CN210688702U - Zero-cold-water gas water heater - Google Patents
Zero-cold-water gas water heater Download PDFInfo
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- CN210688702U CN210688702U CN201920879767.4U CN201920879767U CN210688702U CN 210688702 U CN210688702 U CN 210688702U CN 201920879767 U CN201920879767 U CN 201920879767U CN 210688702 U CN210688702 U CN 210688702U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 307
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000002265 prevention Effects 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 17
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a zero-cold water gas water heater, which comprises a water heater body, a hot water pipeline, a cold water pipeline and a return water branch, wherein both ends of the return water branch are respectively communicated with the hot water pipeline and the cold water pipeline; the anti-water-mixing device can be automatically disconnected or communicated with the water return branch when the water pressure of cold water in the anti-water-mixing device is reduced or increased. The utility model discloses a setting can be according to the automatic water admixing device that prevents of automatic intercommunication or automatic disconnection return water branch road of the water pressure change of cold water, and no power loss has effectively solved when the user uses cold water hot water entering cold water pipeline and takes place "muddy water" pain point to it is extravagant to have avoided gas heater to open because of "muddy water" mistake and causes the gas.
Description
Technical Field
The utility model relates to a water heater technical field especially relates to a zero cold water gas heater that can solve muddy water problem.
Background
With the increasing demands of consumers on the quality of life, "zero cold water" gas water heaters are becoming more and more common. When the 'zero cold water' gas water heater is installed, two practical situations are faced: with and without a return pipe.
In the case of no return pipe, a check valve is installed between the hot water pipe and the cold water pipe at the farthest water consumption point to press the cold water in the hot water pipe to the cold water pipe. When the remote water consumption point separately opens the cold water, the one-way valve may be opened by mistake due to the large pressure difference, and the water in the hot water pipe flows into the cold water pipe to be mixed.
Disclosure of Invention
The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model provides a zero cold water gas heater, its simple structure, no power loss has solved the user and has taken place the pain point of "mixing water" when using cold water at the most remote water end, has avoided zero cold water gas heater to open because of "mixing water" mistake and has caused the extravagant phenomenon of gas to take place.
The above purpose is realized by the following technical scheme:
a zero-cold-water gas water heater comprises a water heater body, a hot water pipeline, a cold water pipeline and a water return branch, wherein two ends of the water return branch are respectively communicated with the hot water pipeline and the cold water pipeline; the water mixing prevention device can automatically disconnect the return water branch when the water pressure of cold water in the water mixing prevention device is reduced, or automatically connect the return water branch when the water pressure of cold water in the water mixing prevention device is increased.
In some embodiments, the water mixing prevention device comprises a valve body with a cavity and a valve core movably arranged in the valve body and dividing the cavity into a first cavity and a second cavity, the upper end of the valve body is provided with a first water inlet communicated with the water inlet end of the water return branch, the lower end of the valve body is provided with a first water outlet communicated with the water outlet end of the water return branch, and the position of the first water outlet is opposite to that of the first water inlet; the valve core is provided with a through hole for water flow to pass through, the first cavity is communicated with the cold water pipeline, and the valve core can horizontally move along with the change of the cold water pressure of the first cavity, so that the through hole is communicated or disconnected with the first water inlet and the first water outlet.
In some embodiments, the valve core is of a cylindrical structure.
In some embodiments, the anti-mixing device further includes an elastic member disposed in the second cavity, and two ends of the elastic member are respectively connected to the valve core and an inner side wall of the second cavity.
In some embodiments, one end of the elastic member is connected to the middle of the valve core, and the other end of the elastic member is connected to the middle of the inner side wall of the second cavity facing the valve core.
In some embodiments, the anti-mixing device further comprises at least one limiting portion disposed in the second cavity for limiting the displacement of the valve core towards the horizontal movement of the elastic member.
In some embodiments, when the valve core abuts against the limiting part, the matching communication area between the through hole and the first water inlet and the first water outlet is the largest.
In some embodiments, the number of the limiting parts is two, and the two limiting parts are respectively and correspondingly arranged on the inner side of the top and the inner side of the bottom of the second cavity.
In some embodiments, the valve body is provided with a second water inlet and a second water outlet, the second water inlet is respectively communicated with the water inlet section of the cold water pipeline and the first cavity, and the second water outlet is respectively communicated with the water outlet section of the cold water pipeline and the first cavity.
In some embodiments, the second water inlet and the second water outlet are respectively disposed at upper and lower ends of the valve body.
Compared with the prior art, the utility model discloses an at least including following beneficial effect: the utility model discloses a setting can be according to the automatic water admixing device that prevents of automatic intercommunication or automatic disconnection return water branch road of the water pressure change of cold water, and no power loss has effectively solved when the user uses cold water hot water entering cold water pipeline and takes place "muddy water" pain point to avoided gas heater to open because of "muddy water" mistake and caused the extravagant phenomenon of gas to take place.
Drawings
FIG. 1 is a schematic structural diagram of a zero-cold-water gas water heater according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a zero-cooling water gas water heater according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the anti-mixing device in the embodiment of the present invention, in which the through hole 21 is in a matching communication state with the first water inlet 511 and the first water outlet 512 when the user does not use cold water;
fig. 4 is a schematic structural diagram of the anti-mixing device in the embodiment of the present invention, in which the through hole 21 is disconnected from the first water inlet 511 and the first water outlet 512 when the user is using cold water.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.
As shown in fig. 1-3, the zero-cold-water gas water heater of the embodiment includes a water heater body 1, a hot water pipeline 2, a cold water pipeline 3, and a water return branch 4, wherein the hot water pipeline 2 and the cold water pipeline 3 are respectively communicated with the water heater body 1, the water return branch 4 is respectively communicated with the hot water pipeline 2 and the cold water pipeline 3, and the zero-cold-water gas water heater further includes a water mixing prevention device 5, and the water mixing prevention device 5 is respectively connected with the cold water pipeline 3 and the water return branch 4; the water mixing prevention device 5 can automatically disconnect the water return branch 4 when the water pressure of cold water in the water mixing prevention device 5 is reduced, or automatically connect the water return branch 4 when the water pressure of cold water in the water mixing prevention device 5 is increased. In the embodiment, the main horizontal toilet is taken as the farthest water consumption point, the return water branch 4 and the water mixing prevention device 5 are close to the farthest water consumption point, when a user uses cold water at the farthest end, the water mixing prevention device 5 releases pressure to reduce the pressure of the cold water in the water mixing prevention device 5, and then the water mixing prevention device 5 can automatically disconnect the return water branch 4; on the contrary, when the farthest end does not use cold water, the water pressure of the cold water in the water mixing prevention device 5 is increased, so that the water mixing prevention device 5 is automatically communicated with the water return branch 4, and the water heater can preheat the circulating water.
The zero cold water gas heater of this embodiment, it prevents that water admixing device 5 can communicate or automatic disconnection return water branch road 4 according to the water pressure change automation of cold water, and no power loss has effectively solved when the user uses cold water hot water entering cold water pipeline 3 and takes place "muddy water" pain point to avoided zero cold water gas heater to open and cause the gas extravagant because of taking place "muddy water" mistake.
As shown in fig. 2-3, further, the water mixing prevention device 5 includes a valve body 51 and a valve core 52 having a cavity, a first water inlet 511 communicated with the water inlet end 41 of the water return branch 4 is disposed at the upper end of the valve body 51, a first water outlet 512 communicated with the water outlet end 42 of the water return branch 4 is disposed at the lower end of the valve body, and the position of the first water outlet 512 is opposite to the position of the first water inlet 511; the valve core 52 is provided with a through hole 521 for water to pass through, the valve core 52 is movably arranged in the valve body 51 and divides the cavity into a first cavity 5101 and a second cavity 5102, wherein the first cavity 5101 is communicated with the cold water pipeline 3. The valve core 52 can move horizontally along with the change of the pressure of the cold water in the first cavity 5101, so that the through hole 521 is in a matched connection or disconnection state with the first water inlet 511 and the first water outlet 512. Therefore, when a user uses cold water at the farthest end, the water pressure of the cold water in the first cavity 5101 is reduced, so that the valve core 52 automatically moves horizontally towards the first cavity 5101 under the action of the pressure difference between the first cavity 5101 and the second cavity 5102, the through hole 521 is disconnected from the first water inlet 511 and the first water outlet 512, the water return branch 4 is cut off, and hot water is prevented from entering the first cavity 5101 through the water inlet end 41 of the water return branch 4 to generate water mixing.
Preferably, the valve core 52 is of a cylindrical structure, and the through hole 521 is disposed in the valve core 52 and penetrates through the bottom and the top of the valve core 52, so that when the valve core 52 moves horizontally toward the first cavity 5101, the top and the bottom of the valve core 52 can correspondingly block the first water inlet 511 and the first water outlet 512, and hot water is prevented from entering the first cavity 5101 through the water inlet end 41 and the first water inlet 511 to generate "water mixing".
Specifically, the upper end and the lower end of the valve body 51 are further provided with a second water inlet 513 and a second water outlet 514, the second water inlet 513 is respectively communicated with the water inlet section 31 of the cold water pipeline 3 and the first cavity 5101, the second water outlet 514 is respectively communicated with the water outlet section 32 of the cold water pipeline 3 and the first cavity 5101, and thus the valve body 51 is connected in series with the cold water pipeline 3 through the second water inlet 513 and the second water outlet 514, so that the pressure in the first cavity 5101 is changed in real time according to the cold water pressure change of the cold water pipeline 3.
Further, the anti-mixing device 5 further includes an elastic member 53 disposed in the second cavity 5102, and two ends of the elastic member 53 are respectively connected to the valve core 52 and the inner side wall of the second cavity 5102. From this, through set up elastic component 53 in second cavity 5102, when making the cold water pressure in first cavity 5101 begin to reduce because of the user uses cold water, case 52 can move towards first cavity 5101 direction fast under the pretightning force effect of elastic component 53, in time cuts off the route between through-hole 521 and first water inlet 511 and the first delivery port 512, is favorable to improving return water branch 4 on-off control's accuracy and reliability, has promoted and has prevented muddy water effect.
Preferably, the elastic member 53 is a spring, one end of the spring is connected to the middle of the valve core 52, and the other end of the spring is connected to the middle of the inner side wall of the second cavity 5102 facing the valve core 52, so as to ensure the stress balance at the two ends of the valve core 52 and prevent the abnormal phenomenon that the valve core 52 tilts during the horizontal movement.
Further, the anti-mixing device 5 further includes at least one limiting portion 54, and the limiting portion 54 is disposed in the second cavity 5102 for limiting the displacement of the valve core 52 towards the horizontal movement of the elastic member 53. When the valve core 52 abuts against the limiting part 54, the matching communication area of the through hole 521 and the first water inlet 511 and the first water outlet 512 is the largest, so that under the action of the limiting part 54, even if the water pressure in the first cavity 5101 increases sharply, the through hole 521 and the first water inlet 511 and the first water outlet 512 are always in the state of the largest matching communication area, and the phenomenon that the water flow of the water return branch 4 is reduced or even disconnected due to the fact that the water pressure in the first cavity 5101 is too large is avoided, and further the preheating effect of the water heater is influenced.
Preferably, the number of the limiting portions 54 is two, and the two limiting portions 54 are respectively and correspondingly disposed on the top inner side and the bottom inner side of the second cavity 5102, so as to ensure that the upper end and the lower end of the valve core 52 are stressed in a balanced manner, and further prevent the valve core 52 from tilting during the movement process.
The working principle of the anti-mixing device 5 of the present embodiment is described below with reference to fig. 3 to 4:
as shown in fig. 3, when no cold water is used at the farthest end or the farthest cold water valve is closed, the water pressure in the first cavity 5101 increases, and when the pressure in the first cavity 5101 is greater than the sum of the pre-tightening force of the elastic member 53 and the pressure in the second cavity 5102, the valve core 52 automatically moves horizontally toward the second cavity 5102. When the valve core 52 moves to the limit part 54 to abut against, the through hole 521 is in a communication state with the first water inlet 511 and the first water outlet 512 in which the matching communication area is the largest, so that the return water branch 4 is communicated, and the water heater is favorable for preheating circulating water.
As shown in fig. 4, when a user uses cold water at the farthest end, the pressure of the first cavity 5101 starts to decrease, and under the combined action of the pressure of the second cavity 5102 and the pre-tightening force of the elastic member 53, the valve core 52 automatically moves horizontally towards the first cavity 5101, i.e., the direction of the elastic member 53, so that the through hole 521 is disconnected from the first water inlet 511 and the first water outlet 512, thereby cutting off the water return branch 4, preventing hot water from entering the first cavity 5101 to generate a "water mixing" phenomenon, preventing the water heater from being opened by mistake due to the "water mixing" phenomenon, and being beneficial to reducing unnecessary consumption of fuel gas.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. A zero-cold-water gas water heater comprises a water heater body (1), a hot water pipeline (2), a cold water pipeline (3) and a water return branch (4), wherein two ends of the water return branch (4) are respectively communicated with the hot water pipeline (2) and the cold water pipeline (3), and the zero-cold-water gas water heater is characterized by further comprising a water mixing prevention device (5), wherein the water mixing prevention device (5) is respectively connected with the cold water pipeline (3) and the water return branch (4);
the water mixing prevention device (5) can be automatically disconnected when the water pressure of cold water in the water mixing prevention device (5) is changed, or can be automatically communicated with the water return branch (4) when the water pressure of cold water in the water mixing prevention device (5) is increased.
