CN211400371U

CN211400371U - TCU heating temperature control system

Info

Publication number: CN211400371U
Application number: CN201922345674.6U
Authority: CN
Inventors: 唐良红; 孙建华; 唐志鹏
Original assignee: Jiangsu Futai Fluid Temperature Control Equipment Co ltd
Current assignee: Jiangsu Futai Fluid Temperature Control Equipment Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-01
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to the technical field of temperature control systems, in particular to a TCU heating temperature control system, which comprises a refrigeration cycle system and a heating cycle system, wherein the refrigeration cycle system is characterized in that an exhaust pressure sensor, a condenser, a liquid storage tank, a drying filter, a solenoid valve, a thermostatic expansion valve, an evaporator, an air return solenoid valve, a pressure gauge and an air return temperature PT100 are connected in series between an inlet and an outlet of a compressor; heating cycle system is through connecting back a mouthful PT100, nitrogen gas ooff valve, back a mouthful ooff valve, equipment back a mouthful stop valve between reation kettle's the play import, and circulating pump, blowoff valve, manometer, check valve, evaporimeter, stop valve, heater, outlet switch valve, outlet pressure changer, export PT100, and expansion tank junction equipment fluid infusion stop valve, exit linkage oil supplementation stop valve, secondly still are equipped with discharge valve and exhaust stop valve. The utility model discloses control by temperature change control accuracy is high, and the security performance is high, the maneuverability can be high, easily the operation.

Description

TCU heating temperature control system

Technical Field

The utility model belongs to the technical field of temperature control system's technique and specifically relates to a TCU heats temperature control system.

Background

Temperature regulating device among the prior art adopts refrigerant compressor to accomplish usually, and the during operation often can not follow high temperature and directly cool down, when applying to and surpassing 55 degrees working condition cooling down, often appear compressor protection or damage. In addition, the system is cooled to normal temperature from high temperature of 250 ℃ through cooling water or cold air, and then the refrigerating machine is started to cool to a low temperature section, although the mode is energy-saving in the high temperature section, an electromagnetic valve, an electrically operated valve or an air operated valve is required to be installed in the system for switching, and due to the fact that cold energy is additionally emitted by the air cooling heat exchanger or the water cooling heat exchanger in the low temperature section, the system cannot reduce due temperature or the power of the refrigerating machine is required to be increased (the efficiency of the refrigerating machine in the low temperature section is low, and energy is not saved). And the circulating system is provided with a valve member, so that the circulating system is often used in a high-temperature and low-temperature environment, the service life is shortened, and the risk of the system is increased. Meanwhile, the temperature control mode generally adopts the outlet temperature of the control system, and because the reaction sticks and other heat transfer large-lag heat exchange devices have large lag between the outlet temperature of the control system and the temperature to be controlled by an actual target, poor temperature control precision and overlarge up-down fluctuation often occur, and the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a TCU heating temperature control system.

The utility model provides a technical scheme that its technical problem adopted is: a TCU heating temperature control system comprises a refrigeration cycle system and a heating cycle system, wherein the refrigeration cycle system comprises a compressor, an exhaust pressure sensor, a condenser, a liquid storage tank, a drying filter, a solenoid valve, a thermostatic expansion valve, an evaporator, an air return solenoid valve, a first pressure gauge and an air return temperature PT100, wherein the exhaust pressure sensor, the condenser, the liquid storage tank, the drying filter, the solenoid valve, the thermostatic expansion valve, the evaporator, the air return solenoid valve, the first pressure gauge and the air return temperature PT100 are sequentially connected in series between an outlet and an inlet of the compressor through a first pipeline; the heating circulation system comprises an expansion tank, an equipment liquid supplementing stop valve, an exhaust stop valve, an oil supplementing stop valve, an exhaust valve, a circulating pump, an exhaust valve, a pressure gauge II, a check valve, an evaporator, a stop valve, a heater, an outlet switch valve, an outlet pressure transmitter, an outlet PT100, a reaction kettle, a return port PT100, a nitrogen switch valve, a return port switch valve and an equipment return port stop valve, wherein the return port PT100, the nitrogen switch valve, the return port switch valve and the equipment return port stop valve are sequentially connected between an outlet and an inlet of the reaction kettle through a second pipeline; the inlet of the expansion tank is connected with the liquid supplementing stop valve, the outlet of the liquid supplementing stop valve is connected with the oil supplementing stop valve through a fourth pipeline and communicated with the second pipeline, the expansion tank is further provided with an exhaust valve and an exhaust stop valve, and the exhaust stop valve is communicated with the second pipeline.

According to the utility model discloses a high low pressure controller is further included, through the third tube coupling high low pressure controller between the export of compressor and the import.

According to the utility model discloses a further embodiment, further include ooff valve, liquid check valve between expansion tank and the second pipeline connect gradually ooff valve and liquid check valve through the fourth pipeline.

According to the utility model discloses a further embodiment, further include the magnetism and turn over the board level gauge, still be equipped with the magnetism on the expansion tank and turn over the board level gauge.

According to the utility model discloses a further embodiment, further include overtemperature prote PT100, still be equipped with overtemperature prote PT100 on the heater.

The utility model has the advantages that the utility model is a multifunctional fluid temperature control device integrating heating and refrigeration, the temperature control precision of the device is high, and the performance of the device is stable; the safety performance of the equipment is high, the complexity of the conventional manual operation is avoided, and the resource and energy consumption are saved; the equipment has high operability and is easy to operate; the equipment has wide applicable temperature range and can be used for various production reactions.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

in the figure, 1, a compressor, 2, a high-low pressure controller, 3, an exhaust pressure sensor, 4, a condenser, 5, a liquid storage tank, 6, a drying filter, 7, an electromagnetic valve, 8, a thermal expansion valve, 9, an evaporator, 10, an air return electromagnetic valve, 11, a pressure gauge I, 12, return air temperature PT100, 13, an outlet pressure transmitter, 14, an outlet PT100, 15, a circulating pump, 16, an exhaust valve, 17, a pressure gauge II, 18, a check valve, 19, a stop valve, 20, a heater, 21, over-temperature protection PT100, 22, an outlet switch valve, 23, a switch valve, 24, a liquid check valve, 25, a magnetic turning plate liquid level meter, 26, an oil supplementing stop valve, 27, an exhaust valve, 28, an exhaust stop valve, 29, an equipment return stop valve, 30, a return switch valve, 31, an equipment liquid supplementing stop valve, 32. nitrogen switch valve, 33, reaction kettle, 34, expansion tank, 35 and return port PT 100.

Detailed Description

Fig. 1 is the structure schematic diagram of the utility model, a TCU heating temperature control system, including refrigeration cycle system and heating cycle system, wherein refrigeration cycle system includes compressor 1, exhaust pressure sensor 3, condenser 4, liquid storage tank 5, drier-filter 6, solenoid valve 7, thermal expansion valve 8, evaporimeter 9, return-air solenoid valve 10, manometer one 11, return-air temperature PT10012, connect in series exhaust pressure sensor 3 through the first pipeline in proper order between the export of compressor 1 and the import, condenser 4, liquid storage tank 5, drier-filter 6, solenoid valve 7, thermal expansion valve 8, evaporimeter 9, return-air solenoid valve 10, manometer one 11, return-air temperature PT 10012; the heating circulation system comprises an expansion tank 34, an equipment liquid supplementing stop valve 31, an exhaust stop valve 28, an oil supplementing stop valve 26, an exhaust valve 27, a circulation pump 15, an exhaust valve 16, a second pressure gauge 17, a check valve 18, an evaporator 9, a stop valve 19, a heater 20, an outlet switch valve 22, an outlet pressure transmitter 13, an outlet PT10014, a reaction kettle 33, a return port PT10035, a nitrogen switch valve 32, a return port switch valve 30 and an equipment return port stop valve 29, wherein the return port PT10035, the nitrogen switch valve 32, the return port switch valve 30, the equipment return port stop valve 29, the circulation pump 15, the exhaust valve 16, the second pressure gauge 17, the check valve 18, the evaporator 9, the stop valve 19, the heater 20, the outlet switch valve 22, the outlet pressure transmitter 13 and the outlet 100PT 14 are sequentially connected through a second pipeline between an outlet and an inlet of the reaction kettle 33; the inlet of the expansion tank 34 is connected with the liquid supplementing stop valve 31, the outlet is connected with the oil supplementing stop valve 26 through a fourth pipeline and communicated with the second pipeline, the expansion tank 34 is further provided with an exhaust valve 27 and an exhaust stop valve 28, and the exhaust stop valve 28 is communicated with the second pipeline. Preferably, the system also comprises a high-low pressure controller 2, and the outlet and the inlet of the compressor 1 are connected with the high-low pressure controller 2 through a third pipeline. The system also comprises a switch valve 23, a liquid check valve 24, and a fourth pipeline which is used for connecting the switch valve 23 and the liquid check valve 24 in sequence between the expansion tank 34 and the second pipeline. The device also comprises a magnetic turning plate liquid level meter 25, and the expansion tank 34 is also provided with the magnetic turning plate liquid level meter 25. Also comprises an overtemperature protection PT10021, and the heater 20 is also provided with an overtemperature protection PT 10021.

The utility model discloses a theory of operation: when the equipment is set for heating, a circulating pump 15, an exhaust valve 16, a second pressure gauge 17, a check valve 18, an evaporator 9, a stop valve 19, a heater 20, an outlet switch valve 22, an outlet pressure transmitter 13 and an outlet PT10014 on a second pipeline are opened; the liquid replenishing stop valve 31, the exhaust valve 27, the exhaust stop valve 28 and the oil replenishing stop valve 26 of the expansion tank 34 are opened. Firstly, liquid is replenished into the expansion tank 34 through the liquid replenishing stop valve 31, liquid flows into the second pipeline from the opened oil replenishing stop valve 26 through the fourth pipeline and enters the circulating pump 15 for circulation, when liquid is initially replenished in the equipment, in order to avoid idling of the circulating pump 15, the pressure is suddenly high and suddenly low to damage the using device and gas exists in the pipeline, the gas in the pipeline needs to be discharged, and namely, the gas is discharged through the exhaust valve 27. Liquid after the circulation heats through heater 20 again, liquid after the heating passes through outlet switch valve 22 and gets into reation kettle 33, open back a mouthful PT10035, nitrogen gas ooff valve 32, back a mouthful ooff valve 30, equipment returns a mouthful stop valve 29, let liquid after the heating get into reation kettle 33 after, the liquid that drives reation kettle 33 the inside gets into circulating pump 15 circulation once more from back a mouthful ooff valve 30 through the second pipeline, rethread heater 20 heats, liquid after the heating passes through outlet switch valve 22 and gets into reation kettle 33, so the circulation carries out heating work. The function of an exhaust valve 16 arranged on the second pipeline is to exhaust the medium in the equipment when the equipment is at the lowest temperature or the equipment and the equipment are repaired and displaced; the second pressure gauge 17 is used for indicating the pressure value of the outlet of the circulating pump 15; the check valve 18 is used for preventing medium backflow when the device is stopped; the evaporator 9 has the function of directly allowing the heated liquid to flow when the heated liquid and the refrigerant exchange heat when the later-stage equipment performs refrigeration, and only needs to be heated; the stop valve 19 is used for regulating the flow at the outlet of the circulating pump 15; the outlet pressure transmitter 13 is used for detecting the outlet pressure value of the equipment, displaying the outlet pressure value on an operation screen in real time, and closing the equipment when the outlet pressure is greater than a set value; the outlet PT10014 is used for detecting the outlet temperature of the equipment, displaying the outlet temperature on an equipment operation screen in real time, and the PLC can adjust the outlet temperature according to the real-time temperature and intermittently start the heater 20; the return port PT10035 is used for detecting the return port temperature of the equipment, and the screen displays the return port temperature in real time when the equipment is operated; the nitrogen switch valve 32 is used for sealing a nitrogen inlet of the device, so that the circulating medium is ensured not to absorb moisture in the air in a low-temperature state, and the heat-conducting medium is ensured not to volatilize oil mist in a high-temperature state; the return opening switch valve 30 is used for synchronously opening and closing with the circulating pump 15 when the equipment runs so as to prevent the heat-conducting medium from flowing back; when the equipment return stop valve 29 is used, the valve is closed to prevent the liquid from flowing during maintenance.

When the equipment needs refrigeration, the compressor 1 is started after the heating equipment is started, and the exhaust pressure sensor 3, the condenser 4, the liquid storage tank 5, the drying filter 6, the electromagnetic valve 7, the thermostatic expansion valve 8, the evaporator 9, the air return electromagnetic valve 10, the first pressure gauge 11 and the air return temperature PT10012 on the first pipeline are opened. The working principle of cooling is that a compressor 1 is started to do work to compress a refrigerant into high-temperature and high-pressure gas, then high-temperature and high-pressure liquid is converted into medium-temperature and high-pressure gas through a condenser 4, then the medium-temperature and high-pressure liquid is converted into low-temperature and low-pressure wet steam through a thermostatic expansion valve 8, and the wet steam enters an evaporator 9 to exchange heat with liquid heated by equipment so as to achieve the aim of refrigerating in the equipment. In addition, a discharge pressure sensor 3 arranged on the first pipeline is used for detecting the pressure control of the discharge of the compressor; the liquid storage tank 5 has the characteristics of expansion with heat and contraction with cold, and stores part of the refrigerant to ensure the sufficiency of the refrigerant of the system in order to ensure the circulating refrigerant quantity of the refrigeration system; the drying filter 6 is used for drying trace moisture in the pipeline of the refrigeration system; the electromagnetic valve 7 is used for controlling the on-off of the refrigeration pipeline; the air return electromagnetic valve 10 is used for controlling the on-off of the refrigeration pipeline; the first pressure gauge 11 is used for detecting return air pressure, directly displaying the return air pressure on an operation screen, and shutting down the equipment to protect the compressor when the return air pressure is lower than a pressure set value or the pressure set value; the return air temperature PT10012 is used for detecting the return air temperature of the compressor.

The high-low pressure controller 2 is connected between the outlet and the inlet of the compressor 1 through a third pipeline. The method mainly comprises the steps of detecting the return air pressure and the exhaust pressure of the compressor 1 and calculating the difference value of the return air pressure and the exhaust pressure. When the return air pressure is lower than the set value or the exhaust air pressure is higher than the set value, and the difference between the return air and the exhaust air is larger than the set value, the high-low pressure controller 2 works to close the compressor 1 to achieve the protection effect.

The on-off valve 23 and the liquid check valve 24 are connected in sequence between the expansion tank 34 and the second line through a fourth line. When the device is at high temperature, the heat-conducting liquid has the characteristics of expansion with heat and contraction with cold, and the expanded part enters the expansion tank 34 through the switch valve 23. The liquid check valve 24 prevents the backflow of the expanding liquid through the expansion tank 34. The expansion tank 34 is also provided with a magnetic turning plate liquid level meter 25 which is mainly used as a liquid detection device with double functions of visualization and detection (detection numerical value is transmitted to an operation screen in real time), heat conduction liquid cold shrinkage needs to be supplemented when the equipment is refrigerated, circulating medium expands when the equipment is heated, and liquid level change can be known according to magnetic turning plate detection and visual liquid level.

The heater 20 is provided with an overtemperature protection PT 10021. When the surface temperature of the heater 20 exceeds the set temperature (200-250 ℃), the heater 20 is powered off, and the equipment is stopped.

The utility model relates to a multifunctional fluid temperature control device integrating heating and refrigeration, which has high temperature control precision and stable device performance; the safety performance of the equipment is high, the complexity of the conventional manual operation is avoided, and the resource and energy consumption are saved; the equipment has high operability and is easy to operate; the equipment has wide applicable temperature range and can be used for various production reactions.

Claims

1. A TCU heating temperature control system is characterized by comprising a refrigeration cycle system and a heating cycle system, wherein the refrigeration cycle system comprises a compressor (1), an exhaust pressure sensor (3), a condenser (4), a liquid storage tank (5), a drying filter (6), an electromagnetic valve (7), a thermostatic expansion valve (8), an evaporator (9), an air return electromagnetic valve (10), a pressure gauge I (11), an air return temperature PT100 (12), and the exhaust pressure sensor (3), the condenser (4), the liquid storage tank (5), the drying filter (6), the electromagnetic valve (7), the thermostatic expansion valve (8), the evaporator (9), the air return electromagnetic valve (10), the pressure gauge I (11) and the air return temperature PT100 (12) are sequentially connected in series between an outlet and an inlet of the compressor (1) through a first pipeline; heating cycle system includes expansion tank (34), equipment fluid infusion stop valve (31), exhaust stop valve (28), mend oil stop valve (26), discharge valve (27), circulating pump (15), blowoff valve (16), manometer two (17), check valve (18), evaporimeter (9), stop valve (19), heater (20), export ooff valve (22), export pressure transmitter (13), export PT100 (14), reation kettle (33), return port PT100 (35), nitrogen gas ooff valve (32), return port ooff valve (30), equipment return port stop valve (29), connect gradually return port PT100 (35), nitrogen gas ooff valve (32), return port ooff valve (30), equipment return port stop valve (29) through the second pipeline between the export of reation kettle (33) and the import, circulating pump (15), blowoff valve (16), manometer two (17), The system comprises a check valve (18), an evaporator (9), a stop valve (19), a heater (20), an outlet switch valve (22), an outlet pressure transmitter (13) and an outlet PT100 (14); the liquid supplementing stop valve (31) of the inlet connecting equipment of the expansion tank (34) is connected with the oil supplementing stop valve (26) through a fourth pipeline, an outlet of the liquid supplementing stop valve is communicated with the second pipeline, the expansion tank (34) is further provided with an exhaust valve (27) and an exhaust stop valve (28), and the exhaust stop valve (28) is communicated with the second pipeline.

2. The TCU heating temperature control system of claim 1, further comprising a high-low pressure controller (2), wherein the outlet and the inlet of the compressor (1) are connected to the high-low pressure controller (2) through a third pipeline.

3. The TCU heating temperature control system of claim 1, further comprising a switch valve (23), a liquid check valve (24), wherein the switch valve (23) and the liquid check valve (24) are connected in sequence between the expansion tank (34) and the second pipeline through a fourth pipeline.

4. The TCU heating temperature control system of claim 1, further comprising a magnetic flap level gauge (25), wherein the expansion tank (34) is further provided with the magnetic flap level gauge (25).

5. The TCU heating temperature control system of claim 1, further comprising an overtemperature protection PT100 (21), wherein the heater (20) is further provided with an overtemperature protection PT100 (21).