CN2823870Y - Freeze-proof structure of connecting branch pipe for use in hot water pipe network - Google Patents
Freeze-proof structure of connecting branch pipe for use in hot water pipe network Download PDFInfo
- Publication number
- CN2823870Y CN2823870Y CN 200520200590 CN200520200590U CN2823870Y CN 2823870 Y CN2823870 Y CN 2823870Y CN 200520200590 CN200520200590 CN 200520200590 CN 200520200590 U CN200520200590 U CN 200520200590U CN 2823870 Y CN2823870 Y CN 2823870Y
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- CN
- China
- Prior art keywords
- connecting branch
- pipe
- hot water
- main
- branch pipe
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- 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 discloses a freeze-proof structure of a connecting branch pipe in a hot water pipe network. A connecting branch pipe is arranged on a main pipe, and a gas purge valve and a water escape valve are respectively arranged on the connecting branch pipe; upper main pipes which are connected with the gas purge valve and the water escape valve are respectively connected with a circulation pipe, and the circulation pipe is communicated with the connecting branch pipe of the gas purge valve and the water escape valve; the end of the circulation pipe which penetrates into the main pipe forms a circular arc shape in the centre of the main pipe, and the end port faces the water flow direction; the junction of the circulation pipe and the connecting branch pipe is near the gas purge valve and the water escape valve. The utility model can effectively prevent the connecting branch pipe from being frozen and ensure the normal running of a hot water pipe network.
Description
Technical field:
The utility model relates to heating equipment, particularly relates to a kind of anti-freezing structure of connecting branch.
Background technology:
In the hot water pipe net of heating, need vent valve be set at the peak of pipeline, minimum point at pipeline is provided with drain valve, connecting the interior hot water of arm of vent valve and drain valve, is static when pipe network normally moves, and As time goes on the hot water temperature will reduce gradually, even pipeline is added with heat-insulation layer outward, when outdoor temperature was low, it is following and freeze that the hot water in the arm also can be reduced to zero centigrade, arm meeting bursting by freezing when serious and influence the operation of whole pipe network.Freeze for preventing, also taked certain measure, for example under the situation that does not influence installation, make the length of arm short as far as possible, add thick insulation layer or the like; But the situation of arm bursting by freezing still happens occasionally.
Summary of the invention:
The purpose of this utility model is: a kind of new anti-freezing structure is provided, can effectively prevents freezing of connecting branch, guarantee the normal operation of hot water pipe net.
The utility model is to constitute like this: it comprises main (1), connecting branch (3) is arranged on main (1), vent valve (4) and drain valve (5) are installed respectively on connecting branch (3), be connected circulation pipe (2) respectively on the upstream main (1) that connects vent valve (4) and drain valve (5), circulation pipe (2) communicates with the connecting branch (3) of vent valve (4), drain valve (5).
In above structure, circulation pipe (2) is embedded in the inner termination of main (1) and is circular arc, and the position is at the tube hub of main (1), and port is met to water (flow) direction; Circulation pipe (2) and close vent valve (4) in the junction of connecting branch (3) and drain valve (5).
Because fluid is along in the flow process of pipeline, fluid and tube wall can produce friction, and the rate of flow of fluid of pipeline center is greater than tube wall place rate of flow of fluid.Circulation pipe (2) is got the hot water of the low discharge of a high flow velocities at the tube hub of main (1), by connecting the connecting branch (3) of vent valve (4) and drain valve (5), confession, backwater main (1) are flowed back in circulation, make the hot water in the connecting branch (3) that connects vent valve (4) and drain valve (5) keep continuous-flow, connecting branch (3) just can not freeze like this.
The beneficial effects of the utility model are: can effectively prevent freezing of connecting branch, guarantee the normal operation of hot water pipe net.
Description of drawings:
Fig. 1 is a schematic diagram of the present utility model;
The specific embodiment:
Embodiment of the present utility model: as shown in Figure 1, at first, make circulation pipe 2 parts such as grade, an end that requires circulation pipe 2 to be embedded in main 1 inside is made into circular arc; Secondly perforate on the tube wall of main 1 and connecting branch 3, the position of opening on connecting branch 3 are as far as possible near vent valve 4 and drain valve 5; At last, the arc end of circulation pipe 2 is placed the tube hub of confession, backwater main 1, and port is met to water (flow) direction, the other end places the place, aperture of connecting branch 3, is welded to connect, and requires firm welding, good airproof performance.
Claims (3)
1. the anti-freezing structure of connecting branch in the hot water pipe net, it comprises main (1), it is characterized in that: connecting branch (3) is arranged on main (1), vent valve (4) and drain valve (5) are installed respectively on connecting branch (3), be connected circulation pipe (2) respectively on the upstream main (1) that connects vent valve (4) and drain valve (5), circulation pipe (2) communicates with the connecting branch (3) of vent valve (4), drain valve (5).
2. the anti-freezing structure of connecting branch in the hot water pipe net according to claim 1 is characterized in that: circulation pipe (2) is embedded in the inner termination of main (1) and is circular arc, and the position is at the tube hub of main (1), and port is met to water (flow) direction.
3. the anti-freezing structure of connecting branch in the hot water pipe net according to claim 1 is characterized in that: circulation pipe (2) and close vent valve (4) in the junction of connecting branch (3) and drain valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200590 CN2823870Y (en) | 2005-08-16 | 2005-08-16 | Freeze-proof structure of connecting branch pipe for use in hot water pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200590 CN2823870Y (en) | 2005-08-16 | 2005-08-16 | Freeze-proof structure of connecting branch pipe for use in hot water pipe network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2823870Y true CN2823870Y (en) | 2006-10-04 |
Family
ID=37032986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200590 Expired - Fee Related CN2823870Y (en) | 2005-08-16 | 2005-08-16 | Freeze-proof structure of connecting branch pipe for use in hot water pipe network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2823870Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353043A (en) * | 2013-07-24 | 2013-10-16 | 中煤第五建设有限公司 | Antifreezing device of heating line drain valve |
-
2005
- 2005-08-16 CN CN 200520200590 patent/CN2823870Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353043A (en) * | 2013-07-24 | 2013-10-16 | 中煤第五建设有限公司 | Antifreezing device of heating line drain valve |
| CN103353043B (en) * | 2013-07-24 | 2015-11-25 | 中煤第五建设有限公司 | Heat supply pipeline drain valve anti-icer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER NAME: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
|
| CP03 | Change of name, title or address |
Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20130816 |