CN204787299U - Take gas heater of frostproofing function of automatic drainage - Google Patents
Take gas heater of frostproofing function of automatic drainage Download PDFInfo
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- CN204787299U CN204787299U CN201520421658.XU CN201520421658U CN204787299U CN 204787299 U CN204787299 U CN 204787299U CN 201520421658 U CN201520421658 U CN 201520421658U CN 204787299 U CN204787299 U CN 204787299U
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Abstract
The utility model discloses a take gas heater of frostproofing function of automatic drainage, include: heat exchanger, and connect inlet tube, outlet pipe and the drain pipe on heat exchanger, its characterized in that: be equipped with temperature sensor on heat exchanger's heat exchange tube, it has water flow sensor, three -way valve to establish ties in proper order according to the direction of intaking on the inlet tube, arrange water piping connection on the by -pass port of three -way valve, be equipped with check valve no. 1 on the outlet pipe, be connected with branch pipe no. 1 between the play water end (W. E. ) of heat exchanger's play water end (W. E. ) and three -way valve, be equipped with the stop valve on branch pipe no. 1, play water end (W. E. ) and intaking of three -way valve at check valve no. 1 are connected with branch pipe no. 2 between the end. Compared with the prior art, the utility model provides a pair of gas heater has the function that low temperature automatic drainage prevented frostbite, water automatic re -setting opens.
Description
Technical field
The utility model relates to fluid heater technical field, particularly relates to a kind of gas heater with Auto-drainage antifreeze function.
Background technology
After a procedure, water of usually having a surplus in heat exchanger, water inlet pipe and outlet pipe, when temperature is lower in the winter time, remaining water easily freezes and causes pipeline spalling gas heater.For preventing pipeline to freeze spalling, most effective method carries out water-drainage antifreezing at present, has manually and automatic two kinds of drainage patterns.Manual draining operation gets up cumbersome, easily occurs that situation is omitted in draining; Auto-drainage is realized by sensor and controller, and degree of intelligence is high.The problems such as these automatic drainage freeze preventer drainings existing are incomplete, drainage efficiency is low cause drainage effect unsatisfactory, and can only Auto-drainage be carried out, often need to carry out special reset operation after remaining water is emptying, to ensure that gas heater can normally work when next time starts, use to user and make troubles.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide that a kind of low temperature Auto-drainage is antifreeze, automatically reset with water the gas heater opened.
For reaching above object, the utility model adopts following technical scheme.
With a gas heater for Auto-drainage antifreeze function, comprising: heat exchanger, and connect water inlet pipe, outlet pipe and drainpipe on the heat exchanger; It is characterized in that:
The heat exchanger tube of heat exchanger is provided with temperature sensor;
Water inlet pipe is in series with water flow sensor, triple valve successively by water inlet direction, and described drainpipe is connected on the by-pass port of triple valve;
Outlet pipe is provided with check valve one;
Between the water side and the water side of triple valve of heat exchanger, be connected with arm one, arm one is provided with stop valve;
Arm two is connected with between the water side and the water inlet end of triple valve of check valve one.
Further illustrating as such scheme, the heat exchanger tube of heat exchanger is provided with check valve two, described check valve two and outside air one-way conduction.
Further illustrating as such scheme, described arm two is provided with stop valve.In the utility model, arm two has bypass and draining two functions, need ensure that water flow sensor can detect water-flow signal and start water heater.When the caliber of arm two is larger, is guarantee water effect, also closes arm two by stop valve.
Further illustrating as such scheme, institute's gas heater is combustion gas fast type water heater, is provided with burner in the below of heat exchanger.
Further illustrating as such scheme, described triple valve, stop valve, temperature sensor, water flow sensor are connected with signal with gas heater master controller.
Compared with prior art, a kind of gas heater that the utility model provides has following beneficial effect:
When one, using water, when water flow sensor detects water-flow signal, triple valve resets, and realizes the intelligent starting of water heater, thoroughly solves the defect of manual reset aspect.The existence of arm two simultaneously effectively reduces the water cut-off temperature-rising of water heater.Fundamentally solve the bursting by freezing problem of heat exchanger, ensure that the safety of water tank in winter; Meanwhile, the setting of temperature sensor and water flow sensor, makes without the need to artificially paying close attention to weather condition and carries out draining, artificial recovery is not needed after draining yet, according to user's service condition, using state can be automatically switched to, have that reliability is high, simple operation and other advantages.
Two, by arranging check valve at pipeline top, water inlet pipe and outlet pipe form annular channels by arm; During draining, check valve is opened automatically, and water is discharged rapidly under gravity, and drainage effect is good.
Accompanying drawing explanation
Figure 1 shows that the gas heater structural representation that the utility model provides;
Figure 2 shows that the antifreeze control principle drawing of Auto-drainage.
Description of reference numerals:
1, heat exchanger, 2, water inlet pipe, 3, outlet pipe, 4, drainpipe, 5, temperature sensor, 6, water flow sensor, 7, triple valve, 8, check valve one, 9, arm one, 10, stop valve, 11, arm two, 12, controller, 13, check valve two, 14, burner.
Detailed description of the invention
Understand essence of the present utility model better for convenience of those of ordinary skill in the art, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
As shown in Figure 1, a kind of gas heater with Auto-drainage antifreeze function, comprising: heat exchanger 1, and is connected to water inlet pipe 2, outlet pipe 3 and the drainpipe 4 on heat exchanger 1; It is characterized in that: on the heat exchanger tube of heat exchanger 1, be provided with temperature sensor 5; Water inlet pipe 2 is in series with water flow sensor 6, triple valve 7 successively by water inlet direction, and described drainpipe 3 is connected on the by-pass port of triple valve 7; Outlet pipe 3 is provided with check valve 1; Between the water side of heat exchanger 1 and the water side of triple valve 7, be connected with arm 1, arm 1 is provided with stop valve 10; Arm 2 11 is connected with between the water side of check valve 1 and the water inlet end of triple valve 7.
As shown in Figure 2, described triple valve 7, stop valve 10 are all manipulated by controller 12, and described controller 12 is connected with temperature sensor, water flow sensor signal.
In real work, when the temperature that temperature sensor 5 detects is lower than design temperature, controller 12 controls triple valve 7 and commutates, and opens the stop valve 10 being positioned at arm 1, makes water inlet pipe 2, outlet pipe 3 is connected with drainpipe 4, carry out draining.Draining terminates rear stop valve 10 and closes; When user's water, water enters outlet pipe 3 by arm 2 11, and due to the existence of check valve 1, water reversely can not enter heat exchanger 1; At this moment, water flow sensor 6 detects water-flow signal, and controller 12 controls triple valve 7 and resets, and realizes the intelligent starting of water heater.
In the present embodiment, institute's gas heater is combustion gas fast type water heater, is provided with burner 14 in the below of heat exchanger 1.Preferred controller 12 is the master controller of combustion gas fast type water heater.In actual use procedure, arm two can also play the effect reducing water cut-off temperature-rising.When the internal diameter of arm two is larger, need arm two adds stop valve.
Further, for making the Yu Shuineng in heat exchanger discharge smoothly, the heat exchanger tube of heat exchanger 1 is provided with check valve 2 13, described check valve 2 13 and outside air one-way conduction.After more than in heat exchanger 1, water discharges a part, check valve 2 13 is opened automatically, and the remaining water in heat exchanger 1 is discharged smoothly under self gravitation effect.
The setting of check valve 2 13, greatly improves drainage rates, avoids in drainage procedure, the possibility of water freezing in water heater.Traditional gas heater is in antifreeze drainage procedure, if the lower and cold wind of outdoor temperature pours in down a chimney, very short time heater inside inside just has part and freezes; If do not have check valve 2 13, water even cannot be got rid of or water discharge time is longer causes part water freezing.Through experiment test, the present embodiment, by increasing unidirectional 2 13, can make remaining water in water heater emptying in 20s, avoid the possibility of freezing in drainage procedure.
Above detailed description of the invention has been described in detail essence of the present utility model, but can not limit protection domain of the present utility model with this.Apparently, under the enlightenment of the utility model essence, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that these improve and modify and all drops within claims of the present utility model.
Claims (5)
1. the gas heater with Auto-drainage antifreeze function, comprising: heat exchanger, and connects water inlet pipe, outlet pipe and drainpipe on the heat exchanger; It is characterized in that:
The heat exchanger tube of heat exchanger is provided with temperature sensor;
Water inlet pipe is in series with water flow sensor, triple valve successively by water inlet direction, and described drainpipe is connected on the by-pass port of triple valve;
Outlet pipe is provided with check valve one;
Between the water side and the water side of triple valve of heat exchanger, be connected with arm one, arm one is provided with stop valve;
Arm two is connected with between the water side and the water inlet end of triple valve of check valve one.
2. a kind of gas heater with Auto-drainage antifreeze function according to claim 1, is characterized in that, the heat exchanger tube of heat exchanger is provided with check valve two, described check valve two and outside air one-way conduction.
3. a kind of gas heater with Auto-drainage antifreeze function according to claim 1, is characterized in that, described arm two is provided with stop valve.
4. a kind of gas heater with Auto-drainage antifreeze function according to claim 1, is characterized in that, institute's gas heater is combustion gas fast type water heater, is provided with burner in the below of heat exchanger.
5. a kind of gas heater with Auto-drainage antifreeze function according to claim 1, it is characterized in that, described triple valve, stop valve, temperature sensor, water flow sensor are connected with signal with gas heater master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421658.XU CN204787299U (en) | 2015-06-17 | 2015-06-17 | Take gas heater of frostproofing function of automatic drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421658.XU CN204787299U (en) | 2015-06-17 | 2015-06-17 | Take gas heater of frostproofing function of automatic drainage |
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| CN204787299U true CN204787299U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520421658.XU Active CN204787299U (en) | 2015-06-17 | 2015-06-17 | Take gas heater of frostproofing function of automatic drainage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332965A (en) * | 2019-08-05 | 2019-10-15 | 广东万家乐燃气具有限公司 | A kind of water flow sensor and gas heater |
-
2015
- 2015-06-17 CN CN201520421658.XU patent/CN204787299U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332965A (en) * | 2019-08-05 | 2019-10-15 | 广东万家乐燃气具有限公司 | A kind of water flow sensor and gas heater |
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