CN218585188U - Power station heat exchange simulation system - Google Patents
Power station heat exchange simulation system Download PDFInfo
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- CN218585188U CN218585188U CN202222383547.7U CN202222383547U CN218585188U CN 218585188 U CN218585188 U CN 218585188U CN 202222383547 U CN202222383547 U CN 202222383547U CN 218585188 U CN218585188 U CN 218585188U
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Abstract
The utility model discloses a power station heat exchange simulation system, which comprises a heating unit, a cooling unit and a control unit; the heating unit comprises a heater body, a heat collector and a closed water pump; the water outlet of the heater body is communicated with the water inlet of the heat collector, and the water outlet of the heat collector is communicated with the water inlet of the heater body after passing through the closed water pump; the cooling unit comprises a cooling water tank, a heat exchanger and an open water pump; the water outlet of the cooling water tank is communicated with the water inlet of the heat exchanger through an open water pump, and the water outlet of the heat exchanger is communicated with the water inlet of the cold area water tank; the heat collector is arranged on one side of the heat exchanger; and the control unit is respectively connected with the closed water pump and the open water pump. The utility model is provided with a heating unit, a cooling unit and a control unit, and the three units can be operated independently without influencing respective operation; therefore the utility model discloses be convenient for carry out online emulation debugging, improve the work efficiency of emulation debugging.
Description
Technical Field
The utility model relates to a power station simulation control system technical field specifically is a power station heat exchange simulation system.
Background
With the rapid development of the automatic control technology of power station thermal technology, more and more control strategies are widely applied in actual production. However, due to the complex algorithm and the large number of model parameters, the control strategy needs to be observed, adjusted and optimized for a long time in practical application, and it is difficult to obtain the optimal control parameters and a highly matched control model quickly.
Most of the existing automatic control simulation systems adopt a virtual simulation system based on a mechanism model, and process parameters and system output in the simulation system are calculated through a transfer function model preset by a computer. Firstly, the system seriously depends on the accuracy of a transfer function model, and the acquisition of the transfer model has higher difficulty and more uncertainty, thereby influencing the accuracy of the simulation system; secondly, random noise and system interference in a control system cannot be simulated by a mechanism model-based virtual simulation system, and the intelligent control system which is debugged and optimized by the simulation system is difficult to effectively eliminate the interference variable of the system in time; finally, the system faces a complex coupling control system, and a mechanism model of the system is difficult to obtain. And the working efficiency of the simulation debugging in the prior art is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the power station heat exchange simulation system with high simulation debugging work efficiency is provided.
In order to solve the technical problem, the utility model provides a following technical scheme:
a power station heat exchange simulation system comprises a heating unit, a cooling unit and a control unit;
the heating unit comprises a heater body, a heat collector and a closed water pump; the water outlet of the heater body is communicated with the water inlet of the heat collector, and the water outlet of the heat collector is communicated with the water inlet of the heater body after passing through the closed water pump;
the cooling unit comprises a cooling water tank, a heat exchanger and an open water pump; the water outlet of the cooling water tank is communicated with the water inlet of the heat exchanger through an open water pump, and the water outlet of the heat exchanger is communicated with the water inlet of the cold area water tank;
the heat collector is arranged on one side of the heat exchanger;
the control unit is respectively connected with the closed water pump and the open water pump.
The advantages are that: the utility model is provided with a heating unit, a cooling unit and a control unit, and the three units can be operated independently without influencing respective operation; and meanwhile, the control unit is connected with the closed water pump of the heating unit and the open water pump of the cooling unit and is used for controlling the temperature control function of the heat exchange system. Therefore the utility model discloses be convenient for carry out online emulation debugging, improve the work efficiency of emulation debugging.
Preferably, a heating plate is arranged at the bottom inside the heater body.
Preferably, a water tank liquid level meter is arranged on the cooling water tank; a heater liquid level meter is arranged on the heater body; and the heat collector is provided with a heat collector liquid level meter.
Preferably, the heating unit further comprises a closed water pump inlet valve and a closed water pump outlet valve;
the inlet valve of the closed water pump is arranged on a pipeline which is communicated with the inlet of the closed water pump and the water outlet of the heat collector; and the closed water pump outlet valve is arranged on a pipeline for communicating the outlet of the closed water pump with the water inlet of the heater body.
Preferably, the cooling unit further comprises an open water pump inlet valve and an open water pump outlet valve;
the inlet valve of the open water pump is arranged on a pipeline which communicates the inlet of the open water pump with the water outlet of the cooling water tank; and the outlet valve of the open water pump is arranged on a pipeline for communicating the outlet of the open water pump with the water inlet of the heat exchanger.
Preferably, an inlet of the closed water pump is communicated with the cooling water tank, and a main water outlet valve is arranged on a pipeline for communicating the inlet of the closed water pump with the cooling water tank.
Preferably, an open water outlet thermometer and an open water outlet valve which are sequentially arranged are further arranged on a pipeline for communicating the water outlet of the heat exchanger with the water inlet of the cooling water tank.
Preferably, a heater water outlet thermometer is arranged on a pipeline for communicating the water outlet of the heater body with the water inlet of the heat collector.
Preferably, a heater flowmeter is arranged at the water inlet of the heater body; and an open water flow meter is arranged at the water inlet of the heat exchanger.
Preferably, the control unit comprises a controller and a MODBUS communication card; the controller is connected with the closed water pump and the open water pump through the MODBUS communication card.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model is provided with a heating unit, a cooling unit and a control unit, and the three units can be independently operated without influencing respective operation; therefore the utility model discloses be convenient for carry out online emulation debugging, improve the work efficiency of emulation debugging.
(2) The utility model discloses the control unit is connected through the open water pump with heating unit's closed water pump and cooling unit for control heat exchange system's temperature control function. The method is suitable for online simulation debugging, provides a high-precision simulation platform, avoids disturbance or damage to the system caused by repeated optimization in practical application, and greatly improves the optimization efficiency of the control strategy.
(3) The utility model discloses based on physics heat exchange process completely, the simulation process is higher than virtual simulation precision, can also simulate real system noise and interference simultaneously. The interference variable of the system can be eliminated timely and effectively.
Drawings
Fig. 1 is a schematic circuit diagram of an embodiment of the present invention;
in the figure: 1. a heating unit; 11. a heater body; 12. a heat collector; 13. a closed water pump; 14. an inlet valve of the closed water pump; 15. a closed water pump outlet valve; 16. heating the plate; 17. a heater level gauge; 18. a heater flow meter; 19. a heater water outlet thermometer; 110. a collector level gauge; 111. a main water outlet valve; 2. a cooling unit; 21. a cooling water tank; 22. a heat exchanger; 23. an open water pump; 24. an open water pump inlet valve; 25. an outlet valve of the open water pump; 26. an open water outlet valve; 27. an open water outlet thermometer; 28. an open water flow meter; 29. a tank level gauge; 3. a control unit; 31. a controller; 32. MODBUS communication card.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, the present embodiment discloses a power station heat exchange simulation system, which includes a heating unit 1, a cooling unit 2, and a control unit 3.
The heating unit 1 is composed of a closed water circulation system and comprises a heater body 11, a heat collector 12, a closed water pump 13, a closed water pump inlet valve 14, a closed water pump outlet valve 15, a heating plate 16, a heater liquid level meter 17, a heater flow meter 18, a heater water outlet thermometer 19 and a heat collector liquid level meter 110.
The water outlet of the heater body 11 is communicated with the water inlet of the heat collector 12, and the water outlet of the heat collector 12 is communicated with the water inlet of the heater body 11 after passing through the closed water pump 13.
Wherein, the inlet valve 14 of the closed water pump is arranged on a pipeline which is communicated with the inlet of the closed water pump 13 and the water outlet of the heat collector 12; the closed water pump outlet valve 15 is arranged on a pipeline which is communicated between the outlet of the closed water pump 13 and the water inlet of the heater body 11. The heating plate 16 is arranged at the bottom inside the heater body 11 and used for heating circulating water.
A heater level gauge 17 is provided on the heating body for monitoring the water level inside the heater body 11. The heater flow meter 18 is provided at the water inlet of the heater body 11 for detecting the inlet flow rate of the heater body 11. The heater water outlet thermometer 19 is arranged on a pipeline which is communicated with the water outlet of the heater body 11 and the water inlet of the heat collector 12 and is used for monitoring the temperature of the outlet of the heater. A collector level gauge 110 is provided on the collector 12 for monitoring the water level inside the collector 12.
The cooling unit 2 is composed of an open water circulation system, and comprises a cooling water tank 21, a heat exchanger 22, an open water pump 23, an open water pump inlet valve 24, an open water pump outlet valve 25, an open water outlet valve 26, an open water outlet thermometer 27, an open water flowmeter 28 and a water tank liquid level meter 29.
A water outlet of the cooling water tank 21 is communicated with a water inlet of the heat exchanger 22 after passing through the open water pump 23, and a water outlet of the heat exchanger 22 is communicated with a water inlet of the cold area water tank;
wherein, the open water pump inlet valve 24 is arranged on a pipeline which is communicated with the inlet of the open water pump 23 and the water outlet of the cooling water tank 21; an open water pump outlet valve 25 is arranged on a pipeline which is communicated with the outlet of the open water pump 23 and the water inlet of the heat exchanger 22.
The open water outlet valve 26 and the open water outlet thermometer are respectively and sequentially arranged on a pipeline communicated between the water outlet of the heat exchanger 22 and the water inlet of the cooling water tank 21; the open water outlet thermometer is located near the outlet of the heat exchanger 22 for monitoring the temperature at the outlet of the heat exchanger 22. An open water flow meter 28 is provided at the water inlet of the heat exchanger 22 for monitoring the flow at the water inlet of the heat exchanger 22. A tank level meter 29 is provided on the cooling water tank 21 for monitoring the water level in the cooling water tank 21.
The inlet of the closed water pump 13 of the heating unit 1 is communicated with the cooling water tank 21 of the cooling unit 2, and a main water outlet valve 111 is arranged on a pipeline for communicating the inlet of the closed water pump 13 with the cooling water tank 21.
While the heat collector 12 is disposed at one side of the heat exchanger 22 for performing physical heat exchange between the heating unit 1 and the cooling unit 2.
When the heating unit 1 works, the main water outlet valve 111 and the closed water pump outlet valve 15 are firstly opened, then the closed water pump 13 is started, and at the moment, closed water enters the heater body 11. And closing the main water outlet valve 111 until the heater flowmeter 18, the heater liquid level meter 17 and the heater water outlet thermometer 19 respectively monitor a certain closed water flow value, a certain water level value and a certain temperature value, and the water level of the heat collector 12 reaches a certain value. Finally, the inlet valve 14 of the closed water pump is opened to establish the internal circulation of the heating medium. The closed water return in the internal circulation flows continuously in the heater body 11 and the heat collector 12. After the closed water circulation is established, the heating plate 16 is started to gradually heat the closed circulating water, the outlet water temperature of the heater displays a real-time closed water temperature value, after the closed water temperature reaches the upper limit of the system, the heating plate 16 stops heating, and the heating plate 16 is restarted until the closed circulating water temperature is lower than the lower limit of the system.
When the cooling link works, firstly, the inlet valve 24 of the open water pump, the outlet valve 25 of the open water pump and the outlet valve 26 of the open water pump are opened, secondly, the open water pump 23 is started, the open water enters the heat exchanger 22 for heat exchange, the flow and the temperature of the open water are respectively monitored by the open water flow meter 28 and the open water outlet temperature, the open water flows back to the water tank after passing through the heat exchanger 22, the open water is in contact with air in the backflow process for cooling, and therefore the external circulation of the cooling medium is established.
The control unit 3 comprises a controller 31 and a MODBUS communication card 32; the controller 31 is connected with the closed water pump 13 and the open water pump 23 through a MODBUS communication card 32. The controller 31 acts on the open water pump 23 or the closed water pump 13 through the MODBUS communication card 32. The controller 31 can control the flow rate of the open water entering the heat exchanger 22 by adjusting the frequency conversion instruction of the open water pump 23, so as to control the closed water temperature in the closed water circulation system. The closed water flow entering the heater body 11 can be controlled by adjusting the frequency conversion instruction of the closed water pump 13 so as to control the closed water temperature in the closed water circulation system.
Through the heat exchange simulation system, the control parameters can be continuously optimized and adjusted until the control requirements of actual production are met, the tested intelligent control strategy is applied to the actual control object of the power station, the workload of algorithm field optimization is greatly reduced, different types of working conditions, even fault working conditions, can be tested through the simulation system, and the safety and the stability of the control algorithm are effectively improved.
And this embodiment is based on actual physics heat exchange process, and two kinds of temperature control modes of heating and cooling are possessed to emulation heat exchange system temperature automatic control process, and this embodiment has heating unit 1, cooling unit 2 and the control unit 3, and these three links all can the independent operation, do not influence operation separately, consequently the online simulation debugging of being convenient for improves the work efficiency of simulation debugging.
To sum up, the utility model discloses based on actual physics heat exchange process, the large-scale heat exchange system in simulation power station, the simulation precision is high, the matching nature is better, possesses heat exchange system temperature automatic control function, is applicable to online simulation debugging, provides a high accuracy simulation platform, avoids optimizing repeatedly in practical application disturbance or the injury that causes the system, has greatly promoted control strategy's optimization efficiency.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.
The above embodiments only represent the implementation modes of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, without departing from the concept of the present invention, a plurality of deformations and improvements can be made, and these all belong to the protection scope of the present invention.
Claims (10)
1. A power station heat exchange simulation system is characterized in that: comprises a heating unit (1), a cooling unit (2) and a control unit (3);
the heating unit (1) comprises a heater body (11), a heat collector (12) and a closed water pump (13); the water outlet of the heater body (11) is communicated with the water inlet of the heat collector (12), and the water outlet of the heat collector (12) is communicated with the water inlet of the heater body (11) after passing through the closed water pump (13);
the cooling unit (2) comprises a cooling water tank (21), a heat exchanger (22) and an open water pump (23); a water outlet of the cooling water tank (21) is communicated with a water inlet of the heat exchanger (22) through an open water pump (23), and a water outlet of the heat exchanger (22) is communicated with a water inlet of the cold area water tank;
the heat collector (12) is arranged on one side of the heat exchanger (22);
the control unit (3) is respectively connected with the closed water pump (13) and the open water pump (23).
2. The power station heat exchange simulation system of claim 1, wherein: and a heating plate (16) is arranged at the bottom in the heater body (11).
3. The power station heat exchange simulation system of claim 1, wherein: a water tank liquid level meter (29) is arranged on the cooling water tank (21); a heater liquid level meter (17) is arranged on the heater body (11); the heat collector (12) is provided with a heat collector liquid level meter (110).
4. The power station heat exchange simulation system of claim 1, wherein: the heating unit (1) also comprises a closed water pump inlet valve (14) and a closed water pump outlet valve (15);
the closed water pump inlet valve (14) is arranged on a pipeline which is communicated with the inlet of the closed water pump (13) and the water outlet of the heat collector (12); and the closed water pump outlet valve (15) is arranged on a pipeline for communicating the outlet of the closed water pump (13) with the water inlet of the heater body (11).
5. The power station heat exchange simulation system of claim 1, wherein: the cooling unit (2) further comprises an open water pump inlet valve (24) and an open water pump outlet valve (25);
the open water pump inlet valve (24) is arranged on a pipeline which is communicated with the inlet of the open water pump (23) and the water outlet of the cooling water tank (21); and the outlet valve (25) of the open water pump is arranged on a pipeline for communicating the outlet of the open water pump (23) with the water inlet of the heat exchanger (22).
6. The power station heat exchange simulation system of claim 1, wherein: the inlet of the closed water pump (13) is communicated with the cooling water tank (21), and a main water outlet valve (111) is arranged on a pipeline for communicating the inlet of the closed water pump (13) with the cooling water tank (21).
7. The power station heat exchange simulation system of claim 1, wherein: an open water outlet thermometer and an open water outlet valve (26) which are sequentially arranged are also arranged on the pipeline for communicating the water outlet of the heat exchanger (22) with the water inlet of the cooling water tank (21).
8. The power station heat exchange simulation system of claim 1, wherein: and a heater water outlet thermometer (19) is arranged on a pipeline for communicating the water outlet of the heater body (11) with the water inlet of the heat collector (12).
9. The power station heat exchange simulation system of claim 1, wherein: a heater flowmeter (18) is arranged at the water inlet of the heater body (11); an open water flow meter (28) is arranged at a water inlet of the heat exchanger (22).
10. The power station heat exchange simulation system of claim 1, wherein: the control unit (3) comprises a controller (31) and an MODBUS communication card (32); the controller (31) is connected with the closed water pump (13) and the open water pump (23) through the MODBUS communication card (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383547.7U CN218585188U (en) | 2022-09-07 | 2022-09-07 | Power station heat exchange simulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383547.7U CN218585188U (en) | 2022-09-07 | 2022-09-07 | Power station heat exchange simulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218585188U true CN218585188U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222383547.7U Active CN218585188U (en) | 2022-09-07 | 2022-09-07 | Power station heat exchange simulation system |
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| CN (1) | CN218585188U (en) |
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2022
- 2022-09-07 CN CN202222383547.7U patent/CN218585188U/en active Active
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