CN2201611Y - Gravity thermal tube radiation fast fuel gas water heater - Google Patents
Gravity thermal tube radiation fast fuel gas water heater Download PDFInfo
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- CN2201611Y CN2201611Y CN 93238104 CN93238104U CN2201611Y CN 2201611 Y CN2201611 Y CN 2201611Y CN 93238104 CN93238104 CN 93238104 CN 93238104 U CN93238104 U CN 93238104U CN 2201611 Y CN2201611 Y CN 2201611Y
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Abstract
The utility model discloses a radiative fast gas water heater with gravity water heating tubes, which is an efficient energy-saving fast gas water heater belonging to the water heater field. The heat transfer parts of the utility model are arranged in a closed casing after heat insulation treatment. A water chamber (20), a black body tube (5), a fume-flame tube (6) and annular ribs (3) are arranged above the soleplate (4) of the water chamber in the casing, a burning radiative chamber (19), coiled water wall tubes (7) and a straight ribbed plate (2) are arranged below the soleplate (4) of the water chamber, a gravity water heating tube (1) is arranged in the middle, and a radiator (18) is arranged on the bottom of the casing. Far-infrared radiation is used for heat transfer with heat efficiency as high as more than 92% and exhaust gas temperature of 60-80 DEG C.
Description
The utility model is subordinated to the gas heater in the domestic gas apparatus.
Prior art scheme gas heater is made up of single flow (Fig. 2) and positive displacement (Fig. 3) two big classes.They are all with formula: Q
Right=K ［ T
1-T
2 1.25Adopting convection heat transfer' heat-transfer by convection for design considerations is that the primary radiation heat transfer is the heat transfer type of assisting.
There is following defective in the gas heater heat transfer type of prior art scheme: do not have the little dual-use function of the fast fluctuating temperature of temperature rise concurrently; No low water level siphon destructive protection and the protection of audible alarm over-temp and over-pressure; Surface of shell does not have the insulation heat insulation layer; Combustion gas and fully mixed combustion of air when the burning of flame naked light is arranged; Fuel gas buring high temperature causes metal short service life in the Convective Heat Transfer that with the air is heat transfer medium, and the heat loss of smoke evacuation and surface of shell is big, and heat utilization efficiency is low.Its thermal efficiency generally only is about 70%.
The purpose of the utility model (Fig. 1) water heater is with Stefan-Boltzman's law: Q
Spoke=ε 0 ［ T
1 4-T
2 4For according to provide a kind of be that main convection heat transfer' heat-transfer by convection is auxilliary with radiant heat transfer, safe and reliable, the thermal efficiency up to the utility model more than 92% (Fig. 1) thus to overcome in prior art (Fig. 2), (Fig. 3) water heater with the convection heat transfer' heat-transfer by convection be that primary radiation conducts heat be to assist to be brought to bulk water heat pipe radiant type fast gas heater: do not have the little dual-use function of the fast fluctuating temperature of temperature rise concurrently; No low water level siphon destructive protection and the protection of audible alarm over-temp and over-pressure; Surface of shell does not have the insulation heat insulation layer; Combustion gas and fully mixed combustion of air when the burning of flame naked light is arranged; Defectives such as the metal that fuel gas buring high temperature causes in the Convective Heat Transfer that with the air is heat transfer medium is short service life, and smoke evacuation and surface of shell heat loss are big, and heat utilization efficiency is low.
The purpose of the utility model water heater is achieved in that
The utility model (Fig. 1) water heater is made up of following five systems
1, control system: by gas valve, igniter, flame-out protection device, water cut-off protection device, (above part diagram 1 is omitted); Audible alarm over-temp and over-pressure blast pipe (11), the low water level siphon protective device that has hot water valve (23) siphon hot-water line (10) is formed.
2, heating system: by far infrared ray radiator (18), burning radiation chamber (19), bulk water heat pipe (1) and invest the straight floor (2) of ring fin (3) on the bulk water heat pipe (1), snakelike water screen tube (7), pyrotechnics pipe (6), black matrix pipe (5), hydroecium base plate (4), hydroecium (20) is formed.
3, smoke evacuation system: by pyrotechnics pipe (6), chimney (22), U type flue gas condensing water pipe (26) is formed.
4, water circuit system: by cold valves (24), snakelike water screen tube (7), hydroecium (20), siphon hot-water line (10), hot water valve (23) is formed.
5, adiabatic heat-insulation system: by along burning radiation locular wall (8), hydroecium wall (12), far infrared ray radiator wall (13), the whole water heater housing of hydroecium lamina tecti (21) outside wall surface constitutes after with thermal insulating warm-keeping layer (9) insulation.
The utility model (Fig. 1) water heater is formed: be by closure casing and the heat transfer component that is loaded on wherein after handling with thermal insulating warm-keeping layer (9) along burning radiation locular wall (8) hydroecium wall (12) far infrared ray radiator wall (13) hydroecium lamina tecti (21) outer wall: bulk water heat pipe (1), straight floor (2), ring fin (3), hydroecium base plate (4), black matrix pipe (5), pyrotechnics pipe (6), snakelike water screen tube (7), siphon hot-water line (10), combustion gas uniform board (14), OCr
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5Radiation net (15) (or ceramic wafer add far-infrared paint make), low-pressure fuel gas injector jet pipe (16), high temperature resistant gasket ring (17), far infrared ray radiator (18), burning radiation chamber (19), the associate member on hydroecium (20) and the housing: audible alarm over-temp and over-pressure blast pipe (11), chimney (22), hot water valve (23), cold valves (24), flue gas condensing water pipe formations such as (26).
The utility model (Fig. 1) water heater mutual alignment relation and annexation are:
This water heater housing is divided into upper, middle and lower three partly.The housing upper part surrounds sealing hydroecium (20) by top of the hydroecium base plate (4) in the housing and hydroecium wall (12) hydroecium lamina tecti (21).Audible alarm over-temp and over-pressure blast pipe (11) and chimney (22) are housed on the hydroecium lamina tecti (21), the siphon hot-water line (10) of band hot water valve (23) is housed on the hydroecium wall (12).In the hydroecium (20): " black matrix pipe (5) the pyrotechnics pipe (6) of alternate layout is housed around the edge above the hydroecium base plate (4); The upper end (condensation segment) of bulk water heat pipe (1) with ring fin (3) is housed in the middle of the hydroecium (20); Bulk water heat pipe (1) stage casing (adiabatic section) is connected with hydroecium base plate (4) middle part.”
Partly the burning radiation chamber (19) that surrounds by hydroecium base plate (4) below and burning radiation locular wall (8) in the housing.Bulk water heat pipe (1) is with the lower end (evaporator section) of straight floor (2), device is in the burning radiation chamber (19) of hydroecium base plate (4) below, the delivery port of snakelike water screen tube (7) is connected with hydroecium base plate (4) below, snakelike water screen tube (7) is coiled in burning radiation locular wall (8) all around on the inwall, also offers snakelike water screen tube (7) water inlet pipe installing hole and flame hagioscope on the burning radiation locular wall (8).
The far infrared ray radiator (18) that below, burning radiation chamber (19) connects is lower part of frame part.On the far infrared ray radiator (18) that surrounds by far infrared ray radiator wall (13) low-pressure fuel gas injector jet pipe (16) is housed, U type flue gas condensing water pipe (26) is equipped with in the bottom, inner chamber is equipped with combustion gas uniform board (14), and chamber, the end is the even mixing chamber of combustion gas-air that is surrounded by radiation wall (13).The double-deck resistant to elevated temperatures OCr that far infrared ray radiator (18) head that is connected with burning radiation chamber (19) below has high temperature resistant gasket ring (17) to separate
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5Radiation net (15) (or ceramic wafer add far-infrared paint make).
Its architectural feature of the utility model (Fig. 1) water heater:
1, low-pressure injection formula far infrared ray radiator (18) sends high temperature far-infrared radiation heat by the bulk water heat pipe (1) with straight floor (2) ring fin (3), hydroecium base plate (4), snakelike water screen tube (7), black matrix pipe (5), pyrotechnics pipe (6) conducts heat.
2, far infrared ray radiator (18) is by low-pressure fuel gas injector jet pipe (16), and the even mixing chamber of combustion gas-air (far infrared ray radiator (18) chamber, the end) combustion gas uniform board (14) far-infrared radiation net (15) is formed.Far-infrared radiation net (15) is by resistant to elevated temperatures OCr
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5It is the heater element that sends far-infrared radiation heat that resistance wire is handled the double-deck layout in back (or add far-infrared paint with ceramic wafer make) through the far-infrared paint coating.
3, bulk water heat pipe (1), bulk water heat pipe (1) lower end (evaporator section) are to transmit photothermal main element with straight floor (2), bulk water heat pipe (1) upper end (condensation segment) of band heat transfer saddle with the ring fin (3) of band heat transfer saddle, and all available each metalloid of this three part is made.
4, hydroecium base plate (4) forms with the heat-resisting cast iron casting, is to transmit photothermal auxiliary element.
5, snakelike water screen tube (7) is that closely to be coiled to form along the spiral inner wall of burning radiation locular wall (8) by metal tube be to transmit photothermal auxiliary element.
6, black matrix pipe (5) forms with the casting of hydroecium base plate (4) consubstantiality, is to transmit photothermal auxiliary element.
7, pyrotechnics pipe (6) forms with the casting of hydroecium base plate (4) consubstantiality, is to transmit advection heat and photothermal auxiliary element.
The utility model (Fig. 1) water heater working principle is: the thermal source of this water heater is provided by low pressure type far infrared ray radiator (18) flameless combustion by combustion gas (25).Combustion gas (25) the burning required air of gas nozzle ejection, all can introduce by combustion gas injector jet pipe (16) back air intake opening by the speed of low-pressure fuel gas (25), air and combustion gas (25) are in injector jet pipe (16) the high speed premixed of scaling type, (excess air coefficient α=1.03-1.06) at last chamber, end combustion gas-air of far infrared ray radiator (18) bottom φ 300 all mix indoor further evenly mix after, be evenly distributed to double-deck OCr after the far-infrared paint coating is handled by combustion gas uniform board (14)
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5Flameless combustion between stratum reticulare in the radiation net (15).Its radiation temperature is 850-900 ℃, radiance ε=0.9-0.96.
The OCr of far infrared ray radiator (18)
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5Combustion gas in the radiation net (15)-air mixture flameless combustion is sent radiations heat energy by in the burning radiation chamber (19), arrange snakelike water screen tube (7) heating surface that spiral closely is coiled to form along burning radiation locular wall (8) inwall, straight floor (2) heating surface that bulk water heat pipe (1) lower end of intermediate arrangement has, hydroecium base plate (4) heating surface, black matrix pipe (5) heating surface on the hydroecium base plate (4), pyrotechnics pipe (6) heating surface on the hydroecium plate (4) carries out heat exchange.Gas fume after burning is discharged outdoor by radiation chamber (19) to pyrotechnics pipe (6) at last by chimney (22).Radiant heat exchange is 85.8% in this heat exchanging process, and convective heat exchange is 6.1%, and heat loss due to exhaust gas is 1.2-1.7%.
The process of this water heater heating cold water is: cold water enters water heater by cold valves (24) and flows through snakelike water screen tube (7) and tentatively heat the back and flow into hydroecium (20), through the water after the preliminary heating in hydroecium (20) by hydroecium base plate (4), black matrix pipe (5) and pyrotechnics pipe (6) above the hydroecium base plate (4), the attached ring fin (3) that has in bulk water heat pipe (1) upper end is heated as the hot water of design code temperature.The hot water that reaches the design code temperature is drawn water heater by siphon hot-water line (10) through hot water valve (23).After cold water entered water heater, the φ 10 aluminium-alloy pipe coiled external diameters of flowing through were the equal diameter of φ 300, and height is 150 the tight coiling of spiral snakelike water screen tube (7), tentatively heats.Water flows in pipe and is turbulent flow reynolds number Re＞10000, coefficient of heat transfer α=5186 kilocalorie/rice
2Hour ℃, the heat exchange amount be 5132 kilocalories/hour, snakelike water screen tube (7) is accepted combustion gas-air mixture and is being scribbled the OCr of far-infrared paint
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5The far-infrared radiation heat that flameless combustion is emitted in the radiation net (15) is 1532 kilocalories/hour (heat that water is taken away in the pipe make greater than the heat, the metal that are radiated on the snakelike water screen tube (7) snakelike water screen tube (7) can be not overheated), and this process water is heated to 7 ℃ by 0 ℃.
Flow in the hydroecium (20) heat-resisting cast iron hydroecium base plate (4) with φ 300 through preliminarily heated water, 4 φ 25 height of projection are 100 heat-resisting cast iron black matrix pipe (5) above the heat-resisting cast iron hydroecium base plate (4), bulk water heat pipe (1) that metal is made upper end is with 12 φ, the 240 aluminium ring fins (3) of band aluminium saddle, and 4 φ 25 height are that 300 heat-resisting cast iron pyrotechnics pipe (6) carries out last heat exchange.Water and heat-resisting cast iron hydroecium base plate (4) in this process, the heat-resisting cast iron black matrix pipe (5) of projection above the heat-resisting cast iron hydroecium base plate (4), the heat transfer free convection amount be 3605 kilocalories/hour.Heat-resisting cast iron hydroecium base plate (4) and heat-resisting cast iron hydroecium base plate (4) are gone up the heat-transfer area in heat-resisting cast iron black matrix pipe (5) shrinkage pool, are subjected to combustion gas-air mixture scribbling the OCr of far-infrared paint
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5The far-infrared radiation heat that flameless combustion is emitted in the radiation net (15) be 3428 kilocalories/hour; Bulk water heat pipe (1) that water and metal are made upper end with aluminium ring fin (3) the heat transfer free convection amount of band saddle be 37554 kilocalories/hour, bulk water heat pipe (1) the internal work WATER AS FLOW MEDIUM condensation heat that metal is made exchange heat on the aluminium ring fin of having to bulk water heat pipe (1) upper end (3) be 6615.5 kilocalories/hour, 22 straight floors of heat-resisting cast iron (2) decision on the heat-resisting cast iron saddle that bulk water heat pipe (1) lower end that the heat output of the bulk water heat pipe (1) that metal is made is only made by metal has, the 22 straight floors of heat-resisting cast iron (2) on bulk water heat pipe (1) the lower end heat-resisting cast iron saddle that metal is made accept to scribble the OCr of far-infrared paint
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5The far-infrared radiation heat that combustion gas-the air mixture flameless combustion is emitted in the radiation net (15) be 6011.56 kilocalories/hour; Water and heat-resisting cast iron pyrotechnics pipe (6) heat transfer free convection amount be 2219.5 kilocalories/hour, flue gas and heat-resisting cast iron pyrotechnics pipe (6) heat convection amount and radiation heat transfer amount be 600 kilocalories/hour.
In last heat exchanging process, water in the hydroecium (20) mainly independently carries out heat exchange (in each independent heat transfer process with mode and each heat-transfer surface of free convection, the heat that water free convection in the hydroecium (20) is taken away all is delivered to heat on each heating surface greater than radiation and convection current, each heating surface can be not overheated) by this heat exchanging process, water temperature is heated to 40 ℃ from 7 ℃.
The whole heat exchanging process of this water heater is to carry out through being incubated in the closure casing after heat insulation layer (9) is handled at one.
This water heater adopts the piezoelectric ceramics igniting, establishes little fire kept burning day and night and flame hagioscope in burning radiation chamber (19).
This water heater adopts hydrolock U type flue gas condensing water pipe (26), and (the steam condensation dew point drainage arrangement in the discharging low-temperature flue gas) also adopts chimney (22) flue gas to be discharged outdoor.
The safety device that this water heater adopts has: differential water film valve water cut-off protection, bimetallic garden disc type blowout protection, hydroecium over-temp and over-pressure exhaust sound alarm and protection, the protection of low water level siphon destructive.
The far-infrared radiation heat energy of the utility model water heater relies on bulk water heat pipe (1), straight floor in bulk water heat pipe (1) bottom (2) and top loop fin (3), hydroecium base plate (4), black matrix pipe (5) on the hydroecium base plate (4) and pyrotechnics pipe (6), snakelike water screen tube (7) successfully with thermal energy transfer in water.
The utility model water heater has following advantage:
With the radiation heat transfer is main by bulk water heat pipe (1), adopts radiation heating-surface in a large number: snakelike water screen tube (7), heat-resisting cast iron hydroecium base plate (4), black matrix pipe (5), pyrotechnics pipe (6), the straight floor of heat-resisting cast iron (2).
