CN203323347U - Constant-temperature gas water heater - Google Patents

Constant-temperature gas water heater Download PDF

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Publication number
CN203323347U
CN203323347U CN2013203768432U CN201320376843U CN203323347U CN 203323347 U CN203323347 U CN 203323347U CN 2013203768432 U CN2013203768432 U CN 2013203768432U CN 201320376843 U CN201320376843 U CN 201320376843U CN 203323347 U CN203323347 U CN 203323347U
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CN
China
Prior art keywords
water
pipe
temperature
temperature sensor
outlet
Prior art date
Application number
CN2013203768432U
Other languages
Chinese (zh)
Inventor
刘联产
张鑫
徐金娟
郑涛
李键
Original Assignee
海尔集团公司
青岛经济技术开发区海尔热水器有限公司
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Application filed by 海尔集团公司, 青岛经济技术开发区海尔热水器有限公司 filed Critical 海尔集团公司
Priority to CN2013203768432U priority Critical patent/CN203323347U/en
Application granted granted Critical
Publication of CN203323347U publication Critical patent/CN203323347U/en

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Abstract

The utility model provides a constant-temperature gas water heater which comprises a main control plate, a heat exchanger, a combustor, a water inlet pipe and a water outlet pipe, and further comprises a bypass pipe, wherein the bypass pipe is connected with the water inlet pipe and the water outlet pipe, a first flow control device is arranged on the bypass pipe, a first temperature sensor is arranged at an outlet of the heat exchanger, a second temperature sensor is arranged at an outlet of the water outlet pipe, and the first temperature sensor, the second temperature sensor and the first flow control device are respectively electrically connected with the main control plate. The bypass pipe is arranged between the water inlet pipe and the water outlet pipe, the first flow control device is arranged on the bypass pipe, the main control plate controls the first flow control device to act for regulating the water flow of the bypass pipe according to temperature information acquired by the first temperature sensor and the second temperature sensor, so that the outlet water temperature of the water outlet pipe is constant, hot water with the overhigh temperature is prevented from being output, the constant outlet water temperature of the constant-temperature gas water heater is realized, and the comfort and the safety of the constant-temperature gas water heater are improved.

Description

Constant temp gas water heater
Technical field
The utility model relates to gas heater, relates in particular to a kind of constant temp gas water heater.
Background technology
At present, water heater is household electrical appliance commonly used in people's daily life, according to the heating source difference, is divided into electric heater and gas heater, for gas heater, can realize immediately exporting hot water because of it and be widely used.The gas heater water inlet pipe is delivered to running water in heat exchanger, and the water in the fuel gas buring heating heat exchanger, then transfer out for the user by outlet pipe.In use, user Guan Shuihou, still there is the hot water that temperature is higher in heat exchanger, while again opening water outlet, hot water in heat exchanger is become high-temperature water and easily scalds the user by heating again, cause gas heater leaving water temperature of the prior art non-constant, comfort level is poor and security is lower.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of constant temp gas water heater is provided, in the solution prior art, the gas heater leaving water temperature is non-constant, the defect that comfort level is poor and security is lower, realize the constant temp gas water heater effluent temperature constancy, improves comfort level and security.
The technical scheme that the utility model provides is, a kind of constant temp gas water heater, comprise master control borad, heat exchanger, burner, water inlet pipe and outlet pipe, also comprise bypass pipe, described bypass pipe connects described water inlet pipe and described outlet pipe, be provided with the first flow control device on described bypass pipe, the exit that the exit of described heat exchanger is provided with the first temperature sensor, described outlet pipe is provided with the second temperature sensor, and described the first temperature sensor, described the second temperature sensor and described first flow control device are electrically connected to described master control borad respectively.
Further, be provided with the second amount control device on described water inlet pipe, the import department of described water inlet pipe is provided with three-temperature sensor, and described second amount control device and described three-temperature sensor are electrically connected to described master control borad respectively.
Further, described second amount control device is between the outlet of the import of described bypass pipe and described water inlet pipe.
Further, described second amount control device is between the import of the import of described bypass pipe and described water inlet pipe.
Further, described first flow control device and described second amount control device are flow control valve or water yield servomechanism.
Further, described bypass pipe also is provided with the first check valve, and described the first check valve is between described first flow control device and described outlet pipe.
Further, be provided with the second check valve on described outlet pipe, described the second check valve is between the import of the outlet of described bypass pipe and described outlet pipe.
The constant temp gas water heater that the utility model provides, by between water inlet pipe and outlet pipe, bypass pipe being set, and be provided with the first flow control device on bypass pipe, master control borad is according to the temperature information of the first temperature sensor and the collection of the second temperature sensor, learn heat exchanger leaving water temperature and outlet pipe leaving water temperature, thereby control the discharge that bypass pipe is adjusted in the action of first flow control device, make the effluent temperature constancy of outlet pipe, avoid exporting the hot water of excessive temperature, realize the constant temp gas water heater effluent temperature constancy, comfort level and the security of constant temp gas water heater have been improved.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation that Fig. 1 is the utility model constant temp gas water heater embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
As shown in Figure 1, the present embodiment constant temp gas water heater, comprise master control borad (not shown), heat exchanger 1, burner 8, water inlet pipe 2 and outlet pipe 3, also comprise bypass pipe 4, bypass pipe 4 connects water inlet pipe 2 and outlet pipe 3, be provided with first flow control device 51 on bypass pipe 4, the exit that the exit of heat exchanger 1 is provided with the first temperature sensor 61, outlet pipe 3 is provided with the second temperature sensor 62, the first temperature sensors 61, the second temperature sensor 62 and first flow control device 51 and is electrically connected to master control borad respectively.
Particularly, the present embodiment constant temp gas water heater is provided with bypass pipe 4 between water inlet pipe 2 and outlet pipe 3, and the first flow control device 51 on bypass pipe 4 can be controlled the flow of cold water in bypass pipe 4.Current distribution in machine during normal operation: it is initial point that the bypass discharge of take accounts for 20% of total Water, all return initial point after each thermostatted water rheology is moving, when the user suspends water in water utilizing process, the water that has heating in heat exchanger 1, as the user again during water, water in heat exchanger 1 is added the thermosetting high-temperature water again, the first temperature sensor 61 detects the water temperature of high-temperature water and passes to electric-controlled plate, electric-controlled plate will be adjusted first flow control device 51 augmented flows, water in bypass pipe 4 mixes to reduce water temperature with the water of output in heat exchanger 1 in outlet pipe 3, the second temperature sensor 62 that the exit of outlet pipe 3 arranges detects coolant-temperature gage and feeds back to electric-controlled plate, again to regulate the flow of first flow control device 51 by electric-controlled plate, then successive Regression initial point, guarantee effluent temperature constancy, avoid occurring hot water scald user's phenomenon.
Further, be provided with second amount control device 52 on water inlet pipe 2, the import department of water inlet pipe 2 is provided with three-temperature sensor 63, and second amount control device 52 and three-temperature sensor 63 are electrically connected to master control borad respectively.Concrete, in use, the leaving water temperature of outlet pipe 3 easily is subject to the fluctuation of inflow or rapid temperature rise and drop and changes, when inflow increases suddenly, the temperature of the hot water of heat exchanger 1 output reduces, the first temperature sensor 61 detected temperatures signal feedback are to master control borad, and master control borad, according to water tank temperature, is revised and reduced bypass discharge; Carry out the proportioning valve adjusting simultaneously, increase air inflow, after stablizing, bypass discharge successive Regression initial point, guarantee that leaving water temperature is consistent with design temperature, and vice versa.Meanwhile, when the present embodiment constant temp gas water heater has just been opened, because the water in heat exchanger 1 can not be heated to design temperature immediately, the user need to wait for the time of 10-15s usually, and feed back to master control borad by the water temperature of three-temperature sensor 63 detection water inlet pipe 2 water inlets, master control borad will be adjusted second amount control device 52 and reduce flow, reduce the water yield of little heat exchanger 1, increase the heat time heating time of the water in heat exchanger 1, close first flow control device 51 simultaneously, just can realize obtaining fast the hot water of design temperature, shorten period of reservation of number to 3-5s.Wherein, second amount control device 52 can be between the outlet of the import of bypass pipe 4 and water inlet pipe 2, and now, second amount control device 52 is controlled separately the inflow of heat exchanger 1; Perhaps, second amount control device 52 is between the import of the import of bypass pipe 4 and water inlet pipe 2, now, second amount control device 52 is controlled total inflow, and first flow control device 51 and second amount control device 52 cooperatively interact and control the inflow of heat exchanger 1.And the first flow control device 51 in the present embodiment and second amount control device 52 can be flow control valve or water yield servomechanism.
Further, bypass pipe 4 also is provided with the first check valve 71, the first check valves 71 between first flow control device 51 and outlet pipe 3.Concrete, by the first check valve 71, avoid occurring that the phenomenon of reverse flow occurs bypass pipe 4, guarantee that the water in bypass pipe 4 flows to outlet by import.Simultaneously, be provided with the second check valve 72, the second check valves 72 on outlet pipe 3 between the import of the outlet of bypass pipe 4 and outlet pipe 3, by the second check valve 72, avoid the aqueous reflux of bypass pipe 4 outputs to enter to heat exchanger 1.
The present embodiment constant temp gas water heater, by between water inlet pipe and outlet pipe, bypass pipe being set, and be provided with the first flow control device on bypass pipe, master control borad is according to the temperature information of the first temperature sensor and the collection of the second temperature sensor, learn heat exchanger leaving water temperature and outlet pipe leaving water temperature, thereby control the discharge that bypass pipe is adjusted in the action of first flow control device, make the effluent temperature constancy of outlet pipe, avoid exporting the hot water of excessive temperature, realize the constant temp gas water heater effluent temperature constancy, comfort level and the security of constant temp gas water heater have been improved.The situation temperature changed in the water yield because of heat exchanger remains unchanged, regulate and guarantee out water termostat by the change of the bypass water yield and PID, there are not the high frequency time heating and cooling in heat exchanger, in the time of can preventing from using water at low temperature, machine produces condensed water corrosion machine, can guarantee again can not reach the effect of good protection heat exchanger because discharge reduces suddenly to cause the machine dry combustion method, effectively extend the service life of machine; Constant temp gas water heater has pre-lock water yield function, the main method realized is to remain on 80% aperture by programme-control main road water servomechanism open circuit, so both met the water in the daily life, also can be in the situation that the discharge fluctuation guarantees that by regulating main road water servomechanism aperture size discharge is stable, reduces fluctuating temperature; Constant temp gas water heater can also prevent that the user from scalding, when daily water consumption, bypass water servomechanism is keeping passing through 20% aperture of total Water always, effectively avoided scalding because of the user that discharge fluctuates or other situations cause water temperature overshoot to cause, in the time of need to using high-temperature water as the user, such as the bathtub water filling, in the situation that close the water user, machine temperature is set to more than 50 ℃, bypass water servomechanism will, according to the stop water route, guarantee the use of user's high-temperature water.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (7)

1. a constant temp gas water heater, comprise master control borad, heat exchanger, burner, water inlet pipe and outlet pipe, it is characterized in that, also comprise bypass pipe, described bypass pipe connects described water inlet pipe and described outlet pipe, be provided with the first flow control device on described bypass pipe, the exit that the exit of described heat exchanger is provided with the first temperature sensor, described outlet pipe is provided with the second temperature sensor, and described the first temperature sensor, described the second temperature sensor and described first flow control device are electrically connected to described master control borad respectively.
2. constant temp gas water heater according to claim 1, it is characterized in that, be provided with the second amount control device on described water inlet pipe, the import department of described water inlet pipe is provided with three-temperature sensor, and described second amount control device and described three-temperature sensor are electrically connected to described master control borad respectively.
3. constant temp gas water heater according to claim 2, is characterized in that, described second amount control device is between the outlet of the import of described bypass pipe and described water inlet pipe.
4. constant temp gas water heater according to claim 2, is characterized in that, described second amount control device is between the import of the import of described bypass pipe and described water inlet pipe.
5. constant temp gas water heater according to claim 2, is characterized in that, described first flow control device and described second amount control device are flow control valve or water yield servomechanism.
6. constant temp gas water heater according to claim 1, is characterized in that, described bypass pipe also is provided with the first check valve, and described the first check valve is between described first flow control device and described outlet pipe.
7. constant temp gas water heater according to claim 1, is characterized in that, is provided with the second check valve on described outlet pipe, and described the second check valve is between the import of the outlet of described bypass pipe and described outlet pipe.
CN2013203768432U 2013-06-28 2013-06-28 Constant-temperature gas water heater CN203323347U (en)

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Application Number Priority Date Filing Date Title
CN2013203768432U CN203323347U (en) 2013-06-28 2013-06-28 Constant-temperature gas water heater

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106066094A (en) * 2015-04-21 2016-11-02 株式会社能率 Hot-water supply device
CN106556024A (en) * 2016-11-29 2017-04-05 无锡市锡源锅炉有限公司 A kind of boiler exhaust gas residual neat recovering system
CN109237800A (en) * 2018-10-22 2019-01-18 广东格兰仕集团有限公司 Divide water temperature adjustment water circuit system
CN109237801A (en) * 2018-10-22 2019-01-18 广东格兰仕集团有限公司 Divide water register
CN109297180A (en) * 2017-07-25 2019-02-01 青岛经济技术开发区海尔热水器有限公司 Intelligent preheating circulating gas water heater, prewarming circulating system and control method
CN110822718A (en) * 2018-08-13 2020-02-21 芜湖美的厨卫电器制造有限公司 Heating device and water heater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106066094A (en) * 2015-04-21 2016-11-02 株式会社能率 Hot-water supply device
CN106066094B (en) * 2015-04-21 2020-06-26 株式会社能率 Hot water supply device
CN106556024A (en) * 2016-11-29 2017-04-05 无锡市锡源锅炉有限公司 A kind of boiler exhaust gas residual neat recovering system
CN109297180A (en) * 2017-07-25 2019-02-01 青岛经济技术开发区海尔热水器有限公司 Intelligent preheating circulating gas water heater, prewarming circulating system and control method
CN110822718A (en) * 2018-08-13 2020-02-21 芜湖美的厨卫电器制造有限公司 Heating device and water heater
CN109237800A (en) * 2018-10-22 2019-01-18 广东格兰仕集团有限公司 Divide water temperature adjustment water circuit system
CN109237801A (en) * 2018-10-22 2019-01-18 广东格兰仕集团有限公司 Divide water register

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