CN218440824U - Central hot water one-way valve and central hot water system - Google Patents
Central hot water one-way valve and central hot water system Download PDFInfo
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- CN218440824U CN218440824U CN202222228391.5U CN202222228391U CN218440824U CN 218440824 U CN218440824 U CN 218440824U CN 202222228391 U CN202222228391 U CN 202222228391U CN 218440824 U CN218440824 U CN 218440824U
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Abstract
The utility model discloses a central authorities 'hot water check valve and central hot water system, central authorities' hot water check valve includes: the valve body is provided with a hot water flow passage, a cold water flow passage and a bypass pipeline, the hot water flow passage is communicated with the cold water flow passage through the bypass pipeline, and a one-way valve which conducts the hot water flow passage to the cold water flow passage in a one-way mode is arranged in the bypass pipeline; the water heater is characterized in that a step used for installing the check valve is arranged in the bypass pipeline, a detachable valve core is detachably arranged on the valve body, the detachable valve core enables the check valve to be fixed on the step, a channel communicated with the hot water flow channel and a bypass opening communicated with the channel and the check valve are arranged on the detachable valve core, and a filter screen covering the cross section of the channel is arranged on the channel. Impurities are taken away after the water flow is changed, so that blockage is avoided, and meanwhile, the water flow is convenient to clean and maintain.
Description
Technical Field
The utility model relates to a hot water equipment technical field especially relates to a central authorities' hot water check valve and central hot water system.
Background
Zero-cold water heaters circulate water in the pipes and heat the water in the pipes by operation of a water pump. After heating is completed, hot water is filled in the pipeline. If the waterway of the user home is installed by two pipes (without a return pipe), an H valve needs to be installed at the farthest water using point of the user home. The H valve is provided with a one-way valve, so that cold water cannot enter a hot water pipeline when hot water is used, and the water heater can normally circulate when circulating. However, after a long time of use, the one-way valve is blocked by impurities, scales and other substances in the water path, the water heater cannot be normally used after the one-way valve is blocked, and cold water can flow into the water heater when the water heater is used.
The applicant's prior application CN 211667208U discloses a one-way valve with a clearing plug comprising: the valve body is provided with a hot water flow passage, a cold water flow passage and a bypass pipeline, the hot water flow passage is communicated with the cold water flow passage through the bypass pipeline, and a one-way valve which conducts the hot water flow passage to the cold water flow passage in a one-way mode is arranged in the bypass pipeline; the hot water circulation system is characterized in that a cleaning bolt is detachably mounted in the hot water flow channel, the cleaning bolt comprises a filter screen and a magnet arranged in the filter screen, and the filter screen separates the bypass pipeline from the hot water flow channel. The utility model can prevent the one-way valve from being blocked and prolong the service life of the one-way valve; and the cleaning is convenient, only the cleaning bolt needs to be detached during cleaning, and the whole one-way valve does not need to be detached. But the impurity on this check valve's rivers can not clear up the filter screen, and the filter screen blocks up easily, needs frequently to dismantle the clearance.
Disclosure of Invention
To the problem that exists among the prior art, the utility model aims to provide a central authorities' hot water check valve that is difficult to block up, need not frequent clearance.
Another object of the present invention is to provide a central hot water system having the above-mentioned central hot water check valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A central hot water check valve comprising: the valve body is provided with a hot water flow channel, a cold water flow channel and a bypass pipeline, the bypass pipeline is used for communicating the hot water flow channel with the cold water flow channel, and a one-way valve for conducting the hot water flow channel to the cold water flow channel in a one-way mode is arranged in the bypass pipeline; the hot water pipeline bypass valve is characterized in that a step used for installing the check valve is arranged in the bypass pipeline, a detachable valve core is detachably installed on the valve body and used for supporting and fixing the check valve on the step, a channel communicated with the hot water flow channel and a bypass opening communicated with the channel and the check valve are arranged on the detachable valve core, and a filter screen covering the cross section of the channel is arranged on the channel.
As a further explanation of the above scheme, a second filter screen is arranged on the step and used for preventing impurities in the cold water flow passage from entering the check valve.
As a further explanation of the above scheme, the filter screen is a pan-shaped filter screen.
As a further explanation of the above scheme, the top of the pot-shaped filter screen is provided with an outer edge extending outwards, and the filter screen is pressed on the bypass opening through a one-way valve.
As a further explanation of the above solution, a sealing gasket is provided between the detachable valve cartridge and the bypass conduit.
As a further explanation of the above scheme, the filter screen is sleeved in the sealing gasket, and the sealing gasket is pressed on the detachable valve core through the one-way valve.
As a further explanation of the above scheme, a mounting boss corresponding to the bypass pipeline is provided on the valve body, and the mounting boss is communicated with the hot water flow passage; the mounting boss is connected with the detachable valve core through a screw or a thread.
A central hot water system comprising: the hot water pipeline is connected with a hot water outlet end of the water heater, the cold water pipeline 1 is connected with a cold water inlet end of the water heater, and the hot water pipeline and the cold water pipeline respectively provide hot water and cold water for the water consumption point; the central hot water check valve is characterized in that the water consumption point is provided with any one of the central hot water check valves, and a hot water flow passage and a cold water flow passage of the central hot water check valve are respectively connected with the hot water pipeline and the cold water pipeline in series.
The beneficial effects of the utility model are that.
1. Impurity in the filter screen filtration hot-water avoids impurity to get into the normal work that the check valve influenced the check valve, when hot water was exported from the import flow direction of hot water runner, because of the filter screen is located the passageway, rivers can take away the impurity that the filter screen front end was held back through the filter screen, avoids the filter screen to block up. Still probably have some impurity to block up filter screen or check valve after long-time the use and need maintain the change, at this moment just can dismantle the removable valve core, take out filter screen and check valve, clear up and maintain easy operation convenience.
2. The filter screen is set to be pot-shaped, so that the filter screen can be sleeved on the bypass opening, and the filter screen is convenient to disassemble and assemble.
Drawings
Fig. 1 is an exploded view of a central hot water check valve according to the present invention.
Fig. 2 is a cross-sectional view of the central hot water check valve provided by the present invention.
Fig. 3 is a cross-sectional view of the central hot water check valve in the impurity cleaning state according to the present invention.
Fig. 4 is a cross-sectional view of another embodiment of the central hot water check valve according to the present invention.
Reference numerals indicate the same.
1: detachable valve core, 2: a filter screen, 3: gasket, 4: one-way valve, 5: valve body, 6: screw, 7: a second filter.
51: hot water flow passage, 52: cold water flow passage, 53: a bypass conduit.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may, clearly or implicitly, include one or more of the features, and in the description of the invention, "at least" means one or more than one unless specifically defined otherwise.
In the present invention, unless otherwise explicitly defined or limited, the terms "assembled", "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless otherwise specified and limited, "a first feature" on "or" under "a second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact through another feature therebetween. Also, the first feature "above," "below," and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply an elevation where the first feature is at a higher level than the second feature. First feature "above", "below" and "under" second feature may include first feature being directly below or obliquely below the second feature, or merely indicating that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Example 1.
As shown in fig. 1 to 3, a center hot water check valve includes: a valve body 5, a hot water flow passage 51, a cold water flow passage 52, and a bypass pipe 53 provided in the valve body 5, the bypass pipe 53 communicating the hot water flow passage 51 and the cold water flow passage 52, and a check valve 4 for unidirectionally communicating the hot water flow passage 51 with the cold water flow passage 52 being provided in the bypass pipe 53; the water heater is characterized in that a step used for installing the check valve 4 is arranged in the bypass pipeline 53, a detachable valve core 1 is detachably installed on the valve body 5, the detachable valve core 1 is used for fixedly jacking the check valve 5 on the step, a channel communicated with the hot water flow channel 51 and a bypass opening for communicating the channel with the bypass pipeline 53 are arranged on the detachable valve core 1, and a filter screen 2 for covering the cross section of the channel is arranged on the channel.
Like this, in the in-service use in-process, hot water is from hot water runner 51 when flowing to cold water runner 52 through check valve 4, and filter screen 2 filters the impurity in the hot water and avoids impurity to get into the normal work that check valve 4 influenced check valve 4, when hot water flows to the export from hot water runner 51's import, because of filter screen 2 is located the passageway that can dismantle the case, rivers can take away the impurity that filter screen 2 front end was held back through the filter screen, avoid filter screen 2 to block up. Still probably have some impurity to block up filter screen or check valve after long-time the use and need maintain the change, at this moment just can dismantle the case of dismantling, take out filter screen and check valve, clear up and maintain easy operation convenience.
Specifically, the filter screen 2 is a pan-shaped filter screen. The top of the pot-shaped filter screen is provided with an outer edge extending outwards, and after the pot-shaped filter screen enters the channel from the bypass opening, the outer edge is sleeved on the bypass opening and then is abutted against the one-way valve through the detachable valve core to be fixed in a contact manner.
Further preferably, a sealing gasket 3 is provided between the detachable valve cartridge 1 and the bypass pipe 53. In this embodiment, pot-shaped filter screen cover is established sealed in the pad, sealed pad compresses tightly on can dismantling the case through the check valve, and pot-shaped filter screen gets into in the passageway. The sealing effect is enhanced by the sealing gasket, and water is prevented from flowing through a gap between the detachable valve core and the bypass pipeline.
And the valve body 5 is provided with a mounting boss corresponding to the bypass pipeline 53, and the mounting boss is communicated with the hot water flow channel. The mounting boss is used for mounting the detachable valve core. In this embodiment, the mounting boss is connected to the detachable valve core 1 by a screw 6, and in other embodiments, the mounting boss may be connected to the detachable valve core by a screw or by being clamped.
Further, a first sealing ring is arranged between the mounting boss and the detachable valve core 1. A second sealing ring is arranged between the non-return valve 4 and the bypass line 53.
In some embodiments, as shown in fig. 4, a second filter screen 7 is disposed on the step, and the second filter screen 7 is disposed to prevent impurities in the cold water flow passage from entering the check valve to affect the use of the check valve, so as to further prevent the impurities from blocking the check valve.
Example 2.
A central hot water system comprising: the water heater comprises a water heater, a hot water pipeline, a cold water pipeline and a water consumption point, wherein the hot water pipeline is connected with a hot water outlet end of the water heater, the cold water pipeline 1 is connected with a cold water inlet end of the water heater, and the hot water pipeline and the cold water pipeline respectively provide hot water and cold water for the water consumption point; the hot water supply system is characterized in that the central hot water check valve in embodiment 1 is arranged at the water consumption point, and a hot water flow passage and a cold water flow passage of the central hot water check valve are respectively connected with the hot water pipeline and the cold water pipeline in series.
Wherein, the water heater is the gas heater. In other embodiments, the water heater is one or more of an electric water heater, a solar water heater and an air energy water heater, and is not limited to the embodiment.
This embodiment provides a central hot water system, which has all the advantages of embodiment 1, and will not be described herein again.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (8)
1. A central hot water check valve comprising: the valve body is provided with a hot water flow channel, a cold water flow channel and a bypass pipeline, the bypass pipeline is used for communicating the hot water flow channel with the cold water flow channel, and a one-way valve for conducting the hot water flow channel to the cold water flow channel in a one-way mode is arranged in the bypass pipeline; the water heater is characterized in that a step used for installing the check valve is arranged in the bypass pipeline, a detachable valve core is detachably arranged on the valve body, the detachable valve core enables the check valve to be fixed on the step, a channel communicated with the hot water flow channel and a bypass opening communicated with the channel and the check valve are arranged on the detachable valve core, and a filter screen covering the cross section of the channel is arranged on the channel.
2. A central hot water non return valve according to claim 1 wherein a second filter is provided on the step.
3. The central hot water check valve according to claim 1, wherein the filter screen is a pan-shaped filter screen.
4. A central hot water non return valve according to claim 3 wherein the top of the pan shaped filter screen is provided with an outwardly extending rim, the filter screen being pressed against the bypass opening by the non return valve.
5. A central hot water one-way valve according to claim 3, characterized in that a sealing gasket is arranged between the removable cartridge and the bypass pipe.
6. The central hot water check valve according to claim 5, wherein the filter screen is sleeved in the gasket, and the gasket is pressed on the detachable valve core through the check valve.
7. The central hot water check valve according to claim 1, wherein a mounting boss corresponding to the bypass pipe is provided on the valve body, and the mounting boss is communicated with the hot water flow passage; the mounting boss is connected with the detachable valve core through a screw or a thread.
8. A central hot water system comprising: the hot water pipeline is connected with a hot water outlet end of the water heater, the cold water pipeline is connected with a cold water inlet end of the water heater, and the hot water pipeline and the cold water pipeline respectively provide hot water and cold water for the water consumption point; the central hot water check valve as claimed in any one of claims 1 to 7 is arranged at the water consumption point, and a hot water flow passage and a cold water flow passage of the central hot water check valve are respectively connected with the hot water pipeline and the cold water pipeline in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222228391.5U CN218440824U (en) | 2022-08-23 | 2022-08-23 | Central hot water one-way valve and central hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222228391.5U CN218440824U (en) | 2022-08-23 | 2022-08-23 | Central hot water one-way valve and central hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218440824U true CN218440824U (en) | 2023-02-03 |
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ID=85094560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222228391.5U Active CN218440824U (en) | 2022-08-23 | 2022-08-23 | Central hot water one-way valve and central hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218440824U (en) |
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2022
- 2022-08-23 CN CN202222228391.5U patent/CN218440824U/en active Active
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