CN2751257Y - Water-fire compatible hot water boiler - Google Patents
Water-fire compatible hot water boiler Download PDFInfo
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- CN2751257Y CN2751257Y CN 200420083285 CN200420083285U CN2751257Y CN 2751257 Y CN2751257 Y CN 2751257Y CN 200420083285 CN200420083285 CN 200420083285 CN 200420083285 U CN200420083285 U CN 200420083285U CN 2751257 Y CN2751257 Y CN 2751257Y
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Abstract
The utility model relates to a water-fire compatible hot water boiler which comprises a boiler body, wherein the outer wall of the boiler body is coated with a thermal insulation layer and a water inlet pipe and a water outlet pipe are arranged on the boiler body. A water pump, an outer water pipe and a control valve are arranged between the water inlet pipe and the water outlet pipe, the upper part of the boiler body is also provided with a chimney and a positive pressure blast burner and a gas passage are arranged in the boiler body. A water baffle is arranged above the burner, the gas passage comprises a path which penetrates through the water baffle and the inner space of the boiler body above the water baffle, and a water drop shower device is arranged in the gas passage and is a grid rod array and/or a perforated plate. A pipe opening of the water inlet pipe is arranged above the shower device, a hot water tank for collecting water drops is arranged under the burner and the pipe opening of the water outlet pipe is arranged under the hot water tank. The utility model provides a water-fire compatible hot water boiler with higher and more stable heat-transfer efficiency, no scale formation, simple structure and lighter weight of unit volume.
Description
[technical field]
The utility model relates to a kind of Thermal Equipment, and more particularly, the utility model relates to a kind of hot-water boiler.
[background technology]
Existing normal pressure fuel oil (gas) hot-water boiler generally includes a pot body, flue, burner and smoke pipe, also be provided with the water-in and water-out system on the pot body, the water that the water-in and water-out system will heat is transported on the heat-transfer area that is located on flue and the smoke pipe, the high-temperature flue gas generation heat exchange that produces with flue and smoke pipe inner burner is used thereby will heat wherein take out of.The heat-transfer area of conventional boiler is the tubular type of various structures, shape or board-like metal covering, high-temperature flue gas is isolated on the different both sides of metal heat transfer face with water, can not directly contact mutually, otherwise, perhaps flue gas is sharply lowered the temperature by a large amount of water sources, light then cause that efficiency of combustion is low, the problem of incomplete combustion, heavy then cause burner flame-out, end the result of burning; Perhaps high-temperature flue gas evaporates a small amount of water source rapidly, causes heated moisture content escape and can't collect utilization.Above-mentioned two kinds of results are the purposes that runs counter to design and build hot-water boiler, so that for a long time, and it negates the engineering feasibility of relevant water and flue gas direct contact heat transfer that people have got used to that proverb with " not mixing like water and fire " comes.
But because the heat transfer in the hot-water boiler of traditional type mainly relies on the solid heat transfer face to carry out, so that the heat exchange efficiency of the hot-water boiler of traditional type is lower, and the actual thermal efficiency is usually less than 90%; And in order to increase the heat transfer area of unit volume as much as possible, in shell, arranged a large amount of flues and smoke pipe heating surface usually, cause conventional boiler the body heaviness, move difficulty, steel consumption is big, cost is high; Wear being problematic in that of coming by solid heat transfer: the easy fouling of heat-transfer area, have to often safeguard in order to prevent fouling: or drop into water softener, or adopt water treatment measure such as deionization.However, still there are long-time running decrease in efficiency, boiler life a series of problems such as pressure-bearing hidden peril of explosion short, that caused by fouling in boiler.
For above-mentioned technical problem, Chinese patent file 99223332.1 disclosed a kind of novel wetting back-type oil-burning gas-fired boilers are arranged, form a water-jacket space between its outer wall of combustion chamber and inboard wall of furnace body, the bottom of combustion chamber is communicated with one time smoke-box, the bottom of returning smoke-box is the water back of the body case of a sealing, sealing is being communicated with a circle monowall tube between water back of the body case and the water-jacket space, the fin sidewall that is tightly connected is being fixed in welding between the monowall tube, returning smoke-box is communicated with many smoke exhaust pipes, the other end of smoke pipe is connected with upper smoke box, other has two smoke exhaust pipes, wherein one row two ends respectively with upper smoke box, lower smoke box is communicated with, another row's two ends respectively with lower smoke box, smoke exhaust pipe is communicated with, and each row smoke exhaust pipe all is positioned at the left side water-jacket space.It is said: this device had both kept dry-back boiler advantage simple in structure, easy to manufacture, and it is sealed easily to have wet-back boiler fire, cigarette again, and boiler is difficult for the advantage that burnt out, and the thermal efficiency of boiler is higher, can extensively promote the use of.But, the high-temperature flue gas of this device still mainly is that the water body in the water-jacket space that accumulates between inboard wall of furnace body carries out indirect heat transfer by outer wall of combustion chamber and smoke pipe, and heat-transfer mechanism and efficient difficulty have breakthrough, owing to repeatedly return cigarette, boiler body certainly will be heavy, and above-mentioned serial problem also is difficult to avoid.
The central heating unit that also has the full wet type structure that discloses a kind of fuel oil or combustion gas of Chinese patent file 98231389.6 in this regard.Be equipped with flue, back smoke box, two return smoke pipe, front smoke box, three backhaul smoke pipes, chimney, water inlet pipe, outlet pipe at square body inner chamber, in the body fuselage upper end breather pipe be housed and be communicated with the body inner chamber.It is said that this device has been created the full wet type structure, modern design, have compact conformation, to greatest extent increase heat exchange area, reduce the body surface temperature, improved advantage such as the thermal efficiency widely, be the ideal equipment of heat supply heating.Equally, the high-temperature flue gas of this device also mainly is that the water body in accumulating between the body inner chamber carries out indirect heat transfer by furnace wall and smoke pipe wall, and heat-transfer mechanism and efficient also are traditional approach, have aforesaid inherent shortcoming.
[summary of the invention]
At the above-mentioned shortcoming of prior art, the technical purpose that the utility model will reach be to provide a kind of heat transfer efficiency higher more stable, do not have scale problems, simple in structure, a fire compatible formula hot-water boiler that bulk density is lighter.
For this reason, the technical solution of the utility model is a kind of fire compatible formula hot-water boiler, this hot-water boiler comprises a pot body (being the what is called " boiler body " of metal material), on the external wall of pot, be laid with thermal insulation layer, be equiped with water inlet pipe on the pot body, outlet pipe, between water inlet pipe and outlet pipe, be provided with water pump, outer water tube and by-pass valve control, top at the pot body also is equiped with chimney, in the pot body, be provided with the burner and the exhaust gases passes of malleation air blast, and the burner top is provided with water fender, exhaust gases passes comprises the pot nside space of the passage that passes through water fender and water fender top, be provided with water droplet gondola water faucet device in this exhaust gases passes, this gondola water faucet device is grid bar array and/or porous plate; The mouth of pipe of water inlet pipe is arranged on the top of described gondola water faucet device, and the burner below is provided with the boiler that compiles water droplet, and the mouth of pipe of outlet pipe is arranged on the bottom of boiler.The basic structure shortcoming that exists at the conventional boiler technology: can not directly contact between high-temperature flue gas and hydrophily body and need conduct heat by the intermediary of solid heat transfer face, the structure of brand new ideas that adopted the utility model boiler realizes the heat transfer type between high-temperature flue gas and hydrophily body, it has cancelled the flue of solid wall surface, there is not smoke pipe yet, do not need intermediary by the solid heat transfer face, carry out heat exchange but rely on water directly to contact with flue gas, consequent in order to overcome " not mixing like water and fire " practical difficulty, the utility model is patent, develop a new style, the water fender that adopts the burner top to be provided with stops that the whereabouts water droplet directly enters the flame kernel of burner, thereby has avoided the strong antgonistic action between the extreme misery to take place; Simultaneously, in exhaust gases passes, adopt water droplet gondola water faucet device that the hydrophily body of agglomerate is partitioned into decrease speed and flow suitably and the water droplet of homogeneous and controllable and form the water droplet field that falls, drop size in water droplet falls the field is moderate, neither can be taken out of with flue gas by a large amount of evaporations of high temperature, can be too not fast because of falling yet, particle diameter is too big and insufficient heat transfer efficiency that causes that is heated is not good, like this, be of moderate size, a uniform water droplet that falls is being done in direct contact of reverse flow with high-temperature flue gas, can produce very big dynamic heat transfer specific area, thereby make heat transfer efficiency increase greatly, can not form excessive resistance for high-temperature flue gas yet, can guarantee burning and conduct heat all to be able to fully stable carrying out.And, because the utility model makes water droplet waterfall directly contact high-temperature flue gas, can absorb the condensation latent heat of the steam in the flue gas, thereby greatly reduce exhaust gas temperature, obtain the hydrophily body of high enthalpy through the collection that is located at pot boiler of body bottom and outlet pipe.Through experiment confirm, the thermal efficiency of the present utility model can be up to more than 98%, and start back programming rate is very fast; Because saved solid heating surfaces such as flue and/or smoke pipe, the weight of boiler of the present utility model has only 1/3～1/6 of same size hot-water boiler again; And, the scale problems that does not have the solid heating surface to produce, the long-term service efficiency of boiler can not descend, and need not water treatment operation and equipment, maintenance work and cost have been simplified greatly, the more important thing is,, belong to the heating equipment of open type operation because high-temperature flue gas is direct and cold water medium transmission of heat by contact, can build pressure at pot nside, eliminated the hidden danger of pressure-bearing blast fully, property safe and reliable to operation increases greatly, and the useful life expection of the utility model boiler was 20～30 years.And through experimental results show that: if adopt the import burner with high efficiency, exhaust gas discharging is lower than 2～4 times of national standards; The direct-fired hot water of flue gas is through the water standard of check character symphysis sanitary water alive.If adopt the plate type heat exchanger of external pressure-bearing 1.0Mpa, can guarantee water cleaning, reach the standard of skyscraper heating and heat supply water.And simple in structure, be beneficial to the manufacturing.
For further strengthening above-mentioned principal advantages of the present utility model, the utility model is taked following concrete corrective measure:
In order to increase the uniformity of water droplet flow distribution in the field that falls, gondola water faucet device of the present utility model is two layers or more sandwich construction.Concrete structure is: the gondola water faucet device comprises the porous plate and the horizontal grid bar array of installing thereunder of the superiors; The chimney opening is located at below the described porous plate and more than the grid bar array.Like this, at first adopt porous plate tentatively to be partitioned into the whereabouts trickle for big strand of solid stream of water, utilize the grid bar array that the whereabouts trickle is further cut apart again and form the water droplet the fill the air field that falls, and the chimney opening is located at the low flue gas resistance that can utilize the grid bar array below the porous plate, make that smoke evacuation is smooth and easy, it is combustion powered to save, and the foam of high temperature can be caught by area porous plate big, that temperature is lower in the flue gas, makes the heat absorption rate be improved.
In order to increase the water droplet that fills the air in vertical direction the distributing homogeneity of field that falls, many described grid bars on sustained height are arranged in parallel and constitute individual layer grid bar array, and many grid bars on the differing heights are arranged in parallel and constitute the multi-layer gate bar array; Self stagger between the contiguous grid bar on the adjacent layer; Grid bar on the adjacent layer can also accompany certain angle mutually in addition.
In order to reduce the resistance that flue gas rises, the specific area that increases the water droplet of the direct heat exchange of adverse current, grid bar of the present utility model be flat surface to upper side, it is convex surface down to downside.Consider processing cost and easily manufactured, in preferred embodiment, described grid bar be wedge angle angle steel surface down to downside, described grid bar be the cover plate that covers the angle steel notch to upper side.
As some mounting structures because of material suiting measures to different conditions, water fender of the present utility model is positioned at directly over the exhanst gas outlet of burner and has arc arch shape curved surface covering structure, is provided with the flue gap between described water fender and described internal wall pot body; The level that is oriented of the exhanst gas outlet of described burner or upwards.
The burner that the utility model is suitable for be oil burner, gas burner, coal gasification burner one of them.
In preferred embodiment of the present utility model, water inlet pipe, gondola water faucet device, boiler, outlet pipe, by-pass valve control, water pump, outer water tube constitute circulation waterway; Described outer water tube also is interconnected via a pair of mouth of pipe that communicates of a heat exchanger, and another of this heat exchanger is connected with the heat supply water pipe with running water pipe respectively to the mouth of pipe that communicates.Described pump entrance place also is provided with filter; Described boiler appearance is laid with thermal insulation layer, and described boiler is provided with fluid level control device and automatic water-replenishing device.Can control the liquid level of boiler in the stove so automatically, can realize unmanned stable operation fully, obtain the more clean heat supply water source of water quality.
Below, with accompanying drawing technical solution of the present utility model is described further in conjunction with specific embodiments.
[description of drawings]
Fig. 1 is the structural representation of the utility model hot-water boiler embodiment.
Fig. 2 is the structural representation of the grid bar in the boiler.
