CN103353043A - Antifreezing device of heating line drain valve - Google Patents
Antifreezing device of heating line drain valve Download PDFInfo
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- CN103353043A CN103353043A CN2013103149189A CN201310314918A CN103353043A CN 103353043 A CN103353043 A CN 103353043A CN 2013103149189 A CN2013103149189 A CN 2013103149189A CN 201310314918 A CN201310314918 A CN 201310314918A CN 103353043 A CN103353043 A CN 103353043A
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- pipe
- drain
- water
- drain valve
- drain pipe
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Abstract
The invention discloses an antifreezing device of a heating line drain valve, and belongs to the technical field of heating lines. The antifreezing device is used for the construction of an outdoor heating pipe network, and comprises a water drain pipe a, a water drain pipe b and a connecting hose, the water drain pipe a is arranged at the local low point of a water supply pipe and is communicated with the water supply pipe, the water drain pipe b is arranged at the local low point of a water return pipe and is communicated with the water return pipe, the connecting hose is communicated with the water drain pipe a and the water drain pipe b, a drain valve A is arranged between the connecting hose and the water drain pipe a, and a drain valve B is arranged between the connecting hose and the water drain pipe b. When the antifreezing device is used, the drain valve A and the drain valve B are simultaneously opened, the opening degree of the drain valve A is a little larger than that of the drain valve B, water flow is made to slowly flow to the water supply pipe from the water return pipe through the drain valves and the connecting hose, and therefore the aim of preventing the heating line drain valve from being frozen off is achieved. The antifreezing device solves the problem that a traditional heating line drain valve is frequently frozen off, maintenance cost is reduced, operating cost is reduced, and the reliability of a heating supply system is improved.
Description
Technical field
The present invention relates to the heat supply pipeline technical field, is a kind of heat supply pipeline drain valve anti-icer.Be used for the prevention of the frost heaving failure of heat supply pipeline drain valve under outdoor cold climate condition.
Background technique
Conventional construction method: directly at heat supply pipeline local low point welding drain pipe, drain pipe is connected with flange with drain valve, simply does some Insulations on drain pipe.There is following drawback in said method:
1, the water in drain pipe and the emptying valve is vertical with the water (flow) direction of heat supply pipeline, hardly circulation in water in drain pipe and the emptying valve and the heat supply pipeline, cause the water in drain pipe and the emptying valve almost to become " stagnant water ", drain pipe is the position more on the lower, " stagnant water " phenomenon is more serious, and valve is in the most serious position of stagnant water phenomenon, also is the faintest position of heat supply pipeline heat affecting, in the very long motivation of cold, be easy to frost heaving failure.
2, emptying valve complex structure is implemented the insulation difficulty, is the weak spot of insulation.Generally, the Insulation at valve place does not all have good heat insulation effect, easily makes the emptying valve frost heaving failure.Experience in the past, drain valve can only be used one usually for heat cycle, try the water the stage before arriving in the next heat supply phase, can find that there is water leakage phenomenon in various degree in most emptying valves, are exactly that valve is in the winter time by the clear proof of frost heaving failure.
Summary of the invention
For existing practical problem in above-mentioned, the invention provides a kind of heat supply pipeline drain valve anti-icer, it can improve emptying valve working life, reduces the maintenance on heating systems cost, improves the reliability of heating system.
The present invention realizes with following technological scheme: a kind of heat supply pipeline drain valve anti-icer, comprise the drain pipe a that is positioned at the water pipe local low point and communicates with water pipe, the drain pipe b that is positioned at the return pipe local low point and communicates with return pipe, drain pipe a and drain pipe b connect by the connecting hose of length greater than distance between drain pipe a and the drain pipe b, between described connecting hose and drain pipe a, be provided with drain valve A, between connecting hose and drain pipe b, be provided with drain valve B.
It further is: described connecting hose is that two ends are with the metal connecting hose of Steel Sleeve.
At the end of described drain pipe a, the end of drain pipe b, the two ends of connecting hose are welded with flange, and drain valve A is connected flange with drain valve B and connects.
Described drain pipe a is fixed on the water pipe with welding manner, and drain pipe b is fixed on the return pipe with welding manner.
During use, open simultaneously drain valve a and drain valve b(drain valve a leaves larger than drain valve b), make current slowly flow to water return pipeline by drain valve, connecting hose from water supply line, thereby reach prevent the heat supply pipeline drain valve freezing purpose.
The invention has the beneficial effects as follows: both satisfied heat supply pipeline sluicing needs (when needs sluice, emptying valve is all tightened, unloading connecting hose can sluice) solved again the maintenance of traditional drain valve frequent, waste time and energy, and in system's running the defective of the large poor effect of maintenance difficulty.Compare with traditional " unshielded " emptying valve method of construction, have the life-span that prolongs emptying valve, save maintenance cost, cut operating costs, improve the characteristics of the reliability of heating system.
Description of drawings
Fig. 1 is structural representation of the present invention;
Among the figure: 1, drain pipe a; 2, drain pipe b; 3, drain valve A; 4, drain valve B; 5, connecting hose; 6, flange; 7, water pipe; 8, return pipe.
Embodiment
Below be a specific embodiment of the present invention, and be described further by reference to the accompanying drawings.
As shown in Figure 1, heat supply pipeline drain valve anti-icer comprises the drain pipe a1 that is welded in water pipe 7 local low point and communicates with water pipe 7, the drain pipe b2 that is welded in return pipe 8 local low point and communicates with return pipe 8 is in the situation that execution conditions permission drain pipe a1 and drain pipe b2 are more short better.Drain pipe a1 and drain pipe b2 are communicated with by the connecting hose 5 of length greater than distance between drain pipe a1 and the drain pipe b2, and this connecting hose 5 is that two ends are with the metal connecting hose of Steel Sleeve.Between described connecting hose 5 and drain pipe a1, be provided with drain valve A3, between connecting hose 5 and drain pipe b2, be provided with drain valve B4.
At the end of drain pipe a1, the end of drain pipe b2, the two ends of connecting hose 5 are welded with flange 6, and drain valve A3 is connected flange 6 with drain valve B4 and connects.
Claims (4)
1. heat supply pipeline drain valve anti-icer, it is characterized in that: comprise the drain pipe a(1 that is positioned at water pipe (7) low spot and communicates with water pipe (7)), the drain pipe b(2 that is positioned at return pipe (8) low spot and communicates with return pipe (8)), drain pipe a(1) and drain pipe b(2) by length greater than drain pipe a(1) and drain pipe b(2) between the connecting hose (5) of distance connect, at described connecting hose (5) and drain pipe a(1) between be provided with drain valve A(3), at connecting hose (5) and drain pipe b(2) between be provided with drain valve B(4).
2. a kind of heat supply pipeline drain valve anti-icer according to claim 1, it is characterized in that: described connecting hose (5) is that two ends are with the metal connecting hose of Steel Sleeve.
3. a kind of heat supply pipeline drain valve anti-icer according to claim 1 and 2, it is characterized in that: at described drain pipe a(1) an end, drain pipe b(2) an end and the two ends of connecting hose (5) respectively be welded with flange (6), drain valve A(3) be connected with drain valve B(4 and connect by flange (6).
4. a kind of heat supply pipeline drain valve anti-icer according to claim 1 is characterized in that: described drain pipe a(1) be fixed on the water pipe (7) drain pipe b(2 with welding manner) be fixed on the return pipe (8) with welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310314918.9A CN103353043B (en) | 2013-07-24 | 2013-07-24 | Heat supply pipeline drain valve anti-icer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310314918.9A CN103353043B (en) | 2013-07-24 | 2013-07-24 | Heat supply pipeline drain valve anti-icer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103353043A true CN103353043A (en) | 2013-10-16 |
| CN103353043B CN103353043B (en) | 2015-11-25 |
Family
ID=49309440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310314918.9A Expired - Fee Related CN103353043B (en) | 2013-07-24 | 2013-07-24 | Heat supply pipeline drain valve anti-icer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103353043B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016896A (en) * | 1974-11-08 | 1977-04-12 | Eino Heikki Oikarinen | Device for the de-airing of a liquid system, preferably a system for hydraulic brakes |
| US4246926A (en) * | 1979-04-25 | 1981-01-27 | Morello Salvatore T | Apparatus for removing residual water from a water system |
| CN2245758Y (en) * | 1995-06-28 | 1997-01-22 | 郑守峰 | Water supply heat exchanging air heat exchanger |
| CN2823870Y (en) * | 2005-08-16 | 2006-10-04 | 贵阳铝镁设计研究院 | Freeze-proof structure of connecting branch pipe for use in hot water pipe network |
| CN202956673U (en) * | 2012-11-14 | 2013-05-29 | 成都卓程科技有限公司 | Automatic control system based on liquid level of single water tank |
-
2013
- 2013-07-24 CN CN201310314918.9A patent/CN103353043B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016896A (en) * | 1974-11-08 | 1977-04-12 | Eino Heikki Oikarinen | Device for the de-airing of a liquid system, preferably a system for hydraulic brakes |
| US4246926A (en) * | 1979-04-25 | 1981-01-27 | Morello Salvatore T | Apparatus for removing residual water from a water system |
| CN2245758Y (en) * | 1995-06-28 | 1997-01-22 | 郑守峰 | Water supply heat exchanging air heat exchanger |
| CN2823870Y (en) * | 2005-08-16 | 2006-10-04 | 贵阳铝镁设计研究院 | Freeze-proof structure of connecting branch pipe for use in hot water pipe network |
| CN202956673U (en) * | 2012-11-14 | 2013-05-29 | 成都卓程科技有限公司 | Automatic control system based on liquid level of single water tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103353043B (en) | 2015-11-25 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20180724 |