CN201488223U - Volume-type gas water heater - Google Patents
Volume-type gas water heater Download PDFInfo
- Publication number
- CN201488223U CN201488223U CN2009200440241U CN200920044024U CN201488223U CN 201488223 U CN201488223 U CN 201488223U CN 2009200440241 U CN2009200440241 U CN 2009200440241U CN 200920044024 U CN200920044024 U CN 200920044024U CN 201488223 U CN201488223 U CN 201488223U
- Authority
- CN
- China
- Prior art keywords
- air
- burner
- communicated
- combustion
- water heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a volume-type gas water heater which belongs to the technical field of water heaters, and comprises a water tank, a fan, a burner and a burning heat exchange pipeline; an air inlet of the fan is communicated with the air, and an air outlet thereof is connected with an air supply outlet; the air supply outlet is communicated with the burner through a first air supply channel, and simultaneously, is communicated with the burning heat exchange pipeline through a second air supply channel; and at least one part of the burning heat exchange pipeline is arranged in the water tank, one end thereof is communicated with the outlet of the burner, and the other end thereof is communicated with the air. Or the other end of the burning heat exchange pipeline is communicated with the air inlet of the fan; and the air outlet of the fan is communicated with the air. Compared with the prior art, the utility model solves the problems of low pollutant emission and high energy efficiency under low excess air coefficient, researches a volume-type gas water heater which adopts partial of a pre-mixing burning system, and has the advantages of high input power, short recovery time, small size, good safety, small excessive air coefficient, high heat efficiency and low pollutant emission.
Description
Technical field
The utility model relates to a kind of gas heater, and especially a kind of gas heater that merges volumetric gas water heater and fast gas heater advantage belongs to technical field of water heaters.
Background technology
Understand according to the applicant, the gas heater that the existing market occupation rate is bigger can be divided into volumetric gas water heater and quick formula gas heater by the hot water occupation mode.
The formula gas heater is a kind of hot water firing equipment of plug and play fast, comes from Japan, the development of existing many decades at home, and the combustion system of market general product is the partly-premixed combustion system of closed, input power can reach 32kw.Typical structure is (wind passage of 1 ' expression among the figure as shown in Figure 1,2 ' expression secondary air channel, 3 ' expression heat exchanger, 4 ' expression burner, 5 ' expression blower fan, 6 ' expression cooling water inlet, 7 ' expression fuel gas inlet, 8 ' expression hot water outlet), its combustion system places the heat exchanger bottom, and flame burns from bottom to top, the general fiery row's composition of a plurality of harmonica-types burners that use, Japanese patent laid-open 2008-25985, flat 3-64314, flat 1-144616, Chinese patent 200720051450,200620011924,93240258,97240226 grades are all studied this structure and burner thereof.A kind of firing equipment similarly is the fuel wall hanging boiler for dual purpose from Europe, is used for domestic hot water's supply and heating, the similar quick formula gas heater of its combustion system, but have part high energy efficiency product to adopt the full premix combustion system.
The partly-premixed combustion system of closed described " airtight " is meant that from air intake to exhanst gas outlet be a simply connected passage, and combustion system has and only have an air intake.The Dui Ying airtight combustion system of a kind of traditional combustion mode right and wrong with it.Non-closed system places atmosphere with burner, does not generally have blower fan or blower fan to place system's end, utilizes the density contrast of cold and hot air or the suction of blower fan to produce pressure head, forms little negative pressure in the combustion chamber, and the required air of burning is sucked the combustion chamber naturally.Airtight combustion system generally is in the turbulent combustion state, and combustion intensity is big, and non-airtight combustion system then is in the laminar combustion state.So under equal combustion chamber volume and working environment, the power output of non-airtight combustion system is less than airtight combustion system.
