CN111981547B - Indoor temperature direct regulation and control device and method for central heating heat exchange station - Google Patents
Indoor temperature direct regulation and control device and method for central heating heat exchange station Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
The invention belongs to the technical field of heating ventilation air conditioners, and particularly relates to a direct indoor temperature regulation device and a direct indoor temperature regulation method for a central heating heat exchange station, which comprise a water supply pipe, a water return pipe, a sensor, a temperature control valve, a heat exchanger and a circulating pump, wherein the one-network water supply pipe is connected with an electric temperature control valve, the electric temperature control valve is connected with the heat exchanger, the heat exchanger is connected with a two-network water supply pipe, the two-network water supply pipe is connected with a two-network water supply temperature sensor, the tail end of the two-network water supply pipe is connected with a heat consumer, the heat consumer is connected with the two-network water return pipe, the two-network water return pipe is connected with the two-network water return temperature sensor and the two-network circulating pump, the tail end of the two-network water return pipe is connected with the heat exchanger, and the heat exchanger is connected with the one-network water return pipe; the device has simple structure, adopts a self-balancing object regulation and control method regardless of the outdoor temperature, fully utilizes the characteristic of large thermal inertia of the heating system, eliminates the influence of large hysteresis, and can automatically change the water supply temperature of the heating network when the room temperature fluctuates under the influence of the external temperature so as to realize heating according to the requirement.
Description
Technical Field
The invention belongs to the technical field of heating ventilation air conditioners, and particularly relates to a device and a method for directly regulating and controlling indoor temperature of a central heating heat exchange station.
Background
The heating system has two purposes of operation, one is to ensure the room temperature and make the user feel comfortable; the other is to save energy as much as possible, but it is a difficult matter to achieve comfort and energy saving, and for years, people calculate heat load and adopt automation technology to ensure that the room temperature is accurate and stable, because only the accurate and stable room temperature can ensure that the energy saving is achieved under the condition that a heat user feels comfortable.
The regulation and control of the room temperature are not easy, particularly the room temperature of a building, because the thermal inertia of the building is very large, the lag of heat transmission of a pipe network is very large, uncertain factors influencing the room temperature are many, and finally the regulation and control effect of the room temperature is not ideal; the method for adjusting the room temperature belongs to indirect room temperature adjustment and control because the heating load and the room temperature are in a calculation relation, the room temperature is inaccurate because the calculated heating load is inaccurate, the room temperature is difficult to keep accurate and stable because the room temperature is not directly adjusted and controlled, and the room temperature is used as a controlled object to directly control the water supply temperature, so that the room temperature meets the requirement.
Disclosure of Invention
In order to solve the technical problems, the invention provides a direct regulation and control device and a regulation and control method for the indoor temperature of a central heating heat exchange station, wherein the device can regulate and control the indoor temperature of a heat user in a mode of controlling the temperature of water supplied by a two-network according to a regulation and control algorithm, and realizes heat saving under the condition of meeting the comfort requirement of the heat user; the regulation and control method fully utilizes the characteristic of large thermal inertia of a heating system, eliminates the influence of large hysteresis, and can automatically change the water supply temperature of a heat supply network when the room temperature is fluctuated by external temperature so as to realize heat supply according to requirements.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a direct regulation and control device of central heating heat exchange station indoor temperature, includes delivery pipe, wet return, sensor, temperature-sensing valve, heat exchanger and circulating pump, electronic temperature-sensing valve is connected to a net delivery pipe, and electronic temperature-sensing valve connects the heat exchanger, and two nets delivery pipe are connected to the heat exchanger, connects two net water supply temperature sensor on two net delivery pipe, and two net delivery pipe end-to-end connection heat consumers, two net wet return are connected to the heat consumer, connect two net return temperature sensor and two net circulating pump on two net wet return, and the end-to-end connection heat exchanger of two net wet return, one net wet return are connected to the heat exchanger.
