CN210770444U - Zero cold water check valve subassembly and water heater with current limiting device - Google Patents
Zero cold water check valve subassembly and water heater with current limiting device Download PDFInfo
- Publication number
- CN210770444U CN210770444U CN201921332320.1U CN201921332320U CN210770444U CN 210770444 U CN210770444 U CN 210770444U CN 201921332320 U CN201921332320 U CN 201921332320U CN 210770444 U CN210770444 U CN 210770444U
- Authority
- CN
- China
- Prior art keywords
- water
- flow
- zero
- check valve
- cold water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 206
- 230000000670 limiting effect Effects 0.000 title claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Abstract
The utility model discloses a zero-cold water check valve component with a flow limiting device, which comprises a first valve body, a second valve body and a flow limiting device, wherein the first valve body is provided with a first water inlet, a first water outlet and a first communication port; the second valve body is provided with a second water inlet, a second water outlet and a second communication port; the check valve is used for controlling the water flow direction to flow from the first water inlet of the first valve body to the second water inlet of the second valve body; the flow limiting valve is arranged in an installation groove formed in the second water outlet of the second valve body; the first communication port is communicated with the second communication port; the check valve is arranged on a pipeline communicated with the first communicating port and the second communicating port. The utility model also provides a water heater of zero cold water check valve subassembly with current limiting device. The utility model provides a zero cold water check valve subassembly can effectively avoid causing the problem of zero cold water heater mistake start-up because of cold water outlet flow is too big through the current limiting valve.
Description
Technical Field
The utility model belongs to the technical field of zero cold water heater, concretely relates to zero cold water check valve subassembly and water heater with current limiting device.
Background
The preheating function of the zero-cold-water gas water heater has certain requirements on the installation and use environment. At present, the waterway installation mode of the zero-cold water gas water heater has two types: one is a three-pipe scheme with a cold water pipe, a hot water pipe and a return water pipe. The other scheme is that only a cold water pipe and a hot water pipe are arranged, a one-way valve is additionally arranged at a wash platform at the far water end to communicate the cold water pipe and the hot water pipe, and the communication direction is as follows: the hot water flows to the cold water.
① starting preheating function in water-off state, the internal circulating pump driving the cold and hot water pipe water circulating flow, when the circulating flow is larger than the starting flow, the starting ignition preheating, ② circulating preheating, the cold water pipe water flowing into the water heater, after being heated, flowing into the hot water pipe, through the one-way valve again flowing back to the cold water pipe.
Because the two-pipe scheme of the zero-cold-water heater is communicated with the cold water pipe and the hot water pipe through the zero-cold-water one-way valve, when a cold water faucet of a wash stand, a water flushing closestool, shower cold water or a washing machine is opened, most of tap water flows to a water using point through the cold water pipe, and a small part of tap water flows through the water heater, the hot water pipe and the zero-cold-water one-way valve respectively and then flows to the water using point, wherein the ratio of hot water diversion to cold water diversion is close to 1/3, and the starting flow of the zero-cold-water gas water heater on the market is generally 2; when the water consumption of tap water reaches more than 10L/min, the shunt water amount of the hot water pipe exceeds the starting flow of the water heater, so that the water heater is started by mistake and ignition is influenced, and the user experience is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can prevent effectively that zero cold water heater from opening by mistake zero cold water check valve subassembly with current limiting device.
In order to solve the technical problem, the technical scheme of the utility model is that:
a zero cold water check valve assembly with a flow restricting device, comprising:
the first valve body is provided with a first water inlet, a first water outlet and a first communication port;
the second valve body is provided with a second water inlet, a second water outlet and a second communication port;
the check valve is used for controlling the water flow direction to flow from the first water inlet of the first valve body to the second water inlet of the second valve body; and
the flow limiting valve is arranged in an installation groove formed at the second water outlet of the second valve body;
the first communication port is communicated with the second communication port; the check valve is arranged on a pipeline communicated with the first communicating port and the second communicating port.
Preferably, a limiting clamp spring is further arranged at the mounting groove and used for fixing the flow limiting valve.
Preferably, the first communication port and the second communication port are sleeved or connected in a threaded manner in a sleeve mode.
Preferably, a sealing member is arranged at the interface where the first communication port and the second communication port are communicated.
Preferably, the sealing element is a silicone sealing ring.
Preferably, the central axes of the first water inlet and the first water outlet are vertical, and the central axes of the second water inlet and the second water outlet are vertical.
The utility model also discloses a water heater, it includes the aforesaid a zero cold water check valve subassembly with current limiting device.
Compared with the prior art, the utility model discloses a technological effect mainly embodies: the utility model discloses a zero cold water check valve subassembly with current limiting device, second delivery port department through at the second valve body sets up the restriction valve, when the user uses cold water in a large number, because the current limiting action of second delivery port (cold water export) department restriction valve reduces cold water outflow for the flow of shunting to zero cold water heater reduces below the start flow of zero cold water heater, thereby effectively avoids causing the problem of zero cold water heater mistake start because of cold water outflow is too big.
Drawings
Fig. 1 is a schematic cross-sectional view of a zero-cooling water check valve assembly with a flow-limiting device according to an embodiment of the present invention;
fig. 2 is an exploded view of a zero-cooling water check valve assembly with a flow-limiting device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a preheating cycle of a water heater having a zero-cold-water check valve assembly with a flow limiting device according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of hot water diversion when a water heater with a zero-cold-water check valve assembly having a flow limiting device according to a second embodiment of the present invention boils cold water.
The water mixing valve comprises a valve body 1, a first valve body 2, a second valve body 3, a one-way valve 4, a flow limiting valve 5, a sealing piece 6, a limiting clamp spring 7, a sleeve 11, a first water inlet 12, a first water outlet 13, a first communicating port 21, a second water inlet 22, a second water outlet 23, a second communicating port 100, a zero-cold-water heater 110, a cold water pipe 120, a hot water pipe 130 and a water mixing valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The first embodiment is as follows:
the first embodiment of the present invention provides a zero-cooling water check valve assembly with a flow limiting device, as shown in fig. 1 and 2. A zero-cold water check valve assembly with a flow limiting device comprises a first valve body 1, a second valve body 2, a check valve 3 and a flow limiting valve 4. The first valve body 1 includes a first water inlet 11, a first water outlet 12, and a first communication port 13, and the second valve body 2 includes a second water inlet 21, a second water outlet 22, and a second communication port 23. The one-way valve 3 controls the water flow direction to flow from the first water inlet 11 of the first valve body 1 to the second water inlet 21 of the second valve body 2; the flow limiting valve 4 is arranged in a mounting groove formed at the second water outlet 22 of the second valve body 2; the first valve body 1 and the second valve body 2 are of a three-way structure, and the first communication port 13 is communicated with the second communication port 23; the check valve 3 is provided on a pipe line through which the first communication port 13 and the second communication port 23 communicate.
The first water inlet 11 of the first valve body 1 is used as a hot water inlet, the second water inlet 21 of the second valve body 2 is used as a cold water inlet, and the one-way valve 3 controls the water flow direction to be that hot water flows to cold water. When the zero-cold-water check valve assembly with the flow limiting device in the embodiment is arranged in a pipeline of the two-pipe zero-cold-water heater, when a user uses a large amount of cold water, the flow limiting valve arranged at the second water outlet 22 (cold water outlet) limits the outflow of the cold water, so that the water flow entering the zero-cold-water heater due to shunting is reduced to be below the starting flow of the zero-cold-water heater, and the problem of false starting of the zero-cold-water heater caused by overlarge cold water outflow can be effectively avoided.
Preferably, a limiting clamp spring 6 is further arranged at the mounting groove and used for fixing the flow limiting valve 4. The limiting clamp spring 6 can enable the limiting valve 4 to be fixed in the installation groove, and the limiting valve is prevented from loosening. The limiting clamp spring 6 is formed by bending and molding elastic metal, the limiting clamp spring 6 made by bending the elastic metal provides clamping force for the flow limiting valve 4 when being fixed, and the limiting clamp spring is easier to mount or dismount due to the elastic characteristic of the limiting clamp spring.
Preferably, the first communication port 13 and the second communication port 23 are sleeved by the sleeve 7, and can also be connected by threads, so that the disassembly is convenient.
Preferably, a sealing member 5 is provided at the interface where the first communication port 13 and the second communication port 23 communicate with each other, so as to prevent water in the valve body from leaking out from the interface.
Preferably, sealing member 5 is the silica gel sealing washer, and the silica gel sealing washer is sealed effectual, and the ageing resistance.
Preferably, the flow stabilizing characteristic of the flow limiting valve 4 is 6-8L/min, so that the water flow shunted to the zero-cold water heater is smaller than the starting flow of the zero-cold water heater by 2.5L/min, and the zero-cold water heater is effectively prevented from being started by mistake.
Preferably, the central axes of the first water inlet 11 and the first water outlet 12 are perpendicular, and the central axes of the second water inlet 21 and the second water outlet 22 are perpendicular. The vertically designed check valve component structure is more convenient to be connected with a water pipe connector on a pipeline.
Example two:
the second embodiment of the present invention provides a preheating cycle schematic diagram of a water heater with a zero-cooling water check valve assembly having a flow limiting device, as shown in fig. 3.
A zero-cold-water one-way valve assembly with a flow limiting device is arranged between an external cold water pipe 110 and an external hot water pipe 120 of a zero-cold-water heater 100, a hot water inlet (a first water inlet 11) of a hot water connector (a first valve body 1) of the zero-cold-water one-way valve assembly with the flow limiting device is connected with a hot water outlet of the zero-cold-water heater 100, and a hot water outlet (a first water outlet 12) of the zero-cold-water one-way valve assembly is connected with a hot water. The cold water inlet (second water inlet 21) of the cold water joint (second valve body 2) of the zero-cold-water one-way valve assembly with the flow limiting device is connected with a tap water cold water pipe, and the cold water outlet (second water outlet 22) is connected with the cold water end of the water mixing valve 130 of the wash platform. The water mixing valve 130 of the wash stand is closed, the preheating function of the zero-cold water heater 100 is opened, the internal circulating pump drives the cold and hot water pipe stored water to circularly flow, when the circulating flow is larger than the starting flow of the zero-cold water heater 100, the start is started for ignition and preheating, the cold water pipe stored water flows into the zero-cold water heater 100, flows into the hot water pipe 120 after being heated, and flows back to the cold water pipe 110 again through the zero-cold water one-way valve assembly with the flow limiting device, so that the circulating preheating of the water flow. The water flow circulation direction is as indicated by the arrows in the figure.
The embodiment of the present invention provides a hot water diversion diagram of a water heater with a zero-cold-water check valve assembly having a flow limiting device when cold water is boiled, as shown in fig. 4. At the cold water end of the mixing valve 130 of the fully-opened washstand, the cold water outlet (the second water outlet 22) of the zero-cold-water check valve assembly with the flow limiting device is provided with the flow limiting valve 4, so that the cold water flow can be reduced, the flow split water flowing through the hot water pipe 120 is reduced, and the false start of the zero-cold-water heater 100 is avoided. The water flow diversion direction is as indicated by the arrows in the figure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A zero cold water check valve assembly having a flow restricting device, comprising:
the first valve body is provided with a first water inlet, a first water outlet and a first communication port;
the second valve body is provided with a second water inlet, a second water outlet and a second communication port;
the check valve is used for controlling the water flow direction to flow from the first water inlet of the first valve body to the second water inlet of the second valve body; and
the flow limiting valve is arranged in an installation groove formed at the second water outlet of the second valve body;
the first communication port is communicated with the second communication port; the check valve is arranged on a pipeline communicated with the first communicating port and the second communicating port.
2. The zero-cold-water check valve assembly with a flow limiting device of claim 1, wherein a limiting snap spring is further arranged at the mounting groove and used for fixing the flow limiting valve.
3. The zero cold water check valve assembly with a flow restricting device of claim 1, wherein the first communication port and the second communication port are sleeved or screwed in a sleeve manner.
4. A zero cold water check valve assembly with a flow restricting device according to any one of claims 1 to 3, wherein a seal is provided at an interface where the first communication port and the second communication port communicate.
5. The zero-chill, one-way valve assembly with a flow restricting device of claim 4, wherein said sealing member is a silicone gasket.
6. The zero cold water check valve assembly with a flow restriction of claim 1, wherein said first inlet port is perpendicular to said first outlet port central axis and said second inlet port is perpendicular to said second outlet port central axis.
7. A water heater including a zero cold water check valve assembly with a flow restricting device as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332320.1U CN210770444U (en) | 2019-08-16 | 2019-08-16 | Zero cold water check valve subassembly and water heater with current limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332320.1U CN210770444U (en) | 2019-08-16 | 2019-08-16 | Zero cold water check valve subassembly and water heater with current limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770444U true CN210770444U (en) | 2020-06-16 |
Family
ID=71035418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921332320.1U Active CN210770444U (en) | 2019-08-16 | 2019-08-16 | Zero cold water check valve subassembly and water heater with current limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770444U (en) |
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 |
| CN112228592A (en) * | 2020-09-29 | 2021-01-15 | 宁波方太厨具有限公司 | Check valve and gas water heater system comprising same |
| CN113701361A (en) * | 2021-09-06 | 2021-11-26 | 珠海格力电器股份有限公司 | Starting method and device of water heater and water heater |
| CN114183693A (en) * | 2021-10-26 | 2022-03-15 | 万家乐热能科技有限公司 | Check valve component and hot water circulating system thereof |
-
2019
- 2019-08-16 CN CN201921332320.1U patent/CN210770444U/en active Active
Cited By (5)
| 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 |
| CN112228592A (en) * | 2020-09-29 | 2021-01-15 | 宁波方太厨具有限公司 | Check valve and gas water heater system comprising same |
| CN112228592B (en) * | 2020-09-29 | 2022-01-28 | 宁波方太厨具有限公司 | Check valve and gas water heater system comprising same |
| CN113701361A (en) * | 2021-09-06 | 2021-11-26 | 珠海格力电器股份有限公司 | Starting method and device of water heater and water heater |
| CN114183693A (en) * | 2021-10-26 | 2022-03-15 | 万家乐热能科技有限公司 | Check valve component and hot water circulating system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210770444U (en) | Zero cold water check valve subassembly and water heater with current limiting device | |
| CN206191879U (en) | Zero cold water gas heater and system thereof | |
| CN202371888U (en) | Backflow type water saving device | |
| CN205002340U (en) | Zero cold water instant heating heating water system | |
| CN204460661U (en) | Constant-temperature water faucet electric heater | |
| CN206347748U (en) | A kind of water heater with constant pressure effluent functions | |
| CN104633940A (en) | Constant-temperature water heater with internal circulation water return pipe | |
| CN208075095U (en) | One kind being used for domestic hot water's coolant controlled intelligent domestic system | |
| CN202852077U (en) | Mixed tap with fine-tuning valve | |
| CN202328503U (en) | Straight-line recovery water-saving device | |
| CN201731555U (en) | Solar water heating system combined with fast-heating water heater integrated with pipeline constant-temperature valve | |
| CN210861737U (en) | Zero-cold-water embedded type circulating water system | |
| CN108562048A (en) | A kind of intelligence water system | |
| CN208058039U (en) | Water valve and hot-water heating system | |
| CN203116290U (en) | Water-saving shower device | |
| CN203024396U (en) | Intelligent water heater | |
| CN111365495A (en) | Automatic switch and pressure relief valve of water heater | |
| CN106091384B (en) | Wall-mounted stove | |
| CN204943660U (en) | The built-in water by-pass valve body of forward type | |
| CN201218591Y (en) | Instant heating type water heater | |
| CN205678917U (en) | A kind of automatic regulating device for solar water heater | |
| CN206036382U (en) | Cold and hot dual -purpose tap | |
| CN214714899U (en) | Multifunctional faucet with filtering and heating functions | |
| CN219493145U (en) | Water inlet preventing one-way valve for gas pipe | |
| CN215372080U (en) | Water flowing device with flow stabilizing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |