CN200989661Y - Condensation constant temperature gas-fired water heater - Google Patents

Condensation constant temperature gas-fired water heater Download PDF

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Publication number
CN200989661Y
CN200989661Y CNU2006200119223U CN200620011922U CN200989661Y CN 200989661 Y CN200989661 Y CN 200989661Y CN U2006200119223 U CNU2006200119223 U CN U2006200119223U CN 200620011922 U CN200620011922 U CN 200620011922U CN 200989661 Y CN200989661 Y CN 200989661Y
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CN
China
Prior art keywords
gas
water
water heater
constant temperature
condenser
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Application number
CNU2006200119223U
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Chinese (zh)
Inventor
李键
郑涛
王任华
刘联产
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海尔集团公司
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Priority to CNU2006200119223U priority Critical patent/CN200989661Y/en
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Publication of CN200989661Y publication Critical patent/CN200989661Y/en

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    • Y02B30/102

Abstract

The utility model discloses a condensing type constant-temperature gas-fired hot water heater, comprising a gas distributor and a combustor group arranged above the gas distributor, a blaze induction system, a cold water inlet pipeline and a water flow sensor connected with the cold water feeding pipeline, a gas inlet pipeline, a hot water outlet pipeline, a condenser with coil tubes arranged at the upper part of hot water heater, a main heat exchanger communicated with a warm water outlet pipeline, a condensing water treater which is communicated with the lower part of the condenser through a condensing water drain tube, and an adjusting part which adjusts temperature, gas quantity and air quantity control. The adjusting part comprises a computer board, and a hot water temperature sensor, a super-temperature thermostat, a variable-frequency fan, and a gas proportional valve which are respectively connected with the computer board. The utility model adopts strong blast hot water heater as a basis, externally matching with separate stainless steel corrugated tube coil-tube type heat exchanging device so as to realize the full separation of one-time heat exchange, two-time heat exchange and condensing water collection, the heat efficiency is improved above 96%, the temperature of draining smoke is reduced to about 100 degree, moreover the utility model can effectively reduce the corrosion of condensing water to the main heat exchanger so as to ensure the operation life of the complete unit.

Description

A kind of condensing type constant temperature gas water heater

Technical field

The utility model relates to a kind of gas heater, especially a kind of condensing type constant temperature gas water heater with condensing heat-exchange device.

Background technology

Usually, gas heater, for example application number is that the structure of 200420094236.8 the disclosed a kind of gas heater of Chinese patent includes smoke evacuation air channel, blower fan, heat exchanger, aqueous vapor interstage valve, burner, water tank and housing, wherein between water tank and the burner coaming plate is housed, surround a semi-enclosed combustion chamber, the bottom, combustion chamber is provided with the air inlet of some exhaust passages, in order to improve the utilization rate of burner.But aspect heat exchange structure, do not propose to improve.

Aspect constant temp gas water heater, some patent applications are also arranged, as, application number is the Chinese patent of 200420064995.X, is the temperature adjustment water tank is housed in the housing of water heater.Application number is 01206912.4 Chinese patent, discloses a kind of combustion gas fast constant temperature water heater, is in a side of water heater one electric heating water storage thermostat to be installed.Application number is 98210867.2 Chinese patent, discloses a kind of constant-temperature hot water device, at the water heater hot-water pipe outlet thermostatic valve is housed.Application number is 200420069403.3 Chinese patent, discloses a kind of feedforward water-mixing type constant-temperature hot water device, is a kind of gas heater that has feedforward water mixing constant temperature device.Same the proposition aspect heat exchange structure improved in the above prior art.

Combustion gas can produce a large amount of steam when burning, according to measuring and calculating, and 1m 3Natural gas its when completing combustion, can produce the water of 1.6Kg, common gas heater contains a large amount of steam in discharged flue gas, if reclaim the latent heat in this part steam, both improved efficient, has saved the energy again, has also protected environment simultaneously.For this reason, two kinds of condensing hot water facilities have appearred at present: one, adopt the mode that increases the condensing heat-exchanger rig on the structure common taking out by force, though reached condensation effect, but since adopted take out structure by force and principle has limited effect, blower fan is arranged on the top of burner, and is dirty with condensed water in the heat exchanging process, and the thermal efficiency improves and is not obvious; It is lower to take out the thermal efficiency of water heater own by force, reaches quite difficulty of higher thermal efficient on this basis; They are two years old, increase the condensing hot water apparatus of heat exchanger heat absorbing sheet size, perhaps increase the condensing type water heater of heat exchanger heat absorbing sheet quantity and heat exchange area, because the volume of critical component heat exchanger is bigger, heat exchanging process is dirty with condensed water, causes the corrosion of condensed water to heat absorbing sheet, process materials problem and manufacturing cost are higher, the service life of heat exchanger is shorter, and difficult for maintenance and maintenance, the marketing prospect is relatively poor.

Common strong bulging gas heater adopts strong air blast, during the rated power burning, the temperature of flue gas is generally about 180 ℃, the content of CO, NOx is higher, the heat energy about 15% of also containing in the steam in the high-temperature flue gas is discharged into outdoorly, and in addition, the corrosion of condensed water can influence the service life of product, reclaim this part potential to raise the efficiency, energy savings, discharging environmental protection be very effective, the corrosion that reduces condensed water has important meaning to the performance that improves product.

Condensing is taken out gas heater by force can improve portion of hot efficient, but because common forced-ventilated gas water heater structure and principle restriction, the thermal efficiency improves not obvious.

Increase the condensing type water heater of heat exchanger heat absorbing sheet quantity and heat exchange area, because condensed water contacts the corrosion that causes with heat absorbing sheet, material cost increase and manufacturing cost are higher in order to prevent, effect is unsatisfactory, and service life is shorter, is difficult to promote the use of.

In view of this, special the utility model that proposes.

Summary of the invention

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, a kind of improved condensing type constant temperature gas water heater is provided, improve the thermal efficiency, reduce main part corrosion such as condensed water heat exchanging device and burner influence, guarantee the service property (quality) and the service life of complete machine.

For solving the problems of the technologies described above, the utility model adopts the basic design of technical scheme to be: a kind of condensing type constant temperature gas water heater, the sets of burners that comprises gas distributor and top thereof, the flame induction system, cold water inlet road and coupled water flow sensor, the gas inlet pipe road, hot water effluent's pipeline, it is characterized in that it also comprises condenser with coil pipe that is located at this water heater top and the main heat exchanger that is connected with its water outlet pipe, the bottom of condenser is communicated with the condensed water processor by condensate draining pipe, and adjusts temperature, the regulation and control part of gas quantity and air quantity.

The top of the coil pipe of described condenser is skewed, has an angle between the deflector that the planform of its below and coil pipe is complementary and the upper horizontal plane of main heat exchanger, and the water inlet end of this condenser is connected with water flow sensor and cold water inlet road thereof.

Described condensed water processor is a hollow body, and its lower end is provided with the pipe joint that can be connected with sewage pipe.

The regulation and control of described adjustment temperature, gas quantity and air quantity partly comprise computer plate and the hot water temperature's sensor, ultra-temp controller, frequency conversion fan, the gas ratio valve that are electrically connected with it.

The coil pipe of described condenser is made of corrugated stainless steel tubing.

The coil pipe of described condenser is constituted by elliptical tube and fin or lamellar structure or coil pipe and heat exchanger fin.

The coil pipe of described condenser adopts corrosion resistant metal, constitutes as copper material, aluminium, and its surface has through antiseptic anticorrosive coat.

Described hot water temperature's sensor and ultra-temp controller are located at the bottom and the top of hot water effluent's pipeline respectively.

Described frequency conversion fan is arranged on the below of sets of burners and gas distributor.

One end of described gas ratio valve is connected with the gas inlet pipe road, and the other end of gas ratio valve and gas distributor and sets of burners are connected.

After adopting technique scheme, the utility model compared with prior art has following beneficial effect.

A kind of condensing type constant temperature gas water heater of the utility model is owing to be a kind of improved novel heat exchange structure, the deficiencies in the prior art have been overcome, adopted strong bulging water heater structure to be the basis, is furnished with independently condenser, i.e. coiled heat-exchanger rig independently, the particularly coiled heat-exchanger rig heat exchange of corrugated stainless steel tubing formation, separate by deflector between itself and the main heat exchanger, and below condenser, be provided with the condensed water processor, and adjustment temperature, gas quantity, the regulation and control part of air quantity, the frequency conversion fan that rouses the water heater structure in addition by force has been located at the below of sets of burners, force the condensed water can be toward not dirty, but flow in the condensed water processor along deflector, enter sewer by blow-off pipe.Like this, a heat exchange, secondary heat exchange and separating fully that condensed water is collected have just been realized, cold water enters condenser to carry out entering main heat exchanger again after the heat exchange and carries out secondary heat exchange, made full use of heat energy, and reduced exhaust gas temperature, therefore, also just improved the thermal efficiency, reduced the corrosion influence of condensed water effectively, guaranteed the service life of main frame key components such as heat exchangers.

By detecting, the thermal efficiency of a kind of condensing type constant temperature gas water heater of the utility model can reach more than 96%, and than the thermal efficiency raising 10~15% of common strong bulging water heater, exhaust gas temperature only is about 100 ℃.CO, NO have been reduced simultaneously xEnvironment has been protected in discharging.

Below in conjunction with drawings and embodiments the utility model is described in further detail.

Description of drawings

Fig. 1 is the structural representation of a kind of condensing type constant temperature gas water heater of the utility model;

Fig. 2 is the workflow diagram of a kind of condensing type constant temperature gas water heater of the utility model.

The specific embodiment

As shown in Figure 1, the structure of a kind of condensing type constant temperature gas water heater of the present utility model comprises sets of burners 6, the flame induction system 15 on gas distributor 14 and top thereof, cold water inlet road 9 and water flow sensor joining with it 11, gas inlet pipe road 2, hot water effluent's pipeline 5.The principal character of the utility model condensing type constant temperature gas water heater is that it also comprises the condenser with coil pipe 17 16 that is located at this water heater top, this condenser 16 is connected with main heat exchanger 8 by its water outlet pipe 20, the bottom of this condenser 16 also is communicated with the condensed water processor by condensate draining pipe 12, and the regulation and control part of adjusting temperature, gas quantity and air quantity.The condensed water that this condensed water processor is produced in the course of the work in order to this condensing type constant temperature gas water heater of collection and treatment, condensed water is separated fully with heat exchange, a two times heat changing device, have corrosive acid condensate water and can not flow to key components such as main heat exchanger and cause corrosion, cause the reduction in its service life.

In the condensing type constant temperature gas water heater of the present utility model, the top of the coil pipe 17 of described condenser 16 is skewed, be that the below tilts from left to right shown in Fig. 1, the below of this coil pipe 17 is provided with the deflector 18 that the planform with this coil pipe 17 is complementary, this deflector 18 can make the condensed water of condenser flow in condensate draining pipe 12 and the condensed water processor along it downwards, has an angle (a) between the upper horizontal plane of deflector 18 and main heat exchanger 8.The water outlet pipe 20 of described condenser 16 is connected with main heat exchanger 8, its water inlet end is connected with water flow sensor 11 and cold water inlet road 9 thereof, cold water becomes warm water after entering by cold water inlet road 9 and water flow sensor 11 and absorbing heat for the first time in the coil pipe 17 of condenser, enters by water outlet pipe 20 and carries out secondary heat exchange in the main heat exchanger 8 and become high-temperature water and flow out.

In the condensing type constant temperature gas water heater of the present utility model, described condensed water processor 10 is a hollow body, its shape can be circular, also can make square, the lower end of this condensed water processor 10 is provided with the pipe joint 19 that can be connected with sewage pipe, condensed water in the condenser 16 can flow in the condensed water processor 10 along condensate draining pipe 12, and treated condensed water enters sewer pipe by the blow-off pipe that is connected with its pipe joint 19 again.

In the condensing type constant temperature gas water heater of the present utility model, the regulation and control of described adjustment temperature, gas quantity and air quantity partly comprise computer plate 13 and hot water temperature's sensor 1, ultra-temp controller 7, frequency conversion fan 4, the gas ratio valve 3 of the (not shown) that is electrically connected with it.Computer plate 13 is fixed on the housing of this water heater, by the adjusting of 13 pairs of gas quantities of computer plate and air quantity, sets up needed temperature, reaches normal combustion.

Above described hot water temperature's sensor 1 and ultra-temp controller 7 be located at the bottom and the top of hot water effluent's pipeline 5 of main heat exchanger respectively, its effect is that detected actual temperature value is sent to computer plate 13, compare analysis with user's set temperature value, the computer plate just can be according to the setting of program, regulate the rotating speed and the combustion gas ratio of frequency conversion fan 4, thereby guarantee that combustion gas and air reach certain ratio best combustion operating mode, are stabilized in design temperature rapidly.Described frequency conversion fan 4 is arranged on the below of sets of burners 6 and gas distributor 14, changed in the prior art and blower fan to be arranged on the burner top and, the thermal efficiency dirty with condensed water improves unconspicuous situation, by contrast, this set helps preventing flowing on the heat exchanger under the condensed water, can obviously improve the thermal efficiency.Described gas ratio valve 3, one end and gas inlet pipe road 2 are connected, the other end of gas ratio valve 3 and gas distributor 14 and sets of burners are connected, its effect is to regulate the control gas quantity, and be complementary with the air volume control of blower fan, combustion gas and air are mixed by optimal proportion send into gas distributor 14 and enter sets of burners 6, reach normal combustion.

For decay resistance and the heat dispersion that improves condenser, prolong its service life, in the utility model condensing type constant temperature gas water heater, the coil pipe of described condenser adopts corrosion resistant metal, constitute as copper material or aluminium, its surface has through antiseptic anticorrosive coat.The coil pipe of described condenser can adopt corrugated stainless steel tubing to constitute, and also can adopt elliptical tube and fin or lamellar structure or coil pipe and heat exchanger fin to constitute.The utility model preferentially adopts the coiled tube condenser of corrugated stainless steel tubing formation as a heat-exchanger rig, and is under equal conditions big with respect to the condenser heat exchange area of prior art, thereby improved heat exchange efficiency, reduced exhaust gas temperature.

In sum; the advantage of a kind of condensing type constant temperature gas water heater of the utility model is; thermal efficiency height after testing; the thermal efficiency can reach more than 96%; the thermal efficiency than common strong bulging water heater improves 10~15%; exhaust gas temperature can be reduced to about 100 ℃; thereby saved the energy; reduced CO, NOx discharging; protected environment; and realized a heat exchange and separating fully that secondary heat exchange and condensed water are collected, reduced the corrosion influence of condensed water effectively to key components such as main heat exchangers, guaranteed the service life of complete machine.

In order to further specify a kind of condensing type constant temperature gas water heater architectural feature of the utility model, its operation principle is described as follows.

Operation principle as depicted in figs. 1 and 2.

Consult Fig. 2 when pressing the on ﹠ off switch (not shown), during setting demand temperature, computer plate 13 is received desired signal, the igniting of starting ignition program, normal combustion, the setting value that hot water temperature's sensor 1 detects actual temperature value and user compares analysis, computer plate 13 is according to the setting of program, reaching requirement is normal combustion, do not reach requirement and then regulate the rotating speed that the combustion gas ratio is transferred electric current and frequency conversion fan 4, thereby guarantee that combustion gas and air reach certain ratio best combustion operating mode, are stabilized in design temperature rapidly and normal combustion.

By shown in Figure 1, cold water passes through water flow sensor 11 from inlet pipeline 9, computerized version 13 starts frequency conversion fan 4 work, gas ratio valve 3 is adjusted gas flow according to program, the blower fan coupling, send into by gas distributor 14 after air and the combustion gas mixing and enter sets of burners 6, produce high-temperature flue gas by sets of burners 6 burnings, through warm flue gas during high-temperature flue-gas are reduced to behind the main switch 8, after in condenser 16, carrying out a heat exchange, in warm flue-gas temperature be reduced to and discharge (shown in the arrow of Fig. 1 upper right side) behind the low-temperature flue gas, cold water absorbs in the coil pipe 17 of condenser and becomes stream of warm water behind the heat and go into main heat exchanger 8, carry out secondary heat exchange in main heat exchanger 8, warm water flows out through becoming high-temperature water behind the main heat exchanger 8, and warm flue gas entered condenser 16 and carries out a heat exchange during high-temperature flue-gas was reduced to.Warm water was sent into main heat exchanger 8 front portions and is carried out secondary heat exchange during the heat that cold water absorbs a heat exchange became, and condensed water occurs simultaneously.

In the process of carrying out a heat exchange, because the decline of flue-gas temperature, on heat exchange tube wall and inner surface, produce condensed water, condensed water flow to condensed water processor 10 along the outlet of condensate draining pipe 12, blow-off pipe (not shown) by tube connector joint 19 after handling enters sewer pipe, because condensed water is to have corrosive acidic liquid, can corrode not carrying out etch-proof metal material, thereby influence the operate as normal and the life-span of condenser, so the part that condenser contacts with condensed water all adopts corrosion resistant metal and nonmetallic materials to be made.

Claims (10)

1. condensing type constant temperature gas water heater, the sets of burners (6) that comprises gas distributor (14) and top thereof, flame induction system (15), cold water inlet road (9) and coupled water flow sensor (11), gas inlet pipe road (2), hot water effluent's pipeline (5), it is characterized in that it also comprises condenser with coil pipe (17) (16) that is located at this water heater top and the main heat exchanger (8) that is connected with its water outlet pipe (20), the bottom of condenser (16) is communicated with condensed water processor (10) by condensate draining pipe (12), and adjusts temperature, the regulation and control part of gas quantity and air quantity.
2. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: the top of the coil pipe (17) of described condenser (16) is skewed, have an angle (a) between the deflector (18) that the planform of its below and coil pipe (17) is complementary and the upper horizontal plane of main heat exchanger (8), the water inlet end of this condenser (16) is connected with water flow sensor (11) and cold water inlet road (9) thereof.
3. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: described condensed water processor (10) is a hollow body, and its lower end is provided with the pipe joint (19) that can be connected with sewage pipe.
4. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: the regulation and control of described adjustment temperature, gas quantity and air quantity partly comprise computer plate (13) and the hot water temperature's sensor (1), ultra-temp controller (7), frequency conversion fan (4), the gas ratio valve (3) that are electrically connected with it.
5. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: the coil pipe of described condenser is made of corrugated stainless steel tubing.
6. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: the coil pipe of described condenser is constituted by elliptical tube and fin or lamellar structure or coil pipe and heat exchanger fin.
7. according to the described a kind of condensing type constant temperature gas water heater of claim 1, it is characterized in that: the coil pipe of described condenser adopts corrosion resistant metal, constitutes as copper material, aluminium, and its surface has through antiseptic anticorrosive coat.
8. according to the described a kind of condensing type constant temperature gas water heater of claim 4, it is characterized in that: described hot water temperature's sensor (1) and ultra-temp controller (7) are located at the bottom and the top of hot water effluent's pipeline (5) respectively.
9. according to the described a kind of condensing type constant temperature gas water heater of claim 4, it is characterized in that: described frequency conversion fan (4) is arranged on the below of sets of burners (6) and gas distributor (14).
10. according to the described a kind of condensing type constant temperature gas water heater of claim 4, it is characterized in that: an end of described gas ratio valve (3) and gas inlet pipe road (2) are connected, and the other end of gas ratio valve (3) and gas distributor (14) and sets of burners are connected.
CNU2006200119223U 2006-12-09 2006-12-09 Condensation constant temperature gas-fired water heater CN200989661Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101191658B (en) * 2006-11-20 2010-05-19 海尔集团公司 Condensing type constant temperature gas water heater
CN103307751A (en) * 2013-06-28 2013-09-18 贺州学院 Condensation type gas water heater
CN103776156A (en) * 2014-01-23 2014-05-07 威能(北京)供暖设备有限公司 Gas water heater capable of outputting water at constant temperature
CN103776155A (en) * 2014-01-23 2014-05-07 威能(北京)供暖设备有限公司 Temperature-constant gas water heater
CN103940092A (en) * 2014-05-08 2014-07-23 佛山市顺德区奇林电气有限公司 Combustion heating control device and method used for gas water heater
CN104110889A (en) * 2014-06-20 2014-10-22 芜湖美的厨卫电器制造有限公司 Water heater and control method thereof
CN106195973A (en) * 2016-07-07 2016-12-07 广西凌云县金字塔白毫茶商贸有限公司 Steam boiler and the control method of quantity of steam thereof
CN109631038A (en) * 2018-10-17 2019-04-16 中山市思源电器有限公司 A kind of gas burner in water heater

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101191658B (en) * 2006-11-20 2010-05-19 海尔集团公司 Condensing type constant temperature gas water heater
CN103307751A (en) * 2013-06-28 2013-09-18 贺州学院 Condensation type gas water heater
CN103776156A (en) * 2014-01-23 2014-05-07 威能(北京)供暖设备有限公司 Gas water heater capable of outputting water at constant temperature
CN103776155A (en) * 2014-01-23 2014-05-07 威能(北京)供暖设备有限公司 Temperature-constant gas water heater
CN103940092A (en) * 2014-05-08 2014-07-23 佛山市顺德区奇林电气有限公司 Combustion heating control device and method used for gas water heater
CN103940092B (en) * 2014-05-08 2015-10-14 佛山市顺德区奇林电气有限公司 For combustion heating control device and the combustion heating control method of gas heater
CN104110889A (en) * 2014-06-20 2014-10-22 芜湖美的厨卫电器制造有限公司 Water heater and control method thereof
CN106195973A (en) * 2016-07-07 2016-12-07 广西凌云县金字塔白毫茶商贸有限公司 Steam boiler and the control method of quantity of steam thereof
CN109631038A (en) * 2018-10-17 2019-04-16 中山市思源电器有限公司 A kind of gas burner in water heater

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C14 Grant of patent or utility model
GR01 Patent grant
CU01 Correction of utility model patent

Correction item: Co-patentee

Correct: Qingdao economic and Technological Development Zone Haier water heater Co., Ltd.

Number: 50

Page: The title page

Volume: 23

CU03 Correction of utility model patent gazette

Correction item: Co-patentee

Correct: Qingdao economic and Technological Development Zone Haier water heater Co., Ltd.

Number: 50

Volume: 23

COR Change of bibliographic data

Free format text: CORRECT: CO-PATENTEE TO: QINGDAO ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE HAIER WATER HEATER CO., LTD. ^

ERR Gazette correction

Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: QINGDAO ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE HAIER WATER HEATER CO., LTD. ^

AV01 Patent right actively abandoned

Granted publication date: 20071212

Effective date of abandoning: 20061209