CN87101263A - Hot-water boiler - Google Patents
Hot-water boiler Download PDFInfo
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- CN87101263A CN87101263A CN 87101263 CN87101263A CN87101263A CN 87101263 A CN87101263 A CN 87101263A CN 87101263 CN87101263 CN 87101263 CN 87101263 A CN87101263 A CN 87101263A CN 87101263 A CN87101263 A CN 87101263A
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- boiler
- water
- burner hearth
- heater
- hot
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Abstract
The invention belongs to boiler.At present most boiler thermal outputs low can not burning low grade coal etc. deficiency, the present invention has done new design to the structure of hot-water boiler.Burner hearth of the present invention and heater are isolated mutually, do not contain water-cooling wall in the burner hearth, and the pre-portion of burner hearth is pre-with the refractory material envelope, only leaves an outlet flue, and comb shape heater places the outer top of burner hearth.The fire box temperature of this boiler can reach 1300～1400 ℃, and its thermal efficiency can reach 82%, and being much higher than existing this boiler of hot-water boiler can also burning inferior coal and anthracite.The application of this boiler will have a tremendous social and economic benefits.
Description
The invention belongs to boiler.
At present, the design of hot-water boiler all is based on a kind of like this thought, promptly allows the pot body (heater) of dress water fully contact with the flame of burner hearth, increases the heating surface area of pot body, to improve the thermal efficiency of boiler as far as possible.Under this thought guidance, the pot body of boiler mostly places the burner hearth top, and water-cooling wall is set to accept the heat of radiation of burner hearth in burner hearth.The boiler of this structure is owing to the flame of burner hearth directly contacts with water-cooling wall with a pot body, heat a large amount of in the burner hearth are siphoned away by water, and the temperature of burner hearth can not form high temperature all the time, only between 700～900 ℃, the thermal efficiency ratio of boiler is lower under such temperature, and exerts oneself and also do not reach designing requirement.Some boiler is in order to improve fire box temperature with burning low grade coal, above burner hearth, be provided with arch, a kind of boiler with arch is disclosed as Chinese patent 86202154, but still have convection calandria under the arch, and its arch front middle part at burner hearth, the rear portion of pot body still contacts with the flame of burner hearth, and the thermal efficiency of this stove also has only 70%～75% thermal efficiency that wants to improve significantly boiler, must the traditional structure of boiler be improved.
The purpose of this invention is to provide a kind of novel structure, thermal efficiency height, the hot-water boiler of energy burning low grade coal.
As shown in drawings, design feature of the present invention is that burner hearth 2 and heater 1 isolate mutually, does not contain water-cooling wall and any water pipe in the burner hearth, and roof of the furnace binds with refractory material, only leaves outlet flue 8 at the burner hearth end, and burner hearth is approximate to be sealed.Comb shape heater 1 places the outer top of burner hearth, and retaining cigarette wall 7 is set in the heater, with constraint flue gas trend.As shown in Figure 3, the heater of this boiler can be formed by connecting by the stack of the comb shown in the accompanying drawing 2, every comb by two header tube 3 and 5 and several and header tube water-circulating pipe 6 connected vertically form, constitute the tonnage of neglecting boiler greatly of the sheet number of the required comb of heater and comb and decide.For the water in the heater is flowed regularly, the water-circulating pipe every similar number in header tube is provided with a dividing plate 4, and water-circulating pipe is divided into the uiform section water circulation channel.Retaining cigarette wall is made by refractory material, can be vertically installed in as shown in Figure 4 in the heater, also can be horizontally set in the heater as shown in Figure 5.
Thereby first advantage of this boiler is a thermal efficiency high energy savings.Mainly contain two reasons, one, since burner hearth in do not contain water-cooling wall, pass to heater so the temperature of burner hearth can reach the flue gas of 1300～1400 ℃ of high temperature, increased the temperature difference, strengthened heat-transfer effect, a large amount of heat are absorbed by heater.The smoke temperature of this boiler and the smoke temperature of other boiler are very nearly the same, but the fire box temperature of this boiler is much larger than other boiler, so the thermal efficiency of this boiler is much higher than other boiler, can reach 82%.Owing to be provided with dividing plate in header tube, the water in this boiler heater is well-regulated to be flow through at the comb interior-layer layer, and the mobile of water do not have all to flow and be heated in the dead angle, and this also is one of high reason of this boiler thermal output.A large amount of energy has been saved in the raising of the thermal efficiency.Two, since burner hearth make by refractory material fully and bind, therefore the quantity of heat storage of burner hearth is big especially, when normal combustion stopped coal after two hours, also need the interior water temperature of a many hours heater just can drop to the temperature that stops to circulate, can save a large amount of energy so again.
Second advantage of this boiler is to make simply, and it is very convenient that transportation is installed, and can install at the scene, the phenomenon of having avoided boiler to force open the door and install.
The 3rd advantage of this boiler is to save steel, compares generally with existing boiler and can save 20%～30%, and this boiler also has a very big advantage, because its fire box temperature height, so incendivity burning inferior coal and anthracite.The application of this boiler can be country and saves a large amount of energy and steel, will have a tremendous social and economic benefits.
Accompanying drawing 1 is this boiler structure cutaway view;
Accompanying drawing 2 is the comb front view;
Accompanying drawing 3 is the heater front view that the comb shown in the accompanying drawing 2 is formed, and is made up of six combs
Accompanying drawing 4 is the vertically disposed boiler cutaway view of retaining cigarette wall;
Accompanying drawing 5 is the horizontally disposed boiler cutaway view of retaining cigarette wall.
Embodiments of the invention are as follows:
One, 600,000 kilocalories/hour hot-water boiler
Header tube is the steel pipe of 133 millimeters of φ, and long 3000 millimeters, water-circulating pipe is the steel pipe of 38 millimeters of φ, and long 1000 millimeters, every comb has two-layer water-circulating pipe, and every layer has 24, every 12 water-circulating pipes a dividing plate is arranged in header tube, has 3 dividing plates.1 ton of boiler is made up of above-mentioned six combs heater, and heating surface area is 32 square metres, and grate area is 1.32 square metres, and combustion space is 0.8 cubic metre.
Two, 1,200,000 kilocalories/hour hot-water boiler
Header tube is the steel pipe of 133 millimeters of φ, long 3000 millimeters, water-circulating pipe is the steel pipe of 38 millimeters of φ, long 1800 millimeters, every comb has two-layer water-circulating pipe, every layer has 24, every 12 water-circulating pipes a dividing plate is arranged in header tube, has 3 dividing plates in two header tube, the heater of 2 tons of boilers is made up of above-mentioned six combs, heating surface area is 60 square metres, and grate area is 2.5 square metres, and combustion space is 1.5 cubic metres.
Claims (4)
1, a kind of hot-water boiler is characterized in that burner hearth and heater isolate mutually, does not contain water-cooling wall in the burner hearth, and roof of the furnace binds with refractory material, only leaves outlet flue at the burner hearth end, and heater is arranged on the outer top of burner hearth, and retaining cigarette wall is arranged in the heater.
2, hot-water boiler according to claim 1, it is characterized in that heater is connected to form by several pieces comb stacks, every comb is made up of two header tube and several and header tube water-circulating pipe connected vertically, and the water-circulating pipe every similar number in header tube has the dividing plate that water-circulating pipe is divided into the uiform section water circulation channel.
3, according to claim 1 and 2 described hot-water boilers, it is characterized in that keeping off the cigarette wall and be vertically set in the heater.
4, according to claim 1 and 2 described hot-water boilers, it is characterized in that keeping off the cigarette wall and be horizontally set in the heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101263 CN87101263A (en) | 1987-12-22 | 1987-12-22 | Hot-water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101263 CN87101263A (en) | 1987-12-22 | 1987-12-22 | Hot-water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87101263A true CN87101263A (en) | 1988-07-27 |
Family
ID=4813283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101263 Pending CN87101263A (en) | 1987-12-22 | 1987-12-22 | Hot-water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87101263A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009059565A1 (en) * | 2007-11-05 | 2009-05-14 | Wusi Jiang | Heating device with directionally-flowing medium |
| CN102124267A (en) * | 2008-12-03 | 2011-07-13 | 三菱重工业株式会社 | Boiler structure |
-
1987
- 1987-12-22 CN CN 87101263 patent/CN87101263A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009059565A1 (en) * | 2007-11-05 | 2009-05-14 | Wusi Jiang | Heating device with directionally-flowing medium |
| CN102124267A (en) * | 2008-12-03 | 2011-07-13 | 三菱重工业株式会社 | Boiler structure |
| US9291343B2 (en) | 2008-12-03 | 2016-03-22 | Mitsubishi Heavy Industries, Ltd. | Boiler structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |