CN2521458Y - Double-directional protection valve for water heater - Google Patents
Double-directional protection valve for water heater Download PDFInfo
- Publication number
- CN2521458Y CN2521458Y CN 02209752 CN02209752U CN2521458Y CN 2521458 Y CN2521458 Y CN 2521458Y CN 02209752 CN02209752 CN 02209752 CN 02209752 U CN02209752 U CN 02209752U CN 2521458 Y CN2521458 Y CN 2521458Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- way valve
- water heater
- way
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
Provided is a valve body with an inlet and an outlet of two-way protection valve of a water heater. Two one-way valves in opposite directions are provided in the middle of the inlet and the outlet of the valve body, wherein one one-way valve is a water inlet one-way valve and the other one-way valve is a decompression one-way valve. A spring for resisting the water static pressure in a water tank is disposed between a valve core of the decompression one-way valve and the valve body. A one-way valve base and a matched one-way valve core are better disposed in the valve body, the one-way valve core is provided with another one-way valve opening in opposite direction and a matched one-way valve core. The spring can resist the water pressure in the water heater, enabling the decompression valve core to keep a closure state. The heated and expanded water pressure in the water heater can overcome the resistance of the spring and open the decompression valve core and flow back to a water inlet pipe, effectively preventing improper dripping and leakage.
Description
Technical field: water heater bidirectional protective valve is a kind of compound one-way valve that is arranged on the storage-type electric water heater water inlet flow channel, both can the check water inlet reflux, and can reversely under certain conditions close and open again, makes to add hot water expansion pressure release.
Background technique: existing water heater water inlet flow channel is provided with into water one-way valve, and one-way valve has only the valve seat (or claiming valve port) of a direction and the spool that matches.One-way valve can make water inlet the time open spool automatically, and the water in again can the check water heater refluxes, and does not have to prevent the inlet pipeline system that the current in the water heater lose behind the hydraulic pressure, the danger of dry combustion method occurs.In order to prevent the harm of superpressure blast in the water heater, water heater also is provided with safety valve.When water heater in static heating process, owing to there are not the row pressure parts, can only come out during water body expansion from the safety valve water clock, make troubles to the user, the bad border around the influence, the frequent unlatching of safety valve also can cause damage and lack of proper care.The mistuning if any the people blocks water clock will influence the safety effect of safety valve, occurs unexpected dangerous.
Summary of the invention: the utility model is exactly the problem that will solve the water clock of water heater heating process, and provides a kind of unidirectional water inlet to end for reverse time, can in time discharge heating water body expansion part again and the water heater bidirectional protective valve of pressure release in time.
Water heater bidirectional protective valve of the present utility model; have and bring mouthful valve body of outlet into; it is characterized in that: have two rightabout one-way valves between the valve body import export; one of them one-way valve is the water inlet one-way valve; another one-way valve is the pressure release one-way valve, is provided with the spring of hydrostatic in the opposing water tank between the spool of pressure release one-way valve and the valve body.Such valve body is two rightabout one-way valves arranged side by side and the water heater bidirectional protective valve that forms simultaneously, be arranged on the water inlet tube of water heater road, an one-way valve still is the water inlet one-way valve, and another is for the pressure release one-way valve opposite with the water inlet one-way valve and have the spring of resisting certain pressure reduction; The pressure release one-way valve on general during water cut spring can resist the hydraulic pressure in the water heater and keep closed condition, but when static heating makes the water body inside and outside differential pressure greater than spring pressure in the water heater, just can open pressure release automatically, discharge adds the water body of thermal expansion, has prevented from safety valve escape.After the pressure release, the pressure release nonreturn valve core is closed under the effect of spring again.For further simplified structure, make valve body be convenient to processing and assembling more, the nonreturn valve core that has a unidirectional valve seat in the valve body and match, nonreturn valve core has rightabout check-valve port and another nonreturn valve core of matching, one of them nonreturn valve core be the pressure release nonreturn valve core and and valve body between be provided with the spring of resist the interior hydrostatic of water tank.Still have the unidirectional valve seat (or check-valve port) of a direction and the nonreturn valve core that matches in the valve body, form the water inlet one-way valve, still bonding refluxes to the water inlet check; Check-valve port of other direction (or unidirectional valve seat) and the nonreturn valve core that matches are the one-way valve of pressure release, and the spring of resisting hydrostatic in the water tank is being set between the spool of pressure release and the valve body.When last water cut, spring can be resisted the hydraulic pressure in the water heater, makes the spool of pressure release keep closed condition.When static state adds hot water, the water body expansion in the water heater, the hydraulic pressure of expansion will overcome the resistance of spring, opens the spool of pressure release one-way valve, and the water body partial reflux that makes expansion has prevented from the safety valve water clock effectively to intake pipe.The one-way valve of both direction can be the structure of the one-way valve of various ways, spool can have the spring that return is closed, also can lean on the pressure reduction of spool both sides or the gravity return of spool to close, but the spool of pressure release one-way valve must have the spring of hydrostatic in the opposing water tank, also keeps closed condition when the inlet pipeline system is cut off the water supply.In order to make designs simplification, the water inlet nonreturn valve core is preferably the gravity spherical valve core of the other direction check-valve port that is arranged on the pressure release nonreturn valve core; For the ease of the installation of spring, spring is for being arranged on pressure spring between inboard jump ring of water intake and the pressure release nonreturn valve core equally.
Water heater bidirectional protective valve of the present utility model; compare with existing technology and to have the water that not only can when last water cut, prevent in the water heater and reflux and discharge; can when the rising of water heater preheating water temperature, volumetric expansion, increased pressure, oppositely open again; the meaningless water clock of anti-sealing; the pressure difference of guaranteeing pressure in the water heater and intake pipe system prevents the pressure superpressure in the water heater in certain scope.
Description of drawings: accompanying drawing has been represented the broken section structural representation of a kind of water heater bidirectional protective of the utility model valve.Example below in conjunction with accompanying drawing further specifies the utility model.
Embodiment: this water heater bidirectional protective valve of the present utility model (seeing accompanying drawing); the valve body 5 that has import export is arranged; the nonreturn valve core 3 that has unidirectional valve seat in the valve body and match; the reverse nonreturn valve core 4 that nonreturn valve core has rightabout check-valve port and matches; form two opposite one-way valves arranged side by side, be provided with the spring 2 of hydrostatic in the opposing water tank between pressure release nonreturn valve core 3 wherein and the valve body.Be arranged on the check-valve port of spool 3 and the spherical valve core that matches, form the water inlet one-way valve, the unidirectional water inlet check of water of intake pipe system is refluxed; The cone shaped one-way valve seat of other direction and the cone shaped one-way valve core 3 that matches are the one-way valve of pressure release, and the spring of hydrostatic is for being arranged on pressure spring between inboard jump ring circle 1 of water intake and the pressure release nonreturn valve core in the opposing water tank.The valve body import export has connecting thread respectively, is connected during use in the water inlet tube of water heater road, and valve body is vertically installed.When needs added water in water heater, the valve body inlet pressure was higher than outlet pressure, and spherical valve core 4 floats, and the valve forward is opened; After water inlet stopped, when valve outlet pressure was close to or higher than the pressure of import, spherical valve core fell after rise at valve port by gravity, and the valve forward is closed.During water cut, the valve forward keeps closed condition in the inlet pipeline system; Spring 2 can be resisted the hydraulic pressure in the water heater, makes reciprocal pressure releasing valve core also keep closed condition.When static state adds hot water, water body expansion in the water heater, the hydraulic pressure that expands will overcome the resistance of spring, the value that is higher than inlet pressure when valve outlet pressure is during greater than spring force, will open reverse pressure release nonreturn valve core 3, the water body partial reflux that makes expansion has prevented from local improperly water clocks such as safety valves effectively to intake pipe.Pressure release rear valve body outlet pressure is near inlet pressure, and the pressure release nonreturn valve core is by the spring force return, and valve oppositely cuts out.Make the application of water heater convenient, safe and reliable like this.
Claims (4)
1, a kind of water heater bidirectional protective valve; have and bring mouthful valve body of outlet into; it is characterized in that: have two rightabout one-way valves between the valve body import export; one of them one-way valve is the water inlet one-way valve; another one-way valve is the pressure release one-way valve, is provided with the spring of hydrostatic in the opposing water tank between the spool of pressure release one-way valve and the valve body.
2, as the said water heater bidirectional protective of claim 1 valve; it is characterized in that: the nonreturn valve core that has a unidirectional valve seat in the valve body and match; nonreturn valve core has a rightabout check-valve port and another nonreturn valve core of matching, one of them nonreturn valve core be the pressure release nonreturn valve core and and valve body between the spring of resist the interior hydrostatic of water tank is being set.
3, as the said water heater bidirectional protective of claim 1 valve, it is characterized in that: the water inlet nonreturn valve core is the gravity spherical valve core that is arranged on the other direction check-valve port of pressure release nonreturn valve core.
4, as the said water heater bidirectional protective of claim 1 valve, it is characterized in that: spring is for being arranged on pressure spring between inboard jump ring of water intake and the pressure release nonreturn valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209752 CN2521458Y (en) | 2002-01-13 | 2002-01-13 | Double-directional protection valve for water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209752 CN2521458Y (en) | 2002-01-13 | 2002-01-13 | Double-directional protection valve for water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521458Y true CN2521458Y (en) | 2002-11-20 |
Family
ID=33690096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02209752 Expired - Fee Related CN2521458Y (en) | 2002-01-13 | 2002-01-13 | Double-directional protection valve for water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521458Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090425A (en) * | 2016-06-17 | 2016-11-09 | 广州凯亨阀门有限公司 | A kind of general valve protection device |
| CN107956905A (en) * | 2017-12-21 | 2018-04-24 | 重庆快联汽车零部件有限公司 | Two-way valve and automobile oil-way two-way valve |
-
2002
- 2002-01-13 CN CN 02209752 patent/CN2521458Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090425A (en) * | 2016-06-17 | 2016-11-09 | 广州凯亨阀门有限公司 | A kind of general valve protection device |
| CN107956905A (en) * | 2017-12-21 | 2018-04-24 | 重庆快联汽车零部件有限公司 | Two-way valve and automobile oil-way two-way valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2521458Y (en) | Double-directional protection valve for water heater | |
| CN101761675A (en) | Novel safety valve for water heater | |
| CN104976771B (en) | A kind of gas heater drainage antifreezing device | |
| CN201028083Y (en) | Safety water-saving valve | |
| CN209246413U (en) | A kind of water heater low temperature automatic drainage switch valve | |
| CN100587299C (en) | Leakage-proof valve | |
| CN216078430U (en) | Anti-freezing valve and water heater applying same | |
| CN206080202U (en) | Water route two -way valve of coffee machine | |
| CN203880919U (en) | Energy-saving plastic inner container water heater with safety device | |
| CN202017794U (en) | Solar anti-freezing electric ball valve | |
| CN207740512U (en) | The bottled safety pressure regulator of reverse closing type | |
| CN202303997U (en) | Sealing/opening switching controller for water tank of water heater | |
| CN218564512U (en) | Explosion-proof instant electric heating faucet | |
| CN2716751Y (en) | A water-saving anti-freezing solar water heater | |
| CN201180851Y (en) | Solar anti-freezing valve | |
| CN205606916U (en) | Water tank protector | |
| CN110848455A (en) | Solenoid valve convenient to use just has function of preventing frostbite | |
| CN215586431U (en) | Melting kettle heat-conducting oil circulating device with safety protection function | |
| CN214274575U (en) | Anti-freezing safety stop valve | |
| CN204240574U (en) | Closed and the convertible middle pressure-bearing electric heater of outlet open-type | |
| CN2627305Y (en) | Non-return flap valve | |
| CN207500705U (en) | A kind of frost-cracking-preventing drainage mechanism | |
| CN2420569Y (en) | Full automatic electric water heater | |
| CN208417629U (en) | A kind of electric hot water tap | |
| CN2539930Y (en) | Automatic air intake-discharge device suitable for water storage sealed electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |