CN102927622A - Heat supply regulating device - Google Patents
Heat supply regulating device Download PDFInfo
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- CN102927622A CN102927622A CN2012104954452A CN201210495445A CN102927622A CN 102927622 A CN102927622 A CN 102927622A CN 2012104954452 A CN2012104954452 A CN 2012104954452A CN 201210495445 A CN201210495445 A CN 201210495445A CN 102927622 A CN102927622 A CN 102927622A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 189
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 16
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- 238000010586 diagram Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
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Abstract
The invention provides a heat supply regulating device which comprises a heat exchanger, a water supply temperature sensor, a return water temperature sensor, an outdoor temperature sensor, a controller, an operation and display interface and a frequency changer, wherein heat source water or steam from a heat source enters a water inlet end on a primary side of the heat exchanger after passing through a stop valve and an electronic adjusting valve sequentially; a water outlet end on the primary side of the heat exchanger is directly communicated with the heat source; the electronic adjusting valve, the operation and display interface, the frequency changer, the water supply temperature sensor, the return water temperature sensor and the outdoor temperature sensor are all connected with the controller; and water inlet end on a secondary side of the heat exchanger is connected with a hot water pipe network through a circulation pump group; and a water outlet end on the secondary side of the heat exchanger is directly communicated with the hot water pipie network. The heat supply regulating device has the characteristics of saving energy, keeping a heat supply area environment comfortable and the like, and can be applied to a heat supply system widely.
Description
Technical Field
The invention relates to a heating technology, in particular to a heating regulation and control device.
Background
At present, the selection and matching of heating equipment similar to a heat exchange station or a boiler room area are determined based on the average lowest temperature of the area over the years. However, in real life, the ambient temperature changes from moment to moment, for example, today's temperature is different from yesterday's temperature, and the temperatures at different moments on the same day are different; thus, district heating equipment operating under the same parameters inevitably generates energy waste, and simultaneously generates an uncomfortable condition of overheating or overcooling in the heating area.
Therefore, in the prior art, the heating equipment has the problems of energy waste, discomfort of the heating area environment and the like.
Disclosure of Invention
In view of the above, the present invention is directed to a heating control device that can save energy and ensure a comfortable heating area environment.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a heating regulation device comprising: the system comprises a heat exchanger for carrying out heat exchange on hot source water or steam serving as primary water and hot water in a hot water user pipe network serving as secondary water, a water supply temperature sensor for sending the measured real-time water supply temperature of a water outlet end of a secondary side of the heat exchanger to a controller, a return water temperature sensor for sending the measured real-time return water temperature of a water inlet end of the secondary side of the heat exchanger to the controller, an outdoor temperature sensor for sending the measured real-time outdoor temperature to the controller, a controller for controlling the water inlet amount of the primary water and a frequency converter of the heat exchanger according to the real-time water supply temperature sent by the water supply temperature sensor, the real-time return water temperature sent by the return water temperature sensor, the real-time outdoor temperature sent by the outdoor temperature sensor and the relation between the standard water supply and return water temperature difference and the outdoor temperature stored by the controller, and a, The frequency converter is used for inputting parameters and displaying an operation and display interface of the parameters of the controller and regulating and controlling the secondary water inflow of the heat exchanger under the control of the controller; wherein,
heat source water or steam from a heat source sequentially passes through the stop valve and the electric regulating valve to enter the primary side water inlet end of the heat exchanger, and the primary side water outlet end of the heat exchanger is directly communicated with the heat source; the electric regulating valve, the operation and display interface, the frequency converter, the water supply temperature sensor, the water return temperature sensor and the outdoor temperature sensor are all connected with the controller; the water inlet end of the secondary side of the heat exchanger is connected with a hot water pipe network through a circulating pump set, and the water outlet end of the secondary side of the heat exchanger is directly communicated with the hot water pipe network.
In summary, the heat supply control device of the present invention realizes heat exchange between external heat source water or steam and hot water in the hot water pipe network according to the difference between the real-time supply and return water temperature difference and the standard supply and return water temperature difference under the action of the controller, and the hot water in the hot water pipe network absorbs heat and then is further heated for use by hot water users. Therefore, the invention fully utilizes external energy and plays a role in preventing energy waste. The invention also adjusts the running state of the circulating pump set under the action of the controller according to the relation between the real-time water supply and return temperature difference and the standard water supply and return temperature difference, for example, the circulating pump set runs under the condition of smaller heat required by a user under the condition of smaller load. Therefore, the invention further realizes energy saving and keeps the comfort level of the heating area environment.
Drawings
Fig. 1 is a schematic diagram of the overall composition structure of the heating regulation device of the present invention.
Fig. 2 is a schematic structural diagram of the controller according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of the overall composition structure of the heating regulation device of the present invention. As shown in fig. 1, the heating regulation and control device of the present invention includes: the system comprises a heat exchanger for carrying out heat exchange on hot source water or steam serving as primary water and hot water in a hot water user pipe network serving as secondary water, a water supply temperature sensor for sending the measured real-time water supply temperature of a water outlet end of a secondary side of the heat exchanger to a controller, a return water temperature sensor for sending the measured real-time return water temperature of a water inlet end of the secondary side of the heat exchanger to the controller, an outdoor temperature sensor for sending the measured real-time outdoor temperature to the controller, a controller for controlling the water inlet amount of the primary water and a frequency converter of the heat exchanger according to the real-time water supply temperature sent by the water supply temperature sensor, the real-time return water temperature sent by the return water temperature sensor, the real-time outdoor temperature sent by the outdoor temperature sensor and the relation between the standard water supply and return water temperature difference and the outdoor temperature stored by the controller, and a, A display interface for inputting parameters and displaying the operation of the parameters of the controller, and a frequency converter for regulating and controlling the secondary water inflow of the heat exchanger under the control of the controller; wherein,
heat source water or steam from a heat source sequentially passes through the stop valve and the electric regulating valve to enter the primary side water inlet end of the heat exchanger, and the primary side water outlet end of the heat exchanger is directly communicated with the heat source; the electric regulating valve, the operation and display interface, the frequency converter, the water supply temperature sensor, the water return temperature sensor and the outdoor temperature sensor are all connected with the controller; the water inlet end of the secondary side of the heat exchanger is connected with a hot water pipe network through a circulating pump set, and the water outlet end of the secondary side of the heat exchanger is directly communicated with the hot water pipe network.
In a word, the heat supply regulation and control device realizes heat exchange between external heat source water or steam and hot water in a hot water pipe network according to the difference value between the real-time supply and return water temperature difference and the standard supply and return water temperature difference under the action of the controller, and the hot water in the hot water pipe network absorbs heat and then is further heated for a heating user to use. Therefore, the invention fully utilizes external energy and plays a role in preventing energy waste. The invention also adjusts the running state of the circulating pump set according to the relation between the real-time water supply and return temperature difference and the standard water supply and return temperature difference under the action of the controller, for example, the circulating pump set runs under the state of smaller load under the condition that the heat required by a user is smaller. Therefore, the invention further realizes energy saving and keeps the comfort level of the heating area environment. In addition, the invention has the characteristics of compact structure and the like.
In practical application, the water supply temperature sensor is arranged on a water supply pipeline on the secondary side of the heat exchanger, the water return temperature sensor is arranged on a water return pipeline on the secondary side of the heat exchanger, and the outdoor temperature sensor is arranged at an open-air typical position outside a building.
Fig. 2 is a schematic structural diagram of the controller according to the present invention. As shown in fig. 2, the controller of the present invention includes a memory, a data processor; wherein,
the storage is used for pre-storing each local standard outdoor temperature range, the corresponding relation between the standard supply and return water temperature difference and the outdoor temperature corresponding to each standard outdoor temperature range, a first temperature control range of the frequency converter, a second temperature control range of the frequency converter and a third temperature control range of the frequency converter; the storage data processor sends real-time water supply temperature, real-time water return temperature, real-time water supply and return temperature difference and real-time outdoor temperature; and storing the opening value of the electric control valve sent by the electric control valve.
In the invention, the first temperature control range of the frequency converter is 10-20 ℃, the second temperature control range of the frequency converter is 5-10 ℃, and the third temperature control range of the frequency converter is 2-5 ℃; the standard supply and return water temperature difference is 1-10 ℃ or 1-20 ℃. In practical application, if a heating radiator is adopted as a heat exchanger in a heating area, the standard temperature difference of supply and return water is 1-20 ℃; if the floor heating coil is adopted as a heat exchanger in the heating area, the standard temperature difference of the supply water and the return water is 1-10 ℃.
The data processor is used for determining the standard outdoor temperature range to which the outdoor temperature sensor belongs according to the real-time outdoor temperature sent by the outdoor temperature sensor, and selecting the corresponding relation between the corresponding standard water supply and return temperature difference and the outdoor temperature from the memory according to the standard outdoor temperature range to which the real-time outdoor temperature belongs and determining the standard water supply and return temperature difference according to the real-time outdoor temperature; judging the relation between the standard supply and return water temperature difference and the first temperature control range, the second temperature control range and the third temperature control range of the frequency converter read from the memory: when the standard supply and return water temperature difference belongs to a first temperature control range of the frequency converter, sending a power frequency control signal to the frequency converter; when the standard supply and return water temperature difference belongs to a second temperature control range of the frequency converter, sending a first frequency conversion control signal to the frequency converter; when the standard supply and return water temperature difference belongs to a third temperature control range of the frequency converter, sending a second frequency conversion control signal to the frequency converter; obtaining a real-time water supply and return temperature difference according to the real-time water supply temperature sent by the water supply temperature sensor and the real-time return temperature sent by the return temperature sensor; judging the relation between the real-time supply and return water temperature difference and the standard supply and return water temperature difference: when the real-time water supply and return temperature difference belongs to the standard water supply and return temperature difference, sending an opening increasing control signal to the electric regulating valve; when the real-time water supply and return temperature difference is lower than the standard water supply and return temperature difference, sending an opening degree reducing control signal to the electric regulating valve; and the control device is also used for sending the real-time outdoor temperature, the real-time water supply and return temperature difference, the corresponding relation between the selected standard water supply and return temperature difference and the outdoor temperature, the determined standard water supply and return temperature difference, the first temperature control range of the frequency converter, the second temperature control range of the frequency converter and the third temperature control range of the frequency converter to the operation and display interface.
The electric regulating valve is used for increasing the opening degree of the electric regulating valve when receiving an opening degree increasing control signal sent by the data processor; and when receiving the opening degree reducing control signal sent by the data processor, reducing the opening degree of the data processor.
The frequency converter is used for sending a power frequency signal to the circulating pump group when receiving a power frequency control signal sent by the data processor; when a first frequency conversion control signal sent by a data processor is received, sending a first frequency conversion signal to the circulating pump group; and when receiving a second frequency conversion control signal sent by the data processor, sending a second frequency conversion signal to the circulating pump group.
The circulating pump group is used for operating at power frequency when receiving the power frequency signal sent by the frequency converter; when a first frequency conversion signal sent by the frequency converter is received, operating by taking 80% -95% of power frequency as operating frequency; and when a second frequency conversion signal sent by the frequency converter is received, operating by taking 70% -80% of the power frequency as the operating frequency.
The operation and display interface is used for displaying the real-time water supply temperature, the real-time water return temperature, the real-time water supply and return temperature difference and the real-time outdoor temperature which are sent by the data processor, displaying the corresponding relation between the standard water supply and return temperature difference and the outdoor temperature which correspond to each standard outdoor temperature range read from the memory in a curve mode, and displaying the first temperature control range of the frequency converter, the second temperature control range of the frequency converter, the third temperature control range of the frequency converter and the opening value of the electric regulating valve read from the memory; for setting and displaying the local standard outdoor temperature ranges and sending the local standard outdoor temperature ranges to the memory.
In practical application, the heat demand of users is different in different seasons. For example, in deep winter, the user has a large demand on heat, the real-time water supply and return temperature difference is also large, and the real-time water supply and return temperature difference is usually in the first temperature control range of the frequency converter; at the moment, under the control of a frequency converter, the circulating pump set runs at power frequency, heat source water or steam in the heat supply regulating and controlling device and hot water in a hot water user pipe network circularly run at 100% of rated flow, and the power consumption is rated power consumption. During early winter or early spring, the user is less to thermal demand, and the real-time return water that supplies difference in temperature is also less: when the real-time water supply and return temperature difference is within the second temperature control range of the frequency converter, the circulating pump set runs under the control of the frequency converter by taking 80% -95% of power frequency as running frequency, hot water in a hot water user pipe network runs circularly by 80% -95% of rated flow, and the power consumption is reduced; when the real-time water supply and return temperature difference is within the third temperature control range of the frequency converter, the circulating pump set runs by taking 70% -80% of the power frequency as the running frequency under the control of the frequency converter, hot water in hot source water or steam and a hot water user pipe network in the heat supply regulating and controlling device runs in a circulating mode by 70% -80% of the rated flow, and the power consumption is further reduced.
In practical application, the operation and display interface is also used for parameters such as the running state of the circulating pump, various statistical data, power consumption, water consumption, heat consumption and the like. In addition, the various data or parameters can be printed through an operation and display interface. The operation state of the circulating pump comprises power frequency operation, operation at 80% -95% of the power frequency, operation at 70% -80% of the power frequency and the like.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The heat supply regulation and control device is characterized by comprising a heat exchanger, a water supply temperature sensor, a return water temperature sensor, an outdoor temperature sensor and a controller, wherein the heat exchanger is used for carrying out heat exchange on hot source water or steam serving as primary water and hot water in a hot water user pipe network serving as secondary water, the water supply temperature sensor is used for sending the measured real-time water supply temperature of the water outlet end of the secondary side of the heat exchanger to the controller, the return water temperature sensor is used for sending the measured real-time return water temperature of the water inlet end of the secondary side of the heat exchanger to the controller, the outdoor temperature sensor is used for sending the measured real-time outdoor temperature to the controller, and the relation between the real-time water supply temperature sent by the water supply temperature sensor, the real-time return water temperature sent by the return water temperature sensor, the real-time outdoor temperature sent by the outdoor temperature, The controller is used for controlling the frequency converter, the display interface is used for sending an operation instruction, an input parameter and displaying the operation of the parameter of the controller to the controller, and the frequency converter is used for regulating and controlling the secondary water inflow of the heat exchanger under the control of the controller; wherein,
heat source water or steam from a heat source sequentially passes through the stop valve and the electric regulating valve to enter the primary side water inlet end of the heat exchanger, and the primary side water outlet end of the heat exchanger is directly communicated with the heat source; the electric regulating valve, the operation and display interface, the frequency converter, the water supply temperature sensor, the water return temperature sensor and the outdoor temperature sensor are all connected with the controller; the water inlet end of the secondary side of the heat exchanger is connected with a hot water pipe network through a circulating pump set, and the water outlet end of the secondary side of the heat exchanger is directly communicated with the hot water pipe network.
2. A heating regulation device as claimed in claim 1, characterized in that the controller comprises a memory, a data processor; wherein,
the storage is used for pre-storing each local standard outdoor temperature range, the corresponding relation between the standard supply and return water temperature difference and the outdoor temperature corresponding to each standard outdoor temperature range, a first temperature control range of the frequency converter, a second temperature control range of the frequency converter and a third temperature control range of the frequency converter; the storage data processor sends real-time water supply temperature, real-time water return temperature, real-time water supply and return temperature difference and real-time outdoor temperature; storing the opening value of the electric control valve sent by the electric control valve;
the data processor is used for determining the standard outdoor temperature range to which the outdoor temperature sensor belongs according to the real-time outdoor temperature sent by the outdoor temperature sensor, and selecting the corresponding relation between the corresponding standard water supply and return temperature difference and the outdoor temperature from the memory according to the standard outdoor temperature range to which the real-time outdoor temperature belongs and determining the standard water supply and return temperature difference according to the real-time outdoor temperature; judging the relation between the standard supply and return water temperature difference and the first temperature control range, the second temperature control range and the third temperature control range of the frequency converter read from the memory: when the standard supply and return water temperature difference belongs to a first temperature control range of the frequency converter, sending a power frequency control signal to the frequency converter; when the standard supply and return water temperature difference belongs to a second temperature control range of the frequency converter, sending a first frequency conversion control signal to the frequency converter; when the standard supply and return water temperature difference belongs to a third temperature control range of the frequency converter, sending a second frequency conversion control signal to the frequency converter; obtaining a real-time water supply and return temperature difference according to the real-time water supply temperature sent by the water supply temperature sensor and the real-time return temperature sent by the return temperature sensor; judging the relation between the real-time supply and return water temperature difference and the standard supply and return water temperature difference: when the real-time water supply and return temperature difference is higher than the standard water supply and return temperature difference, sending an opening increasing control signal to the electric regulating valve; when the real-time water supply and return temperature difference is lower than the standard water supply and return temperature difference, sending an opening degree reducing control signal to the electric regulating valve; the real-time outdoor temperature, the real-time water supply temperature, the real-time water return temperature and the real-time water supply and return temperature difference are sent to a memory and an operation and display interface;
the electric regulating valve is used for increasing the opening degree of the electric regulating valve when receiving an opening degree increasing control signal sent by the data processor; when receiving an opening degree reducing control signal sent by a data processor, reducing the opening degree of the data processor; the electric control valve is also used for sending the opening value of the electric control valve to a memory and the operation and display interface through a data processor;
the frequency converter is used for sending a power frequency signal to the circulating pump group when receiving a power frequency control signal sent by the data processor; when a first frequency conversion control signal sent by a data processor is received, sending a first frequency conversion signal to the circulating pump group; when a second frequency conversion control signal sent by the data processor is received, sending a second frequency conversion signal to the circulating pump group;
the circulating pump group is used for operating at power frequency when receiving the power frequency signal sent by the frequency converter; when a first frequency conversion signal sent by the frequency converter is received, operating by taking 80% -95% of power frequency as operating frequency; when a second frequency conversion signal sent by the frequency converter is received, operating by taking 70% -80% of power frequency as operating frequency;
the operation and display interface is used for displaying the real-time water supply temperature, the real-time water return temperature, the real-time water supply and return temperature difference and the real-time outdoor temperature which are sent by the data processor, displaying the corresponding relation between the standard water supply and return temperature difference and the outdoor temperature which correspond to each standard outdoor temperature range read from the memory in a curve mode, and displaying the first temperature control range of the frequency converter, the second temperature control range of the frequency converter, the third temperature control range of the frequency converter and the opening value of the electric regulating valve read from the memory; for setting and displaying the local standard outdoor temperature ranges and sending the local standard outdoor temperature ranges to the memory.
3. A heating regulation device as claimed in claim 2, wherein the first temperature control range of the frequency converter is 10-20 ℃, the second temperature control range of the frequency converter is 5-10 ℃, and the third temperature control range of the frequency converter is 2-5 ℃; the standard supply and return water temperature difference is 1-10 ℃ or 1-20 ℃.
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| CN201210495445.2A CN102927622B (en) | 2012-11-28 | 2012-11-28 | Heat supply regulating device |
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| CN201210495445.2A CN102927622B (en) | 2012-11-28 | 2012-11-28 | Heat supply regulating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103453580A (en) * | 2013-08-22 | 2013-12-18 | 鞍山市海汇自动化有限公司 | Integrated and intelligent control method for heat exchange station |
| CN104833025A (en) * | 2015-04-30 | 2015-08-12 | 宁波杭州湾新区祥源动力供应有限公司 | Energy-saving type workshop air conditioner cold and heat source equipment and application thereof |
| CN106091363A (en) * | 2016-07-22 | 2016-11-09 | 中国联合工程公司 | The regenerative electrochemical heated barrier cistern system of a kind of constant temperature water supply and control method thereof |
| CN109520333A (en) * | 2018-12-28 | 2019-03-26 | 启明星宇节能科技股份有限公司 | Flue gas waste heat recovery heat-exchange system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103453580A (en) * | 2013-08-22 | 2013-12-18 | 鞍山市海汇自动化有限公司 | Integrated and intelligent control method for heat exchange station |
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| CN106091363A (en) * | 2016-07-22 | 2016-11-09 | 中国联合工程公司 | The regenerative electrochemical heated barrier cistern system of a kind of constant temperature water supply and control method thereof |
| CN109520333A (en) * | 2018-12-28 | 2019-03-26 | 启明星宇节能科技股份有限公司 | Flue gas waste heat recovery heat-exchange system |
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| CN102927622B (en) | 2015-04-01 |
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