Partly-premixed burning typically refers to, and system is divided into two parts with the combustion air that blower fan provides, and a part directly enters burner, is called wind one time; The passage of a part of in addition spontaneous combustion device outside enters the combustion chamber, is called secondary wind.One time wind evenly mixes with the combustion gas that enters burner, is called premixed gas.When lack of air in the premixed gas when supporting the completing combustion of fuel, a part of fuel in the premixed gas at first in the burning of burner outlet place, forms internal flame, the residue unburned fuel relies on diffusion process and the mixed combustion of secondary wind, the formation flame envelope.If the secondary wind that provides still is not enough to support combustion gas complete after-flame in the combustion chamber, then can cause pollutant discharge amount height such as CO.In the common product design, for controlling the pollutant emission level such as CO of this type of partly-premixed combustion system, must provide much larger than the required air capacity of theory, be that excess air coefficient needs much larger than 1, the excess air coefficient of design is up to 1.8 to 2.5 (promptly the air capacity that needs than theory provides 80% to 150% more) usually.Yet excessive air has improved the requirement to blower fan, and system's combustion noise is increased, and heat exchange efficiency reduces.
Corresponding with partly-premixed combustion system is the full premix combustion system, and it is generally believed it is a kind of more advanced combustion system.The full premix combustion system is mixed combustion gas and combustion air before burner fully, generally excess air coefficient is controlled at 1.2-1.5.Gaseous mixture is from the rapid after-flame in burner ejection back, and burning velocity is fast, and pollutant emission level is low.Yet the mode of just combustion gas-combustion air being mixed fully before this burning has very big security risk.Generally speaking, the proportioning of fuel and air is more near stoichiometric ratio in premixed gas, and the possibility that tempering takes place is also big more, and tempering not only destroys normal combustion, also can burn out equipment, even set off an explosion, and brings threat for equipment and personal safety.In addition, a kind of typical premix mode is at the blower fan front end combustion gas introducing device to be set, combustion gas and air are mixed in blower fan, this hybrid mode requires very high to blower fan, if blower fan is can not fine sealing or can not effectively shield static, then the slight leakage of gaseous mixture or small burning things which may cause a fire disaster all can cause burning, finally cause blast, and often cost is very high and satisfy the blower fan of sealing and antistatic requirement.Therefore, guarantee that security of system becomes the key subjects of full premix combustion systems face with reducing cost.
Volumetric gas water heater comes from the U.S..Usually, this kind water heater volume to satisfy big yield demands such as bathtub, more meets the water demand that people improve day by day more than 200L, but its huge volume is unsuitable for the less user installation of living space, and Chinese living conditions have limited its development at home.Therefore, how under the situation that reduces the water tank volume, to increase effective hot water supply and be called the problem that needs to be resolved hurrily.
Volumetric gas water heater combustion system commonly used is full premix combustion system and the partly-premixed combustion system of non-closed.The displacement type water heater of employing full premix combustion system also has high two defectives of poor stability and cost as previously mentioned.Adopt the displacement type water heater of the partly-premixed combustion system of non-closed generally to make cylinder iron disc type burner, because the inherent characteristic of non-airtight combustion system, adopt the general output load of volume water heater of this combustion system less, after one time water finishes, need to recover more than 1 hour.In case strengthen the input power of this burner, just need more combustion air and bigger combustion chamber, obviously exceeded the limit of power of this spontaneous replenish air mode.
In sum, designing and developing the gas heater of a kind of comprehensive formula fast and volumetric gas water heater advantage, is the problem that is worth research.The Chinese patent of the patent No. 200720080101 is attempted a kind of two-fold advantage that has quick formula gas heater " quick hot water without interruption " and volumetric gas water heater " constant-temperature effluent " concurrently of design, has bigger storage again and regulates the gas heater of the ability of energy.The Chinese patent of the patent No. 200410024980 is also attempted in this respect.Yet these two kinds of simple superposition that method all is displacement type water heater and fast gas heater do not break through technically, system complex, and volume is also bigger, is not suitable for the small apartment user and uses.
On the other hand, in the gas heater research field, no matter the positive displacement of generally believing or quick formula, full premix combustion all are a kind of more advanced combustion systems, have only and adopt the full premix combustion system just can reach low pollutant emission and high energy efficiency under the low excess air coefficient.
The utility model content
The purpose of this utility model is: at the problem of above-mentioned prior art existence, break through and originally think that the full premix combustion mode is the thinking set that solves unique way of low pollutant emission under the low excess air coefficient and high energy efficiency, work out a kind of volumetric gas water heater that adopts partly-premixed combustion system, its input power is big, recovery time is short, volume is little, security is good, has characteristics such as excess air coefficient is little, the thermal efficiency is high, pollutant discharge amount is low concurrently.
One of volumetric gas water heater scheme of the present utility model is: comprise water tank, blower fan, burner, combustion heat-exchange pipeline; It is characterized in that: the air inlet of described blower fan communicates with atmosphere, and air outlet is picked the air port; Described air outlet is communicated with described burner by first air-supply passage (a wind passage), simultaneously by second air-supply passage (secondary air channel) and combustion heat-exchange pipeline connection, constitutes the totally-enclosed passage of air inlet to the combustion heat-exchange pipeline; Described combustion heat-exchange pipeline at least a portion is arranged in water tank, and an end is communicated with the outlet of burner, and the other end communicates with atmosphere.
Two of volumetric gas water heater scheme of the present utility model is: comprise water tank, blower fan, burner, combustion heat-exchange pipeline; It is characterized in that: air outlet is communicated with described burner by first air-supply passage (a wind passage), simultaneously by second air-supply passage (secondary air channel) and combustion heat-exchange pipeline connection; Described combustion heat-exchange pipeline at least a portion is arranged in water tank, and an end is communicated with the outlet of burner, and the other end is communicated with the air inlet of described blower fan, constitutes the totally-enclosed passage of air outlet to fan outlet; The air outlet of described blower fan communicates with atmosphere.
It is that described combustion heat-exchange pipeline is made of combustion chamber and heat exchanging pipe that the utility model further improves, and described burner connects heat exchanging pipe by the combustion chamber.During specific design, both can the combustion chamber place that water tank is outer, heat exchanging pipe is arranged in water tank, also can the combustion chamber and heat exchanging pipe all be arranged in water tank.
During water heater working of the present utility model, the part air forms a wind, sends into behind the burner and combustion gas mixing by first air-supply passage, and gaseous mixture enters combustion chamber and burning from burner outlet, forms the flame internal flame; Another part air forms secondary wind, enters the combustion chamber by second air-supply passage, with the unburnt fuel gas buring of wind, forms the flame flame envelope.Combustion gas completing combustion in the combustion chamber produces high-temperature flue gas, high-temperature flue gas in the combustion heat-exchange pipeline with water tank in water carry out heat exchange, high-temperature flue-gas finally enters atmosphere after reducing.
The beneficial effects of the utility model are:
1. the utility model is by the combustion system that will be widely used in quick formula gas heater and water tank that is applied to volumetric gas water heater and heat-exchange system combination, and utility model goes out a kind of volumetric gas water heater of suitable Chinese's living conditions.
2. this combination mode that the utility model proposed has broken through original thinking set, has opened up a kind of new mentality of designing.Present gas heater researcher generally believes that lower excess air coefficient and the discharging of less pollution thing are a pair of paradox, unique solutions is to adopt the full premix combustion mode, yet the utility model has then adopted the partly-premixed combustion system of above-mentioned closed, has solved the low excess air coefficient difficult problem of reduction pollutant emission down.
3. the gas heater that the utility model proposed is different by the mode of the accumulation energy that works long hours of small-power burner with traditional volume water heater, has adopted high-power burner, when user's water consumption hour, can realize uninterrupted water supply; When user's water consumption is big, the deficiency that the hot water that stores in the water tank can supplementary burner power.Therefore, the volume ratio of this water heater tradition displacement type water heater is little, is convenient to install, and makes the small apartment user also can use volumetric gas water heater.
4. the gas heater that the utility model proposed has the advantages that excess air coefficient is little, pollutant emission is low.By adopting the above-mentioned ripe partly-premixed combustion system of using of closed, and rational combustion heat-exchange pipeline structure is set, increase combustion chamber volume, make the time of staying of mist in the combustion chamber increase, it is more abundant to burn, even under less excess air coefficient, each Specifeca tion speeification of system such as the thermal efficiency and CO discharging etc. can reach the full premix combustion system level.
5. the gas heater that the utility model proposed has the advantages that security is good, cost is low.Gas concentration is higher than the aerial UEL of this combustion gas in the used burner of partly-premixed combustion system, has effectively guaranteed the safety in operation of system, and with respect to the full premix combustion system, the probability of this system's detonation, tempering is very little.In addition,, the performance requirement of blower fan is significantly reduced, also reached the purpose that reduces the overall system cost because system need not carry out combustion gas-Air mixing in blower fan inside.
In sum, the utility model is compared with prior art, the low pollutant emission under the low excess air coefficient and the problem of high energy efficiency have been solved, work out a kind of volumetric gas water heater that adopts partly-premixed combustion system, its input power is big, recovery time is short, volume is little, security is good, and excess air coefficient is little, the thermal efficiency is high, pollutant discharge amount is low.Have outstanding substantive distinguishing features and obvious improvement.
Description of drawings
Fig. 1 is the fundamental diagram of the existing quick formula water heater of combustion gas.
Fig. 2 is the structural representation of the utility model embodiment one.
Fig. 3 is the partial sectional view of A-A direction among Fig. 2.
Fig. 4 is the partial sectional perspective view of Fig. 3.
Fig. 5 is the structural representation of the utility model embodiment two.
Fig. 6 is the combustion system section of structure of the utility model embodiment three.
Fig. 7 is the structural representation of the utility model embodiment four.
Fig. 8 is the heat production outlet capacity contrast chart of the utility model and existing like product.
The specific embodiment
Below in conjunction with accompanying drawing some embodiment of the present utility model are elaborated.
Embodiment one
Fig. 2 to Fig. 4 is an exemplary embodiments of the present utility model.By above accompanying drawing as can be seen, the volumetric gas water heater of this enforcement comprises: water tank 1, blower fan 2, burner 3, combustion heat-exchange pipeline 4.Combustion heat-exchange pipeline 4 is made of combustion chamber 41 and heat exchanging pipe 42.Burner 3 is made up of one group of a plurality of harmonica-type fire row.Burner 3 is the drum type brake burner.Heat exchanging pipe 42 constitutes by the person in charge at middle part and connection and around the helix tube of being responsible for, and combustion chamber 41 is communicated with the person in charge by the undergauge Taper Pipe.
The air inlet 25 of blower fan 2 communicates with atmosphere, and air outlet 21 is picked air port 22; Air outlet 22 is communicated with burner 3 by first air-supply passage 23 (referring to Fig. 3), be communicated with combustion chamber 41 by second air-supply passage 24 simultaneously, second air-supply passage originates in the secondary aerofoil 242 between air inlet and combustion chamber, be communicated with combustion chamber 41 by the gap 241 between the burner fire row, constitute the totally-enclosed passage of air inlet to the combustion heat-exchange pipeline.Combustion heat-exchange pipeline 4 is arranged in water tank 1, one end and is communicated with the outlet of burner 3, and the other end communicates with atmosphere.
The combustion system of present embodiment is partly-premixed combustion system.The advantage of this system is that the required combustion air that burns is divided into two parts and enters combustion chamber 41, and this kind combustion system is airtight burning, and promptly combustion system is a simply connected region, and an air outlet 22 and an exhaust opening are only arranged.This part combustion air elder generation and combustion gas mixing enter behind the combustion chamber mode with the mixed combustion of secondary wind again, have higher security than full premix combustion system, because:
Usually, when the aerial concentration of combustion gas was lower than a certain limit, the shortage of heat that oxidation reaction produces can not carry out burning to remedy dispersed heat, and this concentration limit is called LEL L
LowWhen its concentration surpassed a certain limit, because anoxic also can't be burnt, this concentration limit was called UEL L
High, general designation explosion limit L, that is:
L＝V
gas/(V
air+V
gas)；......(1)
V wherein
GasBe the volume of combustion gas, V
AirVolume for air.
For burning is normally carried out, need to guarantee that gas concentration is in UEL and LEL scope.In the utility model and since adopted wind and secondary air separating from structure, can make gas concentration in the burner greater than UEL, promptly in burner, gas concentration is greater than the gas concentration of combustion chamber.In the combustion chamber, because the adding of secondary wind, mixture strength enters explosion limit, can not influence normally carrying out of burning.And the full premix combustion system as previously mentioned, and very easily blast is so this structure has improved the security of system.
Especially, methane is 15% at the airborne UEL of normal temperature and pressure, and then to adopting the described water heater of methane fuel, the gas concentration in its burner needs greater than 15%.
During fuel gas buring, according to reaction metering equation completing combustion 1m
3The required air capacity of combustion gas is called theoretical air requirement V
0, in the Actual combustion device,, being difficult to guarantee that combustion gas fully mixes with air if only by theoretical air requirement air supply, airborne oxygen can not participate in reaction fully, can cause incomplete combustion.So actual amount of supplied air is generally all greater than the theoretical air requirement.The air capacity V of effective supply and theoretical air requirement V
0Ratio be defined as excess air coefficient α, promptly
α＝V/V
0；......(2)
To HC fuel C
nH
m, theoretical air requirement V
0With the fuel quantity V that participates in reaction
GasBetween relation be:
V
0＝(n+0.25m)/0.21V
gas；......(3)
The excess air coefficient α that the utility model adopted is less than 1.3, and this value and present common fully-premixed combustion system are in same level.Discover that this value has been guaranteed the high heat exchange efficiency of system, and pollutant emission level is low, CO value particularly, under rated load less than 50PPM.Relatively, if identical combustion system is applied to quick formula gas heater, its CO value generally is higher than 100PPM, and excess air coefficient is greater than 2.Therefore, contrast quick formula gas heater, the application of this combustion system in volumetric gas water heater is very big progress.
Contrast unsealed partly-premixed combustion system, the advantage of said system is: excess air coefficient reduces by 40%, and the CO discharging also has reduction significantly.Under the approaching situation of water tank capacity, the said system input power can reach 30kw, and the non-airtight partly-premixed combustion system of tradition generally has only 20kw.Higher input power has been guaranteed the recovery time of water heater, and the possibility of big yield water is provided for the user.Perhaps under approaching water supply capacity, dwindle the volume of water heater, enlarged the scope of application of volumetric gas water heater.
Contrast full premix combustion system, the advantage of said system is: security is better, and cost has reduced more than 50%.Following table has shown the contrast of an exemplary operation parameter and common displacement type water heater, quick formula water heater and the full premix combustion system of present embodiment.The result shows that the utility model can reach the full premix combustion system level on combustion efficiency, contrast common quick formula water heater and common displacement type water heater and all be greatly improved.
Fig. 8 has shown the heat production outlet capacity contrast of present embodiment and corresponding product.With present embodiment input load 26kw, discharge 10L/min, volume 80L are benchmark, contrast quick machine (output 13L/min under the 25 degree temperature conditions) and 80L capacity of an input load 26kw, the displacement type water heater of input power 20kw.The ABCD line is the curve that discharges water of traditional 80L volume water heater among the figure, and this water heater can discharge water 8 minutes with the flow of 10L/min, and 40 ℃ of hot water temperature rises continue to discharge water with 25 ℃ of temperature rises then; The ABEFG line is the curve that discharges water of the present embodiment of capacity 80L, and this water heater discharged water 10 minutes with the flow of 10L/min earlier, can continue to discharge water with 36 ℃ of temperature rises then, promptly was similar to a fast water heater; The HI line is the curve that discharges water of one 13 liters of quick machines, and it can only continue to discharge water with 32.5 ℃ of temperature rises, and the difference in height of line FG and line HI is that the efficiency variance by present embodiment and the quick machine of described 13L causes.As seen from the figure, present embodiment contrasts the volumetric gas water heater of suitable capacity and the fast water heater of the suitable input power of contrast all has superiority, and combines displacement type water heater storage tank and the quick powerful advantage of formula water heater, has clear superiority.
Embodiment two
Figure 5 shows that embodiment two of the present utility model, its basic structure is identical with embodiment one, and air outlet 22 is communicated with burner 3 by first air-supply passage 23, is communicated with combustion chamber 41 by second air-supply passage 24 simultaneously; Combustion heat-exchange pipeline 4 at least a portion are arranged in water tank, one end is communicated with the outlet of burner 3, difference is: the other end of combustion heat-exchange pipeline 4 is communicated with the air inlet 25 of blower fan 2, constitute the totally-enclosed passage of air outlet 22 to fan outlet 21, the air outlet 21 of blower fan 2 communicates with atmosphere.Because blower fan 2 places after the combustion heat-exchange pipeline 4, causes the internal system negative pressure during work, air is inhaled into from air outlet 22, and flue gas then is discharged from from the air outlet 21 of blower fan 2.This negative pressure structure has further improved the security of system, prevents that harmful smoke from entering the inoperative zone of burner.
Embodiment three
Figure 6 shows that the combustion system schematic diagram of the utility model embodiment three.Present embodiment remainder except that combustion system is identical with embodiment one, does not give unnecessary details in addition.This combustion system adopts cylindrical burner 3.This embodiment is a little, the structure of burner 3 is simpler than the harmonica-type fire row burner of embodiment one, and system only needs a burner, and burner length can change with payload, increase the length of burner when load increases, the length that increases corresponding combustion chamber simultaneously gets final product.Fuel gas pipeline 26 is positioned at burner 3 front ends, and outlet is positioned on the center line of burner 3, along the center line of burner 3 combustion gas is sprayed into.
Embodiment four
Figure 7 shows that embodiment four of the present utility model, its basic structure is identical in essence with embodiment one, and its combustion system can be referring to Fig. 2, Fig. 3.The air inlet 25 of blower fan 2 links to each other with atmosphere, and air outlet 21 is picked air port 22; Air outlet 22 is communicated with burner 3 by first air-supply passage 23, is communicated with combustion chamber 41 by second air-supply passage 24 simultaneously, and second air-supply passage originates in secondary aerofoil 242, is communicated with the combustion chamber by the gap 241 between the burner fire row; Combustion heat-exchange pipeline 4 is arranged in water tank 1, one end and is communicated with the outlet of burner 3, and the other end communicates with atmosphere.Its special feature is that combustion heat-exchange pipeline 4 is made up of the combustion chamber 41 and the heat exchanging pipe 42 of horizontal setting, and wherein heat exchanging pipe 42 constitutes by being responsible for and being communicated with the Z type bend pipe of being responsible for.Present embodiment is because water tank 1 horizontal positioned, so also horizontal positioned thereupon of remaining part.The advantage of this embodiment is that the structure of horizontal positioned is pressed close to small apartment user's use habit very much, and water heater can be hung on the wall, and installing space is saved greatly.
In addition to the implementation, the utility model can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the claimed scope of the utility model.
Claims (9)
1. a volumetric gas water heater comprises water tank, blower fan, burner, combustion heat-exchange pipeline; It is characterized in that: the air inlet of described blower fan communicates with atmosphere, and air outlet is picked the air port; Described air outlet is communicated with described burner by first air-supply passage, is communicated with the combustion chamber by second air-supply passage simultaneously, constitutes the totally-enclosed passage of air inlet to the combustion heat-exchange pipeline; Described combustion heat-exchange pipeline at least a portion is arranged in water tank, and an end is communicated with the outlet of burner, and the other end communicates with atmosphere.
2. a volumetric gas water heater comprises water tank, blower fan, burner, combustion heat-exchange pipeline; It is characterized in that: air outlet is communicated with described burner by first air-supply passage, is communicated with the combustion chamber by second air-supply passage simultaneously; Described combustion heat-exchange pipeline at least a portion is arranged in water tank, and an end is communicated with the outlet of burner, and the other end is communicated with the air inlet of described blower fan, constitutes the totally-enclosed passage of air outlet to fan outlet; The air outlet of described blower fan communicates with atmosphere.
3. volumetric gas water heater according to claim 1 and 2 is characterized in that: described combustion heat-exchange pipeline is made of combustion chamber and heat exchanging pipe, and described burner connects heat exchanging pipe by the combustion chamber, and described heat exchanging pipe is arranged in water tank.
4. volumetric gas water heater according to claim 3 is characterized in that: described burner is made up of one group of harmonica-type fire row.
5. volumetric gas water heater according to claim 3 is characterized in that: described burner is the drum type brake burner.
6. volumetric gas water heater according to claim 4 is characterized in that: described second air-supply passage originates in the secondary aerofoil between air inlet and combustion chamber, is communicated with the combustion chamber by the gap between the burner fire row.
7. volumetric gas water heater according to claim 6 is characterized in that: described heat exchanging pipe constitutes by the person in charge at middle part and connection and around the helix tube of being responsible for, and described combustion chamber is communicated with the person in charge by the undergauge Taper Pipe.
8. volumetric gas water heater according to claim 7 is characterized in that: described heat exchanging pipe constitutes by being responsible for and being communicated with the Z type bend pipe of being responsible for.
9. volumetric gas water heater according to claim 5 is characterized in that: in the described burner, fuel gas pipeline is positioned at the burner front end, and outlet is positioned on the center line of burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440241U CN201488223U (en) | 2009-06-16 | 2009-06-16 | Volume-type gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440241U CN201488223U (en) | 2009-06-16 | 2009-06-16 | Volume-type gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488223U true CN201488223U (en) | 2010-05-26 |
Family
ID=42427100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200440241U Expired - Lifetime CN201488223U (en) | 2009-06-16 | 2009-06-16 | Volume-type gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488223U (en) |
-
2009
- 2009-06-16 CN CN2009200440241U patent/CN201488223U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101571315B (en) | Volumetric gas water heater | |
| CN101655239B (en) | Ceramic high-efficiency air self-preheating type combustor | |
| CN101338894A (en) | Low-calorie fuel dual prewarming and thermal storage type energy-saving boiler | |
| CN105333449B (en) | Low-carbon type smoke backflow formula steam boiler low oxygen combustion system | |
| CN102759130A (en) | Waste heat recovering efficient gas stove | |
| CN212274265U (en) | Low-nitrogen condensation wall-mounted furnace | |
| CN207716416U (en) | The continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| CN211261292U (en) | Novel full premix heat exchanger | |
| CN204853567U (en) | Realize residual heat from flue gas's commercial gas -cooker | |
| CN201488223U (en) | Volume-type gas water heater | |
| CN210345898U (en) | Full-condensation ultralow-nitrogen horizontal hot water boiler | |
| WO2022096021A1 (en) | Burner and applications thereof | |
| CN109631038A (en) | A kind of gas burner in water heater | |
| CN106766172A (en) | A kind of efficient energy-saving gas heating wall-hanging furnace | |
| CN212273985U (en) | Self-preheating low-nitrogen combustor | |
| CN210373419U (en) | Ultralow nitrogen emission electromechanical integration gas vacuum boiler | |
| CN209147148U (en) | Counter-combustion coal stove and its device for reducing tar generation | |
| CN210486040U (en) | Combustion heat exchange equipment | |
| CN209977990U (en) | Low-nitrogen full-premixing steam boiler | |
| CN205807843U (en) | A kind of high temperature pre-mixing gas combustion heat carrier furnace | |
| CN110530021A (en) | A kind of pre-heated burning coil condensation heat exchanger | |
| CN114413478B (en) | Condensing type household gas water heater suitable for pure hydrogen source | |
| CN211876366U (en) | Direct-fired hot water generator | |
| CN211119966U (en) | Gas water heating equipment capable of providing sectional combustion | |
| CN218095946U (en) | Gas-powder multi-medium coupling and decoupling combustion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090616 |