CN113685876A - Automatic temperature-adjusting water heating system - Google Patents
Automatic temperature-adjusting water heating system Download PDFInfo
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- CN113685876A CN113685876A CN202111043456.2A CN202111043456A CN113685876A CN 113685876 A CN113685876 A CN 113685876A CN 202111043456 A CN202111043456 A CN 202111043456A CN 113685876 A CN113685876 A CN 113685876A
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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
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to the field of heating facilities, and discloses an automatic temperature-adjusting water heating system which comprises a water supply loop and heat dissipation equipment, wherein the water supply loop comprises water inlet pipelines and water outlet pipelines, each water outlet pipeline is communicated with one heat dissipation equipment, the automatic temperature-adjusting water heating system also comprises a flow adjusting module, a temperature detecting module, a control module and a power supply module, the flow adjusting module adjusts the flow of hot water in the water supply loop, the temperature detecting module detects the indoor temperature, the control module is simultaneously and electrically connected with the temperature detecting module and the flow adjusting module to receive a detection signal sent by the temperature detecting module and send a control signal to the flow adjusting module, and the power supply module simultaneously provides electric energy for the control module, the temperature detecting module and the flow adjusting module. The problems of complicated operation of manually adjusting the water inlet valve and temperature regulation and control hysteresis are solved. The invention can stably keep the indoor temperature in the comfortable range of human body, and has the advantages of automatic temperature control, accurate temperature control, high efficiency, energy saving and the like.
Description
Technical Field
The invention relates to the field of heating facilities, in particular to an automatic temperature-adjusting water heating system.
Background
In northern areas of high latitudes in China, the air temperature drops suddenly after entering winter, the air temperature is low, the cold wind is large, and the air is dry, particularly in the areas north of the yellow river, people need to adopt some indoor heating means in order to resist the severe cold of the thoroughfare in winter and guarantee the normal life and production. In vast rural areas, village people generally choose to burn coal in an indoor stove to achieve the purpose of heating, but the heating mode has serious environmental pollution, and because of insufficient combustion, coal gas poisoning and even fire accidents often occur, and great loss is caused to the life and property safety of the masses.
Therefore, a water heater has appeared to replace a stove as a safe and environment-friendly heating device, and the principle of the water heater is to circularly introduce hot water into the radiating fins to dissipate heat, so that the space where the radiating fins are located is heated and insulated. However, whether it is for office living or livestock farming, the human body and other organisms are sensitive to drastic changes in the ambient temperature. Therefore, it is important to adjust the indoor temperature in such a heating manner so that the indoor temperature can be always maintained within an acceptable range for human or other living bodies regardless of the change of the external temperature.
In general, the main factors affecting the temperature of the indoor environment in which the water heating system is installed are the temperature of hot water flowing into the fins and the flow rate of the hot water. In order to prevent the loss of heat during the long-distance transportation of the hot water and to prevent insufficient heat for heating, the temperature of the hot water flowing into the heat radiating fins is generally a predetermined higher temperature. Therefore, the conventional method of adjusting the room temperature is to control the flow rate of the hot water. Specifically, when the indoor temperature is low, the flow rate of hot water entering the radiating fins can be increased, so that more heat can be radiated from the radiating fins in unit time; when the indoor temperature is high, the flow rate of hot water entering the radiating fins is reduced, so that the heat emitted from the radiating fins in unit time is reduced. However, the water inlet valve needs to be manually adjusted by people in the adjusting mode, particularly, the midday illumination is strong, the indoor temperature is high, and the temperature is lowest at night due to no illumination, so that the round-trip manual adjusting valve is not practical, so that part of residents select to realize indoor cooling by windowing and ventilating when the midday temperature is highest, the energy conservation is not facilitated, cold and hot alternation easily causes cold, and a water heating system capable of automatically adjusting the room temperature is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic temperature-adjusting water heating system, which avoids the complicated operation of manually adjusting a water inlet valve and the hysteresis of temperature adjustment, enables the indoor temperature to be stably kept in the comfortable range of a human body, has the advantages of automatic temperature control, accurate temperature control, high efficiency, energy conservation and the like, and is convenient to popularize and apply in a large area.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an automatic hot-water heating system who adjusts temperature, includes water supply circuit and heat abstractor, the water supply circuit includes inlet channel and outlet conduit, every the outlet conduit all communicates with a heat abstractor, and heating hot water still includes flow control module, temperature detection module, control module and power module from inlet channel flow direction outlet conduit, flow control module sets up and is used for adjusting the hot water flow in the water supply circuit on the water supply circuit, temperature detection module is used for detecting indoor temperature, control module is connected with temperature detection module and flow control module electricity simultaneously, control module receives the detected signal that temperature detection module sent and sends control signal to flow control module, power module provides the electric energy for control module, temperature detection module and flow control module simultaneously.
Through adopting above-mentioned technical scheme, but the indoor temperature of temperature detection module real-time detection, and turn into the current signal with temperature information and send into control module, control module sends control signal to flow control module according to the signal of temperature detection module conveying, the hot water flow in the water supply return circuit is adjusted according to control module's control signal to the flow control module of installation on the water supply return circuit, thereby realize that the room temperature reduces the hot water flow in the water supply return circuit automatically when high and increases the hot water flow in the water supply return circuit automatically when the room temperature is low, reach the effect of avoiding manual regulation intake valve and making the stable maintenance of indoor temperature at human comfortable scope.
The invention is further configured to: the flow regulating module comprises a main regulating valve and auxiliary regulating valves, the main regulating valve is installed on the water inlet pipeline and used for regulating the water inlet flow, and each auxiliary regulating valve is installed on one water outlet pipeline and used for regulating the flow of hot water flowing into each heat radiating device.
Through adopting above-mentioned technical scheme, because indoor generally divide into a plurality of rooms and install a plurality of heat abstractor, the hot water flow in the inlet channel can directly be adjusted to main governing valve, and the hot water flow of a heat abstractor all can be adjusted alone to each vice governing valve to the temperature in the room that each heat abstractor of accurate control is located has improved hot-water heating system's practicality.
The invention is further configured to: and the main regulating valve and the auxiliary regulating valve are both electric regulating valves.
By adopting the technical scheme, the electric regulating valve can receive the standard current control signal sent by the control module in real time, so that the opening of the valve can be automatically changed in an all-weather and accurate manner, the purposes of controlling the inflow and the hot water flow flowing into each radiating device are achieved, and the effect of ensuring the indoor constant temperature is finally realized.
The invention is further configured to: and the main regulating valve and the auxiliary regulating valve are both air-closed electric regulating valves.
By adopting the technical scheme, the air-closed regulating valve is selected, so that the regulating valve can be in a completely opened state after the control module fails to lose the control signal, and the serious consequences caused by rapid drop of indoor temperature due to the fact that the main regulating valve and the auxiliary regulating valve are automatically closed after the control signal is lost are avoided.
The invention is further configured to: and the control module calculates the regulated quantity according to a preset temperature value after receiving the detection signal sent by the temperature detection module and sends a control signal to the flow regulation module.
By adopting the technical scheme, the control module calculates the regulating quantity of the flow regulating module to the inflow water flow and the hot water flow flowing into each heat dissipation device by comparing the current indoor temperature detected by the temperature detection module with the preset temperature value, and the control signal of the regulating quantity is sent to the flow regulating module to regulate the hot water flow.
The invention is further configured to: the preset temperature value of the control module can be adjusted by a user.
By adopting the technical scheme, the preset temperature is the comfortable body sensing temperature of the user. The comfortable temperatures of different crowds or crowds in different regions are different, and the user can adjust the setting of the preset temperature by himself to improve the comfort of the user and avoid the waste of energy.
The invention is further configured to: and the control module selects a programmable controller as a control instrument.
By adopting the technical scheme, the Programmable Logic Controller (PLC) has the advantages of rich control functions, convenience in operation, rich expansion modules, integration of continuous control and logic control, and convenience in realization of various control rules.
The invention is further configured to: the control module calculates the regulating quantity of the hot water flow by adopting the following formula:
where y is the output signal of the controller, P is the scale, e is the deviation between the set value and the measured value, T1Is a constant of the integration time, T represents time, TDIs the differential time constant.
By adopting the technical scheme, the proportional integral derivative control rule adopted by the control module has the advantages of proportional control, proportional integral control and proportional derivative control, namely the control module has the advantages of timely control, sensitive response, elimination of residual error, advanced control, improvement of control quality and improvement of control precision.
The invention is further configured to: the temperature detection module comprises a metal thermal resistor and a temperature transmitter, the metal thermal resistor measures indoor temperature, and the temperature transmitter receives an output signal of the metal thermal resistor and outputs a standard digital signal.
By adopting the technical scheme, the metal thermal resistor has the advantages of high temperature measurement precision, wide temperature measurement range and stable physical and chemical properties, and can detect the change of indoor temperature more sensitively and output corresponding detection signals. The temperature transmitter receives a detection signal output by the metal thermal resistor and converts the detection signal into a standard signal to enter the control module. The digital temperature transmitter is selected to directly output the digital signal, so that an additional digital-to-analog conversion module is avoided, and the system structure is simplified.
The invention is further configured to: the metal thermal resistor is a copper resistor.
By adopting the technical scheme, in the metal thermal resistor, the temperature measurement range of-50-150 degrees of the copper resistor completely meets the indoor and outdoor temperature change in winter in northern areas of China, and the copper resistor is low in price and has good economy.
In summary, the invention has the following beneficial effects:
(1) the temperature detection module detects indoor temperature in real time, converts temperature information into a current signal and sends the current signal to the control module, the control module calculates the adjustment quantity of the flow adjustment module to the hot water flow in the water supply loop by comparing the current indoor temperature detected by the temperature detection module with a preset temperature value, and the control signal of the adjustment quantity is sent to the flow adjustment module installed on the water supply loop to adjust the hot water flow, so that the hot water flow in the water supply loop is automatically reduced when the room temperature is high, the hot water flow in the water supply loop is automatically increased when the room temperature is low, and the effects of avoiding manually adjusting a water inlet valve and enabling the indoor temperature to be stably kept in a comfortable range of a human body are achieved;
(2) the main regulating valve and the auxiliary regulating valve adopt air-closed electric regulating valves which can receive standard current control signals sent from the control module in real time, so that the valve opening degree is automatically changed in an all-weather and accurate manner, and the purposes of controlling the inflow and the hot water flow flowing into each heat dissipation device are achieved; the air-closed regulating valve is selected, so that the main regulating valve and the auxiliary regulating valve are in a completely opened state after the control module loses control signals due to faults, and serious consequences caused by rapid drop of indoor temperature due to the fact that the main regulating valve and the auxiliary regulating valve are automatically closed after the control signals are lost are avoided;
(3) the control module adopts a proportional-integral-derivative control rule and has the advantages of proportional control, proportional-integral control and proportional-derivative control, namely the control module has the advantages of timely control, sensitive response, elimination of residual difference, advanced control, improvement of control quality and improvement of control precision.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and those skilled in the art can also obtain other drawings according to the drawings.
Fig. 1 is a schematic structural view of an automatic temperature-adjusting water heating system.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an automatic temperature-adjusting water heating system includes a water supply circuit and a heat dissipation device. The water supply circuit comprises one water inlet conduit and a plurality of water outlet conduits, in this embodiment only two water outlet conduits. Each water outlet pipeline is communicated with a heat dissipation device, and heating hot water flows to the water outlet pipeline from the water inlet pipeline and then enters the heat dissipation device, so that the indoor heating effect is achieved.
The automatic temperature-adjusting water heating system further comprises a flow adjusting module, a temperature detecting module, a control module and a power supply module.
The flow regulating module is arranged on the water supply loop and used for regulating the flow of hot water in the water supply loop. The flow regulating module comprises a main regulating valve and a plurality of auxiliary regulating valves, and the main regulating valve is arranged on the water inlet pipeline and used for regulating the flow of hot water in the water inlet pipeline. And each auxiliary regulating valve is arranged on one water outlet pipeline and is used for regulating the flow of hot water flowing into each heat radiating device, so that the temperature in a room where each heat radiating device is located is accurately controlled, and the practicability of the water heating system is improved.
In this embodiment, the main regulating valve and the auxiliary regulating valve are both air-closed electric regulating valves. The electric regulating valve can receive a standard current control signal sent by the control module in real time, so that the opening of the valve can be automatically changed in an all-weather and accurate manner, and the purposes of controlling the inflow and the hot water flow flowing into each heat dissipation device are achieved; and the air-closed regulating valve is selected, so that the main regulating valve and the auxiliary regulating valve are in a completely opened state after the control module fails to lose the control signal, and the serious consequences caused by rapid drop of the indoor temperature due to the fact that the main regulating valve and the auxiliary regulating valve are automatically closed after losing the control signal are avoided.
The temperature detection module is used for detecting indoor temperature and comprises a metal thermal resistor and a temperature transmitter.
The metal thermal resistor is used for measuring indoor temperature, has the advantages of high temperature measurement precision, wide temperature measurement range and stable physical and chemical properties, and can detect the change of the indoor temperature more sensitively and output corresponding detection signals. In the embodiment, the metal thermal resistor is a copper resistor, the temperature measurement range of the copper resistor is-50-150 degrees, the indoor and outdoor temperature change in winter in northern areas of China is completely met, and the copper resistor is low in price and has good economy.
The temperature transmitter receives the output signal of the metal thermal resistor and converts the output signal into a standard signal to enter the control module. In the embodiment, the digital temperature transmitter is selected to directly output the standard digital signal, so that an additional digital-to-analog conversion module is avoided, and the system structure is simplified.
The control module is simultaneously electrically connected with the temperature detection module and the flow regulation module, and the control module calculates the regulated quantity according to a preset temperature value after receiving a detection signal sent by the temperature detection module and sends a control signal to the flow regulation module.
The control module calculates the regulating quantity of the flow regulating module to the inflow water flow and the hot water flow flowing into each heat dissipation device by comparing the current indoor temperature detected by the temperature detection module with a preset temperature value, and a control signal of the regulating quantity is sent to the flow regulating module to regulate the hot water flow. The preset temperature value of the control module can be adjusted by the user due to the fact that the comfortable temperatures of different crowds or different regions are different. Meanwhile, the invention also supports the user to set the preset temperature to be in a certain range, such as 23-28 degrees, thereby improving the comfort of the user and avoiding the waste of energy.
In this embodiment, the control module may be a programmable controller as the control instrument.
The Programmable Logic Controller (PLC) can be used for switching value Logic control, and is also provided with a PID module, so that the PLC has the advantages of rich control function, convenience in operation, rich expansion modules, integration of continuous control and Logic control, and convenience in realization of various control rules.
The control module calculates the regulating quantity of the hot water flow by adopting the following formula:
where y is the output signal of the controller, P is the scale, e is the deviation between the set value and the measured value, T1Is a constant of the integration time, T represents time, TDIs the differential time constant.
The proportional control has the characteristics of timely control and sensitive response, the larger the deviation is, the larger the control force is, but the control result has residual difference; the proportional-integral control has the characteristics that the control precision of the system can be improved, and the residual error is eliminated, but the problems of slow control action and incapability of timely control exist; the proportional-derivative control can play a role of advanced control, can increase the control role in advance when the deviation is very small, improves the control quality, and is particularly suitable for the temperature parameter with large hysteresis characteristic in the invention. Therefore, the automatic temperature-adjusting water heating system adopts a proportional-integral-derivative control rule, the control action output is the sum of proportional, integral and derivative outputs, and the automatic temperature-adjusting water heating system has the advantages of proportional control, proportional-integral control and proportional-derivative control, namely the automatic temperature-adjusting water heating system has the advantages of timely control, sensitive response, elimination of residual error, advanced control, improvement of control quality and improvement of control precision.
The power supply module provides electric energy for the control module, the temperature detection module and the flow regulation module at the same time. Specifically, power module turns into the secondary power supply that can supply control module, temperature detection module and flow control module direct use with the commercial power, and power module still includes power storage equipment simultaneously for continue to provide the electric energy for the system when having a power failure for a short time, improved this automatic temperature adjustment's hot-water heating system's practicality.
The implementation principle of the above embodiment is as follows:
but the indoor temperature of temperature detection module real-time detection, and convert temperature information into current signal and send into control module, control module sends control signal to flow control module according to the signal of temperature detection module conveying, the hot water flow in the flow control module of installation on the water supply return circuit adjusts the water supply return circuit according to control module's control signal, thereby realize that the room temperature reduces the hot water flow in the water supply return circuit automatically when high and increases the hot water flow in the water supply return circuit automatically when the room temperature is low, reach the effect of avoiding manual regulation intake valve and making the stable maintenance in human comfortable scope of indoor temperature.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an automatic hot-water heating system who adjusts temperature, includes water supply circuit and heat abstractor, the water supply circuit includes inlet channel and outlet conduit, every outlet conduit all communicates with a heat abstractor, and heating hot water flows to outlet conduit from the inlet channel, its characterized in that still includes flow control module, temperature detection module, control module and power module, flow control module sets up and is used for adjusting the hot water flow in the water supply circuit on the water supply circuit, temperature detection module is used for detecting indoor temperature, control module is connected with temperature detection module and flow control module electricity simultaneously, control module receives the detected signal that temperature detection module sent and sends control signal to flow control module, power module provides the electric energy for control module, temperature detection module and flow control module simultaneously.
2. The automatic temperature-adjusting water heating system as claimed in claim 1, wherein the flow-adjusting module includes a main-adjusting valve installed on the water inlet pipe for adjusting the flow rate of the inlet water and auxiliary-adjusting valves each installed on one of the water outlet pipes for adjusting the flow rate of the hot water flowing into each of the heat-radiating devices.
3. The automatic temperature-adjusting water heating system as claimed in claim 2, wherein the main and sub-adjusting valves are electric adjusting valves.
4. The automatic temperature-adjusting water heating system as claimed in claim 3, wherein the main and sub-adjusting valves are air-closed electric adjusting valves.
5. The automatic temperature-regulating water heating system according to claim 1, wherein the control module calculates the regulating quantity according to a preset temperature value after receiving the detection signal from the temperature detection module and sends a control signal to the flow regulating module.
6. The automatic temperature-regulating water heating system as claimed in claim 5, wherein the preset temperature value of the control module is adjustable by user.
7. The automatic temperature-regulating water heating system as claimed in claim 5, wherein the control module adopts a programmable controller as a control instrument.
8. The automatic temperature-adjusting water heating system according to claim 5, wherein the control module calculates the adjustment amount of the hot water flow rate using the following formula:
where y is the output signal of the controller, P is the scale, e is the deviation between the set value and the measured value, T1Is a constant of the integration time, T represents time, TDIs the differential time constant.
9. The automatic temperature-adjusting water heating system according to claim 1, wherein the temperature sensing module comprises a metal thermal resistor and a temperature transmitter, the metal thermal resistor measures the indoor temperature, and the temperature transmitter receives an output signal of the metal thermal resistor and outputs a standard digital signal.
10. The system as claimed in claim 9, wherein the metal thermal resistor is copper resistor.
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| CN202111043456.2A CN113685876A (en) | 2021-09-07 | 2021-09-07 | Automatic temperature-adjusting water heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111043456.2A CN113685876A (en) | 2021-09-07 | 2021-09-07 | Automatic temperature-adjusting water heating system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101134687B1 (en) * | 2011-04-11 | 2012-04-09 | 김동용 | Heating control system for multiplex housing |
| CN103946637A (en) * | 2011-10-13 | 2014-07-23 | （株）庆东One | Method for controlling heating system |
| CN109340890A (en) * | 2018-09-28 | 2019-02-15 | 广东电网有限责任公司 | A kind of temperature energy-saving control system and method for residential building central heating |
| CN112032819A (en) * | 2020-09-11 | 2020-12-04 | 河北建筑工程学院 | Control system for reducing heat supply operation regulation time lag |
| CN112460677A (en) * | 2020-12-14 | 2021-03-09 | 北京优奈特燃气工程技术有限公司 | Intelligent heat inlet device, system and control method based on Internet of things |
-
2021
- 2021-09-07 CN CN202111043456.2A patent/CN113685876A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101134687B1 (en) * | 2011-04-11 | 2012-04-09 | 김동용 | Heating control system for multiplex housing |
| CN103946637A (en) * | 2011-10-13 | 2014-07-23 | （株）庆东One | Method for controlling heating system |
| CN109340890A (en) * | 2018-09-28 | 2019-02-15 | 广东电网有限责任公司 | A kind of temperature energy-saving control system and method for residential building central heating |
| CN112032819A (en) * | 2020-09-11 | 2020-12-04 | 河北建筑工程学院 | Control system for reducing heat supply operation regulation time lag |
| CN112460677A (en) * | 2020-12-14 | 2021-03-09 | 北京优奈特燃气工程技术有限公司 | Intelligent heat inlet device, system and control method based on Internet of things |
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Application publication date: 20211123 |
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