CN2394156Y - Pressure limiting valve of electric water heater - Google Patents
Pressure limiting valve of electric water heater Download PDFInfo
- Publication number
- CN2394156Y CN2394156Y CN 99241923 CN99241923U CN2394156Y CN 2394156 Y CN2394156 Y CN 2394156Y CN 99241923 CN99241923 CN 99241923 CN 99241923 U CN99241923 U CN 99241923U CN 2394156 Y CN2394156 Y CN 2394156Y
- Authority
- CN
- China
- Prior art keywords
- pressure limiting
- pressure
- valve
- limiting valve
- spool
- 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
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- Heat-Pump Type And Storage Water Heaters (AREA)
- Safety Valves (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The utility model relates to a pressure limiting valve of an electric water heater, which comprises an integral outer shell which is composed of a valve cover and a valve body, a valve core which is positioned in the outer shell, and a pipe plug which is used for regulating the water pressure of yielding water. A rubber diaphragm and a stainless steel pressing sheet are fixed on the valve core. The periphery of the rubber diaphragm is fixed on the combination point of the valve cover and the valve body. The top end of the valve core faces to a water inlet point. The utility model also comprises a spring. One end of the spring acts on the pipe plug, and the other end of the spring acts on the stainless steel pressing sheet. The spring can play the rod of movement to the valve core following the water inlet pressure. The water pressure of yielding water can be led to be a setting value, and can not change following the change of the water inlet pressure. The utility model is suitable for a closed type electric water heater.
Description
The utility model relates to a kind of pressure limiting valve, relates to a kind of electric heater pressure limiting valve or rather.
Water-storage electric heater can be divided into open type and closed two kinds by its structure.Wherein open type electric water heater is owing to communicate with atmosphere all the time, thereby its reservoir does not bear water supply pressure, not only save the material of using of reservoir, and the requirement to its processing technology is also relatively low, but open type electric water heater can only be used to wash hot bath, can not be user's hot-water supply in many places simultaneously.Closed electrical water heater can be washed hot bath for the user, can allow the user use hot water simultaneously in many places again, but owing to bear hydraulic pressure, therefore to equipment having relatively high expectations with material and technology, when being 0.6Mpa as specified hydraulic pressure, then the water storage tank of whole electric heater, pipeline, interface and valve all need bear this hydraulic pressure, and rising and decline along with water temperature, to cause the variation of rising, contract of water storage tank tank wall etc., if the seam of the thickness low LCL of water storage tank tank wall or weld is not good, can cause that all the water storage tank casing damages, leaks etc.
According to the knowledge of the applicant, all be not provided with the hydraulic pressure pressure limiting valve in the electric heater of existing various types.
The purpose of this utility model is a kind of electric heater pressure limiting valve of design, can be installed in water inlet place of closed electrical water heater, no matter how high the water feeding pressure of pressure limiting valve have, and the water outlet hydraulic pressure of pressure limiting valve is restricted, thereby electric heater equipment can be worked under the hydraulic pressure of setting.
The purpose of this utility model is achieved in that a kind of electric heater pressure limiting valve, comprise valve gap, valve body, spool and pressure limiting valve plug, valve gap combines with valve body and constitutes monolithic case, it is characterized in that: described monolithic case is provided with water inlet, delivery port and hydraulic pressure and regulates mouth; Described pressure limiting valve plug is arranged on hydraulic pressure and regulates on the mouth; Described spool is arranged on the position of linking up water inlet and delivery port in the monolithic case, also be fixed with rubber diaphragm and stainless steel compressing tablet on the described spool, the periphery of rubber diaphragm is fixed on the junction of valve gap and valve body, and the top end face of spool is to described water inlet; Also include spring, spring one end acts on the pressure limiting valve plug, and the spring other end acts on the stainless steel compressing tablet of spool.
Described water inlet becomes 90 degree to be arranged on the described valve body with delivery port, described pressure is regulated mouth and is arranged on the described valve gap.
The corresponding screw thread that is provided with in junction that described pressure limiting valve plug and described monolithic case upward pressure are regulated mouthful.
Also be fixed with nut on the described spool, nut with described rubber diaphragm and stainless steel compressing tablet fixed order with the corresponding spool other end in described spool top on.
The electric heater pressure limiting valve, be arranged on the water inlet of electric heater, but the water outlet hydraulic pressure of volitional check pressure limiting valve, no matter how high water feeding pressure have, all water outlet hydraulic pressure can be limited under the hydraulic pressure of setting, can satisfy the requirement of multiple spot hot-water supply, the pressure that electric heater equipment can be born is reduced to the level that is similar to open type electric water heater again, i.e. hydraulic pressure during open type electric water heater shower nozzle water outlet.
Further specify technology of the present utility model below in conjunction with embodiment and accompanying drawing.
Fig. 1 is vertical sectional structure schematic diagram of the utility model electric heater pressure limiting valve
Referring to Fig. 1, the electric heater pressure limiting valve mainly comprises valve body 1, spool 2, several tapping screws 3, nut 4, plug 5, spring 6, stainless steel compressing tablet 7, valve gap 8 and rubber diaphragm 9,10 is water inlets of pressure limiting valve among the figure, the 11st, the delivery port of pressure limiting valve, the water that is flowed out by delivery port 11 enters in the water storage tank of electric heater.Valve gap 8 and valve body 1 are all made with engineering plastics.
When the water feeding pressure of water inlet 10 was lower than the voltage limiting value of setting, spring 6 held spool 2 downwards, made into that water can not be subjected to any resistance, and water flows out by communication place of valve body 1 inner chamber and water inlet and water outlet and from exporting 11.When the water feeding pressure of water inlet 10 is higher than the voltage limiting value of setting, spool 2 upwards compress under the hydraulic pressure effect spring 6 and on move, the top of spool 2 blocks communication place of water inlet and water outlet in the pressure limiting valve, and stops water outlet.When user's water, water outlet hydraulic pressure reduces, and spool 2 moves down under the effect that holds of spring 6, thereby replenishes water inlet, constant discharge pressure.
In sum, pressure limiting valve of the present utility model, by its water outlet hydraulic pressure is limited on the setting value, and the hydraulic pressure that water storage tank, pipeline, interface and the valve etc. that have used the closed electrical water heater behind the pressure limiting valve are born can not surpass setting value, can not increase, reduced of the requirement of closed electrical water heater reservoir with material and technology with the rising of water feeding pressure.
Claims (4)
1. an electric heater pressure limiting valve comprises valve gap, valve body, spool and pressure limiting valve plug, and valve gap combines with valve body and constitutes monolithic case, it is characterized in that: described monolithic case is provided with water inlet, delivery port and hydraulic pressure and regulates mouth; Described pressure limiting valve plug is arranged on hydraulic pressure and regulates on the mouth; Described spool is arranged on the position of linking up water inlet and delivery port in the monolithic case, also be fixed with rubber diaphragm and stainless steel compressing tablet on the described spool, the periphery of rubber diaphragm is fixed on the junction of valve gap and valve body, and the top end face of spool is to described water inlet; Also include spring, spring one end acts on the pressure limiting valve plug, and the spring other end acts on the stainless steel compressing tablet of spool.
2. electric heater pressure limiting valve according to claim 1 is characterized in that: described water inlet becomes 90 degree to be arranged on the described valve body with delivery port, described pressure is regulated mouth and is arranged on the described valve gap.
3. electric heater pressure limiting valve according to claim 1 is characterized in that: the corresponding screw thread that is provided with in junction that described pressure limiting valve plug and described monolithic case upward pressure are regulated mouthful.
4. electric heater pressure limiting valve according to claim 1 is characterized in that: also be fixed with nut on the described spool, nut with described rubber diaphragm and stainless steel compressing tablet fixed order with the corresponding spool other end in described spool top on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241923 CN2394156Y (en) | 1999-08-19 | 1999-08-19 | Pressure limiting valve of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241923 CN2394156Y (en) | 1999-08-19 | 1999-08-19 | Pressure limiting valve of electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394156Y true CN2394156Y (en) | 2000-08-30 |
Family
ID=34028693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241923 Expired - Fee Related CN2394156Y (en) | 1999-08-19 | 1999-08-19 | Pressure limiting valve of electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916504A (en) * | 2019-12-09 | 2020-03-27 | 温州咖邑贸易有限公司 | A water dispenser for office space antidrip |
-
1999
- 1999-08-19 CN CN 99241923 patent/CN2394156Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916504A (en) * | 2019-12-09 | 2020-03-27 | 温州咖邑贸易有限公司 | A water dispenser for office space antidrip |
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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 |