CN210206810U - TCU secondary circuit temperature control system - Google Patents
TCU secondary circuit temperature control system Download PDFInfo
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- CN210206810U CN210206810U CN201922235513.1U CN201922235513U CN210206810U CN 210206810 U CN210206810 U CN 210206810U CN 201922235513 U CN201922235513 U CN 201922235513U CN 210206810 U CN210206810 U CN 210206810U
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Abstract
The utility model belongs to the technical field of the temperature control system technique and specifically relates to a TCU secondary circuit temperature control system, with reation kettle jacket circulation intercommunication, including the vapor circulation circuit that is used for heating the circulating medium, a cooling water circulation circuit that is used for cooling the circulating medium and the normal atmospheric temperature water circulation circuit that is used for precooling or preheating the circulating medium, vapor circulation circuit, cooling water circulation circuit and normal atmospheric temperature water circulation circuit are parallelly connected and set up each other, reation kettle jacket's exit end is connected with expansion tank and circulating pump, reation kettle jacket's entry end is connected with pressure transmitter and temperature sensor, control heat-conducting medium's heating rate through the flow of adjusting the heating medium; controlling the cooling rate of the heat transfer medium by adjusting the flow rate of the cooling medium; the circulating medium can be precooled or preheated by circulating water at the normal temperature all the way so as to save energy; by analyzing the feedback temperature and the set temperature, the temperature rise and fall rate can be accurately controlled, and the temperature is stable and small in fluctuation during constant temperature control.
Description
Technical Field
The utility model belongs to the technical field of the temperature control system technique and specifically relates to a TCU second grade return circuit temperature control system.
Background
In the reaction process of the traditional information chemical industry factory, the traditional temperature control mode of the refined factory adopts the first-stage heat exchange of steam heating and brine cooling, and the requirements of the modern production process on environment, safety control, incapability of copying the process, product quality and the like cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of current one-level heat exchange efficiency low, the utility model provides a TCU second grade return circuit temperature control system through add cooling water circulation circuit and normal atmospheric temperature water circulation circuit on traditional vapor circulation circuit's basis and come the problem of solution.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a TCU secondary circuit temperature control system, with reation kettle jacket circulation intercommunication, including the vapor circulation circuit that is used for heating circulating medium, be used for cooling circulating medium's cooling water circulation circuit and be used for precooling or preheat circulating medium's normal atmospheric temperature water circulation circuit, vapor circulation circuit, cooling water circulation circuit and normal atmospheric temperature water circulation circuit are parallelly connected to be set up each other, and reation kettle jacket's exit end is connected with expansion tank and circulating pump, and reation kettle jacket's entry end is connected with pressure transmitter and temperature sensor.
Furthermore, the water vapor circulation loop comprises a first heat exchanger with a first switch valve, a water vapor inlet with a first regulating valve and a condensate outlet with a drain valve, and the water vapor inlet and the condensate outlet are communicated with the first heat exchanger.
Furthermore, the cooling water circulation loop comprises a second heat exchanger with a second switch valve, a cooling water inlet and a cooling water outlet with a second regulating valve, and the cooling water inlet and the cooling water outlet are communicated with the second heat exchanger.
Further, the normal temperature water circulation loop comprises a third heat exchanger with a third switch valve, a normal temperature water inlet with a third regulating valve and a normal temperature water outlet, and the normal temperature water inlet and the normal temperature water outlet are communicated with the third heat exchanger.
Further, the outlet end of the reaction kettle jacket is provided with a gas-liquid separator, one end of the gas-liquid separator is connected with the expansion tank, and the other end of the gas-liquid separator is connected with the circulating pump.
The utility model has the advantages that the heating rate of the heat-conducting medium is controlled by adjusting the flow of the heating medium; controlling the cooling rate of the heat transfer medium by adjusting the flow rate of the cooling medium; the circulating medium can be precooled or preheated by circulating water at the normal temperature all the way so as to save energy; by analyzing the feedback temperature and the set temperature, the temperature rise and fall rate can be accurately controlled, and the temperature is stable and small in fluctuation during constant temperature control.
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 reaction kettle jacket, 2, an expansion tank, 3, a circulating pump, 4, a pressure transmitter, 5, a temperature sensor, 6, a first switch valve, 7, a first heat exchanger, 8, a first regulating valve, 9, a steam inlet, 10, a drain valve, 11, a condensate water outlet, 12, a second switch valve, 13, a second heat exchanger, 14, a second regulating valve, 15, a cooling water inlet, 16, a cooling water outlet, 17, a third switch valve, 18, a third heat exchanger, 19, a third regulating valve, 20, a normal-temperature water inlet, 21, a normal-temperature water outlet and 22 are gas-liquid separators.
Detailed Description
If fig. 1 is the utility model discloses a structural schematic diagram, a TCU secondary circuit temperature control system, press from both sides 1 circulation intercommunication with reation kettle, including the vapor circulation return circuit that is used for heating the circulating medium, a normal atmospheric temperature water circulation return circuit that is used for cooling the circulating medium and is used for the precooling or preheats the circulating medium, vapor circulation return circuit, cooling water circulation return circuit and the mutual parallelly connected setting of normal atmospheric temperature water circulation return circuit, reation kettle presss from both sides the exit end of cover 1 and is connected with expansion tank 2 and circulating pump 3, reation kettle presss from both sides the entry end of cover 1 and is connected with pressure transmitter 4 and temperature sensor 5, reation kettle presss from both sides the exit end of cover 1 and is provided with vapour and liquid separator 22, vapour and liquid separator 22 one end is connected with expansion tank 2, the. The secondary loop temperature control system is driven by a circulating pump 3 to circulate a circulating medium between the system and a reaction kettle jacket 1. The gas-liquid separator 22 is favorable for separating gas and liquid in the pipeline as much as possible, after the gas-liquid separator 22, the liquid is liquid and does not contain gas, the gas is gas and does not contain liquid, the liquid separated by the gas-liquid separator 22 flows into the expansion tank 2, when water with pressure outside enters the expansion tank 2 air bag, nitrogen sealed in the tank is compressed, according to the Boyle's law of gas, the volume of the gas becomes small after being compressed, the pressure rises until the gas pressure in the expansion tank 2 is consistent with the pressure of the water, the water inflow is stopped when the water loss pressure is reduced, the gas pressure in the expansion tank 2 is greater than the pressure of the water, at the moment, the gas expansion extrudes the water in the air bag to supplement the system, and the pressure balance in the system can be ensured through the expansion tank 2.
The water vapor circulation loop comprises a heat exchanger I7 with a switch valve I6, a water vapor inlet 9 with a regulating valve I8 and a condensed water outlet 11 with a drain valve 10, wherein the water vapor inlet 9 and the condensed water outlet 11 are communicated with the heat exchanger I7. When the circulating medium needs to be heated, the first switch valve 6 is opened, the circulating medium enters the first heat exchanger 7, the first adjusting valve 8 is opened at the same time, and the heating rate of the heat-conducting medium is controlled by adjusting the flow of the heating medium.
The cooling water circulation loop comprises a second heat exchanger 13 with a second switch valve 12, a cooling water inlet 15 with a second regulating valve 14 and a cooling water outlet 16, and the cooling water inlet 15 and the cooling water outlet 16 are communicated with the second heat exchanger 13. And if the circulating medium needs to be cooled, opening the second switch valve 12, enabling the circulating medium to enter the second heat exchanger 13, and simultaneously opening the second adjusting valve 14 to control the cooling rate of the heat-conducting medium by adjusting the flow of the cooling medium.
The normal temperature water circulation loop comprises a heat exchanger III 18 with a switch valve III 17, a normal temperature water inlet 20 and a normal temperature water outlet 21 with an adjusting valve III 19, and the normal temperature water inlet 20 and the normal temperature water outlet 21 are communicated with the heat exchanger III 18. When the circulating medium needs to be pre-cooled or pre-heated, the third switch valve 17 is opened, the circulating medium enters the third heat exchanger 18, the third adjusting valve 19 is opened at the same time, the pre-cooling or pre-heating rate of the heat-conducting medium is controlled by adjusting the flow rate of the normal-temperature water, and energy is saved.
The temperature fed back by the system and the set temperature are analyzed in time, the temperature rise and fall rate can be accurately controlled, the temperature is stable during constant temperature control, and the fluctuation is small. The secondary loop temperature control system uses primary energy sources, such as steam, cooling water, and brine, in order to integrate the conventional system and fully utilize the existing primary energy sources, so that only a single heat transfer fluid (single fluid system) is used on the load side of the system, rather than alternating steam, cooling water, and brine. The main advantage of using a single fluid is that due to the excellent reproducibility of the sealing and the temperature within the temperature range, no other heat-conducting liquid needs to be switched for temperature control, by using heat-conducting oil, the operating pressure is reduced, and the heat-conducting liquid also separates the product from the external environment.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a TCU secondary circuit temperature control system, with reation kettle jacket (1) circulation intercommunication, characterized by, including the vapor circulation circuit that is used for heating the circulating medium, a cooling water circulation circuit that is used for cooling the circulating medium and the normal atmospheric temperature water circulation circuit that is used for precooling or preheating the circulating medium, vapor circulation circuit, cooling water circulation circuit and normal atmospheric temperature water circulation circuit are parallelly connected and set up each other, the exit end that reation kettle jacket (1) is connected with expansion tank (2) and circulating pump (3), the entry end that reation kettle jacket (1) is connected with pressure transmitter (4) and temperature sensor (5).
2. A TCU secondary circuit temperature control system according to claim 1, wherein the steam circulation circuit comprises a first heat exchanger (7) with a first switch valve (6), a steam inlet (9) with a first regulating valve (8) and a condensate outlet (11) with a drain valve (10), the steam inlet (9) and the condensate outlet (11) being in communication with the first heat exchanger (7).
3. The temperature control system of a TCU secondary circuit as claimed in claim 1, wherein the cooling water circulation circuit comprises a second heat exchanger (13) with a second switch valve (12), a cooling water inlet (15) and a cooling water outlet (16) with a second regulating valve (14), and the cooling water inlet (15) and the cooling water outlet (16) are communicated with the second heat exchanger (13).
4. The temperature control system of the TCU secondary circuit as claimed in claim 1, wherein the normal temperature water circulation circuit comprises a heat exchanger III (18) with a switch valve III (17), a normal temperature water inlet (20) and a normal temperature water outlet (21) with an adjusting valve III (19), and the normal temperature water inlet (20) and the normal temperature water outlet (21) are communicated with the heat exchanger III (18).
5. The TCU secondary circuit temperature control system of claim 1, wherein the outlet end of the reaction kettle jacket (1) is provided with a gas-liquid separator (22), one end of the gas-liquid separator (22) is connected with the expansion tank (2), and the other end of the gas-liquid separator (22) is connected with the circulating pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235513.1U CN210206810U (en) | 2019-12-13 | 2019-12-13 | TCU secondary circuit temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235513.1U CN210206810U (en) | 2019-12-13 | 2019-12-13 | TCU secondary circuit temperature control system |
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| Publication Number | Publication Date |
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| CN210206810U true CN210206810U (en) | 2020-03-31 |
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| CN201922235513.1U Active CN210206810U (en) | 2019-12-13 | 2019-12-13 | TCU secondary circuit temperature control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653321A (en) * | 2022-05-06 | 2022-06-24 | 安徽翔弘仪器科技有限公司 | Temperature control system utilizing primary energy for heat exchange |
| CN115253985A (en) * | 2022-08-31 | 2022-11-01 | 万华化学集团股份有限公司 | Heat transfer system for intermittent reaction and control method |
-
2019
- 2019-12-13 CN CN201922235513.1U patent/CN210206810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653321A (en) * | 2022-05-06 | 2022-06-24 | 安徽翔弘仪器科技有限公司 | Temperature control system utilizing primary energy for heat exchange |
| CN115253985A (en) * | 2022-08-31 | 2022-11-01 | 万华化学集团股份有限公司 | Heat transfer system for intermittent reaction and control method |
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