The room temperature regulating device is provided with an analog quantity output interface, a touch screen interface, an analog quantity setting interface, a room temperature acquisition system interface and an external room temperature setting interface, is provided with a corresponding touch screen and a room temperature acquisition system, and is provided with a temperature regulator, a room temperature correction signal retainer and an electric temperature control valve control signal retainer, and the room temperature regulating device is embedded with a regulating algorithm to regulate and control the temperature of the two-network water supply in a mode of controlling the primary side flow of the heat exchanger, so as to regulate and control the indoor temperature.
A method for directly regulating and controlling indoor temperature of a central heating heat exchange station comprises the following steps:
s1: after the heating system runs normally, whether the signals acquired by the regulating and controlling device are correct or not, whether the electric temperature control valve is controlled or not and whether the room temperature acquisition system can measure the room temperature or not are observed; firstly, a temperature supply regulator is started, a temperature supply value is manually set, a temperature supply regulating coefficient k3, a temperature supply accumulative coefficient k4, an exponential coefficient b and a temperature supply control period T2 are adjusted, and the temperature supply is controllable; then starting the automatic temperature supply calculation value, adjusting an empirical coefficient k1 and a coefficient R, and observing the room temperature control effect; finally, opening the room temperature regulator, adjusting the room temperature regulating coefficient k2, the index coefficient a and the room temperature correction period T1, and observing the room temperature control effect again;
s2: obtaining a two-network water supply calculated temperature according to the set indoor temperature and the indoor measured temperature, wherein the regulation and control of the room temperature of the controlled object are realized by two closed-loop feedbacks, one is room temperature closed-loop negative feedback, and the other is two-network temperature supply closed-loop negative feedback; the room temperature closed-loop feedback is used for regulating and controlling room temperature, and the two-network temperature supply closed-loop negative feedback is used for regulating and controlling the two-network water supply temperature; setting a room temperature and a measured room temperature, comparing to form a room temperature deviation, and continuously outputting a room temperature correction signal through a room temperature correction regulator; when the room temperature correction period T1 arrives, the room temperature correction signal is held in the holder;
after the room temperature is given and measured, a temperature supply calculation module is arranged, and the calculated two-network temperature supply can be obtained; calculating the temperature supplied by the second network, adding the room temperature correction signal, comparing the temperature with the actual temperature supplied by the second network, and outputting the temperature supply deviation; the temperature supply deviation is set to the temperature supply regulator to obtain a control signal required by the temperature control valve, and then when a periodic signal T2 arrives, the signal of the temperature control valve is output to the electric temperature control valve signal retainer;
the calculation temperature supply algorithm is as follows:
setting room temperature tnsz and measuring room temperature tns to obtain a calculated room temperature tnj ═ R ═ tnsz-tns, a calculated temperature supply tgj ═ k1 ═ tnj, k1 is an empirical coefficient, the value range is 1.8-3, R is a setting coefficient, and the value range is 1-4;
the room temperature regulator algorithm is as follows:
when T1 is 1, tgb is k2m ^ a
When T1 is 0, tgb is tgb
tgb is the room temperature correction signal; outputting m ═ tnsz-tns in a comparison link; k2 is a room temperature adjustment coefficient, and the value range is 1-3; a is an index coefficient, and the value range is 1-3; t1 is a control period, and the value range is 0.5 h-5 h;
the temperature regulator algorithm is as follows:
when T2 is 1, Fkd is k3n b + k4 Σ n
When T2 is 0, Fkd is Fkd
Fkd is a thermostatic valve position; comparing the link output n-tgj + tgb-tgs; tgs is actual two-wire heating; k3 is a temperature supply regulating coefficient, and the value range is 1-5; k4 is a temperature supply accumulated coefficient, and the value range is 0.1-2; b is an index coefficient, and the value range is 1-3; t2 is a control period, the value range is 1 min-15 min, and the temperature supply control period T2 is required to be less than the room temperature correction period T1;
s3: obtaining the valve position opening degree of the one-network electric temperature control valve according to the calculated temperature of the two-network water supply and the actual water supply temperature;
s4: at every interval period T2, the temperature of the water supplied by the second network is regulated and controlled in a way that the flow of the first network is controlled by a temperature control valve;
s5: and correcting the regulated room temperature at intervals of T1 according to the difference between the set room temperature and the indoor measured temperature acquired by the room temperature acquisition system.
Compared with the prior art, the invention has the following beneficial effects:
(1) the structure is simple, the design is reasonable, the indoor temperature of the heat consumer is regulated and controlled by controlling the temperature of the two-network water supply, and the heat is saved under the condition of meeting the comfort requirement of the heat consumer; (2) the method for self-balancing room temperature object regulation and control irrespective of the outdoor temperature is provided, the characteristic of large thermal inertia of a heating system is fully utilized, the influence of large hysteresis is eliminated, and when the room temperature fluctuates by the external temperature, the water supply temperature of a heat supply network can be automatically changed, so that the heat supply according to the requirement is realized.
Drawings
FIG. 1 is a schematic diagram of a room temperature control device and a heating system;
FIG. 2 is a main flow chart of the regulation process.
1. A room temperature regulating device; 2. an analog output interface; 3. a touch screen interface; 4. an analog quantity setting interface; 5. a room temperature acquisition system interface; 6. a touch screen; 7. a two-network water supply temperature sensor; 8. a two-network backwater temperature sensor; 9. a two-network water supply pipe; 10. a two-network water return pipe; 11. a two-network circulating pump; 12. a heat exchanger; 13. an electric temperature control valve; 14; a net water supply pipe; 15. a network water return pipe; 16. a room temperature acquisition system; 17. a hot user; 18. an interface is arranged at the external room temperature; 19. setting room temperature; 20. measuring the room temperature; 21. comparing at room temperature; 22. deviation of room temperature; 23. a room temperature regulator; 24. a temperature supply correction signal; 25. room temperature correction period; 26. a room temperature correction signal holder; 27. a second network actual temperature supply 28 and a second network temperature supply calculation module; 29. calculating the temperature supplied by the second network; 30. a temperature supply summation and comparison step; 31. heating after summing and comparing; 32. a temperature supply regulator; 33. valve position signals of the electric temperature control valve; 34. controlling the period of the electric temperature control valve; 35. and a control signal retainer of the electric temperature control valve.
Detailed Description
The present invention will be described below by way of examples with reference to the accompanying drawings.
Referring to fig. 1, a direct regulation and control device of indoor temperature of central heating heat exchange station comprises a water supply pipe, a water return pipe, a sensor, a temperature control valve, a heat exchanger and a circulating pump, wherein a water supply pipe 14 is connected with an electric temperature control valve 13, the electric temperature control valve 13 is connected with the heat exchanger 12, the heat exchanger 12 is connected with a two-network water supply pipe 9, a two-network water supply temperature sensor 7 is connected on the two-network water supply pipe 9, the end of the two-network water supply pipe 9 is connected with a heat consumer 17, the heat consumer 17 is connected with a two-network water return pipe 10, the two-network water return pipe 10 is connected with a two-network water return temperature sensor 8 and a two-network circulating pump 11, the end of the two-network water return pipe 10 is connected with the heat exchanger 12, and the heat exchanger 12 is connected with a one-network water return pipe 15.
