CN201561577U - Anti-frost valve of heat exchanger used on gas water heater - Google Patents
Anti-frost valve of heat exchanger used on gas water heater Download PDFInfo
- Publication number
- CN201561577U CN201561577U CN2009202640736U CN200920264073U CN201561577U CN 201561577 U CN201561577 U CN 201561577U CN 2009202640736 U CN2009202640736 U CN 2009202640736U CN 200920264073 U CN200920264073 U CN 200920264073U CN 201561577 U CN201561577 U CN 201561577U
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- heat exchanger
- relief tube
- water pipe
- piston
- seal cover
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Abstract
An anti-frost valve of a heat exchanger used on a gas water heater has the main technical characteristics that the anti-frost valve comprises a sealing cover, a pressure relief pipe, a spring, a piston, a seal ring and a connection water pipe, wherein the piston is provided with a sealing groove and a guide rod; the sealing groove in the piston is sheathed with the seal ring; the piston is installed inside the pressure relief pipe and sealed with the inner side of a water inlet formed at the front end of the pressure relief pipe; a sealing cover through-hole is formed in the sealing cover; the sealing cover is connected with the tail end of the pressure relief pipe, and the guide rod penetrates out of the sealing cover through-hole formed in the sealing cover; the guide rod is sheathed with the spring; a water pipe connection hole is formed at the water inlet of the pressure relief pipe; and one end of the connection water pipe is communicated with the water inlet of the pressure relief pipe through the water pipe connection hole, and the other end of the connection water pipe is communicated with a heat exchange pipe in the heat exchanger. The anti-frost valve has the characteristics that freezing resistance can be achieved effectively under power failure without consuming energy, automation degree is high, and the structure is convenient to process, etc.
Description
Technical field: the utility model relates to the frost valve of a kind of gas heater with heat exchanger, and it is applicable in the gas heaters such as chimney flue type gas heater, balanced type gas heater, forced exhaust formula gas heater, pressure supply and exhaust formula gas heater.
Background technology: existing gas heater; when preventing that environment temperature is low in the gas heater water pipe in the heat exchanger because of the water freezing spalling in managing; usually adopt following three kinds of antifreeze modes: electrical heating antifreezing; the combustion gas heating and anti-freezing; the draining of manual drainage valve; preceding two kinds of antifreeze modes must civil power could operate as normal; need simultaneously constantly to heat; and consume a large amount of energy; electrical heating antifreezing and combustion gas heating and anti-freezing all can't be worked under situation about having a power failure; the draining of manual drainage valve needs user's manual operations draining valve to discharge water; the user usually can forget and discharges water in actual the use; and cause the gas heater inner water tube by bursting by freezing; cause and exist defroster to waste energy; can't be normally antifreeze under the power failure situation, defective such as automaticity is lower.For overcoming these defectives, gas heater is developed with the frost valve of heat exchanger.
Summary of the invention: technical problem to be solved in the utility model is that the frost valve of a kind of gas heater with heat exchanger will be provided, and it does not need consumes energy, can be antifreeze effectively under the power failure situation, and the convenient processing of automaticity height and structure.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises seal cover, relief tube, spring, piston, sealing ring, connect water pipe, described piston is provided with seal groove and guide post, sealing ring is enclosed within on the seal groove in the piston, piston be installed in the relief tube and with the water inlet inner seal of relief tube front end, be provided with the seal cover through hole in the seal cover, seal cover is connected with the end of relief tube and guide post passes seal cover through hole in the seal cover, spring housing is on guide post, the water inlet of relief tube is provided with the water pipe connecting hole, connect water pipe one end and be communicated with the water inlet of relief tube by the water pipe connecting hole, the other end of connection water pipe is communicated with the heat exchanger tube in the heat exchanger.
Described seal cover is a clamp nut, and seal cover is connected with the end thread of relief tube.
Described sealing ring is the O RunddichtringO.
Described water pipe connecting hole is arranged on the end face of water inlet in the relief tube.
Described water pipe connecting hole is arranged on the side tube wall of water inlet in the relief tube.
Described relief tube front end is provided with step, connects water pipe and is communicated with relief tube by step.
The utility model is compared the beneficial effect that is produced with background technology:
1, because the utility model adopts seal cover, relief tube, spring, piston, sealing ring, connect water pipe, described piston is provided with seal groove and guide post, sealing ring is enclosed within on the seal groove in the piston, piston be installed in the relief tube and with the water inlet inner seal of relief tube front end, be provided with the seal cover through hole in the seal cover, seal cover is connected with the end of relief tube and guide post passes seal cover through hole in the seal cover, spring housing is on guide post, the water inlet of relief tube is provided with the water pipe connecting hole, connecting water pipe one end is communicated with the water inlet of relief tube by the water pipe connecting hole, the structure that the other end of connection water pipe is communicated with the heat exchanger tube in the heat exchanger, so it does not need consumes energy, can be antifreeze effectively under the power failure situation, the convenient processing of automaticity height and structure.
Description of drawings: Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of relief tube 2 among Fig. 1.
Fig. 3 is an another kind of structural representation of the present utility model.
Fig. 4 is the structural representation of relief tube 2 among Fig. 3.
The specific embodiment: shown in accompanying drawing 1, accompanying drawing 3, present embodiment comprises seal cover 1, relief tube 2, spring 3, piston 4, sealing ring 5, connects water pipe 10, heat exchanger tube 12, piston 4 is provided with seal groove 6 and guide post 7, sealing ring 5 is for the O RunddichtringO and be enclosed within on the seal groove 6 in the piston 4, and piston 4 is installed in the relief tube 2 and by water inlet 8 inner seals of sealing ring 5 with relief tube 2 front ends.Be provided with seal cover through hole 9 in the seal cover 1, seal cover 1 is connected with the end of relief tube 2 and guide post 7 passes seal cover through hole 9 in the seal cover 1, and seal cover 1 is a clamp nut in the present embodiment, and seal cover 1 is connected with the end thread of relief tube 2.Spring 3 is enclosed within on the guide post 7 and is installed in the relief tube 2, spring 3 two ends respectively with the interior side contacts of piston 4 and seal cover 1, relief tube 2 front ends are provided with step 13, the water inlet 8 of relief tube 2 is provided with water pipe connecting hole 11, water pipe connecting hole 11 is arranged on the end face of water inlet 8 in the relief tube 2 (as shown in Figure 2), or is arranged on the side tube wall of water inlet 8 (as shown in Figure 4).Connect water pipe 10 1 ends and be communicated with the water inlet 8 of relief tube 2 by water pipe connecting hole 11 and step 13, the other end of connection water pipe 10 is communicated with the heat exchanger tube 12 in the heat exchanger.
The sectional area of relief tube 2 can less than, be equal to or greater than the sectional area that connects water pipe 10, the sectional area of relief tube 2 can less than, be equal to or greater than the sectional area of the heat exchanger tube 12 in the heat exchanger, behind the water freezing of heat exchanger tube 12, because the compression stress of spring is less than the expansive force of water freezing, freeze and in relief tube 2, expand by connecting water pipe 10, the spring compression, piston 4 promotes to the end of relief tube 2, and the effect of pressure release is better.Present embodiment medi-spring compression stress is less than the expansive force that freezes, greater than the normal pressure that uses of running water.
Water heater is when normal the use, the pressure of running water acts on the end face of piston 4, promoting piston 4 moves to seal cover 1 direction, compression spring 3 reaches the dynamic balance on piston 4 both sides, at this moment the normal pressure that uses of spring compression stress and running water is in poised state, the space that also has enough pistons 4 to move between piston 4 and close seal cover 1 in the relief tube 2.
When environment temperature is low, the water freezing of heat exchanger tube 12 solidifies in the heat exchanger, volume becomes big behind the water freezing, promote piston 4 extrusion springs 3, and move to the direction of seal cover 1, the seal cover through holes 9 of the air in the relief tube 2 from seal cover 1 are discharged, and the part ice cube enters in the relief tube 2, reduced the pressure of ice cube exchange heat pipe 12 after the water freezing volumetric expansion greatly, when avoiding environment temperature low in the gas heater water pipe in the heat exchanger because of the water freezing spalling in managing.Adopt the frost valve processing of this structure more convenient and can play antifreeze effect, automaticity height effectively.
Claims (10)
1. a gas heater is with the frost valve of heat exchanger, it is characterized in that it comprises seal cover (1), relief tube (2), spring (3), piston (4), sealing ring (5), connect water pipe (10), described piston (4) is provided with seal groove (6) and guide post (7), sealing ring (5) is enclosed within on the seal groove (6) in the piston (4), piston (4) be installed in the relief tube (2) and with water inlet (8) inner seal of relief tube (2) front end, be provided with seal cover through hole (9) in the seal cover (1), seal cover (1) is connected with the end of relief tube (2) and guide post (7) passes seal cover through hole (9) in the seal cover (1), spring (3) is enclosed within on the guide post (7), the water inlet (8) of relief tube (2) is provided with water pipe connecting hole (11), connect water pipe (10) one ends and be communicated with the water inlet (8) of relief tube (2) by water pipe connecting hole (11), the other end of connection water pipe (10) is communicated with the heat exchanger tube (12) in the heat exchanger.
2. gas heater according to claim 1 is characterized in that with the frost valve of heat exchanger described seal cover (1) is a clamp nut, and seal cover (1) is connected with the end thread of relief tube (2).
3. gas heater according to claim 1 and 2 is characterized in that with the frost valve of heat exchanger described sealing ring (5) is the O RunddichtringO.
4. gas heater according to claim 1 and 2 is characterized in that with the frost valve of heat exchanger described water pipe connecting hole (11) is arranged on the end face of water inlet (8) in the relief tube (2).
5. gas heater according to claim 3 is characterized in that with the frost valve of heat exchanger described water pipe connecting hole (11) is arranged on the end face of water inlet (8) in the relief tube (2).
6. gas heater according to claim 1 and 2 is characterized in that with the frost valve of heat exchanger described water pipe connecting hole (11) is arranged on the side tube wall of water inlet (8) in the relief tube (2).
7. gas heater according to claim 3 is characterized in that with the frost valve of heat exchanger described water pipe connecting hole (11) is arranged on the side tube wall of water inlet (8) in the relief tube (2).
8. gas heater according to claim 5 is characterized in that with the frost valve of heat exchanger described relief tube (2) front end is provided with step (13), connects water pipe (10) and is communicated with relief tube (2) by step (13).
9. gas heater according to claim 6 is characterized in that with the frost valve of heat exchanger described relief tube (2) front end is provided with step (13), connects water pipe (10) and is communicated with relief tube (2) by step (13).
10. gas heater according to claim 7 is characterized in that with the frost valve of heat exchanger described relief tube (2) front end is provided with step (13), connects water pipe (10) and is communicated with relief tube (2) by step (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202640736U CN201561577U (en) | 2009-12-01 | 2009-12-01 | Anti-frost valve of heat exchanger used on gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202640736U CN201561577U (en) | 2009-12-01 | 2009-12-01 | Anti-frost valve of heat exchanger used on gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561577U true CN201561577U (en) | 2010-08-25 |
Family
ID=42626723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202640736U Expired - Fee Related CN201561577U (en) | 2009-12-01 | 2009-12-01 | Anti-frost valve of heat exchanger used on gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561577U (en) |
-
2009
- 2009-12-01 CN CN2009202640736U patent/CN201561577U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20181201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |