CN203743478U - Ball valve for electric water heater - Google Patents
Ball valve for electric water heater Download PDFInfo
- Publication number
- CN203743478U CN203743478U CN201320880955.1U CN201320880955U CN203743478U CN 203743478 U CN203743478 U CN 203743478U CN 201320880955 U CN201320880955 U CN 201320880955U CN 203743478 U CN203743478 U CN 203743478U
- Authority
- CN
- China
- Prior art keywords
- valve
- water heater
- ball valve
- electric water
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a ball valve for an electric water heater. The ball valve comprises a valve body, a valve seat, a valve element, a valve rod and a connector. A small hole is formed in the lower portion of a slot of the valve element and is communicated with a valve element hole and a valve body cavity. The ball valve has the advantages of being small in opening and closing torque, high in reliability and long in service life.
Description
Technical field
The utility model relates to a kind of ball valve, especially a kind of electric water heater ball valve.
Background technique
Electric water heater use ball valve is without balance aperture on spool at present, and at ordinary times in complete shut-down state, general three months switches once, are used as electric water heater blowdown.Between body cavity and medium, be spaced from each other, in the time that the valve closing time is longer, just likely cause medium temperature in body cavity to raise, medium changes into gaseous state by liquid state, and pressure sharply increases.Be example taking water as medium, if when in body cavity, surplus water is 100%, temperature rises to 70 DEG C by 0 DEG C, pressure appreciates and just can reach 50MPa.If this phenomenon occurs, the high pressure on body cavity can wash out the seal ring on valve rod, also may cause the accidents such as valve seat or valve body break.Simultaneously spool can be because of pressure by consumingly by the bottom that is pressed in valve seat, so just need large operation torque in order to rotate ball valve.In the occasion that uses electric actuator operation, because the size of electric operating torque has certain limit, so there is sometimes the situation that spool can not rotate.And due to spool by consumingly by the bottom that is pressed in valve seat, on valve seat, not only produce strong wearing and tearing, but also can produce breakage.
Summary of the invention
The purpose of this utility model is to provide the electric water heater ball valve that a kind of switch torque is little, product reliability is high, the life-span is long.
For achieving the above object, the utility model is realized by following technical solution: electric water heater ball valve, comprise valve body, valve seat, spool, valve rod and joint, and have aperture in the bottom at spool fluting place, aperture communicates with spool bore and valve body body cavity.
Described electric water heater ball valve, the cross section of its aperture is round, or side or leg-of-mutton.
The utility model compared with prior art tool has the following advantages: (one) is owing to having aperture in the bottom at spool fluting place, having realized body cavity is communicated with medium, can prevent the expansion of body cavity inner fluid, thereby prevent the infringement to O type circle causes on valve seat and valve rod; (2) be to realize while closing being communicated with of body cavity and spool bore and valve space part, prevent abnormal pressure rising, while opening, realize being communicated with of body intracavity liquid and medium, realize pressure balance, there is the advantages such as switch torque is little, product reliability is high, the life-span is long.
Brief description of the drawings
Fig. 1 is the utility model electric water heater ball valve structural representation while closing.
Fig. 2 is the utility model electric water heater structural representation while opening with ball valve.
Fig. 3 is the main sectional structure schematic diagram of the utility model electric water heater ball valve core.
Fig. 4 is the side sectional structure schematic diagram of the utility model electric water heater ball valve core.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment 1: as shown in Figures 1 to 4, electric water heater ball valve, comprises valve body 1, valve seat 2, spool 3, valve rod 4 and joint 5, has aperture 7 in the bottom at spool 3 fluting places 6, and aperture 7 communicates with spool bore 8 and valve body body cavity 9, and the cross section of aperture 7 is round.
Embodiment 2: the cross section side of being of aperture 7 or leg-of-mutton, all the other are with embodiment 1.
Claims (2)
1. an electric water heater ball valve, comprise valve body (1), valve seat (2), spool (3), valve rod (4) and joint (5), it is characterized in that: have aperture (7) in the bottom at spool (3) fluting place (6), aperture (7) communicates with spool bore (8) and valve body body cavity (9).
2. electric water heater ball valve according to claim 1, is characterized in that: the cross section of aperture (7) is round, or side or leg-of-mutton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880955.1U CN203743478U (en) | 2013-12-30 | 2013-12-30 | Ball valve for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880955.1U CN203743478U (en) | 2013-12-30 | 2013-12-30 | Ball valve for electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743478U true CN203743478U (en) | 2014-07-30 |
Family
ID=51343279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880955.1U Expired - Lifetime CN203743478U (en) | 2013-12-30 | 2013-12-30 | Ball valve for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220214077A1 (en) * | 2017-07-21 | 2022-07-07 | Rheem Manufacturing Company | Water heater inlet fitting, flow sensor, shut off valve and diffuser |
-
2013
- 2013-12-30 CN CN201320880955.1U patent/CN203743478U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220214077A1 (en) * | 2017-07-21 | 2022-07-07 | Rheem Manufacturing Company | Water heater inlet fitting, flow sensor, shut off valve and diffuser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203743478U (en) | Ball valve for electric water heater | |
| CN204348645U (en) | A kind of insulated tension pole mucilage binding and joint thereof | |
| CN103353000A (en) | Safety valve on hydraulic pipe | |
| CN203562358U (en) | Button and push rod combination structure of emergency stop switch | |
| CN203690235U (en) | Fuse cylinder with double fuse tubes | |
| CN204327701U (en) | Hydroelectric power plant's rotor coupling shaft bolt structure | |
| CN202721270U (en) | Cable jacket assembly | |
| CN204941452U (en) | A kind of hammering oil discharger | |
| CN109282915A (en) | A kind of heating water tank inside temperature measuring equipment | |
| CN203363314U (en) | Safety valve on hydraulic pipe | |
| CN104534208B (en) | Insulating joint | |
| CN204140494U (en) | A kind of frost crack prevention water pump and air-source water heater | |
| CN106763770B (en) | A kind of high temperature resistant boiler shell through hole sealing device | |
| CN103244723B (en) | Mining explosion-proof check valve | |
| CN104595267B (en) | Implanted direct relief valve | |
| CN204127378U (en) | Floating valve seat | |
| CN203272909U (en) | Explosive-proof type mining one-way valve | |
| CN103307346B (en) | The Effector of valve | |
| CN207629350U (en) | A kind of furnace tool excessively of implantation titanium sheet | |
| CN201851724U (en) | Safety valve sealing structure | |
| CN104728458A (en) | Valve shaft collection device | |
| CN106641256B (en) | A kind of high pressure resistant boiler shell through hole sealing device | |
| CN207245980U (en) | A kind of Pump Failure switch | |
| CN202418885U (en) | Automatic composite sealing member for valve stems | |
| CN203309265U (en) | Air pressure meter and valve body connecting structure for load switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200414 Address after: 311800 No.18 Sanfeng Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG HAOLU THERMAL ENERGY TECHNOLOGY Co.,Ltd. Address before: 311835, Jiefang Road, Zhejiang, Shaoxing province Zhuji Town Industrial Zone No. 698 Patentee before: ZHEJIANG AIMOYING PARTS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |