeline 2, a refrigerant unit 3 and a heat medium unit 4. One end of the circulating temperature control pipeline 2 is communicated with the upper side wall of the reactor 1, the other end of the circulating temperature control pipeline 2 is communicated with the bottom of the reactor 1, and a circulating pump 22 is arranged on the circulating temperature control pipeline 2; one end of the refrigerant unit 3 is communicated with the circulating temperature control pipeline 2, the refrigerant unit 3 comprises a refrigerant supply pipeline 31, a refrigerant return pipeline 32 and a refrigerant emptying pipeline 33, the other end of the refrigerant supply pipeline 31 and the refrigerant return pipeline 32 are connected with a plant refrigerant main pipe, and the other end of the refrigerant emptying pipeline 33 is communicated with the refrigerant return pipeline 32; one end of the heat medium unit 4 is communicated with the circulating temperature control pipeline 2, the heat medium unit 4 comprises a heat medium supply pipeline 41, a heat medium return pipeline 42 and a heat medium temperature control pipeline 43, the other end of the heat medium pipeline is communicated with a heat medium main pipe, and the other end of the heat medium temperature control pipeline 43 is communicated with the heat medium supply pipeline 41.

[0035] Compared with the prior art, the multifunctional automatic temperature control system comprises a circulating temperature control pipeline 2, a refrigerant unit 3 and a heat medium unit 4. The system can automatically control the temperature of the reactor 1 under the interaction of the refrigerant unit 3 and the heat medium unit 4, and has the functions of heating, cooling and constant temperature control. When the reactor 1 needs to be heated, the refrigerant unit 3 is closed and the heat medium unit 4 is started, and high-temperature liquid or high-temperature steam heats the reactor 1 through the heat medium pipeline; when the reactor 1 needs to be cooled, the heat medium unit 4 is closed and the refrigerant unit 3 is started, and low-temperature refrigerant or refrigeration water rapidly cools the liquid through the refrigerant pipeline; under the joint action of the refrigerant and the heat medium, the temperature of the reactor 1 is automatically and finely controlled.

[0036] Specifically, in the above embodiment, the medium in the refrigerant pipeline is refrigeration water, and the medium in the heat medium pipeline is high-temperature steam.

[0037] The refrigerant pipeline and the heat medium pipeline are each provided with a manual shut-off valve.

[0038] Specifically, in the above embodiment, the first automatic on-off valve 21 and the second automatic on-off valve 23 are arranged in the front-rear direction of the circulating pump 22. The first automatic regulating valve 311 is arranged on the refrigerant supply pipeline 31, the third automatic on-off valve 322 is arranged on the refrigerant return pipeline 32, and the fourth automatic on-off valve 331 is arranged on the refrigerant emptying pipeline 33. The second automatic regulating valve 411 is arranged on the heat medium supply pipeline 41, the fifth automatic regulating valve 431 is arranged on the heat medium temperature control pipeline 43, and the sixth automatic on-off valve 421 is arranged on the heat medium return pipeline 42.

[0039] Since the medium in the circulating temperature control pipeline 2 will be consumed in the use process, and different temperatures result in different pressures in the circulating temperature control pipeline 2, a compensation unit is arranged to compensate and adjust the circulating control pipeline, thereby improving the stability in the operation process of the system.

[0040] Further, the circulating temperature control pipeline 2 is also provided with a compensation unit, which comprises an expansion tank 51, an expansion pipeline 52 and a liquid supplement pipeline 54. One end of the expansion pipeline 52 is communicated with the circulating temperature control pipeline 2, one end of the expansion pipeline 52 is communicated with the expansion tank 51, and the expansion pipeline 52 is provided with an eighth automatic switch valve 512; one end of the liquid supplement pipeline 54 is communicated with the expansion tank 51, and the other end of the liquid supplement pipeline 54 is communicated with a total water pipeline of a factory area, and the liquid supplement pipeline 54 is provided with a seventh automatic switch valve 541.

[0041] On the basis of the above embodiment, the system further comprises an automatic control unit. The automatic control unit is signal connected with the seventh automatic switch valve 541, the eighth automatic switch valve 521, the first automatic switch valve 21, the second automatic switch valve 23, the first automatic regulating valve 311, the third automatic switch valve 322, the fourth automatic switch valve 331, the second automatic regulating valve 411, the fifth automatic regulating valve 431 and the sixth automatic switch valve 421 respectively.

[0042] The automatic control unit controls the temperature in the circulating temperature control pipeline 2 by opening or closing the first automatic switch valve 21, the second automatic switch valve 23, the first automatic regulating valve 311, the third automatic switch valve 322, the fourth automatic switch valve 331, the second automatic regulating valve 411 and the sixth automatic switch valve 421 respectively, so as to realize the automation of the temperature control of the reaction kettle 1.

[0043] When the reaction kettle 1 needs to be heated, the automatic control unit controls to open the second automatic regulating valve 411, the fifth automatic regulating valve 431 and the sixth automatic switch valve 421, and to close the first automatic regulating valve 311, the third automatic switch valve 322 and the fourth automatic switch valve 331; the coolant supply pipeline, the coolant return pipeline and the coolant emptying pipeline are closed, and the heat medium supply pipeline, the heat medium temperature control pipeline and the heat medium return pipeline 42 are opened to realize the heating effect of the heat medium on the reaction kettle 1; conversely, the reaction kettle 1 needs to be cooled.

[0044] The sixth automatic switch valve 421 and the seventh automatic switch valve 541 are electrically connected with the automatic control unit, and the automatic control unit controls the opening and closing of the sixth automatic switch valve 421 and the seventh automatic switch valve 541 according to the actual situation, so as to realize the automatic adjustment of the circulating temperature control pipeline 2.

[0045] When the pressure in the circulating temperature control pipeline 2 is too large, the control valve is opened, and the medium in the circulating temperature control pipeline 2 flows into the expansion pipe through the expansion pipeline 52; to prevent safety accidents caused by the pressure in the circulating temperature control pipeline 2 being too large. When there is less water in the circulating temperature control pipeline 2, the medium in the storage tank flows into the circulating temperature control pipeline 2 through the liquid supplementing pipeline 54, the expansion tank 51 and the expansion pipeline 52 in sequence to supplement the liquid.

[0046] On the basis of the above-mentioned embodiments, the system is further provided with an overflow pipeline 55 and a collection tank, one end of the overflow pipeline 55 is in communication with the expansion tank 51, and the other end of the overflow pipeline 55 is in communication with the collection tank.

[0047] When the water pressure in the circulating temperature control pipeline 2 is too large, part of the water flow can flow into the expansion tank 51 through the expansion pipeline 52, and when the water level in the expansion tank 51 is too high, the water in the expansion tank 51 flows into the collection tank through the overflow pipeline 55, thereby ensuring the safety and controllability of the inside of the expansion tank 51 and improving the safety factor of the system during use.

[0048] Further, the bottom of the expansion tank 51 is provided with a cleaning and sewage discharge port 511, which can periodically discharge sewage in the expansion tank 51.

[0049] Further, a multifunctional automatic temperature control system further comprises a compressed air pipeline and a compression pump, the air outlet of the compressed air pipeline is in communication with the circulating temperature control pipeline; the compression pump is arranged on the compressed air pipeline, and the air outlet of the compression pump is in communication with the air inlet of the compressed air pipeline. Among them, the control valve is further arranged on the compressed air pipeline, and the control valve is signal connected with the automatic control unit.

[0050] Specifically, the compression pump is signal connected with the automatic control unit.

[0051] Further, when the reaction kettle 1 needs to be quickly switched from the cooling mode to the heating mode, the valves on the refrigerant return pipeline 32 and the refrigerant supply pipeline 31 are closed, the control valve on the compressed air pipeline is opened, the fourth automatic on-off valve 331 on the refrigerant evacuation pipeline 33 is opened, and the compression pump is started. The compression pump pumps compressed air into the compressed air pipeline and finally into the circulating temperature control pipeline, and the refrigerant in the circulating temperature control pipeline is blown clean by means of compressed air, and then the heating of the heat medium unit 4 is turned on, which can greatly improve the switching efficiency.

[0052] Further, when the reaction kettle 1 needs to be quickly switched from the heating mode to the cooling mode, the valve on the refrigerant supply pipeline 31 is closed, the control valve on the compressed air pipeline is opened, and the compression pump is started. The compression pump pumps compressed air into the compressed air pipeline and finally into the circulating temperature control pipeline, and the heat medium in the circulating temperature control pipeline is blown clean by means of compressed air, and then the heating of the refrigerant unit 3 is turned on, which can greatly improve the switching efficiency.

[0053] Further, the circulating temperature control pipeline 2 is provided with a circulating pump 22, which provides circulating power for water in the circulating temperature control pipeline 2.

[0054] Specifically, the expansion tank 51 is provided with a liquid level gauge 512, which can better observe the water level in the expansion tank 51, and the ninth automatic on-off valve on the liquid supplement pipeline 54 is started and stopped, thereby improving safety.

[0055] Specifically, the cold and hot medium in the system directly mixes the same medium (which can be different phases), and compared with indirect heat exchange, the efficiency can be improved by about 20%.

[0056] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional automated temperature control system, characterized in that, include: The circulating temperature control pipeline (2) is connected at one end to the upper side wall of the reactor (1) and at the other end to the bottom of the reactor (1). A circulating pump (22) is provided on the circulating temperature control pipeline (2). The refrigerant unit (3) is connected at one end to the circulating temperature control pipeline (2). The refrigerant unit (3) includes a refrigerant supply pipeline (31), a refrigerant return pipeline (32), and a refrigerant venting pipeline (33). The other ends of the refrigerant supply pipeline (31) and the refrigerant return pipeline (32) are connected to the main refrigerant pipeline in the plant area. The other end of the refrigerant venting pipeline (33) is connected to the refrigerant return pipeline (32). The heat medium unit (4) is connected at one end to the circulating temperature control pipeline (2). The heat medium unit (4) includes a heat medium supply pipeline (41), a heat medium return pipeline (42) and a heat medium temperature control pipeline (43). The other ends of the heat medium supply pipeline (41) and the heat medium return pipeline (42) are connected to the heat medium main pipe. The other end of the heat medium temperature control pipeline (43) is connected to the heat medium supply pipeline (41).

2. The multifunctional automated temperature control system as described in claim 1, characterized in that, The heat medium supply pipeline (41) is equipped with a second automatic regulating valve (411), the heat medium temperature control pipeline (43) is equipped with a fifth automatic regulating valve (431), and the heat medium return pipeline (42) is equipped with a sixth automatic switching valve (421).

3. The multifunctional automated temperature control system as described in claim 2, characterized in that, The circulating pump (22) is equipped with a first automatic switching valve (21) and a second automatic switching valve (23) in the front and rear directions respectively.

4. The multifunctional automated temperature control system as described in claim 3, characterized in that, The refrigerant supply line (31) is equipped with a first automatic regulating valve (311), the refrigerant return line (32) is equipped with a third automatic switching valve (322), and the refrigerant venting line (33) is equipped with a fourth automatic switching valve (331).

5. The multifunctional automated temperature control system as described in claim 4, characterized in that, The circulating temperature control pipeline (2) is also provided with a compensation unit, which includes: Expansion tank (51); An expansion pipeline (52) is connected at one end to the circulating temperature control pipeline (2) and at the other end to the expansion tank (51). An eighth automatic switching valve (521) is provided on the expansion pipeline (52). The replenishment pipeline (54) is connected at one end to the expansion tank (51) and at the other end to the main production water pipe of the plant area. The replenishment pipeline (54) is equipped with a seventh automatic switch valve (541).

6. The multifunctional automated temperature control system as described in claim 5, characterized in that, The multifunctional automated temperature control system also includes an automatic control unit, which is connected to the seventh automatic switching valve (541), the eighth automatic switching valve (521), the first automatic switching valve (21), the second automatic switching valve (23), the first automatic regulating valve (311), the third automatic switching valve (322), the fourth automatic switching valve (331), the second automatic regulating valve (411), the fifth automatic regulating valve (431), and the sixth automatic switching valve (421).

7. The multifunctional automated temperature control system as described in claim 6, characterized in that, The expansion tank (51) is provided with a cleaning and drain port (511) at the bottom; the heat medium supply pipeline (41) is also provided with a branch heat medium temperature control pipeline.

8. The multifunctional automated temperature control system as described in claim 7, characterized in that, A multifunctional automated temperature control system is also provided with an overflow pipe (55), one end of which is connected to the expansion tank (51).

9. A multifunctional automated temperature control system as described in claim 8, characterized in that, The expansion tank (51) is equipped with a level gauge (512).

10. A multifunctional automated temperature control system as described in claim 6, characterized in that, Also includes: The compressed air pipeline (61) has its outlet connected to the circulating temperature control pipeline (2); A compression pump (62) is installed on the compressed air pipeline (61), and the outlet of the compression pump (62) is connected to the inlet of the compressed air pipeline (61). The compression pump (62) is signal-connected to the automatic control unit.

Images