The advanced technology that adopts has: the energy-efficient far infrared ray radiator of low-pressure fuel gas (25) injection atmosphere (18), spiral closely coil snakelike water screen tube (7) heating surface, the double-deck OCr that the far-infrared paint coating is handled
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5The efficient exothermic technology of radiation net (15) flameless combustion, novel heat conducting element bulk water heat pipe (1) technology, straight floor (2) and ring fin (3) heat-transfer area rib efficient heat transfer technology.
The utility model (Fig. 1) water heater also has safe in utilizationly except the repertoire that has single flow automatic water heater (Fig. 2) and displacement type water heater (Fig. 3) concurrently, and cost easy to process is low, long service life, quick heating, fluctuating temperature is little, thermal efficiency height, characteristics such as exhaust gas temperature is low.
The utility model (Fig. 1) water heater burning radiation chamber (19) adopts snakelike water screen tube (7) to arrange that the wall temperature and the water temperature in the snakelike water screen tube (7) of after-combustion radiation locular wall (8) are approaching all around, hydroecium wall (12) and far infrared ray radiator wall (13) are little with the extraneous temperature difference, are easy to adopt thermal insulating warm-keeping layer (9) to handle.Outer wall radiation loss after the processing is very little, only is the 3-6% of total heat duties.And existing water heater technical scheme (Fig. 2), (Fig. 3) outer wall temperature difference are very big, and insulation has certain difficulty, and radiation loss is the 7-35% of total heat duties.The utility model (Fig. 1) water heater is compared with existing gas heater (Fig. 2), (Fig. 3) and is reduced heat loss 4-29%.
The utility model (Fig. 1) water heater, adopting novel heat transfer element bulk water heat pipe (1) is main heat transfer element, bulk water heat pipe (1) heat transfer coefficient (λ) is 10 of a red copper
3-10
4Doubly.Add the hot water quick heating with it, the hot water temperature is stable, can obtain the hot water of designed temperature fast.Bulk water heat pipe (1) reaches 20-30 service life, and is safe and reliable, and existing gas heater (Fig. 2), (Fig. 3) heat transfer technology performance are all not as bulk water heat pipe (1).
The heat radiation that the utility model (Fig. 1) water heater adopts 900 ℃ far infrared flameless combustion to send does not need air as heat transfer medium, and existing gas heater technical scheme is all based on convection heat transfer' heat-transfer by convection, air will be heat transfer medium, the thermal conductivity factor of air is very little, thermal resistance is big, can't transmit same heat down at 900 ℃.
The utility model (Fig. 1) water heater adopts low-pressure fuel gas (25) injection atmospheric combustion can make combustion gas and air to scale in de Laval noz(zle) (16) high speed premixed, is all mixed the indoor back of evenly mixing once more by injection to far infrared ray radiator (18) lower cavity combustion gas-air and be evenly distributed to double-deck OCr by combustion gas uniform board (14) after premixed
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5Nonflame fully burns in the radiation net (15).And existing gas heater technical scheme (Fig. 2), (Fig. 3) heat transfer type is the tubular type diffusion burner that the burning of flame naked light is arranged, and required air is by supplying with in the combustion process, and the defective of this prior art is impossible make the abundant mixed combustion of combustion gas and air.
The utility model (Fig. 1) water heater exothermic process can be reduced to 60-80 ℃ low exhaust gas temperature by heat exchange with the far-infrared radiation heat about 900 ℃, and heating process can be with cold water by 0 ℃ of hot water temperature who is heated to design code.
The utility model (Fig. 1) water heater heat transfer type is to be that main convection heat transfer' heat-transfer by convection is the heat transfer type of assisting with radiant heat transfer, the radiation heat transfer amount is 85.8% of a total heat duties, the heat convection amount is 6.1% of a total heat duties, the thermal efficiency reaches more than 92%, and heat loss due to exhaust gas is the 1.2-1.7% of total heat duties.And conduct heat in prior art scheme (Fig. 2) water heater is based on convection heat transfer' heat-transfer by convection, radiant heat transfer is the heat transfer type of assisting, the radiation heat transfer amount is 14% of a total heat duties, the heat convection amount is 56% of a total heat duties, the thermal efficiency is 70%, heat loss due to exhaust gas is the 7.6-10% of total heat duties, and the utility model (Fig. 1) water heater thermal efficiency ratio prior art scheme (Fig. 2) water heater thermal efficiency is high more than 22%.The utility model (Fig. 1) water heater heat transfer type meets Stefan-Boltzman's law:
Q
Spoke=ε 0 ［ T
1 4-T
2 4
And the equal coincidence formula of the heat transfer type of prior art scheme (Fig. 2), (Fig. 3) water heater:
Q
Right=K ［ T
1-T
2 1.25
From above two formula as can be seen the radiant heat transfer amount be directly proportional with the biquadratic of the temperature difference, and the convection heat transfer' heat-transfer by convection amount only is directly proportional with 1.25 powers of the temperature difference, Q under same temperature
Spoke＞＞Q
RightSo the utility model (Fig. 1) water heater heat transfer type is better than prior art scheme (Fig. 2), (Fig. 3) water heater heat transfer type.
