CN111780429A - Zero-cold-water technical system based on real-time temperature control of key points - Google Patents
Zero-cold-water technical system based on real-time temperature control of key points Download PDFInfo
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- CN111780429A CN111780429A CN202010822805.XA CN202010822805A CN111780429A CN 111780429 A CN111780429 A CN 111780429A CN 202010822805 A CN202010822805 A CN 202010822805A CN 111780429 A CN111780429 A CN 111780429A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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Abstract
The invention discloses a zero-cold-water technical system based on real-time temperature control of key points, which relates to the technical field of zero-cold water of gas water heaters, and is used for detecting the temperature of hot water supply key points in the zero-cold-water technology of a water heater, so that the real-time temperature of hot water supply points of a hot water pipe can be truly reflected, and the accurate control of the preheating of the water heater is realized according to the temperature of the detected key points; compared with the mode of detecting the water temperature at the water inlet by the existing zero-cold-water technology, the method can reflect the water temperature at the water supply point in real time, timely and accurately control the start and stop of the preheating of the water heater, and effectively solve the problems of waste of heating water in the pipe from the hot water outlet to the water inlet temperature sensor, long preheating time and the like.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to a zero-cold-water technical system based on key point real-time temperature control, which is used in a zero-cold-water technology of a gas water heater.
Background
With the use development of gas water heaters, when some water heaters are used, a certain distance exists between the water heater and a hot water using point, and cold water needs to be put at a water outlet for a period of time so as to discharge hot water, thereby causing serious waste of water resources.
At present, there is the zero cold water technique to the water heater specially, and its technique is to circulate to the water in the hot-water line and preheat, and the temperature sensor that intakes when zero cold water equipment detects into water for hot water, stops preheating, realizes promptly going out the hot water function promptly with using. The method adopts two modes, namely, a water return pipe communicated with a hot water pipe is embedded, the method adopts the water inlet temperature detection start-stop preheating, and the problem of waste of water heating in the pipe from a hot water outlet position to a water inlet temperature sensor exists; the second method is that a one-way valve for guiding hot water to cold water in one way is installed at the farthest heat supply point, because the cold water pipe has a plurality of branches, the phenomenon that the return water becomes hot can not be detected by the water inlet temperature sensor all the time or for a long time, the water heater does not stop heating water for preheating, and besides the problem of heating waste, accidents such as fire, gas poisoning and the like caused by long-time preheating can be caused.
Disclosure of Invention
In order to overcome the problems, the invention provides a zero-cold water technology system based on key point real-time temperature control, which can not only quickly detect whether the key point water is hot, but also immediately and accurately control the start and stop of the preheating of a water heater through real-time temperature information sent back by a temperature sensor of the system.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a zero cold water technology system based on real-time temperature control of key point for zero cold water technique of gas heater includes: the device comprises a temperature sensor, a data processor, a communication sending module, a power supply, a communication receiving module and a controller; the temperature sensor is used for actually measuring the temperature of water at a key point of the hot water pipeline and outputting corresponding temperature sensing data; the data processor is in communication connection with the temperature sensor and receives and processes temperature sensing data detected by the temperature sensor; the communication sending module modulates and sends the temperature sensing data output by the data processor; the power supply supplies power to the temperature sensor, the data processor and the communication sending module; the communication receiving module is used for receiving the modulated temperature sensing data sent by the communication sending module, demodulating and restoring the temperature sensing data and transmitting the temperature sensing data to the controller; the controller is connected with the communication receiving module and used for receiving and analyzing temperature sensing data and controlling the starting and stopping of the preheating function of the water heater.
Furthermore, the key point is near the farthest hot water supply position of the hot water pipe of the water heater, and can be a return point of the water return pipe and the water heater, and can be a hot water pipe side of the one-way valve when the water return pipe is not arranged.
Furthermore, the temperature sensor, the data processor and the communication sending module are arranged at key points of a remote detection pipeline and are powered by the power supply; the communication receiving module and the controller are arranged near the water inlet pipe of the water heater or in the water heater.
Furthermore, the temperature sensor is a sensor for measuring temperature information of key points of the pipeline, can measure a sensing temperature signal, detects real-time temperature T1 of the key points of the pipeline, and is in communication connection with the data processor, wherein the key points of the pipeline are at specified temperature detection points of the external hot water pipeline of the water heater; the temperature sensor can continuously measure the real-time temperature T1 after the complete water heater is powered off; and after the water heater is started to operate, temperature sensing data can be obtained from the temperature sensor through the wireless transmission channel in real time.
Further, the data processor is configured to amplify, quantize, and the like the temperature sensing data detected by the temperature sensor, and output a temperature sensing data signal with a sufficient peak value to the communication sending module for modulation sending.
Furthermore, the controller can perform transmission interaction of the temperature sensing data between the communication sending module, the communication receiving module and the wireless temperature detection device, and transmit the temperature sensing data detected by the temperature sensor to the controller through a wireless transmission channel.
Further, the controller controls the water heater to start and stop preheating work, when the water heater starts a preheating function and preset hot water temperature T2, considering the water temperature attenuation of hot water in a pipeline, and the attenuation temperature T3, the temperature T4 after attenuation is preset to be T2-T3, the controller rapidly receives and processes the real-time temperature T1 of a pipeline key point detected by the temperature sensor through a wireless transmission channel, and when T1 is less than T4, the controller controls the water heater to start preheating work; when T1 is more than or equal to T4, the controller controls the water heater to stop preheating.
The invention has the beneficial effects that the whole structure of the technical system is simple, the start and stop of the zero-cold water equipment can be accurately controlled, the preheating of the water heater can be quickly started when the temperature does not reach the set temperature through detecting the real-time temperature of the key point, and the preheating of the water heater is accurately stopped when the temperature reaches the set temperature.
Drawings
Fig. 1 is a block diagram of a zero-cooling water technology system based on real-time temperature control of key points.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is to be understood that the described embodiments are only a few, and not all, embodiments of the present invention; the components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
In order to facilitate understanding of the present invention, the technical solutions provided in the present application will be described in detail with reference to specific embodiments.
Examples
Referring to fig. 1, the present embodiment provides a zero-cold-water technology system based on real-time temperature control of a key point, which is used for implementing real-time start-stop control of a zero-cold-water control system, and includes a temperature sensor, a data processor, a communication sending module, a power supply, a communication receiving module, and a controller; the temperature sensor is arranged at a real-time detection key point; a data processor in communication with the temperature sensor; the communication sending module is connected with the data processor; the power supply supplies power to the device; the communication receiving module corresponds to the communication sending module and is used for interactive communication; the controller is connected with the communication receiving module and is also connected with a start-stop control device for controlling the preheating function.
In the embodiment, the scheme is divided into a scheme with a water return pipe and a scheme without the water return pipe, and a special water return pipe scheme is adopted, wherein the water return pipe is arranged between the farthest heat supply point of a hot water pipe and a water inlet pipe of a water heater, and the scheme detects the key point at the joint of the hot water pipe and the water return pipe in real time; the scheme is characterized in that a one-way valve is installed in the scheme without a water return pipe, the one-way valve is installed near the farthest heat supply point of a hot water pipe, the one-way valve for hot water to flow to cold water is conveniently installed, and the key point of the scheme is detected to be located on the hot water pipe side of the one-way valve in real time; the temperature sensor is preferably a universal water heater temperature sensor, a mounting hole corresponding to the temperature sensor is arranged on a pipeline for detecting the key point in real time during mounting, and the mounting hole can enable the temperature sensor to be directly contacted with hot water in the detection pipe after being sealed, so that the temperature of the key point water can be rapidly detected in real time.
In the embodiment, the temperature sensor, the data processor, the communication sending module and the power supply form an integral device which is arranged near a real-time detection key point, and the power supply can be powered by a dry battery, a lithium battery, a small photovoltaic power supply or a 220V direct current power supply; the communication receiving module and the controller can be independently an apparatus arranged at the front end of the water inlet pipe of the water heater, and can also be a part of the water heater and arranged in the water heater.
In the embodiment, the temperature sensor is installed at a detection key point through the installation hole, the real-time temperature T1 of the key point of the pipeline is detected, and once temperature data is sent to the controller through the data processor, the communication sending module and the communication receiving module when the detected real-time temperature T1 changes by more than 1 ℃, so that the data sending frequency is reduced as much as possible, resources are effectively saved, the power consumption is reduced, and the service life of equipment is prolonged; the temperature sensor can continuously measure the real-time temperature T1 after the controller equipment is powered off, and data is sent when the temperature changes more than 1 ℃; when the controller equipment is started to operate, the temperature sensing data can be immediately obtained from the temperature sensor through the wireless transmission channel.
In the embodiment, the data processor collects the temperature sensing data of the temperature sensor, and amplifies and quantizes the temperature sensing data; compared with the temperature data collected and stored in the front, the variable quantity is more than or equal to 1 ℃, the data is transmitted to the communication sending module and is controlled to modulate and send the temperature data, the variable quantity is less than 1 ℃, and the data is not sent.
In this embodiment, the controller can perform transmission interaction of the temperature sensing data between the communication sending module, the communication receiving module and the wireless temperature detection device, and transmit the temperature sensing data detected by the temperature sensor to the controller through a wireless transmission channel; the transmission distance between the communication sending module and the communication receiving module is generally within 200 meters, and the temperature data is sent and received based on a wireless communication protocol.
In the embodiment, a booster pump is arranged on a water inlet pipe of the water heater, and the start and stop of the booster pump are controlled by a controller; at the moment, the scheme is divided into two schemes, one scheme is a special water return pipe scheme, and the water return pipe returns water to a cold water pipe in front of the booster pump through a one-way valve; in another scheme without a water return pipe, a one-way valve for flowing hot water to cold water is arranged near the farthest heat supply point, and water in the hot water pipe flows into the cold water pipe through the one-way valve; if the preset hot water temperature T2 is determined by considering the water temperature attenuation of the hot water in the pipeline, the attenuation temperature T3, and the temperature T3 is determined by considering various factors, in the example, the temperature is set to be 5 ℃, and the preset temperature after attenuation T4 is T2-T3; when the embodiment is implemented, when preheating is needed, the controller rapidly receives and processes the real-time temperature T1 of the key point of the pipeline detected by the temperature sensor through the wireless transmission channel, when the temperature T1 is less than T4, the power supply of the booster pump is turned on by the controller, the booster pump operates to increase the water pressure in the water inlet pipe, the internal heat exchanger and the hot water pipe of the water heater, the water in the hot water pipe flows into the cold water pipe through the return water pipe or the one-way valve without the return water pipe, the water heater detects the water flow under the action of the booster pump, and the water heater continues to preheat; when the controller detects that T1 is larger than or equal to T4, the controller turns off the booster pump, water flow is not detected in the water heater, and preheating operation is stopped.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. 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 (7)
1. The utility model provides a zero cold water technology system based on real-time temperature control of key point for zero cold water technique of gas heater, its characterized in that includes: the device comprises a temperature sensor, a data processor, a communication sending module, a power supply, a communication receiving module and a controller; the temperature sensor is used for detecting the real-time temperature of water at a key point of the hot water pipeline and outputting corresponding temperature sensing data; the data processor is in communication connection with the temperature sensor and receives and processes temperature sensing data detected by the temperature sensor; the communication sending module modulates and sends the temperature sensing data output by the data processor; the power supply supplies power to the temperature sensor, the data processor and the communication sending module; the communication receiving module is used for receiving the modulated temperature sensing data sent by the communication sending module, demodulating and restoring the temperature sensing data and transmitting the temperature sensing data to the controller; the controller is connected with the communication receiving module and used for receiving and analyzing temperature sensing data and controlling the starting and stopping of the preheating function of the water heater.
2. The zero-cold-water technical system based on the real-time temperature control of the key points is characterized in that the key points are near the farthest hot water supply position of a hot water pipe of a water heater, can be the return pipe and the return point of the water heater, and can be the hot water pipe side of a one-way valve without the return pipe.
3. The zero-cold-water technical system based on real-time temperature control of key points is characterized in that the temperature sensor, the data processor and the communication sending module are arranged at key points of a remote detection pipeline and are powered by the power supply; the communication receiving module and the controller are arranged near the water inlet pipe of the water heater or in the water heater.
4. The zero-cold water technical system based on the real-time temperature control of the key points is characterized in that the temperature sensor is a sensor for measuring the temperature information of the key points of the pipeline, can measure a sensing temperature signal and detect the real-time temperature T1 of the key points of the pipeline, and is in communication connection with the data processor, and the key points of the pipeline are at the designated temperature detection points of the external hot water pipeline of the water heater; the temperature sensor can continuously measure the real-time temperature T1 after the complete machine of the controller equipment is powered off; and after the controller equipment operates, temperature sensing data can be acquired from the temperature sensor through a wireless transmission channel in real time.
5. The system of claim 1, wherein the data processor amplifies, quantizes, etc. the temperature sensing data detected by the temperature sensor, and outputs a temperature sensing data signal with a sufficient peak value to the communication transmission module for modulation transmission.
6. The zero-cold water technical system based on the real-time temperature control of the key points as claimed in claim 1, wherein the controller is capable of performing the transmission interaction of the temperature sensing data between the communication sending module, the communication receiving module and the wireless temperature detecting device, and transmitting the temperature sensing data detected by the temperature sensor to the controller through a wireless transmission channel.
7. The zero-cold water technical system based on the real-time temperature control of the key points is characterized in that the controller controls the water heater to start and stop the preheating operation, when the water heater starts the preheating function and presets a hot water temperature T2, a temperature T3 is preset after attenuation, T4 is T2-T3, the controller rapidly receives and processes the real-time temperature T1 of the key points of the pipeline detected by the temperature sensor through a wireless transmission channel, and when T1 is less than T4, the controller controls the water heater to start the preheating operation; when T1 is more than or equal to T4, the controller controls the water heater to stop preheating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010822805.XA CN111780429A (en) | 2020-08-17 | 2020-08-17 | Zero-cold-water technical system based on real-time temperature control of key points |
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| CN202010822805.XA CN111780429A (en) | 2020-08-17 | 2020-08-17 | Zero-cold-water technical system based on real-time temperature control of key points |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551424A (en) * | 2021-07-14 | 2021-10-26 | 珠海格力电器股份有限公司 | Water heater control method, system and device and water heater |
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Application publication date: 20201016 |