CN111256367B - Gas water heater and control method thereof - Google Patents
Gas water heater and control method thereof Download PDFInfo
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- CN111256367B CN111256367B CN201811450593.6A CN201811450593A CN111256367B CN 111256367 B CN111256367 B CN 111256367B CN 201811450593 A CN201811450593 A CN 201811450593A CN 111256367 B CN111256367 B CN 111256367B
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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
- F24H9/0005—Details for water heaters
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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
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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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 relates to a gas water heater, which comprises a fan, an air supply pipe, a bubble water generating device and a water supply pipe, wherein the inlet of the air supply pipe is connected with the outlet of the fan, the bubble water generating device is connected between a water outlet pipeline of the gas water heater and the outlet of the air supply pipe, and the water supply pipe is communicated with the bubble water generating device. The gas water heater directly introduces the air quantity generated by the fan into the bubble generating device, provides air for the bubble water generating device, fully utilizes the working energy of the gas water heater, and does not need to be additionally connected with other air supply devices. The invention also relates to a control method of the gas water heater, which adjusts the air supply amount in the air supply pipe according to the water flow data and the bubble water level data. The control method of the gas water heater can adjust the air supply quantity in the air supply pipe at any time according to the water flow data and the bubble water level data, so that the bubble quantity in the bubble water is adjustable, different requirements of users are met, the use flexibility is higher, and the application range is wider.
Description
Technical Field
The invention relates to a gas water heater capable of generating bubble water and a control method of the gas water heater.
Background
With the improvement of living standard, people have higher and higher requirements on gas water heaters, for example, users have further requirements on water saving, environmental protection, comfort, health and the like besides the requirement on providing hot water for the water heaters. Chinese utility model patent "water heater system" with grant publication No. CN206905302U (application No. 201720329757.4), wherein the disclosed water heater system includes: a heating unit capable of heating water; the tank body can be communicated with the heating unit, at least one inlet and at least one outlet are formed in the tank body, and at least one of gas and water can enter the tank body through the inlet; a pressurized source capable of pressurizing the tank, the pressurized source capable of providing a pressure at which the gas and water in the tank mix. The utility model provides a pair of water heater system can use in current arbitrary water heater, including electric water heater, gas heater, solar water heater and air ability water heater etc. it can generate little bubble water and supply the user to use, can not only the environmental protection of economizing on water, moreover little bubble water has stronger cleaning performance to user's use experience has been improved greatly. When the water heater system works, micro-bubble water can be provided for a user, but the generation of the micro-bubble water needs to be finished by additionally using a pressurization source to cooperate with pressurization under the condition of introducing gas after a certain amount of water is stored in one tank body, so that the amount of gas to be introduced is large, the required gas pressure is also large, and in addition, the tank body occupies a large space during installation, and the micro-bubble water heater system is not suitable for being installed and used in a small gas water heater. In addition, the water heater system cannot adjust the amount of bubbles in the micro-bubble water as required, the adjustability of use is low, and the applicability range is limited.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a gas water heater capable of fully utilizing energy in a hot gas water heater to generate bubble water, aiming at the above prior art.
The second technical problem to be solved by the present invention is to provide a gas water heater capable of adjusting the amount of bubbles as required, in view of the above prior art.
The third technical problem to be solved by the present invention is to provide a gas water heater which can generate bubble water in the process of water flowing and has a small installation volume of the bubble water generating device, aiming at the prior art.
A fourth technical problem to be solved by the present invention is to provide a control method for a gas water heater capable of adjusting the amount of bubbles as required, in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a gas water heater comprises
A fan;
the method is characterized in that: also comprises
The inlet of the air supply pipe is connected with the outlet of the fan;
the bubble water generating device is connected between a water outlet pipeline of the gas water heater and an outlet of the gas supply pipe;
and the water supply pipe is communicated with the bubble water generating device.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the gas supply pipe is provided with a gas quantity regulating valve.
The air quantity regulating valve comprises a cylinder body with an air channel, a regulating piece arranged in the cylinder body and a driver for driving the regulating piece to reciprocate along the air channel, an inlet of the air channel is connected with an outlet of the fan, the regulating piece is arranged in an outlet section of the air channel, and a gap between the periphery of the regulating piece and the inner wall of the outlet section of the air channel changes along with the movement of the regulating piece.
Preferably, the driver is an electromagnet, and the adjusting piece is provided with a metal part which is repellent to the electromagnet.
In order to detect the air flow in the air supply pipe in real time, a gas flow sensor is arranged on the air supply pipe and is arranged at the downstream of the air flow regulating valve.
In order to increase the air supply pressure and increase the generation amount of bubbles, the air supply pipe is provided with a booster pump.
Preferably, the booster pump is arranged close to the air inlet of the bubble water generating device.
In order to detect whether the bubble water meets the set requirement, a detection bypass is connected to the water supply pipe, an inlet and an outlet of the detection bypass are respectively communicated with the water outlet pipe, and a bubble detector is arranged on the detection bypass.
In order to prevent bubble water in the water supply pipe from flowing back to the detection bypass, a check valve is further arranged on the detection bypass.
In order to avoid the influence on bubbles in water, an included angle between the axis of the inlet section of the detection bypass and the axis of the water supply pipe is an acute angle.
Preferably, the angle between the axis of the inlet section of the detection bypass and the axis of the water supply pipe is 45 °.
The technical scheme adopted by the invention for solving the third technical problem is as follows: the bubble water generating device comprises an inner pipe and an outer shell sleeved outside the inner pipe, the two ends of the outer shell and the inner pipe are hermetically connected, a bubble water flow passage is arranged between the middle part of the outer shell and the middle part of the inner pipe, a connector is formed on the outer shell corresponding to the bubble water flow passage, and the connector is connected with an inlet of a water supply pipe; the inner pipe is provided with a small hole on the peripheral wall of one end close to the connecting air supply pipe, and the inner pipe is communicated with the bubble water flow channel through the small hole.
In order to further reduce the diameter of the bubbles and increase the amount of the bubbles, the peripheral wall of the inner pipe is convexly provided with a circle of flange which is positioned at the downstream of the outlet of the small hole.
The technical scheme adopted by the invention for solving the fourth technical problem is as follows: a control method of a gas water heater is characterized by comprising the following steps: and adjusting the air supply amount in the air supply pipe according to the water flow data and the bubble water level data.
In order to fully utilize the energy generated in the working process of the gas water heater, the current fan rotating speed data is collected in the working state of the gas water heater, and then the opening of the air quantity regulating valve is regulated according to the water flow data, the bubble water level data and the fan rotating speed data, so that the regulation of the air supply quantity in the air supply pipe is realized.
In order to meet the requirement that the gas water heater supplies cold water and bubble water, the rotating speed of the fan is adjusted according to water flow data and bubble water gear data under the condition that the gas water heater does not work, and meanwhile, the air quantity adjusting valve is controlled to be fully opened, so that the air supply quantity in the air supply pipe is adjusted.
Detecting water flow and air flow in an air supply pipe in real time, and calculating current ratio data k of water and air; the K is matched with the water and air ratio threshold range K corresponding to the current bubble water adjusting gear iiAnd comparing to realize negative feedback regulation of the air supply quantity in the air supply pipe.
When the air flow is detected to be small, K is greater than KiMaximum value of KimaxWhen it is, it is increasedOpening degree of the air quantity regulating valve or rotating speed of the fan is increased;
however, when the amount of air is large, K is smaller than KiMinimum value of KiminAnd in time, the opening degree of the air quantity regulating valve is reduced or the rotating speed of the fan is reduced.
To monitor the quality of the bubble water, K is at KiWhen the bubble water generating device is in the range, whether the current bubble water meets the set requirement is detected through the bubble detector, and if not, the booster pump is started to increase the gas pressure entering the bubble water generating device.
In order to conveniently judge the fault of the bubble water generating device, after the booster pump is started, whether the current bubble water meets the set requirement is detected in real time, meanwhile, the working time of the booster pump is timed, and if the working time of the booster pump reaches the set time threshold T and the bubble water still does not meet the set requirement, the booster pump is closed and the fault of the bubble water generating device is prompted.
In order to guarantee the basic water demand of the user, in the case that the bubble water is needed, the current water flow rate L is detected, and if the current water flow rate L is less than the set minimum water flow rate L0 for use of the bubble water, the air quantity adjusting valve is closed.
Compared with the prior art, the invention has the advantages that: the gas water heater in the invention connects the bubble water generating device with the fan outlet of the gas water heater, so that the air quantity in the fan can be directly introduced into the bubble generating device, the fan can meet the combustion requirement of the gas water heater, and can also provide air for the bubble water generating device, the working energy of the gas water heater is fully utilized, and other air supply devices do not need to be additionally connected.
In addition, the bubble water generating device is not made into a tank body with a large space, but is made into a tubular body connected among a water outlet pipeline of the gas water heater, an outlet of the air supply pipe and an inlet of the water supply pipe, water and air are respectively introduced from two ends of the bubble water generating device, and bubble water is directly generated in the water flowing process and flows out of the water supply pipe. The structure occupies a small space, does not need to specially store water to generate bubble water, has low requirement on air pressure during ventilation, and controls more accurate bubble quantity.
The control method of the gas water heater can adjust the air supply quantity in the air supply pipe at any time according to the water flow data and the bubble water level data, so that the bubble quantity in the bubble water is adjustable, different requirements of users are met, the use flexibility is higher, and the application range is wider.
Drawings
Fig. 1 is a schematic structural diagram of a gas water heater in an embodiment of the invention.
Fig. 2 is a sectional view of an air quantity regulating valve in the embodiment of the invention.
Fig. 3 is a flow chart of a control method of the gas water heater in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 and 2, the gas water heater in the present embodiment includes a gas water heater body, a blower 1, a gas supply pipe 2, a bubble water generating device 3, a water supply pipe 4, a gas amount adjusting valve 5, a gas flow sensor 6, a booster pump 7, a detection bypass 8, a bubble detector 9, and a check valve 10.
The gas water heater body is the same as the existing gas water heater and comprises a combustor, a heat exchanger, a connecting pipeline and the like.
The blower 1 in this embodiment can supply air to the burner and also supply air to the bubble water generating device 3 through the air supply pipe 2. In order to effectively guide the air flow direction of the fan 1, a partition plate is arranged at the outlet of the fan 1 in the embodiment to separate the outlet of the fan 1 into two air output channels, wherein one air output channel is used for connecting a burner, and the other air output channel is used for connecting an air supply pipe 2, so as to provide air for the bubble water generating device 3.
The inlet of the air supply pipe 2 is connected with an air output channel of the fan 1, and the outlet of the air supply pipe 2 is connected with the air supply port of the bubble water generating device 3. An air quantity regulating valve 5, an air flow sensor 6 and a booster pump 7 are respectively arranged on the air supply pipe 2 along the air flowing direction.
The air volume adjusting valve 5 is used for adjusting the opening of the air supply pipe 2, and further controlling the air supply volume to the bubble water generating device 3. The air quantity regulating valve 5 can adopt various existing air quantity regulating valve 5 products. The air quantity adjusting valve 5 in this embodiment has a cylinder 51 with an air passage 50, an adjusting member 52 provided in the cylinder 51, and an actuator 53 for driving the adjusting member 52 to reciprocate along the air passage 50.
The cylinder body 51 is provided with an axially arranged cavity therein, one end of the cylinder body 51 is opened, and the cylinder body 51 is further provided with an air inlet cavity communicated with the cavity along the radial direction, so that the air inlet cavities of the cavity can jointly form an air channel 50, the port of the air inlet cavity forms the inlet of the air channel 50, and the inlet of the air channel 50 is connected with the outlet of the fan 1. The regulating member 52 is disposed in the outlet section of the gas passage 50, i.e., the regulating member 52 is installed at a position of the cavity near the opening. The adjustment member 52 in this embodiment is in the form of an inverted umbrella with respect to the cavity. The rear end of the adjusting member 52 is connected to an actuator 53 through a driving rod, the actuator 53 is disposed at the rear of the cylinder 51, and the driving rod is extended out of the cylinder 51 to be connected to the actuator 53. The electromagnets in this embodiment generate different magnetic forces due to different currents. The driving rod may be made of metal, or the adjusting member 52 may have a metal portion that is repellent to the electromagnet, so that the adjusting member 52 can move back and forth relative to the cavity according to different magnetic forces of the electromagnet, so that the gap between the periphery of the adjusting member 52 and the inner wall of the outlet section of the gas channel 50 is changed along with the movement of the adjusting member 52, thereby adjusting the ventilation amount.
The gas flow rate sensor 6 is used to detect the amount of air introduced into the bubble water generator 3, and the gas flow rate sensor 6 may be any of various conventional gas flow rate sensors.
The booster pump 7 can adopt various existing booster pump 7 products, and the booster pump 7 is arranged close to the air inlet of the bubble water generating device 3. This booster pump 7 is arranged in realizing the pressure boost effect to letting in gaseous among the bubble water generating device 3, can improve the bubble volume that bubble water generating device 3 produced like this.
The bubble water generating device 3 in this embodiment is tubular as a whole, the bubble water generating device 3 includes an inner tube 31 and an outer shell 32 sleeved outside the inner tube 31, and the outer shell 32 is also tubular, so that the bubble water generating device 3 can be used as a pipeline at one end to be connected with the water outlet pipeline 11, the air supply pipe 2 and the water supply pipe 4 of the gas water heater, and the installation volume of the bubble water generating device 3 is effectively reduced. The bubble water generating device 3 can generate bubble water in the flowing process of water and generate the action of the introduced gas, and then the bubble water is changed into the bubble water, namely the bubble water is generated in the flowing process of the water, the unit water flow rate of the generated bubbles is small, the generation of the bubble water can be completed even under the condition that the booster pump 7 is not used in the structure, meanwhile, the unit gas amount required to be introduced is small, the required gas pressure is small, and the bubble water generating device is suitable for being installed and used in a small gas water heater.
The outer case 32 is hermetically connected to both ends of the inner pipe 31, a gap is formed between the outer case 32 and the middle portion of the inner pipe 31, the gap forms a bubble water flow passage 33, and a connection port 321 is formed on the outer case 32 corresponding to the bubble water flow passage 33, the connection port 321 being connected to an inlet of the water supply pipe 4. The inner tube 31 has a small hole 311 on its peripheral wall near one end connected to the air supply tube 2, and the inner tube 31 is connected to the bubble water flow passage 33 through the small hole 311. In this embodiment, the water outlet pipe of the gas water heater is embedded in the inner pipe 31, and the outlet end of the gas supply pipe 2 is sleeved on the end of the outer casing 32. The gas and the water enter the inner tube 31 through the opposite ends, and the gas and the water are mixed in the inner tube 31 to form bubble water.
In addition, a peripheral flange 312 is convexly provided on the outer peripheral wall of the inner tube 31, and the flange 312 is located at the downstream of the outlet of the small hole 311, so that the flange 312 can reduce the passing diameter of the bubbles, can further extrude the large bubbles into small bubbles, reduce the diameter of the bubbles, and increase the amount of the bubbles.
Detect bypass 8 and connect in the one side of delivery pipe 4, the entry and the export that detect bypass 8 are linked together with the outlet pipe respectively, and for the flow direction of bubble water, the axis that detects the entry section of bypass 8 and the contained angle between the axis of delivery pipe 4 are the acute angle. In this embodiment, the angle between the axis of the inlet section of the detection bypass 8 and the axis of the water supply pipe 4 is 45 °. Through this contained angle setting, can guarantee that bubble water enters into smoothly and detects the bypass 8 to bubble water gets into the in-process that detects bypass 8 and can not arouse the fracture of bubble, guarantees the accuracy of follow-up detection. The detection bypass 8 is provided with a bubble detector 9 for detecting bubble parameters in the bubble water, such as bubble quantity, bubble diameter and other parameters, and further judging whether the current bubble water meets the setting requirements. The bubble detector 9 may be any of various existing products of the bubble detector 9. A check valve 10 is further arranged on the detection bypass 8 at a position close to the outlet, and the check valve 10 can prevent bubble water in the water supply pipe 4 from flowing back to the detection bypass 8 to influence the detection result.
As shown in fig. 3, the control method of the gas water heater in the present embodiment adjusts the air supply amount in the air supply pipe 2 according to the water flow data and the bubble water level data. And under the working state of the gas water heater, acquiring the current rotating speed data of the fan 1, and adjusting the opening of the air quantity adjusting valve 5 according to the water flow data, the bubble water level data and the rotating speed data of the fan 1 to realize the adjustment of the air supply quantity in the air supply pipe 2. And under the condition that the gas water heater does not work, the rotating speed of the fan 1 is adjusted according to water flow data and bubble water level data, and meanwhile, the air quantity adjusting valve 5 is controlled to be fully opened, so that the air supply quantity in the air supply pipe 2 is adjusted.
The control method of the gas water heater specifically comprises the following steps:
s1, setting an initial bubbling water regulating gear array M to [1,2, …, i, … M ];
wherein i and m are natural numbers, i is more than or equal to 1 and less than or equal to m, m is more than or equal to 1, and a water and air ratio threshold range K corresponding to each bubble water adjusting gear i is initializedi；
S2, detecting a bubble water demand switch signal;
if bubble water is required, go to S3;
if the gas water heater does not need bubble water, simultaneously judging whether the gas water heater is started to work, if the gas water heater is started to work, controlling to close the gas quantity regulating valve 5, so that air sent out from the outlet of the fan 1 cannot enter the bubble water generating device 3, and no bubble water is generated, and the gas water heater works according to a conventional working mode;
s3, detecting and obtaining the current water flow L in the water outlet pipe of the gas water heater, comparing the water flow L with the set minimum water flow L0 for bubble water, and if L is less than L0, closing the air quantity regulating valve 5, so that excessive bubbles in the water flow can be avoided, and the basic water demand of a user is ensured;
if L is more than or equal to L0, S4 is carried out;
s4, judging whether the gas water heater is started to work, if so, carrying out S5; if not, go to S10;
s5, acquiring current rotating speed data of the fan 1, and acquiring current bubble water regulating gear i data;
s6, adjusting the opening of the air quantity adjusting valve 5 according to the water flow data, the bubble water level data and the rotating speed data of the fan 1, and further controlling the air flow quantity output to the bubble water generating device 3; the minimum rotating speed of the fan 1 is high in the working process of the gas water heater, so that the requirement for generating the air flow of the bubble water and the requirement for combustion are met sufficiently, the air flow output to the bubble water generating device 3 is adjusted only by adjusting the opening degree of the air flow adjusting valve 5, and the air flow requirement for generating the bubble water can be met without reaching a fully open state by adjusting the air flow adjusting valve 5;
s7, acquiring current air flow data output to the bubble water generating device 3, and calculating current water-air ratio data k according to the current water flow and the air flow data;
s8, adjusting K to be within the water-air ratio threshold range K corresponding to the current bubble water adjusting gear iiComparing to realize negative feedback regulation of the air supply quantity in the air supply pipe 2;
the concrete method of the negative feedback regulation of the air supply amount in the air supply pipe 2 is as follows: when K is greater than KiMaximum value of KimaxWhen the air quantity is increased, the opening degree of the air quantity adjusting valve 5 is increased or the rotating speed of the fan 1 is increased;
when K is less than KiMinimum value of KiminAnd in the meantime, the opening degree of the air quantity regulating valve 5 is reduced or the rotating speed of the fan 1 is reduced.
S9, when K is at KiWhen the bubble water is in the range, the bubble detector 9 is used for detecting whether the current bubble water meets the set requirement, and if not, the booster pump 7 is started to increaseAdding the gas pressure in the bubble water generating device 3;
after the booster pump 7 is started, detecting whether the current bubble water meets the set requirement in real time, timing the working time of the booster pump 7, and if the working time of the booster pump 7 reaches the set time threshold T and the bubble water still does not meet the set requirement, closing the booster pump 7 and prompting the bubble water generating device 3 to have a fault, so that a user can conveniently obtain the fault information of the bubble water generating device 3 in time;
s10, acquiring data of a current bubble water regulating gear i;
s11, at the moment, parts such as a burner in the gas water heater do not work, and only the fan 1 is started to provide air for the bubble water generating device 3; therefore, the rotating speed of the fan 1 is adjusted according to water flow data and bubble water level data, and the air quantity adjusting valve 5 is controlled to be fully opened at the same time, so that the adjustment of the air supply quantity in the air supply pipe 2 is realized, and at the moment, the rotating speed of the fan 1 can meet the requirement of the air quantity in the bubble water generating device 3 when working at a lower rotating speed;
then, S7 is performed.
The control method of the gas water heater can adjust the air supply quantity in the air supply pipe 2 at any time according to the water flow data and the bubble water level data, so that the bubble quantity in the bubble water is adjustable, different requirements of users are met, the use flexibility is higher, and the application range is wider.
Claims (20)
1. A gas water heater comprises
A fan (1);
the method is characterized in that: also comprises
The inlet of the air supply pipe (2) is connected with the outlet of the fan (1);
the bubble water generating device (3) is connected between a water outlet pipeline (11) of the gas water heater and an outlet of the gas supply pipe (2);
a water supply pipe (4) communicated with the bubble water generating device (3);
the bubble water generating device (3) comprises an inner pipe (31) and an outer shell (32) sleeved outside the inner pipe (31), the two ends of the outer shell (32) and the inner pipe (31) are hermetically connected, a bubble water flow channel (33) is arranged between the middle parts of the outer shell (32) and the inner pipe (31), an interface (321) is formed on the outer shell (32) corresponding to the bubble water flow channel (33), and the interface (321) is connected with an inlet of the water supply pipe (4); the inner pipe (31) is provided with a small hole (311) on the peripheral wall of one end close to the connecting air supply pipe (2), and the inner pipe (31) is communicated with the bubble water flow passage (33) through the small hole (311).
2. The gas water heater of claim 1, wherein: the gas supply pipe (2) is provided with a gas quantity regulating valve (5).
3. The gas water heater of claim 2, wherein: the air quantity adjusting valve (5) comprises a cylinder body (51) with an air channel (50), an adjusting piece (52) arranged in the cylinder body (51), and a driver (53) for driving the adjusting piece (52) to reciprocate along the air channel (50), wherein the inlet of the air channel (50) is connected with the outlet of the fan (1), the adjusting piece (52) is arranged in the outlet section of the air channel (50), and the gap between the periphery of the adjusting piece (52) and the inner wall of the outlet section of the air channel (50) changes along with the movement of the adjusting piece (52).
4. The gas water heater of claim 3, wherein: the driver (53) is an electromagnet, and the adjusting piece (52) is provided with a metal part which is repellent to the electromagnet.
5. The gas water heater of claim 2, wherein: the gas supply pipe (2) is provided with a gas flow sensor (6), and the gas flow sensor (6) is arranged at the downstream of the gas quantity regulating valve (5).
6. The gas water heater of claim 1, wherein: the air supply pipe (2) is provided with a booster pump (7).
7. The gas water heater of claim 6, wherein: the booster pump (7) is arranged close to the air inlet of the bubble water generating device (3).
8. The gas water heater of claim 1, wherein: the water supply pipe (4) is connected with a detection bypass (8), an inlet and an outlet of the detection bypass (8) are respectively communicated with the water outlet pipe, and the detection bypass (8) is provided with a bubble detector (9).
9. The gas water heater of claim 8, wherein: the detection bypass (8) is also provided with a one-way valve (10).
10. The gas water heater of claim 8, wherein: and an included angle between the axis of the inlet section of the detection bypass (8) and the axis of the water supply pipe (4) is an acute angle.
11. The gas water heater of claim 10, wherein: and the included angle between the axis of the inlet section of the detection bypass (8) and the axis of the water supply pipe (4) is 45 degrees.
12. The gas water heater of any one of claims 1 to 11, wherein: a circle of flange (312) is convexly arranged on the peripheral wall of the inner pipe (31), and the flange (312) is positioned at the downstream of the outlet of the small hole (311).
13. A control method of a gas water heater as claimed in any one of claims 1 to 12, characterized in that: and adjusting the air supply amount in the air supply pipe (2) according to the water flow data and the bubble water level data.
14. The control method of a gas water heater according to claim 13, wherein: and under the working state of the gas water heater, acquiring the current rotating speed data of the fan (1), and adjusting the opening of the air quantity adjusting valve (5) according to the water flow data, the bubble water level data and the rotating speed data of the fan (1) to realize the adjustment of the air supply quantity in the air supply pipe (2).
15. The control method of a gas water heater according to claim 13, wherein: and under the condition that the gas water heater does not work, the rotating speed of the fan (1) is adjusted according to water flow data and bubble water level data, and meanwhile, the air quantity adjusting valve (5) is controlled to be fully opened, so that the air supply quantity in the air supply pipe (2) is adjusted.
16. The control method of a gas water heater according to claim 13, wherein: detecting water flow and air flow in the air supply pipe (2) in real time, and calculating the current ratio data k of water to air; the K is matched with the water and air ratio threshold range K corresponding to the current bubble water adjusting gear iiAnd comparing to realize negative feedback adjustment of the air supply quantity in the air supply pipe (2).
17. The control method of a gas water heater according to claim 16, wherein: when K is greater than KiMaximum value of KimaxWhen the air quantity adjusting valve (5) is opened, the opening degree of the air quantity adjusting valve is increased or the rotating speed of the fan (1) is increased;
when K is less than KiMinimum value of KiminAnd in the process, the opening degree of the air quantity regulating valve (5) is reduced or the rotating speed of the fan (1) is reduced.
18. The control method of a gas water heater according to claim 17, wherein: when K is at KiWhen the bubble water pressure is within the range, whether the current bubble water meets the set requirement is detected through the bubble detector (9), and if not, the booster pump (7) is started to increase the gas pressure entering the bubble water generating device (3).
19. The control method of a gas water heater according to claim 18, wherein: after the booster pump (7) is started, whether the current bubble water meets the set requirement is detected in real time, meanwhile, the working time of the booster pump (7) is timed, and if the working time of the booster pump (7) reaches the set time threshold T and the bubble water still does not meet the set requirement, the booster pump (7) is closed and the bubble water generating device (3) is prompted to break down.
20. The control method of a gas water heater according to claim 13, wherein: in the case that bubble water is needed, the current water flow rate L is detected, and if the current water flow rate L is smaller than the set minimum water flow rate L0 for use of bubble water, the air quantity adjusting valve (5) is closed.
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| CN201811450593.6A CN111256367B (en) | 2018-11-30 | 2018-11-30 | Gas water heater and control method thereof |
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| CN111256367B true CN111256367B (en) | 2021-10-26 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002085276A (en) * | 2000-09-14 | 2002-03-26 | Matsushita Electric Ind Co Ltd | Bathtub connecting device for bubbling device |
| CN2776565Y (en) * | 2005-01-28 | 2006-05-03 | 张翔宇 | Pressurized energy saving sprayer head |
| CN200977068Y (en) * | 2006-11-10 | 2007-11-21 | 李兴荣 | Forced convection heat-exchanging generator |
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| CN111256367A (en) | 2020-06-09 |
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