Drawing explanation: Fig. 1 is according to the bulk water heat pipe radiant type fast gas heater main body profile that the utility model proposes,
Among the figure: 1. the bulk water heat pipe, 2. the straight floor in bulk water heat pipe bottom, 3. bulk water heat pipe top loop fin, 4. the hydroecium base plate, 5. the black matrix pipe, 6. the pyrotechnics pipe, 7. snakelike water screen tube, 8. the burning radiation locular wall, 9. thermal insulating warm-keeping layer, 10. siphon hot-water line, 11. audible alarm over-temp and over-pressure blast pipes, 12. hydroecium walls, 13. far infrared ray radiator walls, 14. combustion gas uniform boards, 15. scribble the OCr of far-infrared paint
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5Radiation net (or ceramic wafer add far-infrared paint make), 16. low-pressure fuel gas injector jet pipes, 17. high temperature resistant gasket rings, 18. far infrared ray radiators, burning radiation chambers 19., 20. hydroeciums, 21. hydroecium lamina tectis, 22. chimneys, 23. hot water valve, 24. cold valves, 25. combustion gas, 26. flue gas condensing water pipes.
Fig. 2 is a single flow automatic water heater structural representation,
Among the figure: 27. cold water, 28. hot water, 29. gas valves, 30. flue gases, 31. heat exchangers, 32. combustion chambers.
Fig. 3 is a displacement type water heater structural principle schematic diagram,
Among the figure: 33. water, 34. flues, 35. burners, 36. pots.
Describe concrete equipment and the working condition that proposes according to the utility model water heater in detail below in conjunction with (Fig. 1):
The utility model (Fig. 1) water heater is that control element combines by the metal shell after the insulation insulation and the heat transfer component and the external attached parts thereof that are loaded on wherein.
Its metal shell outer wall is by hydroecium wall (12), hydroecium lamina tecti (21), burning radiation locular wall (8), far infrared ray radiator wall (13) four partly constitutes, and this four partly adopts the flange composition surface to interconnect with bolt, between each flange composition surface by packing ring, hydroecium base plate (4), radiation net (15), high temperature resistant gasket ring (17) separates, metal shell outer wall glass and asbestos thermal insulating warm-keeping layer (9) insulation.
The utility model (Fig. 1) water heater can be divided into upper part by its its structural feature of heating characteristics, middle part and partly following.
Upper part is by hydroecium wall (12), hydroecium base plate (4), and the space that hydroecium lamina tecti (21) surrounds is hydroecium (20).The siphon hot-water line (10) that has hot water valve (23) (inverted U type pipe) that can keep safety level of the end in the hydroecium (20) is housed on the hydroecium wall (12), audible alarm over-temp and over-pressure blast pipe (11) and chimney (22) are housed on the hydroecium lamina tecti (21).In the hydroecium (20), alternate black matrix pipe (5) the pyrotechnics pipe of arranging (6) around the edge is housed on the hydroecium base plate (4), central space is furnished with the upper end of metal gravity hydro-thermal pipe (1) with aluminium ring fin (3).Bulk water heat pipe (1) is that the working-medium water of packing into is connected on the false boss above the hydroecium base plate (4) with nut after encapsulation process.Hydroecium base plate (4) and black matrix pipe (5) are with heat-resisting cast iron consubstantiality casting forming, pyrotechnics pipe (6) is with on the false boss of heat-resisting cast iron pipe second casting expanded joint on hydroecium base plate (4), hydroecium base plate (4) surrounding, top and bottom connects the lower flange composition surface of hydroecium wall (12) above it along the flange composition surface, connect the upper flange composition surface of burning radiation locular wall (8) below.
Middle partly by burning radiation locular wall (8), hydroecium base plate (4), the space that the radiation net (15) on the far infrared ray radiator (18) surrounds is burning radiation chamber (19).Be furnished with around burning radiation locular wall (8) inwall on the false boss of its effluent pipe mouth expanded joint of the snakelike water screen tube of metal (7) below hydroecium base plate (4) of the tight coiling of spiral, water inlet pipe is installed on burning radiation locular wall (8) installing hole.Middle part, interior space, burning radiation chamber (19) is furnished with the lower end of metal gravity hydro-thermal pipe (1) with the straight floor of heat-resisting cast iron (2).The burning radiation locular wall has the flame hagioscope on (8), and the upper flange composition surface of burning radiation locular wall (8) is connected with hydroecium base plate (4) lower flange composition surface, and the lower flange composition surface is connected with the upper flange composition surface of far infrared ray radiator wall (13).
Partly be far infrared ray radiator (18) down.The space that far infrared ray radiator wall (13) surrounds is the inner chamber of far infrared ray radiator (18), the pit of its bottom is equipped with the cast iron low-pressure fuel gas injector jet pipe (16) that interior dress gas nozzle is equipped with at U type flue gas condensing water pipe (26) inner chamber middle part, metal combustion gas uniform board (14) is equipped with in the inner chamber middle and upper part, and the double-deck OCr that coats far-infrared paint that separates with high temperature resistant gasket ring (17) is housed on the flange composition surface on the far infrared ray radiator wall (13)
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5Be connected with the lower flange composition surface of burning radiation locular wall (8) again behind the radiation net (15) (or add far-infrared paint make) with ceramic wafer.
In sum each type component according to given structure of the utility model (Fig. 1) water heater and mutual alignment composition of relations moulding thereof after equipped again tracheae, water pipe, pipe fitting, valve, piezoelectric ceramics igniter, differential water film valve, bimetallic garden disc type flame-out protection device, the acoustic alarm gone up, the utility model (Fig. 1) water heater just can come into operation.
The utility model (Fig. 1) water heater working principle and add the technical process of hot water and have related parameter to be:
When spraying the suction required air from nozzle, low-pressure fuel gas (25) after low-pressure fuel gas injector jet pipe (16) high speed premixed, enters all mixed indoor even mixing of far infrared ray radiator (18) chamber, end combustion gas-air.All (excess air coefficient α=1.03-1.06) flows to OCr to the flammable mixture of Hun Heing
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5Its radiation temperature of flameless combustion is 850-900 ℃ in the radiation net (15), radiance ε=0.9-0.96, the OCr of far infrared ray radiator (18)
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5The snakelike water screen tube (7) that radiation net (15) is arranged in burning radiation chamber (19), the straight floor in bulk water heat pipe (1) lower end (2), hydroecium base plate (4), black matrix pipe (5), pyrotechnics pipe (6) sends high temperature far-infrared radiation heat and advection heat, it is more than 92% of total heat duties (radiant heat is 85.8%, and advection heat is 6.1%) that its radiant heat and convective heat exchange are given the heat of cold water.
The process of this water heater heating cold water is: cold water enters water heater by cold valves (24) and flows through snakelike water screen tube (7) and tentatively heat the back and flow into hydroecium (20), through the water after the preliminary heating in hydroecium (20) by hydroecium base plate (4), black matrix pipe (5) and pyrotechnics pipe (6) above the hydroecium base plate (4), the ring fin (3) that bulk water heat pipe (1) upper end has is heated as the hot water of design code temperature.The hot water that reaches the design code temperature is drawn water heater by siphon hot-water line (10) through hot water valve (23).Water in the heat exchanging process in the snakelike water screen tube (7) is that the water in the turbulence state hydroecium (20) is the free convection state, working-medium water in the bulk water heat pipe (1) absorbs heat to top ring fin (3) heat release by the straight floor in lower end (2), and its duty is far smaller than velocity of sound limit and carries limit.
Gas fume after burning is discharged outdoor by chimney (22) through pyrotechnics pipe (6) by burning radiation chamber (19), exhaust gas temperature is a 60-80 ℃ of caused flue gas condensing water, is discharged by U type flue gas condensing water pipe (26).
Can make 0 ℃ cold water be heated to be the hot water of design code temperature through above heat exchanging process.
Claims (5)
1, a kind of bulk water heat pipe radiant type fast gas heater, it is characterized in that: heat transfer component is packed in the closure casing after handling with thermal insulating warm-keeping layer (9) along burning radiation locular wall (8) hydroecium wall (12) far infrared ray radiator wall (13) hydroecium lamina tecti (21) outside wall surface, on the housing, in two partly separate by hydroecium base plate (4), surround sealing hydroecium (20) with hydroecium wall (12) hydroecium lamina tecti (21) above the hydroecium base plate (4), black matrix pipe (5) the pyrotechnics pipe (6) of alternate layout all around along hydroecium wall (12) inwall is housed above the hydroecium base plate (4), hydroecium base plate (4) middle part is connected with bulk water heat pipe (1) stage casing (adiabatic section), on the bulk water heat pipe (1): " end of having ring fin (3) (condensation segment) is in the hydroecium (20) of hydroecium base plate (4) top; an end of having straight floor (2) (evaporator section) is in the burning radiation chamber (19) of hydroecium base plate (4) below ", the siphon hot-water line (10) of band hot water valve (23) is housed on the hydroecium wall (12), audible alarm over-temp and over-pressure blast pipe (11) and chimney (22) are housed on the hydroecium lamina tecti (21), surround burning radiation chamber (19) with burning radiation locular wall (8) below the hydroecium base plate (4), the delivery port of the snakelike water screen tube of arranging around burning radiation locular wall (8) inwall (7) is housed below the hydroecium base plate (4), the water inlet pipe installing port of snakelike water screen tube (7) is located on the burning radiation locular wall (8), burning radiation chamber (19) is connected the aphlogistic two-layer OCr that scribbles far-infrared paint of far infrared ray radiator (18) with following far infrared ray radiator (18) partly
25AL
5Radiation net (15) (or ceramic wafer add far-infrared paint make) is to separate with high temperature resistant gasket ring (17), low-pressure fuel gas injector jet pipe (16) bottom is housed on the far infrared ray radiator wall (13) of far infrared ray radiator (18) U type flue gas condensing water pipe (26) is housed, it is the even mixing chamber of combustion gas one air that is surrounded by far infrared ray radiator wall (13) that its chamber, end of combustion gas uniform board (14) is housed in far infrared ray radiator (18) inner chamber.
2, according to the described water heater of claim 1, it is characterized in that: metal snakelike water screen tube (7) is that spiral closely is coiled on burning radiation locular wall (8) inwall, its top of metal bulk water heat pipe (1) is arranged with metal ring fin (3) bottom and is arranged with metal radial straight floor (2), metal black matrix pipe (5) and pyrotechnics pipe (6) device are in hydroecium (20), and low-pressure fuel gas injector jet pipe (16) combines with far infrared ray radiator (18).
3, according to the described water heater of claim 1, it is characterized in that: low water level siphon protective device siphon hot-water line (10) is an inverted U type pipe.
4, according to the described water heater of claim 1, it is characterized in that: hydroecium base plate (4) is that heat-resisting cast iron is made.
5, according to the described water heater of claim 1, it is characterized in that: along housing (8), (12), (13), (21) outer wall integral heat insulation insulation is dress glass and asbestos in interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238104 CN2201611Y (en) | 1993-01-20 | 1993-01-20 | Gravity thermal tube radiation fast fuel gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238104 CN2201611Y (en) | 1993-01-20 | 1993-01-20 | Gravity thermal tube radiation fast fuel gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201611Y true CN2201611Y (en) | 1995-06-21 |
Family
ID=33812913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238104 Expired - Fee Related CN2201611Y (en) | 1993-01-20 | 1993-01-20 | Gravity thermal tube radiation fast fuel gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201611Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679537A (en) * | 2011-06-10 | 2012-09-19 | 王镇达 | Miniature vertical gas dual-purpose water heater |
-
1993
- 1993-01-20 CN CN 93238104 patent/CN2201611Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679537A (en) * | 2011-06-10 | 2012-09-19 | 王镇达 | Miniature vertical gas dual-purpose water heater |
| CN102679537B (en) * | 2011-06-10 | 2014-02-12 | 王镇达 | Miniature vertical gas dual-purpose water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |