CN111780427B - Gas water heater with water pressure protection function and control method thereof - Google Patents
Gas water heater with water pressure protection function and control method thereof Download PDFInfo
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- CN111780427B CN111780427B CN202010633506.1A CN202010633506A CN111780427B CN 111780427 B CN111780427 B CN 111780427B CN 202010633506 A CN202010633506 A CN 202010633506A CN 111780427 B CN111780427 B CN 111780427B
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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
Abstract
The invention discloses a gas water heater with water pressure protection and a control method thereof, wherein the control method comprises the steps of setting a protection water pressure value and a starting water pressure value; collecting a first real-time water pressure; if the first real-time water pressure is greater than or equal to the protection water pressure value, closing the control water proportional valve, otherwise, maintaining the control water proportional valve in an open state; collecting a second real-time water pressure; and if the second real-time water pressure is greater than or equal to the starting water pressure value, controlling the water proportional valve to maintain a closed state, otherwise, controlling the water proportional valve to open. This technical scheme is at first gathered real-time water pressure, prove pipeline water pressure too high this moment when real-time water pressure is not less than protection water pressure value, need close the water proportional valve and stop intaking to play the effect of protection water route part, need not the relief valve and carry out the pressure release, later gather the real-time water pressure after the water proportional valve closes once more, when real-time water pressure is less than the start water pressure value, prove pipeline water pressure this moment and hang down, can't satisfy the water demand, need open the water proportional valve and start intaking.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a gas water heater with water pressure protection and a control method thereof.
Background
The safety relief valve can be installed at the water inlet joint assembly or the water outlet joint assembly of the existing gas water heater, so that the water flow sensor or the heat exchanger of a water channel is protected, the pipe part is prevented from bursting due to overhigh water pressure, and the internal connection water pipe is damaged. When the pressure of water flow flowing into the water inlet assembly is higher than the pressure relief point of the pressure relief valve, part of water flows out of the pressure relief valve, so that the water pressure is reduced to be lower than the pressure relief point, and the overhigh water pressure is prevented.
But the existence of relief valve among the gas heater has led to another problem again, and when the pressure of intaking was higher, the relief valve carried out the pressure release, does not have special drainage pipe through the water that the relief valve flows out, caused the soaking to the floor very easily.
Disclosure of Invention
The invention aims to provide a gas water heater with water pressure protection and a control method thereof, which are used for solving one or more technical problems in the prior art and at least providing a beneficial selection or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
a control method of a gas water heater with water pressure protection is characterized in that a water proportional valve is installed on a water inlet pipeline of the gas water heater, and the control method comprises the following steps:
As a further improvement of the above technical solution, between step 200 and step 300, the method further includes:
step A, judging whether the gas water heater is in a combustion state, if so, comparing the first real-time water pressure with the protection water pressure value, if the first real-time water pressure is greater than or equal to the protection water pressure value, outputting an alarm prompt signal, returning to the step 200, if the first real-time water pressure is less than the protection water pressure value, controlling the water proportional valve to maintain an open state, returning to the step 200, and if the gas water heater is not in the combustion state, executing the step 300.
As a further improvement of the above technical solution, the protection water pressure value is set according to a maximum pressure resistance value of a water path component of the gas water heater.
As a further improvement of the above technical solution, the starting water pressure value is set according to a minimum value of a range of the water pressure sensor of the gas water heater.
The invention also discloses a gas water heater with water pressure protection, which comprises a water heater body, a water inlet pipeline and a water outlet pipeline, wherein a heat exchanger and a burner are arranged in the water heater body, and the water inlet pipeline and the water outlet pipeline are respectively connected with the heat exchanger;
a water proportional valve and a water pressure sensor for acquiring real-time water pressure are sequentially arranged on the water inlet pipeline along the water inlet direction;
the gas water heater is also provided with a controller, and the controller is respectively connected with the water proportional valve and the water pressure sensor;
the controller includes:
the setting module is used for setting a protection water pressure value and a starting water pressure value;
the first control module is used for controlling the closing action of the water proportional valve according to the comparison result of the real-time water pressure and the protective water pressure value;
and the second control module is used for controlling the opening action of the water proportional valve according to the comparison result of the real-time water pressure and the starting water pressure value.
As a further improvement of the above technical solution, a flame sensing needle for detecting whether the burner is started is further installed inside the water heater body, and the flame sensing needle is connected with the controller;
the controller further comprises an alarm prompting module, and the alarm prompting module is used for outputting an alarm prompting signal according to a comparison result of the real-time water pressure and the protection water pressure value when the gas hot water is in a combustion state.
The invention has the beneficial effects that: this technical scheme is at first gathered real-time water pressure, prove pipeline water pressure too high this moment when real-time water pressure is not less than protection water pressure value, need close the water proportional valve and stop intaking to play the effect of protection water route part, need not the relief valve and carry out the pressure release, later gather the real-time water pressure after the water proportional valve closes once more, when real-time water pressure is less than the start water pressure value, prove pipeline water pressure this moment and hang down, can't satisfy the water demand, need open the water proportional valve and start intaking.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic flow chart of a control method of the present invention;
fig. 2 is a schematic structural view of the gas water heater of the present invention.
Description of reference numerals:
100. the water heater comprises a water heater body, a heat exchanger, a burner, a water inlet pipe, a water outlet pipe, a water proportional valve, a water pressure sensor, a water outlet pipe, a controller, a flame induction needle, a water heater body and a flame induction needle, a water heater, a water heater.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the present application discloses a control method of a gas water heater with water pressure protection, wherein a water proportional valve 210 is installed on a water inlet pipe 200 of the gas water heater, and a first embodiment of the control method comprises the following steps:
Specifically, in this embodiment, gather the real-time water pressure (being first real-time water pressure) of inlet channel 200 at first, work as real-time water pressure is not less than when protecting the water pressure value prove that pipeline water pressure is too high this moment, need close water proportional valve 210 stops intaking to play the effect of protection water route part, need not the relief valve and carry out the pressure release, consequently do not have the situation that water flows from the relief valve, later gather the real-time water pressure (being second real-time water pressure) after water proportional valve 210 closes once more, work as real-time water pressure is less than when starting the water pressure value, prove that pipeline water pressure is too low this moment, can't satisfy the water demand, need open water proportional valve 210 starts intaking.
Further, as a preferred implementation manner, in this embodiment, between the step 200 and the step 300, the method further includes:
step A, judging whether the gas water heater is in a combustion state, if so, comparing the first real-time water pressure with the protection water pressure value, if the first real-time water pressure is greater than or equal to the protection water pressure value, outputting an alarm prompt signal, returning to the step 200, if the first real-time water pressure is less than the protection water pressure value, controlling the water proportional valve 210 to maintain an open state, returning to the step 200, and if the gas water heater is not in the combustion state, executing the step 300.
Specifically, in this embodiment, if the gas water heater is in the combustion state, the water proportional valve 210 does not need to be closed even though the first real-time water pressure is greater than or equal to the protection water pressure value, because if the gas water heater is in the combustion state, it is proved that the user is using the gas water heater, and if the water proportional valve 210 is closed, normal operation of the gas water heater is easily affected, and the experience of the user is affected, so that if the gas water heater is in the combustion state and the first real-time water pressure is greater than or equal to the protection water pressure value, the user only needs to output an alarm prompt signal externally to remind the user to take other measures to reduce the real-time water pressure of the water inlet pipe 200.
In a further preferred embodiment, in the present embodiment, the protection water pressure value is set according to a maximum pressure resistance value of a water passage component of the gas water heater.
In a further preferred embodiment, in the present embodiment, the starting water pressure value is set according to a minimum value of the range of the water pressure sensor 220 of the gas water heater.
Referring to fig. 2, the application also discloses a gas water heater with water pressure protection, and a first embodiment of the gas water heater includes a water heater body 100, a water inlet pipe 200 and a water outlet pipe 300, a heat exchanger 110 and a burner 120 are installed inside the water heater body 100, and the water inlet pipe 200 and the water outlet pipe 300 are respectively connected with the heat exchanger 110;
a water proportional valve 210 and a water pressure sensor 220 for acquiring real-time water pressure are sequentially arranged on the water inlet pipeline 200 along the water inlet direction;
the gas water heater is further provided with a controller 400, and the controller 400 is respectively connected with the water proportional valve 210 and the water pressure sensor 220;
the controller 400 includes:
the setting module is used for setting a protection water pressure value and a starting water pressure value;
the first control module is used for controlling the closing action of the water proportional valve 210 according to the comparison result of the real-time water pressure and the protective water pressure value;
and the second control module is used for controlling the opening action of the water proportional valve 210 according to the comparison result of the real-time water pressure and the starting water pressure value.
Further, in a preferred embodiment, in the present embodiment, a flame sensing pin 500 for detecting whether the burner 120 is started is further installed inside the water heater body 100, and the flame sensing pin 500 is connected to the controller 400;
the controller 400 further comprises an alarm prompting module, and the alarm prompting module is used for outputting an alarm prompting signal according to a comparison result of the real-time water pressure and the protection water pressure value when the gas hot water is in a combustion state. In this embodiment, the alarm prompt module may output the alarm prompt signal through the display 600 disposed on the water heater body 100.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (5)
1. A control method of a gas water heater with water pressure protection is characterized in that: a water proportional valve is installed on a water inlet pipeline of the gas water heater, and the control method comprises the following steps:
step 100, setting a protection water pressure value and a starting water pressure value;
step 200, collecting real-time water pressure of a water inlet pipeline, and defining the collected real-time water pressure as a first real-time water pressure;
step 300, comparing the first real-time water pressure with the protection water pressure value, if the first real-time water pressure is greater than the protection water pressure value, controlling the water proportional valve to be closed, if the first real-time water pressure is less than the protection water pressure value, controlling the water proportional valve to be kept in an open state, and returning to the step 200;
between the step 200 and the step 300, the method further includes:
step A, judging whether the gas water heater is in a combustion state, if so, comparing the first real-time water pressure with the protection water pressure value, if so, outputting an alarm prompt signal, returning to the step 200, if not, controlling the water proportional valve to maintain an open state, returning to the step 200, and if not, executing the step 300;
step 400, collecting the real-time water pressure of the water inlet pipeline after the water proportional valve is closed, and defining the collected real-time water pressure as a second real-time water pressure;
step 500, comparing the second real-time water pressure with the starting water pressure value, if the second real-time water pressure is greater than the starting water pressure value, controlling the water proportional valve to maintain a closed state, returning to the step 400, and if the second real-time water pressure is less than the starting water pressure value, controlling the water proportional valve to open, and returning to the step 200.
2. The control method of the gas water heater with the water pressure protection function according to claim 1, characterized in that: the protection water pressure value is set according to the maximum pressure resistance value of the water path part of the gas water heater.
3. The control method of the gas water heater with the water pressure protection function according to claim 1, characterized in that: the starting water pressure value is set according to the minimum value of the range of the water pressure sensor of the gas water heater.
4. The utility model provides a take gas heater of water pressure protection which characterized in that: the water heater comprises a water heater body (100), a water inlet pipeline (200) and a water outlet pipeline (300), wherein a heat exchanger (110) and a burner (120) are installed inside the water heater body (100), and the water inlet pipeline (200) and the water outlet pipeline (300) are respectively connected with the heat exchanger (110);
a water proportional valve (210) and a water pressure sensor (220) for collecting real-time water pressure are sequentially arranged on the water inlet pipeline (200) along the water inlet direction;
the gas water heater is also provided with a controller (400), the controller (400) is respectively connected with the water proportional valve (210) and the water pressure sensor (220), and the controller (400) is used for executing the control method of the gas water heater with the water pressure protection as claimed in any one of claims 1 to 3 so as to control the on-off state of the water proportional valve (210) according to the water pressure acquired by the water pressure sensor (220) in real time;
the controller (400) includes:
the setting module is used for setting a protection water pressure value and a starting water pressure value;
the first control module is used for controlling the closing action of the water proportional valve (210) according to the comparison result of the real-time water pressure and the protective water pressure value;
and the second control module is used for controlling the opening action of the water proportional valve (210) according to the comparison result of the real-time water pressure and the starting water pressure value.
5. The gas water heater with water pressure protection of claim 4, characterized in that: a flame induction needle (500) for detecting whether the burner (120) is started is further mounted inside the water heater body (100), and the flame induction needle (500) is connected with the controller (400);
the controller (400) further comprises an alarm prompting module, and the alarm prompting module is used for outputting an alarm prompting signal according to a comparison result of the real-time water pressure and the protection water pressure value when the gas hot water is in a combustion state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633506.1A CN111780427B (en) | 2020-07-02 | 2020-07-02 | Gas water heater with water pressure protection function and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633506.1A CN111780427B (en) | 2020-07-02 | 2020-07-02 | Gas water heater with water pressure protection function and control method thereof |
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| Publication Number | Publication Date |
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| CN111780427A CN111780427A (en) | 2020-10-16 |
| CN111780427B true CN111780427B (en) | 2021-08-03 |
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| CN2545527Y (en) * | 2002-05-13 | 2003-04-16 | 王荣华 | Water heater capable of controlling internal chamber pressure |
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| CN207422685U (en) * | 2017-09-07 | 2018-05-29 | 深圳市基信机械自动化有限公司 | A kind of gas heater detects safety device |
| CN109099594A (en) * | 2018-08-29 | 2018-12-28 | 珠海格力电器股份有限公司 | A kind of gas-heating water heater automatic water filling and automatic drain system |
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2020
- 2020-07-02 CN CN202010633506.1A patent/CN111780427B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545527Y (en) * | 2002-05-13 | 2003-04-16 | 王荣华 | Water heater capable of controlling internal chamber pressure |
| CN200955872Y (en) * | 2006-01-23 | 2007-10-03 | 夏敖敖 | Micro artesian vacuum pipe solar water heater |
| KR20080050651A (en) * | 2006-12-04 | 2008-06-10 | 주식회사 경동나비엔 | Low pressure closed type boiler and the control method thereof |
| WO2009107923A1 (en) * | 2008-02-29 | 2009-09-03 | Kyungdong Navien Co., Ltd. | Gas boiler having closed-type cistern tank |
| CN201311094Y (en) * | 2008-08-24 | 2009-09-16 | 浙江康泉电器有限公司 | Electric heater with pressure protection device |
| CN102788183A (en) * | 2011-05-17 | 2012-11-21 | 上海天净管业有限公司 | Automatic hydraulic-regulating waterway protection system |
| CN106610134A (en) * | 2015-10-21 | 2017-05-03 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method |
| CN205577020U (en) * | 2016-05-09 | 2016-09-14 | 佛山市云米电器科技有限公司 | Take water pressure detection mechanism's water system |
| CN207422685U (en) * | 2017-09-07 | 2018-05-29 | 深圳市基信机械自动化有限公司 | A kind of gas heater detects safety device |
| CN109099594A (en) * | 2018-08-29 | 2018-12-28 | 珠海格力电器股份有限公司 | A kind of gas-heating water heater automatic water filling and automatic drain system |
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| CN111780427A (en) | 2020-10-16 |
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