CN111435038B - Water heater device with anti-freezing function and anti-freezing method thereof - Google Patents
Water heater device with anti-freezing function and anti-freezing method thereof Download PDFInfo
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- CN111435038B CN111435038B CN201910030213.1A CN201910030213A CN111435038B CN 111435038 B CN111435038 B CN 111435038B CN 201910030213 A CN201910030213 A CN 201910030213A CN 111435038 B CN111435038 B CN 111435038B
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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Abstract
The invention relates to a water heater device with an anti-freezing function, which comprises a water pipe and a heat exchanger, wherein the middle part of the water pipe is connected with the heat exchanger, the water pipe is provided with a water inlet part positioned at the upstream of the heat exchanger and a water outlet part positioned at the downstream of the heat exchanger, the water inlet part is provided with a first electromagnetic valve, and the water heater device further comprises a second electromagnetic valve, a first thermostatic valve, a third electromagnetic valve, a second thermostatic valve, a siphon pipe, a fourth electromagnetic valve, a third thermostatic valve and a fourth thermostatic valve. The water outlet part of the invention is connected with the inverted U-shaped siphon, the electromagnetic valve and the thermostatic valve which can be mutually matched in a non-use mode respectively to control whether the siphon is started or not when the temperature is higher than or lower than the first temperature and the water heater device is powered on or powered off, so that the water heater device automatically abandons the siphon when the room temperature is higher than a certain temperature, and automatically starts the siphon to drain accumulated water in the water pipe when the room temperature is lower than the certain temperature, thereby avoiding the problem that the water pipe is cold-cracked due to a large amount of accumulated water in the water pipe, saving energy and being convenient to use.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a water heater device with an anti-freezing function and an anti-freezing method thereof.
Background
The household gas water heater is a common hot water supply device in daily life, has the advantages of quick hot water discharge, constant water temperature, less scale formation, small occupied area, no influence of water quantity and the like, and is deeply favored by consumers.
However, in winter, the water heater has the risk of being frozen and cracked due to low temperature. In order to solve the problem in the prior art, an anti-freezing device, namely a heating ceramic block or a magnesium rod, is usually added on a water heater, and the anti-freezing device can achieve a good anti-freezing effect when being used in a power-on state, but the water heater needs to be kept in the power-on state all the time, and electric energy is wasted. If the water heater is powered off when not in use, the anti-freezing device is invalid, but a large amount of accumulated water is still left in the water pipe, and the accumulated water is easy to solidify in a low-temperature state, so that the water pipe cannot be quickly and normally erected, and the risk of burst of the water pipe exists.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a water heater device which can drain accumulated water in a water pipe at a low temperature so as to prevent the water pipe from frost cracking.
Another technical problem to be solved by the present invention is to provide an anti-freezing method for a water heater apparatus, which can empty water in a water pipe at a low temperature state and close an anti-freezing structure at a non-low temperature state, and is energy-saving and convenient to use.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a water heater device with prevent frostbite function, includes water pipe and heat exchanger, the middle part of water pipe is connected with the heat exchanger, according to the rivers direction, the water pipe has the part of intaking that is located the heat exchanger upstream and is located the play water part of heat exchanger low reaches, be provided with first solenoid valve, its characterized in that on the part of intaking: also comprises
The water inlet part of the water pipe is provided with a first ventilation opening, and the second electromagnetic valve is used for independently controlling whether the first ventilation opening is closed or not;
the first thermostatic valve is arranged at the first air vent and used for independently controlling whether the first air vent is closed or not and jointly controlling whether the first air vent is opened or not with the second electromagnetic valve, and the first thermostatic valve is provided with a first thermostatic valve core capable of expanding with heat and contracting with cold;
the water outlet part of the water pipe is provided with a second ventilation port, and the third electromagnetic valve is used for independently controlling whether the second ventilation port is closed or not;
the second thermostatic valve is arranged at the second air vent and used for independently controlling whether the second air vent is closed or not and jointly controlling whether the second air vent is opened or not with a third electromagnetic valve, and the second thermostatic valve is provided with a second thermostatic valve core capable of expanding with heat and contracting with cold;
the siphon is of an inverted U-shaped structure, a water permeable port positioned on the upstream of the second air permeable port is formed in the downstream part of the water pipe, the first end of the siphon is connected with the water permeable port, the top of the siphon is higher than the upper end of the water pipe and is provided with a water outlet;
the fourth electromagnetic valve is arranged at the water permeable opening and is used for controlling the opening and closing of the water permeable opening;
the third thermostatic valve is arranged in the middle of the siphon pipe and used for controlling whether liquid in the siphon pipe flows or not, and the third thermostatic valve is provided with a third thermostatic valve core capable of expanding with heat and contracting with cold; and
and a fourth thermostatic valve provided downstream of the siphon tube and capable of automatically opening in an open state of the third thermostatic valve.
In the above scheme, the siphon tube has an enlarged inner diameter near the water outlet to form a water storage cavity, and the fourth thermostatic valve is arranged in the water storage cavity and opens or closes the water outlet of the water storage cavity. The structure is provided to form a negative pressure to drain the accumulated water.
Preferably, the fourth thermostatic valve includes a floating ball, a connecting rod, a connecting arm, a first sealing cover and a fourth thermostatic valve core capable of expanding with heat and contracting with cold, the connecting arm is arranged on the inner wall of the water storage cavity in a manner of moving up and down, the fourth thermostatic valve core is arranged on the connecting arm, the first sealing cover is arranged at the lower end of the fourth thermostatic valve core and can open or close the water outlet of the water storage cavity, the upper end of the fourth thermostatic valve core is connected with the connecting rod, and the floating ball is arranged on the connecting rod. A part of accumulated water exists in the water storage cavity, when the temperature is higher than 5 ℃, the fourth thermostatic valve core expands to drive the first sealing cover to seal the water outlet of the water storage cavity, and the siphon pipe cannot be started; when the temperature is less than 5 ℃, the shrink of fourth thermostatic cartridge drives first closing cap and opens the delivery port in water storage chamber, thereby partial rivers discharge in the water storage chamber produces the negative pressure, thereby further discharge the ponding in the water pipe, and at the drainage in-process, along with the liquid level in the water storage chamber risees, the floater drives fourth thermostatic cartridge, first closing cap rises, it is faster to make rivers discharge, after the ponding discharge in the water pipe finishes, the floater descends, seal the delivery port in water storage chamber once more until first closing cap.
Preferably, the siphon tube has a transition section in the middle thereof, in which the inner diameter gradually increases in the direction of water flow, and the third thermostatic valve is provided in the transition section. By adopting the structure, on one hand, the third thermostatic valve core is convenient to be matched with the inner wall of the siphon pipe, and whether water flow in the siphon pipe flows or not is better controlled; on the other hand, under the state that the siphon is started, the water flow is discharged quickly.
In order to facilitate connection and assembly, a second sealing cover capable of opening or closing the first ventilation opening is arranged on the first ventilation opening, and the valve core and the first thermostatic valve core of the second electromagnetic valve are connected with the second sealing cover. And a third sealing cover capable of opening or closing the second ventilation port is arranged on the second ventilation port, and a valve core of the third electromagnetic valve and the second thermostatic valve core are connected with the third sealing cover.
In order to facilitate the control of the water quantity, a sensor capable of detecting the water flow is arranged on the water inlet part of the water pipe.
An anti-freezing method of a water heater device with an anti-freezing function is characterized in that:
(1) when the water heater device is powered on and the room temperature is higher than 5 ℃, the first electromagnetic valve works to enable the water pipe to be in a water inlet state; the second solenoid valve and the first thermostatic valve simultaneously close the first ventilation port, and the third solenoid valve and the second thermostatic valve simultaneously close the second ventilation port, so that water leakage in the use process of the water pipe is avoided; the fourth electromagnetic valve works to close the water permeable port; the siphon is not started; the water heater device is normally used;
(2) when the water heater is powered off and the room temperature is higher than 5 ℃, the first electromagnetic valve does not work to enable the water pipe to be in a water-inlet-incapable state; the second solenoid valve does not work, the first thermostatic valve independently closes the first ventilation port, the third solenoid valve does not work, and the second thermostatic valve independently closes the second ventilation port, so that water flow in the water pipe is prevented from overflowing; when the fourth electromagnetic valve does not work, the water permeable port is opened, part of water in the water pipe enters the siphon pipe, and the siphon pipe is blocked by the third thermostatic valve, so that the water is prevented from further flowing in the siphon pipe; the water heater device stops using, and accumulated water in the water pipe is not condensed due to the fact that the room temperature is higher than 5 ℃;
(3) when the water heater device is powered on and the room temperature is lower than 5 ℃, and the water heater device needs to be used, the first electromagnetic valve works to enable the water pipe to be in a water inlet state, the second electromagnetic valve independently closes the first ventilation port, the third electromagnetic valve independently closes the second ventilation port, water leakage in the using process of the water pipe is avoided, the fourth electromagnetic valve works to close the ventilation port, and the siphon is not started; when the siphon water inlet device is not used, the first electromagnetic valve works to enable the water pipe to be in a non-water-inlet state, the second electromagnetic valve and the first thermostatic valve simultaneously open the first ventilation port, the third electromagnetic valve and the second thermostatic valve simultaneously open the second ventilation port, the fourth electromagnetic valve works to open the water-permeable port, the third thermostatic valve enables liquid in the siphon pipe to flow, the fourth thermostatic valve is opened, and accumulated water in the water pipe is discharged through the siphon pipe;
(4) when the water heater device is powered off and the room temperature is lower than 5 ℃, the first electromagnetic valve does not work, so that the water pipe is in a water-inlet-incapable state; the second solenoid valve does not work, the first thermostatic valve independently opens the first ventilation port, the third solenoid valve does not work, and the second thermostatic valve independently opens the second ventilation port; the fourth solenoid valve is out of work and opens the mouth of permeating water, and the third thermostatic valve makes the intraductal liquid of siphon circulated, and the fourth thermostatic valve is opened, and ponding in the water pipe passes through the siphon and discharges.
An anti-freezing method of a water heater device with an anti-freezing function is characterized in that:
(1) when the water heater device is powered on and the room temperature is higher than 5 ℃, the first electromagnetic valve works to enable the water pipe to be in a water inlet state; the second solenoid valve and the first thermostatic valve simultaneously close the first ventilation port, and the third solenoid valve and the second thermostatic valve simultaneously close the second ventilation port, so that water leakage in the use process of the water pipe is avoided; the fourth electromagnetic valve works to close the water permeable port; the siphon is not started; the water heater device is normally used;
(2) when the water heater is powered off and the room temperature is higher than 5 ℃, the first electromagnetic valve does not work to enable the water pipe to be in a water-inlet-incapable state; the second solenoid valve does not work, the first thermostatic valve independently closes the first ventilation port, the third solenoid valve does not work, and the second thermostatic valve independently closes the second ventilation port, so that water flow in the water pipe is prevented from overflowing; when the fourth electromagnetic valve does not work, the water permeable port is opened, part of water in the water pipe enters the siphon pipe, and the siphon pipe is blocked by the third thermostatic valve, so that the water is prevented from further flowing in the siphon pipe; the water heater device stops using, and accumulated water in the water pipe is not condensed due to the fact that the room temperature is higher than 5 ℃;
(3) when the water heater device is powered on and the room temperature is lower than 5 ℃, and the water heater device needs to be used, the first electromagnetic valve works to enable the water pipe to be in a water inlet state, the second electromagnetic valve independently closes the first ventilation port, the third electromagnetic valve independently closes the second ventilation port, water leakage in the using process of the water pipe is avoided, the fourth electromagnetic valve works to close the ventilation port, and the siphon is not started; when the siphon water heater is not used, the first electromagnetic valve works to enable the water pipe to be in a non-water-inflow state, the second electromagnetic valve and the first thermostatic valve simultaneously open the first ventilation port, the third electromagnetic valve and the second thermostatic valve simultaneously open the second ventilation port, the fourth electromagnetic valve works to open the water-permeable port, the third thermostatic valve enables liquid in the siphon pipe to be circulated, the fourth thermostatic valve core is cooled and shrunk to drive the first sealing cover to open the water outlet of the water storage cavity, water flow in the water storage cavity is discharged to form negative pressure, accumulated water in the water pipe is discharged through the siphon pipe, after accumulated water is discharged, the water level in the water storage cavity is lowered, and the floating ball drives the fourth thermostatic valve core to descend to enable the first sealing cover to close the water outlet of the water storage cavity;
(4) when the water heater device is powered off and the room temperature is lower than 5 ℃, the first electromagnetic valve does not work, so that the water pipe is in a water-inlet-incapable state; the second solenoid valve does not work, the first thermostatic valve independently opens the first ventilation port, the third solenoid valve does not work, and the second thermostatic valve independently opens the second ventilation port; the out-of-work mouth of permeating water of fourth solenoid valve is opened, and the third thermostatic valve makes the intraductal liquid of siphon circulate, and the fourth thermostatic cartridge receives cold and contracts to drive first closing cap and opens the delivery port in water storage chamber, thereby the rivers discharge in the water storage chamber forms the negative pressure, and then passes through the siphon with the ponding in the water pipe and discharge, and the back is accomplished in ponding getting rid of, and the intracavity water level of water storage descends, and the floater drives the decline of fourth thermostatic cartridge and then makes the delivery port of first closing cap with the water storage chamber close.
Compared with the prior art, the invention has the advantages that: the water outlet part of the water pipe is connected with the inverted U-shaped siphon, the water pipe is provided with a first ventilation port and a second ventilation port, and the water pipe is also provided with an electromagnetic valve and a thermostatic valve which can be respectively matched with each other in a non-use mode to control whether the siphon is started or not in a state that the temperature is higher than or lower than the first temperature and the water heater is powered on or powered off, so that the water heater device can automatically abandon the siphon when the room temperature is higher than a certain temperature, and automatically start the siphon to drain accumulated water in the water pipe when the room temperature is lower than the certain temperature, thereby avoiding the problem that the water pipe is cold-cracked due to the large amount of accumulated water in the water pipe.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1 (an open state);
FIG. 3 is an enlarged schematic view of portion A of FIG. 1 (closed state);
FIG. 4 is an enlarged schematic view of portion B of FIG. 1 (closed state);
fig. 5 is an enlarged schematic view of a portion B in fig. 1 (an open state);
fig. 6 is an enlarged schematic view of portion E of fig. 1 (closed state);
fig. 7 is an enlarged schematic view of portion F of fig. 1 (closed state);
fig. 8 is an enlarged schematic view of portion C of fig. 1 (closed state);
fig. 9 is an enlarged schematic view of a portion C in fig. 1 (an open state);
fig. 10 is an enlarged schematic view of portion D of fig. 1 (closed state);
fig. 11 is an enlarged schematic view of a portion D in fig. 1 (an open state).
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 11, the water heater apparatus with an anti-freezing function in this embodiment includes a water pipe 1, a heat exchanger 2 and an anti-freezing structure, the middle portion of the water pipe 1 is connected to the heat exchanger 2, according to the water flow direction, the water pipe 1 has a water inlet portion 11 located at the upstream of the heat exchanger 2 and a water outlet portion 12 located at the downstream of the heat exchanger 2, and the water inlet portion 11 is provided with a first electromagnetic valve 10.
The anti-freeze structure of the present embodiment includes a second solenoid valve 20, a first thermostat valve 100, a third solenoid valve 30, a second thermostat valve 200, a siphon tube 3, a fourth solenoid valve 40, a third thermostat valve 300, and a fourth thermostat valve 400. First ventilative mouthful 111 has been seted up on the part 11 of intaking of water pipe 1, whether second solenoid valve 20 can this first ventilative mouthful 111 of independent control close, first thermostatic valve 100 is located first ventilative mouthful 111 department, first thermostatic valve 100 has the first thermostatic valve core 101 that can expend with heat and contract with cold, first thermostatic valve 100 can the independent control first ventilative mouthful 111 close whether, with the opening of second solenoid valve 20 first ventilative mouthful 111 of common control, second solenoid valve 20 promptly, can close first ventilative mouthful 111 when arbitrary one in first thermostatic valve 100 closes, but only can make first ventilative mouthful 111 open when the two opens simultaneously. The water outlet part 12 of the water pipe 1 is provided with a second ventilation port 121, the third electromagnetic valve 30 is used for independently controlling whether the second ventilation port 121 is closed or not, the second thermostatic valve 200 is arranged at the second ventilation port 121, the second thermostatic valve 200 is provided with a second thermostatic valve core 201 capable of expanding with heat and contracting with cold, the second thermostatic valve 200 is used for independently controlling whether the second ventilation port 121 is closed or not and jointly controlling whether the second ventilation port 121 is opened or not with the third electromagnetic valve 30, namely, when any one of the third electromagnetic valve 30 and the second thermostatic valve 200 is closed, the second ventilation port 121 can be closed, but only when the two are opened simultaneously, the second ventilation port 121 can be opened. The siphon 3 is formed into an inverted U-shaped structure, the downstream part 12 of the water pipe 1 is provided with a water permeable port 123 positioned at the upstream of the second air permeable port 121, the first end of the siphon 3 is connected with the water permeable port 123, the top of the siphon 3 is higher than the upper end of the water pipe 1 and is arranged, and the second end of the siphon 3 is provided with a water outlet 31. The fourth electromagnetic valve 40 is disposed at the water permeable port 123 and is used for controlling the opening and closing of the water permeable port 123. The third thermostatic valve 300 is arranged in the middle of the siphon tube 3 and used for controlling whether the liquid in the siphon tube 3 flows or not, and the third thermostatic valve 300 is provided with a third thermostatic valve core 301 which can expand with heat and contract with cold. The fourth thermostatic valve 400 is provided downstream of the siphon tube 3 and can be automatically opened in the open state of the third thermostatic valve 300.
Specifically, the siphon tube 3 is formed with a water storage chamber 33 having an enlarged inner diameter near the water discharge port 31, and the fourth thermostatic valve 400 is provided in the water storage chamber 33 and opens or closes the water outlet 32 of the water storage chamber 33 to form a negative pressure to discharge the accumulated water.
The fourth thermostatic valve 400 of this embodiment includes a floating ball 401, a connecting rod 402, a connecting arm 403, a first cover 404, and a fourth thermostatic valve core 405 that can expand with heat and contract with cold, the connecting arm 403 can be disposed on the inner wall of the water storage cavity 33 in a vertically movable manner, the fourth thermostatic valve core 405 is disposed on the connecting arm 403, the first cover 404 is disposed at the lower end of the fourth thermostatic valve core 405 and can open or close the water outlet 32 of the water storage cavity 33, the upper end of the fourth thermostatic valve core 405 is connected to the connecting rod 402, and the floating ball 401 is disposed on the connecting rod 402 and transversely floats on the liquid level of the water storage cavity 33 together with the connecting rod 402. A part of accumulated water exists in the water storage cavity 33, when the temperature is higher than 5 ℃, the fourth thermostatic valve core 405 expands to drive the first sealing cover 404 to seal the water outlet 32 of the water storage cavity 33, and the siphon tube 3 cannot be started; when the temperature is lower than 5 ℃, the fourth thermostatic valve core 405 contracts to drive the first sealing cover 404 to open the water outlet 32 of the water storage cavity 33, partial water flow in the water storage cavity 33 is discharged to generate negative pressure, accumulated water in the water pipe 1 is further discharged, in the water discharging process, along with the rise of the liquid level in the water storage cavity 33, the floating ball 401 drives the fourth thermostatic valve core 405 and the first sealing cover 404 to rise, the water flow is discharged more quickly, after the accumulated water in the water pipe 1 is discharged, the floating ball 401 descends until the first sealing cover 404 seals the water outlet 32 of the water storage cavity 33 again.
In the present embodiment, the siphon tube 3 has a transition section 34 in the middle portion thereof, which gradually increases in inner diameter in the direction of water flow, and the third thermostatic valve 300 is provided in the transition section 34. On one hand, the structure is convenient for the third thermostatic valve core 301 to be matched with the inner wall of the siphon pipe 3, and better controls whether the water flow in the siphon pipe 3 flows or not; on the other hand, in the activated state of the siphon 3, it is advantageous to discharge the water flow quickly. In order to facilitate connection and assembly, the first ventilation opening 111 is provided with a second sealing cover 112 capable of opening or closing the first ventilation opening 111, and both the valve core of the second electromagnetic valve 20 and the first thermostatic valve core 101 are connected with the second sealing cover 112 to drive the second sealing cover 112 to close or open the first ventilation opening 111. The second ventilation port 121 is provided with a third sealing cover 122 capable of opening or closing the second ventilation port 121, and both the valve core of the third electromagnetic valve 30 and the second thermostatic valve core 202 are connected with the third sealing cover 122 so as to drive the third sealing cover 122 to open or close the second ventilation port 121. To facilitate the control of the water amount, the water inlet portion 11 of the water pipe 1 is provided with a sensor 113 capable of detecting the water flow amount.
The anti-freezing method of the water heater device in the embodiment comprises the following steps:
(1) when the water heater device is powered on and the room temperature is higher than 5 ℃, the first electromagnetic valve 10 works to enable the water pipe 1 to be in a water inlet state; the second solenoid valve 20 and the first thermostatic valve 100 simultaneously close the first ventilation port 111, and the third solenoid valve 30 and the second thermostatic valve 200 simultaneously close the second ventilation port 121, so that water leakage in the use process of the water pipe 1 is avoided; the fourth electromagnetic valve 40 works to close the water permeable port 123; the siphon 3 is not activated; the water heater device is normally used;
(2) when the water heater is powered off and the room temperature is higher than 5 ℃, the first electromagnetic valve 10 does not work to enable the water pipe 1 to be in a state that water cannot enter; the second solenoid valve 20 does not work, the first thermostatic valve 100 independently closes the first ventilation port, the third solenoid valve 30 does not work, and the second thermostatic valve 200 independently closes the second ventilation port 121, so that water flow in the water pipe 1 is prevented from overflowing; the fourth electromagnetic valve 40 does not work to open the water permeable port 123, part of the water in the water pipe 1 enters the siphon pipe 3, and the third thermostatic valve 300 blocks the siphon pipe 3 to prevent the water from flowing further in the siphon pipe 3; the water heater device stops using, and accumulated water in the water pipe 1 is not condensed due to the fact that the room temperature is higher than 5 ℃;
(3) when the water heater device is powered on and the room temperature is lower than 5 ℃, and when the water heater device needs to be used, the first electromagnetic valve 10 works to enable the water pipe 1 to be in a water inlet state, the second electromagnetic valve 20 independently closes the first air vent 111, the third electromagnetic valve 30 independently closes the second air vent 121, water leakage in the use process of the water pipe 1 is avoided, the fourth electromagnetic valve 40 works to close the water vent 123, and the siphon 3 is not started; when the water storage device is not used, the first electromagnetic valve 10 works to enable the water pipe 1 to be in a non-water-inlet state, the second electromagnetic valve 20 and the first thermostatic valve 100 simultaneously open the first ventilation port 111, the third electromagnetic valve 30 and the second thermostatic valve 200 simultaneously open the second ventilation port 121, the fourth electromagnetic valve 40 works to open the ventilation port 123, the third thermostatic valve 300 enables liquid in the siphon pipe 3 to be circulated, the fourth thermostatic valve core 405 is cooled and shrunk to drive the first sealing cover 404 to open the water outlet 32 of the water storage cavity 33, water in the water storage cavity 22 is discharged to form negative pressure, accumulated water in the water pipe 1 is discharged through the siphon pipe 3, after the accumulated water is discharged, the water level in the water storage cavity 33 descends, and the floating ball 401 drives the fourth thermostatic valve core 405 to descend to enable the first sealing cover 404 to close the water outlet 32 of the water storage cavity 33;
(4) when the water heater device is powered off and the room temperature is lower than 5 ℃, the first electromagnetic valve 10 does not work, so that the water pipe 1 is in a state of water inlet incapability; the second solenoid valve 20 does not work, the first thermostatic valve 100 independently opens the first ventilation port 111, the third solenoid valve 30 does not work, and the second thermostatic valve 200 independently opens the second ventilation port 121; the mouth 123 of will permeating water of the inoperative of fourth solenoid valve 40 is opened, third thermostatic valve 300 makes the interior liquid of siphon 3 circulate, fourth thermostatic cartridge 405 receives cold and contracts with cold and drives first closing cap 404 and open the delivery port 32 of water storage chamber 33, thereby rivers discharge in the water storage chamber 22 forms the negative pressure, and then pass through siphon 3 with the ponding in the water pipe 1 and discharge, the back is got rid of to the ponding and is accomplished, the decline of water level in the water storage chamber 33, floater 401 drives fourth thermostatic cartridge 405 decline and then makes first closing cap 404 close the delivery port 32 of water storage chamber 33.
Claims (8)
1. The utility model provides a water heater device with function of preventing frostbite, includes water pipe (1) and heat exchanger (2), the middle part of water pipe (1) is connected with heat exchanger (2), according to the rivers direction, water pipe (1) have the part of intaking (11) that is located heat exchanger (2) upper reaches and lie in the play water part (12) of heat exchanger (2) low reaches, be provided with first solenoid valve (10) on the part of intaking (11), its characterized in that: also comprises
The water inlet part (11) of the water pipe (1) is provided with a first ventilation opening (111), and the second electromagnetic valve (20) is used for independently controlling whether the first ventilation opening (111) is closed or not;
the first thermostatic valve (100) is arranged at the first ventilation port (111) and used for independently controlling whether the first ventilation port (111) is closed or not and controlling whether the first ventilation port (111) is opened or not together with the second electromagnetic valve (20), and the first thermostatic valve (100) is provided with a first thermostatic valve core (101) capable of expanding with heat and contracting with cold;
a second ventilation port (121) is formed in the water outlet part (12) of the water pipe (1), and the third electromagnetic valve (30) is used for independently controlling whether the second ventilation port (121) is closed or not;
the second thermostatic valve (200) is arranged at the second ventilation port (121) and is used for independently controlling whether the second ventilation port (121) is closed or not and controlling whether the second ventilation port (121) is opened or not together with the third electromagnetic valve (30), and the second thermostatic valve (200) is provided with a second thermostatic valve core (201) capable of expanding with heat and contracting with cold;
the siphon (3) is of an inverted U-shaped structure, a water permeable opening (123) located at the upstream of the second air permeable opening (121) is formed in the downstream part (12) of the water pipe (1), the first end of the siphon (3) is connected with the water permeable opening (123), the top of the siphon (3) is higher than the upper end of the water pipe (1) and is arranged, and a water outlet (31) is formed in the second end of the siphon (3);
the fourth electromagnetic valve (40) is arranged at the water permeable port (123) and is used for controlling the on-off of the water permeable port (123);
the third thermostatic valve (300) is arranged in the middle of the siphon pipe (3) and used for controlling whether liquid in the siphon pipe (3) flows or not, and the third thermostatic valve (300) is provided with a third thermostatic valve core (301) which can expand with heat and contract with cold; and
a fourth thermostatic valve (400) which is provided downstream of the siphon (3) and which can be automatically opened in the open state of the third thermostatic valve (300);
the inner diameter of the siphon (3) is enlarged near the water outlet (31) to form a water storage cavity (33), and the fourth thermostatic valve (400) is arranged in the water storage cavity (33) and opens or closes a water outlet (32) of the water storage cavity (33).
2. The water heater apparatus with antifreeze function of claim 1, wherein: fourth thermostatic valve (400) include floater (401), connecting rod (402), linking arm (403), first closing cap (404) and can expend with heat and contract with cold fourth thermostatic valve core (405), linking arm (403) can be located on the inner wall in water storage chamber (33) with reciprocating, fourth thermostatic valve core (405) are located on linking arm (403), the lower extreme of fourth thermostatic valve core (405) and can be opened or close delivery port (32) in water storage chamber (33) are located in first closing cap (404), the upper end of fourth thermostatic valve core (405) is connected with connecting rod (402), floater (401) are located on connecting rod (402).
3. The water heater apparatus with an anti-freezing function according to claim 1 or 2, wherein: the middle part of the siphon (3) is provided with a gradual change section (34) with the inner diameter gradually enlarged along the water flow direction, and the third thermostatic valve (300) is arranged in the gradual change section (34).
4. The water heater apparatus with an anti-freezing function according to claim 1 or 2, wherein: and a second sealing cover (112) capable of opening or closing the first ventilation port (111) is arranged on the first ventilation port (111), and the valve core of the second electromagnetic valve (20) and the first thermostatic valve core (101) are connected with the second sealing cover (112).
5. The water heater apparatus with an anti-freezing function according to claim 1 or 2, wherein: and a third sealing cover (122) capable of opening or closing the second ventilation port (121) is arranged on the second ventilation port (121), and a valve core of the third electromagnetic valve (30) and the second thermostatic valve core (201) are connected with the third sealing cover (122).
6. The water heater apparatus with an anti-freezing function according to claim 1 or 2, wherein: a sensor (113) capable of detecting water flow is arranged on the water inlet part (11) of the water pipe (1).
7. An anti-freezing method for a water heater apparatus with an anti-freezing function as claimed in any one of claims 1 to 6, wherein:
(1) when the water heater device is electrified and the room temperature is higher than 5 ℃, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a water inlet state; the second solenoid valve (20) and the first thermostatic valve (100) simultaneously close the first ventilation port (111), and the third solenoid valve (30) and the second thermostatic valve (200) simultaneously close the second ventilation port (121), so that water leakage in the use process of the water pipe (1) is avoided; the fourth electromagnetic valve (40) works to close the water permeable port (123); the siphon (3) is not started; the water heater device is normally used;
(2) when the water heater is powered off and the room temperature is higher than 5 ℃, the first electromagnetic valve (10) does not work, so that the water pipe (1) is in a state that water cannot enter; the second electromagnetic valve (20) does not work, the first constant temperature valve (100) independently closes the first ventilation port (111), the third electromagnetic valve (30) does not work, and the second constant temperature valve (200) independently closes the second ventilation port (121), so that water flow in the water pipe (1) is prevented from overflowing; the fourth electromagnetic valve (40) does not work to open the water permeable port (123), part of water flow in the water pipe (1) enters the siphon pipe (3), and the third thermostatic valve (300) blocks the siphon pipe (3) to prevent the water flow from further flowing in the siphon pipe (3); the water heater device stops using, and accumulated water in the water pipe (1) is not condensed due to the fact that the room temperature is higher than 5 ℃;
(3) when the water heater device is powered on and the room temperature is lower than 5 ℃, and the water heater device needs to be used, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a water inlet state, the second electromagnetic valve (20) independently closes the first air-permeable port (111), the third electromagnetic valve (30) independently closes the second air-permeable port (121), water leakage in the using process of the water pipe (1) is avoided, the fourth electromagnetic valve (40) works to close the water-permeable port (123), and the siphon (3) is not started; when the water pipe is not used, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a non-water-inlet state, the second electromagnetic valve (20) and the first thermostatic valve (100) simultaneously open the first ventilation port (111), the third electromagnetic valve (30) and the second thermostatic valve (200) simultaneously open the second ventilation port (121), the fourth electromagnetic valve (40) works to open the water-permeable port (123), the third thermostatic valve (30) enables liquid in the siphon pipe (3) to flow, the fourth thermostatic valve (400) is opened, and accumulated water in the water pipe (1) is discharged through the siphon pipe (3);
(4) when the water heater device is powered off and the room temperature is lower than 5 ℃, the first electromagnetic valve (10) does not work, so that the water pipe (1) is in a state that water cannot enter; the second solenoid valve (20) does not work, the first constant temperature valve (100) independently opens the first ventilation port (111), the third solenoid valve (30) does not work, and the second constant temperature valve (200) independently opens the second ventilation port (121); when the fourth electromagnetic valve (40) does not work, the water permeable port (123) is opened, the third thermostatic valve (300) enables liquid in the siphon pipe (3) to flow, the fourth thermostatic valve (400) is opened, and accumulated water in the water pipe (1) is discharged through the siphon pipe (3).
8. An anti-freezing method of a water heater apparatus with an anti-freezing function as claimed in claim 2, wherein:
(1) when the water heater device is electrified and the room temperature is higher than 5 ℃, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a water inlet state; the second solenoid valve (20) and the first thermostatic valve (100) simultaneously close the first ventilation port (111), and the third solenoid valve (30) and the second thermostatic valve (200) simultaneously close the second ventilation port (121), so that water leakage in the use process of the water pipe (1) is avoided; the fourth electromagnetic valve (40) works to close the water permeable port (123); the siphon (3) is not started; the water heater device is normally used;
(2) when the water heater is powered off and the room temperature is higher than 5 ℃, the first electromagnetic valve (10) does not work, so that the water pipe (1) is in a state that water cannot enter; the second electromagnetic valve (20) does not work, the first constant temperature valve (100) independently closes the first ventilation port (111), the third electromagnetic valve (30) does not work, and the second constant temperature valve (200) independently closes the second ventilation port (121), so that water flow in the water pipe (1) is prevented from overflowing; the fourth electromagnetic valve (40) does not work to open the water permeable port (123), part of water flow in the water pipe (1) enters the siphon pipe (3), and the third thermostatic valve (300) blocks the siphon pipe (3) to prevent the water flow from further flowing in the siphon pipe (3); the water heater device stops using, and accumulated water in the water pipe (1) is not condensed due to the fact that the room temperature is higher than 5 ℃;
(3) when the water heater device is powered on and the room temperature is lower than 5 ℃, and the water heater device needs to be used, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a water inlet state, the second electromagnetic valve (20) independently closes the first air-permeable port (111), the third electromagnetic valve (30) independently closes the second air-permeable port (121), water leakage in the using process of the water pipe (1) is avoided, the fourth electromagnetic valve (40) works to close the water-permeable port (123), and the siphon (3) is not started; when the water storage device is not used, the first electromagnetic valve (10) works to enable the water pipe (1) to be in a non-water-inlet state, the second electromagnetic valve (20) and the first thermostatic valve (100) simultaneously open the first ventilation port (111), the third electromagnetic valve (30) and the second thermostatic valve (200) simultaneously open the second ventilation port (121), the fourth electromagnetic valve (40) works to open the water-permeable port (123), the third thermostatic valve (300) enables liquid in the siphon pipe (3) to flow, the fourth thermostatic valve core (405) drives the first sealing cover (404) to open the water outlet (32) of the water storage cavity (33) under the cold and cold shrinkage, and water in the water storage cavity (33) is discharged to form negative pressure, then the accumulated water in the water pipe (1) is discharged through the siphon (3), after the accumulated water is discharged, the water level in the water storage cavity (33) descends, and the floating ball (401) drives the fourth thermostatic valve core (405) to descend so that the first sealing cover (404) closes the water outlet (32) of the water storage cavity (33);
(4) when the water heater device is powered off and the room temperature is lower than 5 ℃, the first electromagnetic valve (10) does not work, so that the water pipe (1) is in a state that water cannot enter; the second solenoid valve (20) does not work, the first constant temperature valve (100) independently opens the first ventilation port (111), the third solenoid valve (30) does not work, and the second constant temperature valve (200) independently opens the second ventilation port (121); the water permeable port (123) is opened when the fourth electromagnetic valve (40) works, liquid in the siphon (3) can flow through the third thermostatic valve (300), the fourth thermostatic valve core (405) is cooled and shrunk to drive the first sealing cover (404) to open the water outlet (32) of the water storage cavity (33), water in the water storage cavity (33) is discharged to form negative pressure, accumulated water in the water pipe (1) is discharged through the siphon (3), after the accumulated water is discharged, the water level in the water storage cavity (33) descends, the floating ball (401) drives the fourth thermostatic valve core (405) to descend, and then the first sealing cover (404) is closed to the water outlet (32) of the water storage cavity (33).
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| CN201910030213.1A CN111435038B (en) | 2019-01-14 | 2019-01-14 | Water heater device with anti-freezing function and anti-freezing method thereof |
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| CN201910030213.1A CN111435038B (en) | 2019-01-14 | 2019-01-14 | Water heater device with anti-freezing function and anti-freezing method thereof |
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| CN111435038B true CN111435038B (en) | 2021-11-26 |
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