[specific embodiment]
As Fig. 1, be depicted as a kind of fire compatible formula hot-water boiler, this hot-water boiler comprises pot body 1, is laid with thermal insulation layer (not detailed showing) on the external wall of pot, on pot body 1, be equiped with water inlet pipe 2, outlet pipe 3, between water inlet pipe 2 and outlet pipe 3, be provided with water pump 4, outer water tube 5 and by-pass valve control 6; Be equiped with chimney 7 on the top of pot body 1, in pot body 1, be provided with the burner 8 of malleation air blast, and burner 8 tops are provided with water fender 9, be provided with gap flue 10 between water fender 9 and pot body 1 inwall, the pot body 1 inner formation main flue gas path 10 of water fender 9 tops, be provided with water droplet gondola water faucet device 11 in exhaust gases passes 10, this gondola water faucet device 11 is grid bar array 111 and porous plate 110; The mouth of pipe 20 of water inlet pipe is arranged on the top of gondola water faucet device 11, and burner 8 belows are provided with the boiler 12 that compiles water droplet, and the mouth of pipe 30 of outlet pipe is arranged on the bottom of boiler 12.The exhanst gas outlet of the burner 8 of fuel oil/gas be oriented horizontal direction, water fender 9 is positioned at directly over the exhanst gas outlet of burner 8 and has arc arch shape curved surface covering structure.
Gondola water faucet device 11 comprises the porous plate 110 and the horizontal grid bar array of installing thereunder 111 of the superiors; Chimney opening 70 is located at porous plate and reaches the grid bar array below 110 more than 111.
As Fig. 2, be depicted as grid bar 1110, it is wedge angle angle steel surface 1110A down to downside, it is the smooth cover plate 1110B that covers the angle steel notch to upper side.
This device operation logic: after the high-temperature flue gas that burner 8 produces is walked around water fender 9,, rely on the natural draft of chimney 7 to discharge from bottom to top by behind the slit between the grid bar array 111; Water fender 9 can prevent combustion instability and the generation of imperfect combustion phenomenon in the burner 8.The hot water of boiler the inside is under the effect of water pump 4, be pumped in the plate type heat exchanger 13 after filtering via boiler 12, flashboard by-pass valve control 6, filter 14, in this plate type heat exchanger 13, the hot water that boiler produces carries out heat exchange with the running water of sending into through mouth of pipe 13B import, and the bath water that the running water heating of normal temperature is become the user and needs flows to the user by mouth of pipe 13B outlet.And boiler hot-water becomes warm water through cooling after the heat exchange, export from mouth of pipe 13A, the water inlet pipe 2 at boiler top is diverted on the porous plate 110 of gondola water faucet device 11 the superiors, flow out downwards in the aperture on porous plate 110 then, when the smooth cover plate 1110B that splashes to the angle steel notch when current goes up, big water droplet is further split into a lot of tiny little water droplets, through splashing down of multilayer, little water droplet is continued division and is become littler water droplet, thereby can greatly increase the contact area of water and flue gas, at the water droplet fission process simultaneously, water droplet constantly carries out heat exchange with high-temperature flue gas, falls back at last in the boiler 12, carries out next round heat exchange circulation ...; Drain pipe 15 fluid level control devices such as grade and the automatic water-replenishing device that are provided with on the boiler 12 can prevent the burner dry combustion method, and realize unattended operation.
The utility model the foregoing description is moved test, obtains following test result:
A) measured data:
Quantity of circulating water: 9m
3/ h,
Inlet water temperature: 20 ℃, outlet water temperature: 53 ℃;
Fuel type: liquefied petroleum gas,
Gas flow: 11m
3/ h, exhaust gas temperature: 55 ℃.
B) data computation:
The about 110000kJ/Nm of liquefied petroleum gas Lower heat value
3, the about 120000kJ/Nm of higher calorific value
3,
All converting becomes watt:
The caloric receptivity of recirculated water: 9 ÷ 3.6 * 4.18 * (53-20)=345 (kW),
Liquefied petroleum gas low heat valve: 11 ÷, 3600 * 110000=336 (kW),
Liquefied petroleum gas high calorific power: 11 ÷, 3600 * 120000=367 (kW),
Calculate: boiler thermal output (Lower heat value): 345 ÷ 336=103%,
Boiler thermal output (higher calorific value): 345 ÷ 367=103%.
Claims (10)
1, a kind of fire compatible formula hot-water boiler, this hot-water boiler comprises a pot body (1), on pot body (1) wall, be laid with thermal insulation layer, be equiped with water inlet pipe (2) on the described pot body (1), outlet pipe (3), between water inlet pipe (2) and outlet pipe (3), be provided with water pump (4), outer water tube (5) and by-pass valve control (6), top at described pot body (1) also is equiped with chimney (7), in described pot body (1), be provided with the burner (8) and the exhaust gases passes (10) of malleation air blast, it is characterized in that: described burner (8) top is provided with water fender (9), described exhaust gases passes (10) comprises pot body (1) inner space of the passage that passes through described water fender (9) and water fender (9) top, be provided with water droplet gondola water faucet device (11) in described exhaust gases passes (10), this gondola water faucet device (11) is grid bar array (111) and/or porous plate (110); The mouth of pipe (20) of described water inlet pipe (2) is arranged on the top of described gondola water faucet device (11), and described burner (8) below is provided with the boiler (12) that compiles water droplet, and the mouth of pipe (30) of described outlet pipe (3) is arranged on the bottom of described boiler (12).
2, fire compatible formula hot-water boiler as claimed in claim 1 is characterized in that: described gondola water faucet device (11) is two layers or more structure.
3, fire compatible formula hot-water boiler as claimed in claim 1 or 2 is characterized in that: described gondola water faucet device (11) comprises the porous plate (110) and the horizontal grid bar array of installing thereunder (111) of the superiors; Described chimney (7) opening (70) is located at below the described porous plate (110) and more than the described grid bar array (111).
4, fire compatible formula hot-water boiler as claimed in claim 3, it is characterized in that: the many described grid bars (1110) on sustained height are arranged in parallel and constitute individual layer grid bar arrays (111), and the many grid bars (1110) on the differing heights are arranged in parallel and constitute multi-layer gate bar array (111); Self stagger between the contiguous grid bar (1110) on the adjacent layer.
5, fire compatible formula hot-water boiler as claimed in claim 3 is characterized in that: described grid bar (1110) be flat surface to upper side, it is following convex surface to downside.
6, fire compatible formula hot-water boiler as claimed in claim 4, it is characterized in that: described grid bar (1110) be wedge angle angle steel surface (1110A) down to downside, described grid bar (1110) be the cover plate (1110B) that covers the angle steel notch to upper side.
7, fire compatible formula hot-water boiler as claimed in claim 3, it is characterized in that: described water fender (9) is positioned at directly over the exhanst gas outlet of described burner (8) and has arc arch shape curved surface covering structure, is provided with the flue gap between described water fender (9) and described pot body (1) inwall; The level that is oriented of the exhanst gas outlet of described burner (8) or upwards.
8, fire compatible formula hot-water boiler as claimed in claim 3 is characterized in that: described burner (8) be oil burner, gas burner, coal gasification burner one of them.
9, fire compatible formula hot-water boiler as claimed in claim 3 is characterized in that: described water inlet pipe (2), gondola water faucet device (11), boiler (12), outlet pipe (3), by-pass valve control (6), water pump (4), outer water tube (5) constitute circulation waterway; Described outer water tube (5) also is interconnected via a pair of phase siphunculus (13A) of a heat exchanger (13), and another of this heat exchanger (13) is connected with the heat supply water pipe with running water pipe respectively to phase siphunculus (13B).
10, fire compatible formula hot-water boiler as claimed in claim 3 is characterized in that: described water pump (4) porch also is provided with filter (14); Described boiler (12) appearance is laid with thermal insulation layer, and described boiler (12) is provided with fluid level control device and automatic water-replenishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083285 CN2751257Y (en) | 2004-08-25 | 2004-08-25 | Water-fire compatible hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083285 CN2751257Y (en) | 2004-08-25 | 2004-08-25 | Water-fire compatible hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2751257Y true CN2751257Y (en) | 2006-01-11 |
Family
ID=35932432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420083285 Expired - Fee Related CN2751257Y (en) | 2004-08-25 | 2004-08-25 | Water-fire compatible hot water boiler |
Country Status (1)
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| CN (1) | CN2751257Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115154A (en) * | 2015-09-23 | 2015-12-02 | 刘工勤 | Inner cyclic heating device of water and fire direct exchange type boiler |
| CN105805935A (en) * | 2016-04-29 | 2016-07-27 | 句容市恒盛电子水表厂 | Diffusion type boiler |
| RU2619429C1 (en) * | 2016-01-12 | 2017-05-15 | федеральное государственное автономное образовательное учреждение высшего образования "Северо-Кавказский федеральный университет" | Method of contact heat exchange and device for its implementation |
-
2004
- 2004-08-25 CN CN 200420083285 patent/CN2751257Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115154A (en) * | 2015-09-23 | 2015-12-02 | 刘工勤 | Inner cyclic heating device of water and fire direct exchange type boiler |
| RU2619429C1 (en) * | 2016-01-12 | 2017-05-15 | федеральное государственное автономное образовательное учреждение высшего образования "Северо-Кавказский федеральный университет" | Method of contact heat exchange and device for its implementation |
| CN105805935A (en) * | 2016-04-29 | 2016-07-27 | 句容市恒盛电子水表厂 | Diffusion type boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Yanfang Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060111 Termination date: 20130825 |