The room temperature regulation and control device is realized by adopting PLC as hardware, the regulation and control device is realized by the PLC, an analog quantity output interface 2, a touch screen interface 3, an analog quantity setting interface 4, a room temperature acquisition system interface 5 and an external room temperature setting interface 18 are arranged on the room temperature regulation and control device 1, a corresponding touch screen 6 and a room temperature acquisition system 16 are arranged, a temperature regulator 32, a room temperature regulator, a room temperature correction signal retainer and a control signal retainer of an electric temperature control valve are arranged, and a room temperature regulation and control method is embedded into the PLC: calculating a temperature supply algorithm, a room temperature regulator algorithm and a temperature supply regulator algorithm. Setting a manual and automatic change-over switch in consideration of debugging requirements;
the touch screen connected with the PLC has the main functions:
(1) the collected data can be displayed and saved: supplying temperature by a second net, returning temperature by the second net, and measuring room temperature (from a room temperature measuring system);
(2) displaying and storing a thermostatic valve opening value fkd;
(3) displaying, setting and storing the setting parameters required by calculating the temperature: setting room temperature tnsz, an empirical coefficient k1, and a coefficient R;
(4) displaying, setting and storing the room temperature adjustment setting parameters: a room temperature adjusting coefficient k2, an index coefficient a and a room temperature correction period T1;
(5) displaying, setting and storing the temperature regulation setting parameters: a temperature supply regulating coefficient k3, a temperature supply accumulated coefficient k4, an exponential coefficient b, and a temperature supply control period T2;
(6) displaying intermediate variables needed in operation, such as the output n and m of a comparison link; and computing outputs tgb, tgj;
(7) a manual automatic change-over switch is added on the touch screen, and some display and switching functions which are convenient for debugging and running are added, for example, manual and automatic control of an electric temperature control valve is realized; as another example, the room temperature control regulator and the temperature supply regulator operate independently.
The analog output interface 2 controls the electric temperature control valve 13, the touch screen interface 3 is connected with the touch screen 6, the analog setting interface 4 receives the return water temperature supplied by the two networks, and the room temperature acquisition system interface 5 receives the average indoor measurement temperature signal of a building acquired by the room temperature system.
A method for directly regulating and controlling indoor temperature of a central heating heat exchange station comprises the following steps:
s1: after the heating system runs normally, whether the signals acquired by the regulating and controlling device are correct or not, whether the electric temperature control valve is controlled or not and whether the room temperature acquisition system can measure the room temperature or not are observed; firstly, a temperature supply regulator is started, a temperature supply value is manually set, a temperature supply regulating coefficient k3, a temperature supply accumulative coefficient k4, an exponential coefficient b and a temperature supply control period T2 are adjusted, and the temperature supply is controllable; then starting the automatic temperature supply calculation value, adjusting an empirical coefficient k1 and a coefficient R, and observing the room temperature control effect; finally, opening the room temperature regulator, adjusting the room temperature regulating coefficient k2, the index coefficient a and the room temperature correction period T1, and observing the room temperature control effect again;
s2: the two-network water supply calculated temperature is obtained according to the set indoor temperature and the indoor measured temperature, and the regulation and control of the room temperature of the controlled object are realized by two closed-loop feedbacks, one is room temperature closed-loop negative feedback, and the other is two-network temperature supply closed-loop negative feedback. The room temperature closed-loop feedback is used for regulating and controlling room temperature, and the two-network temperature supply closed-loop negative feedback is used for regulating and controlling the two-network water supply temperature; setting a room temperature and a measured room temperature, comparing to form a room temperature deviation, and continuously outputting a room temperature correction signal through a room temperature correction regulator; when the room temperature correction period T1 arrives, the room temperature correction signal is held in the holder;
as shown in fig. 2, after the room temperature is given and measured, the temperature supply calculation module is set, the calculated temperature supply of the second network can be obtained; calculating the temperature supplied by the second network, adding the room temperature correction signal, comparing the temperature with the actual temperature supplied by the second network, and outputting the temperature supply deviation; the temperature supply deviation is set to the temperature supply regulator to obtain a control signal required by the temperature control valve, and then when a periodic signal T2 arrives, the signal of the temperature control valve is output to the electric temperature control valve signal retainer;
the algorithm for calculating the temperature supply is as follows:
setting room temperature tnsz and measuring room temperature tns to obtain a calculated room temperature tnj ═ R ═ tnsz-tns, a calculated temperature supply tgj ═ k1 ═ tnj, k1 is an empirical coefficient, the value range is 1.8-3, R is a setting coefficient, and the value range is 1-4;
the room temperature regulator algorithm is as follows:
when T1 is 1, tgb is k2m ^ a
When T1 is 0, tgb is tgb
tgb is the room temperature correction signal; outputting m ═ tnsz-tns in a comparison link; k2 is a room temperature adjustment coefficient, and the value range is 1-3; a is an index coefficient, and the value range is 1-3; t1 is a room temperature correction period, and the value range is 0.5 h-5 h;
the temperature regulator algorithm is as follows:
when T2 is 1, Fkd is k3n b + k4 Σ n
When T2 is 0, Fkd is Fkd
Fkd is a thermostatic valve position; comparing the link output n-tgj + tgb-tgs; tgs is actual two-wire heating; k3 is a temperature supply regulating coefficient, and the value range is 1-5; k4 is a temperature supply accumulated coefficient, and the value range is 0.1-2; the value range of the index coefficient b is 1-3; t2 is a control period, the value range is 1 min-15 min, and the temperature supply control period T2 is required to be less than the room temperature correction period T1;
s3: obtaining the valve position opening degree of the one-network electric temperature control valve according to the calculated temperature of the two-network water supply and the actual water supply temperature;
s4: at every interval period T2, the temperature of the water supplied by the second network is regulated and controlled in a way that the flow of the first network is controlled by a temperature control valve;
s5: and correcting the regulated room temperature at intervals of T1 according to the difference between the set room temperature and the indoor measured temperature acquired by the room temperature acquisition system.
The more room temperature collection points, the better, but at least one room temperature collection point is needed, and an electric temperature control valve for controlling the water quantity at the primary side of the heat exchanger is also needed.
The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements are also considered to be within the scope of the present invention.
Claims (5)
1. The operation method of the indoor temperature direct regulation and control system of the central heating heat exchange station is characterized in that the indoor temperature direct regulation and control system of the central heating heat exchange station comprises a room temperature regulation and control device, a water supply pipe, a water return pipe, a sensor, a temperature control valve, a heat exchanger and a circulating pump, wherein the water supply pipe comprises a first water supply pipe and a second water supply pipe, the water return pipe comprises a first water return pipe and a second water return pipe, the first water supply pipe is connected with an electric temperature control valve, the electric temperature control valve is connected with the heat exchanger, the heat exchanger is connected with the second water supply pipe, the second water supply pipe is connected with a second water supply temperature sensor, the tail end of the second water supply pipe is connected with a heat consumer, the heat consumer is connected with the second water return pipe, the second water return temperature sensor and the second circulating pump are connected with the second water return pipe, and the heat exchanger is connected with the first water return pipe;
the room temperature regulating device is provided with an analog quantity output interface, a touch screen interface, an analog quantity setting interface, a room temperature acquisition system interface and an external room temperature setting interface, is provided with a corresponding touch screen and a room temperature acquisition system, and is provided with a temperature regulator, a room temperature correction signal retainer and an electric temperature control valve control signal retainer, and the room temperature regulating device is embedded with a regulating algorithm to regulate and control the temperature of the two-network water supply in a mode of controlling the flow of the primary side of the heat exchanger so as to regulate and control the indoor temperature;
the touch screen is used for displaying, setting and storing the opening value fkd of the temperature control valve, calculating the setting parameters required by temperature supply, the room temperature adjustment setting parameters, the temperature supply adjustment setting parameters and some intermediate variables required in operation; a manual automatic change-over switch is added on the touch screen;
the method of operation comprises the steps of:
s1: after the heating system runs normally, whether the signals acquired by the regulating and controlling device are correct or not, whether the electric temperature control valve is controlled or not and whether the room temperature acquisition system can measure the room temperature or not are observed; firstly, a temperature supply regulator is started, a temperature supply value is manually set, a temperature supply regulating coefficient k3, a temperature supply accumulative coefficient k4, an exponential coefficient b and a temperature supply control period T2 are adjusted, and the temperature supply is controllable; then starting the automatic temperature supply calculation value, adjusting an empirical coefficient k1 and a coefficient R, and observing the room temperature control effect; finally, opening the room temperature regulator, adjusting the room temperature regulating coefficient k2, the index coefficient a and the room temperature correction period T1, and observing the room temperature control effect again;
s2: obtaining a two-network water supply calculated temperature according to the set indoor temperature and the indoor measured temperature, wherein the regulation and control of the room temperature of the controlled object are realized by two closed-loop feedbacks, one is room temperature closed-loop negative feedback, and the other is two-network temperature supply closed-loop negative feedback;
the room temperature closed-loop feedback is used for regulating and controlling room temperature, and the two-network temperature supply closed-loop negative feedback is used for regulating and controlling the two-network water supply temperature; setting a room temperature and a measured room temperature, comparing to form a room temperature deviation, continuing room temperature correction, and outputting a room temperature correction signal by an adjuster; when the room temperature correction period T1 arrives, the room temperature correction signal is held in the holder;
after the room temperature is given and measured, a temperature supply calculation module is arranged, and the calculated two-network temperature supply can be obtained; calculating the temperature supplied by the second network, adding the room temperature correction signal, comparing the temperature with the actual temperature supplied by the second network, and outputting the temperature supply deviation; the temperature supply deviation is set to the temperature supply regulator to obtain a control signal required by the temperature control valve, and then when a periodic signal T2 arrives, the signal of the temperature control valve is output to the electric temperature control valve signal retainer;
the algorithm for calculating the temperature supply is as follows:
from the set room temperature tnsz and the measured room temperature tns, a calculated room temperature tnj ═ R × tnsz-tns, a calculated temperature tgj ═ k1 ×. tnj, k1 being empirical coefficients, R being a set coefficient, can be obtained;
the room temperature regulator algorithm is as follows:
when T1 is 1, tgb is k2m ^ a
When T1 is 0, tgb is tgb
tgb is the room temperature correction signal; outputting m ═ tnsz-tns in a comparison link; k2 is a room temperature adjustment coefficient, a is an index coefficient, and T1 is a room temperature correction period;
the temperature regulator algorithm is as follows:
when T2 is 1, Fkd is k3n b + k4 Σ n
When T2 is 0, Fkd is Fkd
Fkd is a thermostatic valve position; comparing the link output n-tgj + tgb-tgs; tgs is actual two-wire heating; k3 is a temperature regulating coefficient, k4 is a temperature accumulating coefficient, b is an index coefficient, and T2 is a temperature control period; the required temperature supply control period T2 should be less than the room temperature correction period T1;
s3: obtaining the valve position opening degree of the one-network electric temperature control valve according to the calculated temperature of the two-network water supply and the actual water supply temperature;
s4: at every interval period T2, the temperature of the water supplied by the second network is regulated and controlled in a way that the flow of the first network is controlled by a temperature control valve;
s5: and correcting the regulated room temperature at intervals of T1 according to the difference between the set room temperature and the indoor measured temperature acquired by the room temperature acquisition system.
2. The method of operating of claim 1, wherein at least one room temperature collection point.
3. The operating method according to claim 1, wherein k1 is in the range of 1.8 to 3 and R is in the range of 1 to 4.
4. The operating method according to claim 1, wherein k2 is in the range of 1 to 3, a is in the range of 1 to 3, and T1 is in the range of 0.5 to 5 hours.
5. The operating method according to claim 1, wherein k3 is in the range of 1 to 5, k4 is in the range of 0.1 to 2, b is in the range of 1 to 3, and T2 is in the range of 1 to 15 min.
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| WO2015066831A1 (en) * | 2013-11-08 | 2015-05-14 | 清华大学 | Combined heat exchanger set |
| CN104390253B (en) * | 2014-10-27 | 2018-09-11 | 朱杰 | The control method of central heating system based on flow independent type radiator end |
| CN105953301A (en) * | 2016-05-12 | 2016-09-21 | 南京恒星自动化设备有限公司 | Urban central heating energy-saving system and regulation method thereof |
| CN206890664U (en) * | 2017-05-23 | 2018-01-16 | 辽宁地质工程职业学院 | A kind of network central heating device |
| CN107120721B (en) * | 2017-05-25 | 2019-08-09 | 石家庄华浩能源科技有限公司 | A kind of central heating dynamic gas candidate compensation method |
| CN108105844B (en) * | 2017-12-20 | 2019-12-17 | 沈阳久沃能源科技有限公司 | Intelligent heat exchange station control method based on indoor and outdoor temperature combined compensation |
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