2. The zero-cold-water gas water heater according to claim 1, characterized in that the water mixing prevention device (5) comprises a valve body (51) with a cavity and a valve core (52) movably arranged in the valve body (51) and dividing the cavity into a first cavity (5101) and a second cavity (5102), a first water inlet (511) communicated with the water inlet end (41) of the water return branch (4) is arranged at the upper end of the valve body (51), a first water outlet (512) communicated with the water outlet end (42) of the water return branch (4) is arranged at the lower end of the valve body (51), and the position of the first water outlet (512) is opposite to the position of the first water inlet (511);
the valve core (52) is provided with a through hole (521) for water to pass through, the first cavity (5101) is communicated with the cold water pipeline (3), and the valve core (52) can horizontally move along with the change of the cold water pressure of the first cavity (5101), so that the through hole (521) is communicated or disconnected with the first water inlet (511) and the first water outlet (512).
3. A zero-cold-water gas water heater according to claim 2, wherein the valve core (52) is of a cylindrical structure.
4. A zero-cold-water gas water heater according to claim 2 or 3, wherein the anti-mixing device (5) further comprises an elastic member (53) arranged in the second cavity (5102), and two ends of the elastic member (53) are respectively connected with the inner side walls of the valve core (52) and the second cavity (5102).
5. A zero-cold-water gas water heater according to claim 4, wherein one end of the elastic member (53) is connected with the middle of the valve core (52), and the other end is connected with the middle of the inner side wall of the second cavity (5102) facing the valve core (52).
6. A zero-cold-water gas water heater according to claim 5, wherein the anti-mixing device (5) further comprises at least one limiting portion (54), the limiting portion (54) being arranged in the second cavity (5102) for limiting the displacement of the valve core (52) towards the horizontal movement of the elastic member (53).
7. The zero-cold-water gas water heater as claimed in claim 6, wherein the matching communication area of the through hole (521) with the first water inlet (511) and the first water outlet (512) is the largest when the valve core (52) abuts against the limiting part (54).
8. The zero-cold-water gas water heater as claimed in claim 7, wherein the number of the limiting parts (54) is two, and the two limiting parts (54) are correspondingly arranged on the top inner side and the bottom inner side of the second cavity (5102), respectively.
9. A zero-cold-water gas water heater according to claim 2, wherein the valve body (51) is provided with a second water inlet (513) and a second water outlet (514), the second water inlet (513) is respectively communicated with the water inlet section (31) of the cold water pipeline (3) and the first cavity (5101), and the second water outlet (514) is respectively communicated with the water outlet section (32) of the cold water pipeline (3) and the first cavity (5101).
10. A zero-cold-water gas water heater according to claim 9, wherein the second water inlet (513) and the second water outlet (514) are respectively arranged at the upper and lower ends of the valve body (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920879767.4U CN210688702U (en) | 2019-06-12 | 2019-06-12 | Zero-cold-water gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920879767.4U CN210688702U (en) | 2019-06-12 | 2019-06-12 | Zero-cold-water gas water heater |
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| CN210688702U true CN210688702U (en) | 2020-06-05 |
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| CN201920879767.4U Active CN210688702U (en) | 2019-06-12 | 2019-06-12 | Zero-cold-water gas water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678259A (en) * | 2020-08-13 | 2020-09-18 | 宁波方太厨具有限公司 | Water way structure and gas water heater water supply system applying same |
| CN111678258A (en) * | 2020-08-13 | 2020-09-18 | 宁波方太厨具有限公司 | Water way structure and gas water heater water supply system applying same |
| CN112610721A (en) * | 2021-01-27 | 2021-04-06 | 褚晓 | Valve body structure applied to closed circuit of water heater and capable of changing circuit according to temperature |
-
2019
- 2019-06-12 CN CN201920879767.4U patent/CN210688702U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678259A (en) * | 2020-08-13 | 2020-09-18 | 宁波方太厨具有限公司 | Water way structure and gas water heater water supply system applying same |
| CN111678258A (en) * | 2020-08-13 | 2020-09-18 | 宁波方太厨具有限公司 | Water way structure and gas water heater water supply system applying same |
| CN111678258B (en) * | 2020-08-13 | 2021-01-19 | 宁波方太厨具有限公司 | Water way structure and gas water heater water supply system applying same |
| CN112610721A (en) * | 2021-01-27 | 2021-04-06 | 褚晓 | Valve body structure applied to closed circuit of water heater and capable of changing circuit according to temperature |
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