CN221974356U - A temperature-controlled shut-off check valve for a zero-cold-water system and a gas water heater thereof - Google Patents
A temperature-controlled shut-off check valve for a zero-cold-water system and a gas water heater thereof Download PDFInfo
- Publication number
- CN221974356U CN221974356U CN202420374612.6U CN202420374612U CN221974356U CN 221974356 U CN221974356 U CN 221974356U CN 202420374612 U CN202420374612 U CN 202420374612U CN 221974356 U CN221974356 U CN 221974356U
- Authority
- CN
- China
- Prior art keywords
- valve core
- cold water
- pipe section
- hot water
- sealing ring
- 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
Landscapes
- Temperature-Responsive Valves (AREA)
Abstract
The utility model discloses a temperature control stop check valve of a zero cold water system, which is characterized by comprising a hot water connecting pipe section, a cold water connecting pipe section, a clamping piece, an outer valve core, an inner and outer valve core sealing ring, an outer valve core sealing ring, a temperature sensing memory alloy spring and a common spring; the clamping piece is provided with a cylinder, the outer valve core is movably inserted into the inner space of the cylinder, and the common spring is arranged in an annular gap formed by the outer valve core and the cylinder of the clamping piece; the end face of the inner valve core is provided with a hollow structure, and the inner valve core sealing ring and the outer valve core sealing ring are sleeved outside the inner valve core and are tightly contacted with the inner wall of the outer valve core; external valve core sealing ring arrangement an end of the inner spool; the middle part of the inner valve core is provided with a first middle shaft, and one end of the temperature sensing memory alloy spring is connected to the first middle shaft; the middle part of the outer valve core is provided with a second center shaft, and the other end of the temperature sensing memory alloy spring is connected to the second center shaft. The utility model has good stability and can prevent hot water in the cold water pipeline from entering the hot water pipeline.
Description
Technical Field
The utility model relates to the technical field of water heaters, in particular to a temperature control stop check valve of a zero cold water system and a gas water heater thereof.
Background
The two-pipe type zero cold water system of the existing gas water heater adopts a cold water pipe to replace a water return pipe, cold water is prevented from entering a hot water pipe by utilizing a one-way valve, the existing temperature control stop valve realizes the on-off of a waterway through a memory alloy, temperature sensing paraffin or an electromagnetic valve, but the following defects exist: ① The memory spring is difficult to reset in the cooling state; ② The power needs to be supplied and the cost is high; ③ The volume is large, and the structure is complex; ④ When the water pressure difference is large, the memory spring is difficult to act and even fails. If the Chinese patent grant publication number is CN218454987U, a zero cold water system of a temperature sensing one-way valve and a gas water heater is disclosed, wherein a circulating outlet and a circulating inlet in the temperature sensing one-way valve are coaxially arranged and are mutually communicated so as to enable a cold water valve body to be assembled with a hot water valve body, the conduction direction of the one-way valve is the direction from the hot water valve body to the cold water valve body to be opened unidirectionally, so that water in the hot water valve body flows unidirectionally to the cold water valve body, a temperature sensing driving piece is arranged on the hot water valve body so as to sense the water temperature in the hot water valve body, and the temperature sensing driving piece drives a switch valve to slide back and forth according to the water temperature of the hot water valve body so as to control the opening and closing actions of the switch valve, and further control the on-off of a pipeline between the hot water valve body and the cold water valve body. However, the temperature-sensing one-way valve with the structure has the defects that although cold water can be prevented from entering the hot water pipe, hot water can not be prevented from entering the cold water pipe, so that residual hot water in the cold water pipe after preheating is wasted, and the use of cold water is influenced. For this reason, there is a need for further improvements in the art.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides the zero-cold water system temperature control stop check valve which is stable and reliable, does not need to be electrified, has low cost and is easy to use, can effectively control the on-off of a hot water pipeline and a cold water pipeline according to the water temperature flowing through a valve body, can realize a one-way function and prevents hot water in the cold water pipeline from entering the hot water pipeline.
Another object of the present utility model is to provide a gas water heater.
The utility model adopts the following technical proposal to realize the aim: a zero cold water system temperature control stop one-way valve is characterized by comprising a hot water connecting pipe section, a cold water connecting pipe section, a clamping piece, an outer valve core, an inner valve core sealing ring, an outer valve core sealing ring, a temperature sensing memory alloy spring and a common spring, wherein the hot water connecting pipe section is connected with the cold water connecting pipe section in a connecting way.
The clamping piece is provided with a cylinder, the outer valve core is movably inserted into the inner space of the cylinder, and the common spring is arranged in an annular gap formed by the outer valve core and the cylinder of the clamping piece.
The end face of the inner valve core is provided with a hollow structure, and the inner valve core sealing ring and the outer valve core sealing ring are sleeved outside the inner valve core and are tightly contacted with the inner wall of the outer valve core; an outer spool seal ring is disposed at an end of the inner spool.
The middle part of the inner valve core is provided with a first middle shaft, and one end of the temperature sensing memory alloy spring is connected to the first middle shaft; the middle part of the outer valve core is provided with a second center shaft, and the other end of the temperature sensing memory alloy spring is connected to the second center shaft; the temperature-sensitive memory alloy spring rapidly stretches when exceeding the set temperature and rapidly contracts when being lower than the set temperature.
As a further explanation of the above scheme, an annular space is formed between the outer side wall surface of the inner valve core and the outer valve core, and the inner valve core sealing ring and the outer valve core sealing ring are arranged in the annular space.
Further, the clamping piece is provided with a positioning ring piece, the positioning ring piece is clung to the inner wall of the cold water connecting pipe section, and the positioning ring piece is fixedly connected with the cylinder.
Further, the locating ring piece is arranged outside the cylinder, and a supporting connecting frame is arranged between the locating ring piece and the cylinder, so that the cylinder can be arranged in the middle.
Further, a clamping groove is formed in the top end of the inner valve core, and the outer valve core sealing ring is installed in the clamping groove.
Further, one end of the outer valve core is provided with a plurality of supporting feet which movably penetrate through the end parts of the clamping pieces.
Further, the hot water connecting pipe section and the cold water connecting pipe section are connected in a threaded mode, and the clamping piece is fixed.
The gas water heater is characterized by comprising a water heater main body and a zero cold water system temperature control stop check valve, wherein a hot water connecting pipe section of the zero cold water system temperature control stop check valve is communicated with a hot water pipe of the zero cold water system, and a cold water connecting pipe section of the zero cold water system temperature control stop check valve is connected with a cold water pipe of the zero cold water system.
The beneficial effects achieved by adopting the technical proposal of the utility model are that.
The utility model adopts a temperature control stop one-way valve structure mainly composed of a hot water connecting pipe section, a cold water connecting pipe section, a clamping piece, an external valve core, an internal valve core sealing ring, an external valve core sealing ring, a temperature sensing memory alloy spring and a common spring, wherein the hot water connecting pipe section is connected with the cold water connecting pipe section in a connection way; the clamping piece is provided with a cylinder, the outer valve core is movably inserted into the inner space of the cylinder, and the common spring is arranged in an annular gap formed by the outer valve core and the cylinder of the clamping piece; the end face of the inner valve core is provided with a hollow structure, and the inner valve core sealing ring and the outer valve core sealing ring are sleeved outside the inner valve core and are tightly contacted with the inner wall of the outer valve core; external valve core sealing ring arrangement an end of the inner spool; the middle part of the inner valve core is provided with a first middle shaft, and one end of the temperature sensing memory alloy spring is connected to the first middle shaft; the middle part of the outer valve core is provided with a second center shaft, and the other end of the temperature sensing memory alloy spring is connected to the second center shaft; the temperature sensing memory alloy spring stretches rapidly under the condition of exceeding the set temperature, contracts rapidly under the condition of being lower than the set temperature, the temperature control stop one-way valve is simple in structure, small in size, free of electrifying, low in cost and easy to use, can effectively control the on-off of the hot water pipeline and the cold water pipeline according to the water temperature flowing through the valve body, can realize one-way function, and prevents hot water in the cold water pipeline from entering the hot water pipeline.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of a temperature-controlled stop check valve part of the utility model.
Fig. 2 is a cross-sectional view of the temperature-controlled shut-off check valve of the present utility model.
FIG. 3 is a schematic diagram of a structure of the temperature control stop check valve in a cold water non-differential pressure isolation state.
Fig. 4 is a schematic diagram of a cold water unidirectional conduction state structure.
Fig. 5 is a schematic view of a hot water deformed cut-off state structure.
Fig. 6 is a schematic diagram of a zero cold water system installation.
Reference numerals illustrate: 1. the gas water heater comprises a gas water heater main body 2, a hot water pipe 3, a cold water pipe 4, a hot water connecting pipe section 5, a cold water connecting pipe section 6, a clamping piece 6-1, a cylinder 6-2, a positioning ring piece 6-3, a supporting connecting frame 7, an outer valve core 7-1, a middle shaft II 7-2, a supporting foot 8, an inner valve core 8-1, a middle shaft I8-2, a clamping groove 9, an inner valve core sealing ring 10, an outer valve core sealing ring 11, a temperature sensing memory alloy spring 12, a common spring 13, a furthest water point 14 and a temperature control stop one-way valve.
Detailed Description
In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the utility model, "at least" means one or more, unless clearly specifically defined otherwise.
In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1 to 6, the present utility model is a temperature control stop check valve of a zero cold water system and a gas water heater thereof, wherein the temperature control stop check valve 14 is installed at the furthest water point 13 of the zero cold water system of the gas water heater main body 1, and is used for communicating a hot water pipe 2 with a cold water pipe 3, conveying cold water remained in the hot water pipe to the cold water pipe, and preventing hot water with a temperature higher than a set temperature from entering the cold water pipe.
The temperature control stop check valve structurally comprises a hot water connecting pipe section 4, a cold water connecting pipe section 5, a clamping piece 6, an outer valve core 7, an inner valve core 8, an inner valve core sealing ring 9, an outer valve core sealing ring 10, a temperature sensing memory alloy spring 11 and a common spring 12, wherein the hot water connecting pipe section 4 is connected with the cold water connecting pipe section 5 in a connecting way. The hot water connecting pipe section 4 is connected with the cold water connecting pipe section 5 in a threaded mode, and the clamping piece 6 is fixed. The hot water connecting pipe section 4 is communicated with the hot water pipe 2 of the zero cold water system, and the cold water connecting pipe section 5 is connected with the cold water pipe 3 of the zero cold water system. The clamping piece 6 is provided with a cylinder 6-1, the outer valve core is movably inserted into the inner space of the cylinder, and the common spring is arranged in an annular gap formed by the outer valve core and the cylinder of the clamping piece; the end face of the inner valve core 8 is provided with a hollow structure, and an inner valve core sealing ring 9 and an outer valve core sealing ring are sleeved outside the inner valve core 8 and are in close contact with the inner wall of the outer valve core 7; an outer spool seal ring 10 is provided at an end of the inner spool 8; the middle part of the inner valve core 8 is provided with a middle shaft I8-1, and one end of the temperature sensing memory alloy spring is connected to the middle shaft I8-1; the middle part of the outer valve core 7 is provided with a middle shaft II 7-1, and the other end of the temperature sensing memory alloy spring is connected to the middle shaft II 7-1; the temperature-sensitive memory alloy spring rapidly stretches when exceeding the set temperature and rapidly contracts when being lower than the set temperature. An annular space is formed between the outer side wall surface of the inner valve core and the outer valve core, and the inner valve core sealing ring and the outer valve core sealing ring are arranged in the annular space.
The clamping piece 6 is provided with a positioning ring piece 6-2, the positioning ring piece is tightly attached to the inner wall of the cold water connecting pipe section, and the positioning ring piece is fixedly connected with the cylinder. The locating ring piece is arranged outside the cylinder, and a supporting connecting frame 6-3 is arranged between the locating ring piece and the cylinder, so that the cylinder can be arranged in the middle. The top end of the inner valve core is provided with a clamping groove 8-2, and the outer valve core sealing ring 10 is installed in the clamping groove. One end of the outer valve core is provided with a plurality of supporting feet 7-2 which movably penetrate through the end parts of the clamping pieces.
The temperature control stop check valve has three working states.
In the first state, as shown in fig. 3, the cold water is in an isolated state without pressure difference, in this state, the two ends of the valve body are not in pressure difference, the hot water pipe section is cold water, the temperature sensing memory alloy spring is in a contracted state, under the action of the common spring, the outer valve core is pushed to move towards the hot water connecting pipe section, and the inner valve core, the inner valve core sealing ring, the outer valve core sealing ring and the outer valve core sealing ring are driven to move, so that the outer valve core sealing ring is propped against the wall surface of the hot water connecting pipe section to be in contact with the wall surface of the hot water connecting pipe section, and an isolated state is realized.
As shown in fig. 4, the second state is a cold water one-way conduction state, in this state, the hot water pipe section is cold water, the pressure of the hot water pipe section is increased and overcomes the pressure of a common spring, and the outer valve core and the inner valve core are simultaneously jacked up, so that the pipeline is conducted.
As shown in fig. 5, in the third state, the hot water deformation is in a cut-off state, in this state, the pressure of the hot water pipe section is greater than that of the cold water pipe section, the hot water pipe section is hot water, heat is transferred to the temperature sensing memory alloy spring through the hollowed section of the inner valve core, because the hot water pressure of the inner valve core is equal to that of the hot water connecting pipe section, the temperature sensing memory alloy spring can be stretched without overcoming the pressure difference of two ends, the outer valve core and the inner valve core are driven to stretch towards the two ends, the stretching elasticity of the temperature sensing memory alloy spring is greater than that of the common spring, the common spring is driven to compress, the outer valve core moves towards the cold water connecting pipe section, the inner valve core moves towards the hot water connecting pipe section and pushes the sealing ring of the outer valve core to the sealing end face, and the hot water pipe and the cold water pipe are cut off.
When the gas water heater does not work, the hot water connecting pipe section and the cold water connecting pipe section are cold water and have no pressure difference, and the temperature control stop check valve is in a cold water pressure difference-free isolation state.
When the gas water heater just begins to work, the hot water connecting pipe section and the cold water connecting pipe section are both cold water, the water pressure of the hot water connecting pipe section is large, and the temperature control stop check valve is in a cold water one-way conduction state.
When the gas water heater works for a period of time, cold water in the hot water connecting pipe section is discharged, the temperature sensing memory alloy spring deforms after the hot water enters the temperature control stop one-way valve, and the temperature control stop one-way valve is in a hot water deformation stop state, so long as the hot water connecting pipe section is hot water, the state is kept all the time.
When the temperature of the hot water in the hot water connecting pipe section is reduced to the set temperature of the temperature sensing memory alloy spring, the temperature sensing memory alloy spring contracts and can drive the outer valve core and the inner valve core to move towards the center, so that the function of automatically discharging cold water into the cold water pipe is realized.
Compared with the prior art, the temperature control stop check valve has the advantages of simple structure, small volume, no need of power on, low cost and easy use, can effectively control the on-off of the hot water pipeline and the cold water pipeline according to the water temperature flowing through the valve body, can realize a one-way function, and can prevent hot water in the cold water pipeline from entering the hot water pipeline.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (8)
1. The zero cold water system temperature control stop one-way valve is characterized by comprising a hot water connecting pipe section, a cold water connecting pipe section, a clamping piece, an external valve core, an internal valve core sealing ring, an external valve core sealing ring, a temperature sensing memory alloy spring and a common spring, wherein the hot water connecting pipe section is connected with the cold water connecting pipe section in a connecting way;
The clamping piece is provided with a cylinder, the outer valve core is movably inserted into the inner space of the cylinder, and the common spring is arranged in an annular gap formed by the outer valve core and the cylinder of the clamping piece;
The end face of the inner valve core is provided with a hollow structure, and the inner valve core sealing ring and the outer valve core sealing ring are sleeved outside the inner valve core and are tightly contacted with the inner wall of the outer valve core; external valve core sealing ring arrangement an end of the inner spool;
The middle part of the inner valve core is provided with a first middle shaft, and one end of the temperature sensing memory alloy spring is connected to the first middle shaft; the middle part of the outer valve core is provided with a second center shaft, and the other end of the temperature sensing memory alloy spring is connected to the second center shaft.
2. The zero water chilling system temperature-controlled stop check valve of claim 1, wherein an annular space is formed between an outer sidewall of the inner valve core and the outer valve core, and the inner and outer valve core sealing rings are disposed in the annular space.
3. The zero cold water system temperature control stop check valve according to claim 1, wherein the clamping piece is provided with a positioning ring piece, the positioning ring piece is tightly attached to the inner wall of the cold water connecting pipe section, and the positioning ring piece is fixedly connected with the cylinder.
4. A zero cooling water system temperature control stop check valve according to claim 3, wherein the positioning ring is arranged outside the cylinder, and a support connecting frame is arranged between the positioning ring and the cylinder, so that the cylinder can be arranged centrally.
5. The zero water chilling system temperature-control stop check valve as claimed in claim 1, wherein a clamping groove is formed in the top end of the inner valve core, and the outer valve core sealing ring is installed in the clamping groove.
6. The zero water chilling system temperature-controlled shut-off check valve of claim 1, wherein one end of the outer spool is provided with a plurality of support feet that are movable through the ends of the clamping member.
7. The zero-cooling water system temperature-control stop check valve according to claim 1, wherein the hot water connection pipe section and the cold water connection pipe section are connected in a threaded manner and the clamping member is fixed.
8. A gas water heater, characterized in that it comprises a water heater main body and a temperature control stop check valve as claimed in any one of claims 1-7, the hot water connecting pipe section of the stop check valve is communicated with the hot water pipe of a zero cold water system, and the cold water connecting pipe section of the temperature control stop check valve of the zero cold water system is connected with the cold water pipe of the zero cold water system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420374612.6U CN221974356U (en) | 2024-02-28 | 2024-02-28 | A temperature-controlled shut-off check valve for a zero-cold-water system and a gas water heater thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420374612.6U CN221974356U (en) | 2024-02-28 | 2024-02-28 | A temperature-controlled shut-off check valve for a zero-cold-water system and a gas water heater thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221974356U true CN221974356U (en) | 2024-11-08 |
Family
ID=93331236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420374612.6U Active CN221974356U (en) | 2024-02-28 | 2024-02-28 | A temperature-controlled shut-off check valve for a zero-cold-water system and a gas water heater thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221974356U (en) |
-
2024
- 2024-02-28 CN CN202420374612.6U patent/CN221974356U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102380176B1 (en) | Oil temperature control system for valve assembly, heat exchange assembly, and gearbox | |
| CN106051214B (en) | A kind of water mixing valve of automatic water temperature regulation | |
| US4518007A (en) | Automatic hot water recovery system | |
| CN217207889U (en) | Temperature sensing check valve and water heater | |
| CN208871106U (en) | Unidirectional Tem .-control stop valve group and the water heater hot-water circulatory system | |
| US3136337A (en) | Thermostatically operated diversion valve for engine cooling system | |
| CN203202295U (en) | Temperature control valve | |
| CN215496840U (en) | Power battery temperature control balance runner system | |
| CN215673752U (en) | An intelligent temperature-sensing check valve and hot water system | |
| CN201561541U (en) | Wall-mounted gas boiler having anti-freezing device | |
| CN208871036U (en) | Recycle temperature control bathing valve and the energy-saving and water-saving type water heater hot-water circulatory system | |
| CN108087531B (en) | heat exchange components | |
| CN218935463U (en) | Temperature controller | |
| CN201547323U (en) | Temperature control mixing valve structure | |
| CN220582772U (en) | Constant temperature water outlet system with heating device | |
| CN209308816U (en) | An integrated water channel thermostat assembly | |
| CN207962829U (en) | Heat-exchange system for drying equipment | |
| CN221122542U (en) | Backwater device and water heater | |
| CN109695704B (en) | a heat exchange device | |
| CN104832676B (en) | Cold and hot water shunting valve | |
| CN217208009U (en) | Automatic temperature control flow valve for fluid medium | |
| CN221401971U (en) | Temperature control diverter valve | |
| CN117193426A (en) | Insulation structure and temperature control system for deep sea environment simulation device | |
| CN218934554U (en) | Novel integrated double-outlet thermostat | |
| CN221525725U (en) | Natural gas pipeline anti-freezing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |