CN113310107A - Secondary side temperature control framework and method for heating system of heat exchange station - Google Patents
Secondary side temperature control framework and method for heating system of heat exchange station Download PDFInfo
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- CN113310107A CN113310107A CN202110534229.3A CN202110534229A CN113310107A CN 113310107 A CN113310107 A CN 113310107A CN 202110534229 A CN202110534229 A CN 202110534229A CN 113310107 A CN113310107 A CN 113310107A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 230000001105 regulatory effect Effects 0.000 claims abstract description 50
- 230000001276 controlling effect Effects 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 10
- 239000008400 supply water Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0271—Valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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Abstract
A first temperature parameter input end and a second temperature parameter input end of a double-input single-output temperature controller are respectively and correspondingly connected with a secondary side water supply temperature transmitter arranged on a secondary side water supply main pipe and a secondary side return water temperature transmitter arranged on a secondary side return water main pipe, and a control instruction output end of the double-input single-output temperature controller is respectively connected with each controlled electric regulating valve arranged on each primary side return water branch pipe, so that the opening degree and the angular speed of the electric regulating valve are regulated based on the secondary side water supply and return water temperature difference deviation and the temperature difference change rate, and the purpose of regulating the secondary side water supply and return temperature of a heating system of a heat exchange station is further achieved.
Description
Technical Field
The invention relates to a secondary side temperature control technology of a heating system of a heat exchange station, in particular to a secondary side temperature control framework and a method of the heating system of the heat exchange station.
Background
The heat exchange station has prominent position in the centralized heating of cities and towns and plays a decisive role in the heating high-quality operation of the whole heating system. The secondary side of the heating system of the heat exchange station directly determines the heat quality of heat users. The inventor finds that under the current technical condition, the control of a heating system of a heat exchange station mostly depends on manual control of field operation and maintenance personnel, the automatic control also mostly stays in the fixed value control and the time interval control of the secondary water supply temperature, the control precision is low, the phenomena of low thermal efficiency and poor heat supply quality of the heating system of the heat exchange station are caused, and the phenomena of low satisfaction degree of heat users and serious energy waste are directly caused. Therefore, a novel control method is urgently needed for a heating system of the heat exchange station to replace the existing methods of manual control, fixed value control and time interval control, so that the temperature difference between the secondary side water supply and the secondary side water return can be adjusted in real time according to the change of the heat load of a user, the problems are solved, the heat supply quality is ensured, and the energy consumption is reduced.
Disclosure of Invention
The invention provides a secondary side temperature control framework and a method of a heat exchange station heating system aiming at the defects or shortcomings in the prior art, a first temperature parameter input end and a second temperature parameter input end of a double-input single-output temperature controller are respectively and correspondingly connected with a secondary side water supply temperature transmitter arranged on a secondary side water supply main pipe and a secondary side return water temperature transmitter arranged on a secondary side return water main pipe, and a control instruction output end of the double-input single-output temperature controller is respectively connected with each controlled electric regulating valve arranged on each primary side return water branch pipe, so that the opening degree and the angular speed of the electric regulating valve can be regulated based on the secondary side water supply and return temperature difference deviation and the temperature difference change rate, and the purpose of regulating the secondary side water supply and return temperature of the heat exchange station heating system is further achieved.
The technical solution of the invention is as follows:
the utility model provides a heat transfer station heating system secondary side temperature control framework, its characterized in that, is including attaching the dual input single output temperature controller who locates heat transfer station heating system, the secondary side water supply temperature transmitter that sets up on the secondary side water supply main is connected to the first temperature parameter input of dual input single output temperature controller, the secondary side return water temperature transmitter that sets up on the secondary side return water main is connected to the second temperature parameter input of dual input single output temperature controller, the control instruction output connection of dual input single output temperature controller sets up the electrical control valve on the primary side return water pipeline.
The primary side water return pipeline comprises a primary side water return first branch pipe and a primary side water return second branch pipe which are respectively connected with the primary side water return main pipe, the electric regulating valve comprises a primary side water return first electric regulating valve and a primary side water return second electric regulating valve, the primary side water return first electric regulating valve is arranged on the primary side water return first branch pipe, and the primary side water return second electric regulating valve is arranged on the primary side water return second branch pipe.
The heating system of the heat exchange station comprises a first plate type heat exchanger and a second plate type heat exchanger, a primary side water supply end of the first plate type heat exchanger is connected with a primary side water supply header pipe through a fifth valve, a primary side water supply end of the second plate type heat exchanger is connected with the primary side water supply header pipe through a sixth valve, a primary side water return end of the first plate type heat exchanger is connected with a primary side water return header pipe through a primary side water return second electric regulating valve, and a primary side water return end of the second plate type heat exchanger is connected with the primary side water return header pipe through a primary side water return first electric regulating valve.
The secondary side water supply end of the first plate type heat exchanger is connected with a secondary side water supply header through a second valve, the secondary side water supply end of the second plate type heat exchanger is connected with the secondary side water supply header through a fourth valve, the secondary side water return end of the first plate type heat exchanger is connected with a secondary side water return header through a first valve, and the secondary side water return end of the second plate type heat exchanger is connected with the secondary side water return header through a third valve.
And a heat user heater group is arranged between the secondary side water supply main pipe and the secondary side water return main pipe, a main inlet of the heat user heater group is connected with the secondary side water supply main pipe, and a main outlet of the heat user heater group is connected with the secondary side water return main pipe.
And a wireless signal transceiver is arranged on the double-input single-output temperature controller.
Be provided with touch-control formula display screen on dual input single output temperature controller's the operating surface, the side of touch-control formula display screen is provided with mechanical button, mechanical button includes that difference in temperature numerical value sets for mechanical button, and difference in temperature change rate numerical value sets for mechanical button, and mechanical button is set for to valve opening numerical value to and the enter key.
The method for controlling the secondary side temperature of the heating system of the heat exchange station is characterized in that the secondary side temperature control framework of the heating system of the heat exchange station is adopted, and the secondary side supply and return water temperature of the heating system of the heat exchange station is adjusted by adjusting the opening degree and/or the angular speed of an electric adjusting valve based on the secondary side supply and return water temperature difference deviation and the temperature difference change rate.
The method comprises the following steps: step 1, a double-input single-output temperature controller enables a first temperature parameter T from a secondary side water supply main pipeoutSubtracting a second temperature parameter T from a secondary side return water manifoldinObtaining the measured value T of the temperature difference of the secondary side water supply and return waterreality＝Tout-Tin(ii) a Step 2, the double-input single-output temperature controller utilizes a preset secondary side supply and return water temperature difference standard difference value TsetObtaining the temperature difference deviation E of secondary side water supply and return water as Treality-Tset(ii) a Step 3, simulating a functional formula E ═ E (t) by using discrete points of E changing along with time t; step 4, utilizing the E value at a certain moment and simultaneously calculating the secondary side water supply and return temperature difference change rate EC (de/dt), and according to the E value and the EC value and the internal control logic of the double-input single-output temperature controllerAnd comparing and judging to obtain a control instruction, and controlling the opening and/or the angular speed of the electric regulating valve on the primary side water return pipeline.
The opening degree and/or the angular velocity of the electric regulating valve determine the flow of the primary side backwater, and the flow of the primary side backwater is equal to the flow of the primary side water supply.
The invention has the following technical effects: according to the secondary side temperature control framework and method for the heating system of the heat exchange station, the secondary side temperature difference of the heating system of the heat exchange station is controlled, so that the temperature difference between the water supply and the water return of the secondary side can be adjusted in real time according to the change of the heat load of a user, the heat supply quality is guaranteed, the satisfaction degree of the heat user is improved, and the energy consumption is reduced.
Compared with the prior art, the invention has the following advantages: 1. the control method of the invention replaces the existing single control methods such as manual control, secondary water supply temperature constant value control and time interval control, and can improve the intelligent degree of control of the heating system of the heat exchange station, improve the heat supply efficiency, improve the heat experience of heat users and improve the satisfaction degree of the heat users. 2. The control method of the invention adopts two input parameters of temperature difference and temperature difference change rate, improves the control sensitivity, can adjust the temperature difference of the secondary side water supply and return water of the heating system of the heat exchange station in real time according to the change of the heat load of a user, ensures the heat supply quality and reduces the energy consumption. 3. The invention has clear control structure, simple control structure, easy implementation and convenient popularization.
Drawings
Fig. 1 is a schematic structural diagram of a secondary side temperature control architecture of a heating system of a heat exchange station according to the present invention.
Fig. 2 is a schematic diagram of the structure of the dual-input single-output temperature controller in fig. 1.
The reference numbers in the figures are listed below: 1-secondary side water supply temperature transmitter (which may be labeled as TT 211); 2-secondary side return water temperature transmitter (which may be labeled as TT 212); 3-a double-input single-output temperature controller; 4-primary side return water first electrically actuated regulator valve (which may be labeled as TCV 114); 5-primary side return water second electric regulating valve (may be labeled as TCV 112); 6-primary side water supply main; 7-primary side water return header pipe; 8-a first plate heat exchanger; 9-a second plate heat exchanger; 10-group of heat users; 11-secondary side water supply main; 12-secondary side water return main pipe; 13-a second temperature parameter input; 14-a first temperature parameter input; 15-control command output; 16-a first valve; 17-a second valve; 18-a third valve; 19-a fourth valve; 20-a fifth valve; 21-a sixth valve; 22-a wireless signal transceiver; 23-touch display screen; 24-mechanical keys; e-setting a mechanical key by using a temperature difference value; EC-temperature difference change rate value setting mechanical key; setting a mechanical key by using a numerical value of the opening of the U-valve; OK-OK key.
Detailed Description
The invention is described below with reference to the accompanying drawings (fig. 1-2).
Fig. 1 is a schematic structural diagram of a secondary side temperature control architecture of a heating system of a heat exchange station according to the present invention. Fig. 2 is a schematic diagram of the structure of the dual-input single-output temperature controller in fig. 1. Referring to fig. 1 and 2, a secondary side temperature control architecture of a heating system in a heat exchange station includes a dual-input single-output temperature controller 3 attached to the heating system in the heat exchange station, a first temperature parameter input end 14 of the dual-input single-output temperature controller 3 is connected to a secondary side water supply temperature transmitter 1 arranged on a secondary side water supply main pipe 11, a second temperature parameter input end 13 of the dual-input single-output temperature controller 3 is connected to a secondary side return water temperature transmitter 2 arranged on a secondary side return water main pipe 12, and a control instruction output end 15 of the dual-input single-output temperature controller 3 is connected to an electric control valve arranged on a primary side return water pipeline. The primary side water return pipeline comprises a primary side water return first branch pipe and a primary side water return second branch pipe which are respectively connected with a primary side water return main pipe 7, the electric regulating valve comprises a primary side water return first electric regulating valve 4 and a primary side water return second electric regulating valve 5, the primary side water return first electric regulating valve 4 is arranged on the primary side water return first branch pipe, and the primary side water return second electric regulating valve 5 is arranged on the primary side water return second branch pipe.
The heating system of the heat exchange station comprises a first plate heat exchanger 8 and a second plate heat exchanger 9, a primary side water supply end of the first plate heat exchanger 8 is connected with a primary side water supply header pipe 6 through a fifth valve 20, a primary side water supply end of the second plate heat exchanger 9 is connected with the primary side water supply header pipe 6 through a sixth valve 21, a primary side water return end of the first plate heat exchanger 8 is connected with a primary side water return header pipe 7 through a primary side water return second electric regulating valve 5, and a primary side water return end of the second plate heat exchanger 9 is connected with the primary side water return header pipe 7 through a primary side water return first electric regulating valve 4. The secondary side water supply end of the first plate type heat exchanger 8 is connected with a secondary side water supply header 11 through a second valve 17, the secondary side water supply end of the second plate type heat exchanger 9 is connected with the secondary side water supply header 11 through a fourth valve 19, the secondary side water return end of the first plate type heat exchanger 8 is connected with a secondary side water return header 12 through a first valve 16, and the secondary side water return end of the second plate type heat exchanger 9 is connected with the secondary side water return header 12 through a third valve 18. A heat user heater group 10 is arranged between the secondary side water supply main pipe 11 and the secondary side water return main pipe 12, a total inlet of the heat user heater group 10 is connected with the secondary side water supply main pipe 11, and a total outlet of the heat user heater group 10 is connected with the secondary side water return main pipe 12. The dual-input single-output temperature controller 3 is provided with a wireless signal transceiver 22. Be provided with touch-control formula display screen 23 on the operating surface of dual input single output temperature controller 3, the side of touch-control formula display screen 23 is provided with mechanical button 24, mechanical button 24 includes that the difference in temperature numerical value sets for mechanical button E, and the difference in temperature rate of change numerical value sets for mechanical button EC, and valve opening numerical value sets for mechanical button U to and the enter key OK.
A secondary side temperature control method of a heat exchange station heating system is adopted, and the secondary side temperature control framework of the heat exchange station heating system is adopted, and the secondary side supply and return water temperature of the heat exchange station heating system is adjusted by adjusting the opening degree and/or the angular speed of an electric adjusting valve based on the secondary side supply and return water temperature difference deviation and the temperature difference change rate. The method comprises the following steps: step 1, a double-input single-output temperature controller enables a first temperature parameter T from a secondary side water supply main pipeoutSubtracting a second temperature parameter T from a secondary side return water manifoldinObtaining the measured value T of the temperature difference of the secondary side water supply and return waterreality＝Tout-Tin(ii) a Step 2, the double-input single-output temperature controller utilizes a preset secondary side supply and return water temperature difference standard difference value TsetObtaining the temperature difference deviation E of secondary side water supply and return water as Treality-Tset(ii) a Step 3, simulating a functional formula E ═ E (t) by using discrete points of E changing along with time t; and 4, simultaneously calculating the change rate EC of the secondary side water supply and return temperature difference as de/dt by using the E value at a certain moment, comparing and judging the E value and the EC value with the internal control logic of the double-input single-output temperature controller to obtain a control instruction, and controlling the opening degree and the angular speed of the electric regulating valve on the primary side water return pipeline. The opening degree and/or the angular velocity of the electric regulating valve determine the flow of the primary side backwater, and the flow of the primary side backwater is equal to the flow of the primary side water supply.
The invention relates to the technical field of automatic control of a heating system of a heat exchange station, in particular to a secondary side temperature control method of the heating system of the heat exchange station.
In order to achieve the purpose, the invention provides the following technical scheme: the system comprises a water supply temperature transmitter on the secondary side of a heating system, a return water temperature transmitter on the secondary side of the heating system, a double-input single-output temperature controller, a primary side return water 1# electric regulating valve and a primary side return water 2# electric regulating valve. 1. The water supply temperature transmitter of the heating system secondary side is arranged on the water supply header pipe of the heating system secondary side of the heat exchange station; 2. a backwater temperature transmitter at the secondary side of the heating system is arranged on a backwater header pipe at the secondary side of the heating system of the heat exchange station; 3. the double-input single-output temperature controller is arranged in the heat exchange station and can meet the requirements of industrial places; 4. the primary side backwater 1# electric regulating valve is arranged on a backwater pipe at the primary side of a heating system of the heat exchange station; 5. and the primary side backwater 2# electric regulating valve is arranged on a primary side backwater pipe of a heating system of the heat exchange station.
Referring to fig. 1, an embodiment of the present invention: a method for controlling the secondary side temperature of a heating system of a heat exchange station is disclosed, wherein a diagram 1 is a secondary side temperature control architecture diagram of the heating system of the heat exchange station, and comprises a secondary side water supply temperature transmitter 1 of the heating system, which is arranged on a secondary side water supply header of the heating system and plays a role in measuring the temperature of the secondary side water supply header of the heating system in real time; the heating system secondary side return water temperature transmitter 2 is arranged on a heating system secondary side return water header pipe and plays a role in measuring the temperature of the heating system secondary side return water header pipe in real time; the double-input single-output temperature controller 3 can analyze and judge the temperature data acquired in real time and send out an output signal for controlling the electric regulating valve; a primary side backwater 1# electric regulating valve (a primary side backwater first electric regulating valve 4) is arranged on a primary side backwater pipe of the heating system and plays a role in controlling the flow of the primary side backwater pipe of the heating system; the primary side backwater 1# electric regulating valve (primary side backwater second electric regulating valve 5) is installed on a primary side backwater pipe of the heating system and plays a role in controlling the flow of the primary side backwater pipe of the heating system.
The method comprises the following specific control steps:
step 1, a water supply temperature transmitter of a heating system secondary side is installed on a water supply header pipe of a heat exchange station heating system secondary side, and the water supply temperature T of the heat exchange station heating system secondary side is collected in real timeout(ii) a The backwater temperature transmitter of the heating system secondary side is arranged on a backwater header pipe of the heat exchange station heating system secondary side, and collects the backwater temperature T of the heat exchange station heating system secondary side in real timein(ii) a Thus, the measured value of the temperature difference between the secondary water supply and the return water of the heating system of the heat exchange station can be Treality＝Tout-Tin。
And 3, installing a double-input single-output temperature controller 3 in the heat exchange station, reading temperature values of a water supply temperature transmitter 1 on the secondary side of the heating system and a return water temperature transmitter 2 on the secondary side of the heating system, and calculating to obtain a measured value T of the temperature difference between the secondary supply water and the return water of the heating system of the heat exchange stationreality. An operator can input a standard difference value T of temperature difference between secondary side supply and return water of the heating system into the double-input single-output temperature controller 3set. The dual-input single-output temperature controller 3 can control the primary side water return 1# electric regulating valve and the primary side water return 2# electric regulating valve.
The method for controlling the secondary side temperature of the heating system of the heat exchange station comprises a water supply temperature transmitter of the secondary side of the heating system, a return water temperature transmitter of the secondary side of the heating system, a double-input single-output temperature controller, a primary side return water 1# electric regulating valve and a primary side return water 2# electric regulating valve. The method for controlling the secondary side temperature of the heating system of the heat exchange station is suitable for controlling the heating system of the heat exchange station, can adjust the temperature difference between water supply and water return of the secondary side of the heating system in real time according to the change of the heat load of a user, ensures the heat supply quality, reduces the energy consumption, can improve the control intellectualization degree of the heating system of the heat exchange station, improves the heat supply efficiency, improves the heat consumption experience of heat users and improves the satisfaction degree of the heat users.
Those skilled in the art will appreciate that the invention may be practiced without these specific details. It is pointed out here that the above description is helpful for the person skilled in the art to understand the invention, but does not limit the scope of protection of the invention. Any such equivalents, modifications and/or omissions as may be made without departing from the spirit and scope of the invention may be resorted to.
Claims (10)
1. The utility model provides a heat transfer station heating system secondary side temperature control framework, its characterized in that, is including attaching the dual input single output temperature controller who locates heat transfer station heating system, the secondary side water supply temperature transmitter that sets up on the secondary side water supply main is connected to the first temperature parameter input of dual input single output temperature controller, the secondary side return water temperature transmitter that sets up on the secondary side return water main is connected to the second temperature parameter input of dual input single output temperature controller, the control instruction output connection of dual input single output temperature controller sets up the electrical control valve on the primary side return water pipeline.
2. The secondary-side temperature control architecture for a heating system of a heat exchange station according to claim 1, wherein the primary-side water return pipeline includes a primary-side water return first branch and a primary-side water return second branch connected to a primary-side water return manifold, respectively, and the electric control valves include a primary-side water return first electric control valve and a primary-side water return second electric control valve, the primary-side water return first electric control valve being disposed on the primary-side water return first branch, and the primary-side water return second electric control valve being disposed on the primary-side water return second branch.
3. The secondary-side temperature control architecture of a heat exchange station heating system according to claim 1, wherein the heat exchange station heating system includes a first plate heat exchanger and a second plate heat exchanger, a primary-side water supply end of the first plate heat exchanger is connected to a primary-side water supply header through a fifth valve, a primary-side water supply end of the second plate heat exchanger is connected to the primary-side water supply header through a sixth valve, a primary-side water return end of the first plate heat exchanger is connected to a primary-side water return header through a primary-side water return second electric regulating valve, and a primary-side water return end of the second plate heat exchanger is connected to the primary-side water return header through a primary-side water return first electric regulating valve.
4. The secondary side temperature control architecture of the heating system of the heat exchange station according to claim 3, wherein the secondary side water supply end of the first plate heat exchanger is connected to a secondary side water supply header through a second valve, the secondary side water supply end of the second plate heat exchanger is connected to the secondary side water supply header through a fourth valve, the secondary side water return end of the first plate heat exchanger is connected to a secondary side water return header through a first valve, and the secondary side water return end of the second plate heat exchanger is connected to the secondary side water return header through a third valve.
5. The secondary side temperature control architecture of a heating system of a heat exchange station according to claim 4, wherein a group of heat users is arranged between the secondary side water supply header and the secondary side water return header, a total inlet of the group of heat users is connected with the secondary side water supply header, and a total outlet of the group of heat users is connected with the secondary side water return header.
6. The secondary side temperature control architecture of a heating system of a heat exchange station according to claim 1, wherein a wireless signal transceiver is disposed on the dual-input single-output temperature controller.
7. The secondary side temperature control architecture of a heat exchange station heating system according to claim 1, wherein a touch display screen is arranged on an operation surface of the dual-input single-output temperature controller, mechanical keys are arranged on a side of the touch display screen, and the mechanical keys include a temperature difference value setting mechanical key, a temperature difference change rate value setting mechanical key, a valve opening value setting mechanical key, and an enter key.
8. A method for controlling the secondary side temperature of a heating system in a heat exchange station, comprising adjusting the secondary side supply and return water temperature of the heating system in the heat exchange station by adjusting the opening and/or angular velocity of an electric control valve based on the deviation of the secondary side supply and return water temperature difference and the rate of change of the temperature difference, according to the secondary side temperature control architecture of the heating system in the heat exchange station of claims 1 to 7.
9. The method for controlling the secondary side temperature of the heating system of the heat exchange station according to claim 8, comprising the steps of: step 1, a double-input single-output temperature controller enables a first temperature parameter T from a secondary side water supply main pipeoutSubtracting a second temperature parameter T from a secondary side return water manifoldinObtaining the measured value T of the temperature difference of the secondary side water supply and return waterreality＝Tout-Tin(ii) a Step 2, the double-input single-output temperature controller utilizes a preset secondary side supply and return water temperature difference standard difference value TsetObtaining the temperature difference deviation E of secondary side water supply and return water as Treality-Tset(ii) a Step 3, simulating a functional formula E ═ E (t) by using discrete points of E changing along with time t; and 4, simultaneously calculating the change rate EC of the secondary side water supply and return temperature difference as de/dt by using the E value at a certain moment, comparing and judging the E value and the EC value with the internal control logic of the double-input single-output temperature controller to obtain a control instruction, and controlling the opening degree and/or the angular speed of the electric regulating valve on the primary side water return pipeline.
10. The method according to claim 8, wherein the opening and/or angular velocity of the electric control valve determines a flow rate of the primary-side return water, and the flow rate of the primary-side return water is equal to a flow rate of the primary-side supply water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110534229.3A CN113310107A (en) | 2021-05-17 | 2021-05-17 | Secondary side temperature control framework and method for heating system of heat exchange station |
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| CN202110534229.3A CN113310107A (en) | 2021-05-17 | 2021-05-17 | Secondary side temperature control framework and method for heating system of heat exchange station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625156A (en) * | 2023-06-05 | 2023-08-22 | 上海能誉科技股份有限公司 | Heat exchange unit |
| CN117167804A (en) * | 2023-11-03 | 2023-12-05 | 山东科翔物联网有限公司 | Constant temperature control system of heating and ventilation equipment and control method thereof |
-
2021
- 2021-05-17 CN CN202110534229.3A patent/CN113310107A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625156A (en) * | 2023-06-05 | 2023-08-22 | 上海能誉科技股份有限公司 | Heat exchange unit |
| CN117167804A (en) * | 2023-11-03 | 2023-12-05 | 山东科翔物联网有限公司 | Constant temperature control system of heating and ventilation equipment and control method thereof |
| CN117167804B (en) * | 2023-11-03 | 2024-01-16 | 山东科翔物联网有限公司 | Constant temperature control system of heating and ventilation equipment and control method thereof |
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