CN2402944Y - Expansion water tank - Google Patents
Expansion water tank Download PDFInfo
- Publication number
- CN2402944Y CN2402944Y CN 99241138 CN99241138U CN2402944Y CN 2402944 Y CN2402944 Y CN 2402944Y CN 99241138 CN99241138 CN 99241138 CN 99241138 U CN99241138 U CN 99241138U CN 2402944 Y CN2402944 Y CN 2402944Y
- Authority
- CN
- China
- Prior art keywords
- water
- rubber membrane
- utility
- model
- shell cover
- 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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Abstract
The utility model provides an expansion water tank. The utility model comprises a tank body which is composed of an upper shell cover connected with an air valve, and a lower shell cover connected with a pipe joint. A rubber membrane is arranged between an upper and a lower shells, and the upper and the lower shell covers and the rubber membrane are fastened together by a yoke. The tank body is divided into two cavities by the rubber membrane, an air cavity is composed of the upper shell cover and the rubber membrane, and a water cavity is composed of the lower shell cover and the rubber membrane. When the utility model is used, the utility model is connected to a water pipe passage of a hot water boiler, and is used for controlling the water pressure equilibrium of the water pipe passage and the variation of compensation water volume. The utility model is mainly used for the hot water boiler.
Description
The utility model relates to a kind of hot-water boiler auxiliary device, particularly relates to a kind of expansion tank.
The expansion tank that existing hot-water boiler adopts is mainly by spill box, overflow pipe, and gravity level pressure water pipe is formed.It is loosely organized, and spill box needs certain altitude, and water tank has water excessive, is difficult for administering and maintaining.
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of compact conformation is provided, and volume is little, and is easy for installation, reliable expansion tank.
The utility model expansion tank is achieved in that it comprises the casing of being made up of upper shell cover that is connected with air valve and the lower cover that is connected with pipe joint, is provided with rubber membrane between the upper and lower shell, by clip upper and lower cap and rubber membrane is tightened together.Wherein, protruding circular arc is advisable beyond the upper and lower cap.Rubber membrane is divided into two chambeies with casing, and upper shell cover and rubber membrane are formed air cavity, and the air valve on the upper shell cover is used to fill, exhaust.Lower cover and rubber membrane are formed water cavity, and the pipe joint on the lower cover is used to connect the water lines of hot-water boiler.
The operation principle of the utility model expansion tank is that in hot water boiler system, the pipe joint of expansion tank is other to be connected on the water lines of hot-water boiler, and charges into the inert gas of rated pressure in advance.During operation, the water temperature in the water pipe changes with ectocine.When water temperature raises, volumetric expansion, pressure raises, and during specified air pressure in system's hydraulic pressure is higher than the expansion tank air cavity, the water that is expanded is pressed in the water cavity of expansion tank, and pipeline has ensured the safety of pipeline equipment because of the pressure that expansion increases is released; When the water temperature in the water pipe reduced, when the pressure of pipeline was lower than the rated pressure scope, inert gas expanded in the expansion tank air cavity, the rubber membrane expansion, and the water in the water cavity is pressed in the water lines, the interior hydraulic pressure of water pipe is raise, thereby ensure the water circuit system normal circulation.
The advantage of the utility model expansion tank is that rubber membrane is separated into air cavity and water cavity with expansion tank, utilize the elasticity of rubber membrane and the compressibility of inert gas, the water capacity that compensates water circuit system on the one hand changes, keep the hydraulic pressure of the constant scope in backwater road on the other hand, water capacity compensation that the conventional expanded water tank is disperseed and pressure are kept structure and are integrated, and make its volume little, simple in structure, easy for installation, reliable.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model structural representation
The utility model expansion tank comprises the casing of being made up of upper shell cover 1 and lower cover 7, be connected with air valve 5 on the upper shell 1, be connected with pipe joint 3 on the lower house, be provided with rubber membrane 6 between upper shell 1 and the lower house 7, clip 4 tightens together upper shell 1, lower cover 7 and rubber membrane 6.Form air cavity 2 between upper shell 1 and the rubber membrane 6, form water cavity 8 between lower house 7 and the rubber membrane 6.
Claims (2)
1, a kind of expansion tank comprises casing, it is characterized in that casing is made up of upper shell cover that is connected with air valve and the lower cover that is connected with pipe joint, is provided with rubber membrane between the upper and lower shell, by clip upper and lower cap and rubber membrane is tightened together.
2, expansion tank as claimed in claim 1 is characterized in that upper and lower cap is the circular arc of evagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241138 CN2402944Y (en) | 1999-09-17 | 1999-09-17 | Expansion water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241138 CN2402944Y (en) | 1999-09-17 | 1999-09-17 | Expansion water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402944Y true CN2402944Y (en) | 2000-10-25 |
Family
ID=34028053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241138 Expired - Fee Related CN2402944Y (en) | 1999-09-17 | 1999-09-17 | Expansion water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402944Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430655C (en) * | 2003-07-22 | 2008-11-05 | 弗莱克斯康工业公司 | Expansion tank with double diaphragm |
| CN101243289B (en) * | 2005-08-17 | 2010-06-09 | 巴斯夫欧洲公司 | Lightweight expansion vessels |
| CN101570175B (en) * | 2009-06-09 | 2011-02-09 | 石代成 | Fabricated water tank of automotive spraying device |
| CN101614447B (en) * | 2008-06-24 | 2012-10-10 | 山东省北斗制冷设备有限公司 | Medium-addition-free type gasbag respirator for low-voltage heat exchange system |
| CN104379983A (en) * | 2013-06-07 | 2015-02-25 | 齐利奥工业有限责任公司 | Pre-charged expansion tank |
| CN106812593A (en) * | 2016-12-29 | 2017-06-09 | 比亚迪股份有限公司 | Expansion tank |
-
1999
- 1999-09-17 CN CN 99241138 patent/CN2402944Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430655C (en) * | 2003-07-22 | 2008-11-05 | 弗莱克斯康工业公司 | Expansion tank with double diaphragm |
| CN101243289B (en) * | 2005-08-17 | 2010-06-09 | 巴斯夫欧洲公司 | Lightweight expansion vessels |
| CN101614447B (en) * | 2008-06-24 | 2012-10-10 | 山东省北斗制冷设备有限公司 | Medium-addition-free type gasbag respirator for low-voltage heat exchange system |
| CN101570175B (en) * | 2009-06-09 | 2011-02-09 | 石代成 | Fabricated water tank of automotive spraying device |
| CN104379983A (en) * | 2013-06-07 | 2015-02-25 | 齐利奥工业有限责任公司 | Pre-charged expansion tank |
| CN106812593A (en) * | 2016-12-29 | 2017-06-09 | 比亚迪股份有限公司 | Expansion tank |
| CN106812593B (en) * | 2016-12-29 | 2017-12-12 | 比亚迪股份有限公司 | Expansion tank |
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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 |