CN201487923U - micro-pressure high-temperature boiler - Google Patents
micro-pressure high-temperature boiler Download PDFInfo
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- CN201487923U CN201487923U CN2009201693581U CN200920169358U CN201487923U CN 201487923 U CN201487923 U CN 201487923U CN 2009201693581 U CN2009201693581 U CN 2009201693581U CN 200920169358 U CN200920169358 U CN 200920169358U CN 201487923 U CN201487923 U CN 201487923U
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Abstract
The utility model provides a micro-pressure high-temperature boiler which further improves and perfects the existing low-pressure boiler. The micro-pressure high-temperature boiler mainly comprises a boiler shell, a furnace, a chimney and a built-in super-heater provided with a flue gas channel and a steam channel respectively, wherein the built-in super-heater is assembled in the chimney directly communicated with a hearth, so that saturated steam can be subjected to highly-efficient heat exchange with high-temperature flue gas in the built-in super-heater and heated up and converted into high-temperature superheated steam, more particularly, the temperature of the superheated steam can be safely increased to 180 DEG C to 200 DEG C at 0.04MPa, thereby greatly improving the capacity of steam for carrying and transferring heat energy. The utility model has the advantages of simple structure, low manufacturing cost, high heat exchange efficiency, low operational cost and high safety performance. Therefore, the utility model is particularly applicable to the installation and application in small- and medium-sized enterprises and has good prospect of popularization and application.
Description
Technical field:
The utility model relates to low pressure steam boiler, and it belongs to the technical field of boiler plant, specifically a kind of micro-pressure high-temperature boiler.
Background technology:
Boiler occupies important status as a kind of important heat equipment in advancing national national economic development process, show according to interrelated data: China has been one of country of coal-burning boiler production and use amount maximum.Not only to have the abundant in coal resource relevant with China for this, also because coal-burning boiler is compared with fuel oil or gas fired-boiler, has the lower clear superiority of operating cost on technical-economic index, makes the coal-burning boiler product to occupy critical role on boiler market.According to investigation: on existing boiler market, also especially small-sized dual purpose steam water boiler and low pressure steam boiler are had great potential demand amount.Can say for certain that this type of low pressure steam boiler product all can have splendid development prospect on the boiler market of long term from now on.Trace it to its cause and be: this boiler generally is to adopt vertical structure, have the small and exquisite occupation of land of volume less, advantage such as manufacturing cost is low, the transportation installation and maintenance are easy to operate and operating cost is lower, be subjected to medium-sized and small enterprises and numerous individual proprietors' favor deeply.Though existing low pressure steam boiler product has above-mentioned advantage, but it also exists some and uses defective in actual motion: mainly be because the operating pressure of low pressure steam boiler is low, the steam exit temperature of the output of producing is lower, and it is also less that it can carry the thermal energy that transmits conveying.For example: steam pressure is under the minute-pressure of 0.04MPa, its temperature just has only 109 ℃, the thermal energy that utilizes the low-pressure steam carrying to carry also is extremely limited, in fact also can't satisfy the heat demand that most of medium-sized and small enterprises and individual proprietor carry out production operation.The border operating position is investigated factually: the owner of most of small business only wants to spend a spot of money to buy the low-pressure boiler of low price, vapor (steam) temperature is raise satisfy production operation heat supply needs and improve boiler working pressure in actual use voluntarily, this is a kind of dangerous operation mode of superpressure operation in violation of rules and regulations without authorization.Need not to dare not or would not speak up, because it is the department of prison inspection at present is still relatively weaker with respect to the mesohigh boiler for the supervision and management dynamics of this type of low-pressure boiler,, local even also do not include the category of substantive management at some particularly to small-sized dual purpose steam water boiler.Can not rant out, present most of low-pressure boilers nearly all are running jobs under superpressure precarious position in various degree, and this will bury great potential safety hazard to social public security.In fact, also recurred the serious accident of a lot of low-pressure boiler blasts recently.How just can make low-pressure boiler operation and obtain higher vapor (steam) temperature under the low pressure of regulation even minute-pressure? that is to say the micro-pressure high-temperature steam that how to make truly, and enable to carry the heat demand that the more thermal energy of transmission satisfies user's production operation, and then eliminate the potential safety hazard of low-pressure boiler superpressure operation.This has been a problem that presses for the improvement solution of a long-term puzzlement low-pressure boiler production industry, up to now, in existing boiler for producing industry, the steam boiler product that makes steam can reach 200 high temperature (promptly being equivalent to rated operating pressure 1.27MPa) under the 0.04MPa minute-pressure still is a blank, this just the utility model want the problem that solves.
The utility model content:
The purpose of this utility model is intended to overcome the thermal energy less defects that outlet temperature is low, carrying is transmitted that existing low-pressure boiler is produced output steam, and propose a kind of can be under the 0.04MPa minute-pressure, transfer out the micro-pressure high-temperature boiler of 200 ℃ of high-temperature steams of 180 ∽.
The utility model is achieved by the following technical solution:
The micro-pressure high-temperature boiler that the utility model proposes, it comprises the shell body, flue, chimney, fire door circle and one group of horizontal water tube, fixedly connected chimney in flue top and the water tank that seals with shell body formation, said fire door circle is connected in flue, the shell body also passes the burner hearth that water tank and flue form and communicates, one group of horizontal water tube is installed in the burner hearth, it is characterized in that: in chimney, be fitted with built-in superheater, said built-in superheater is provided with one group of dividing plate and fume pipe, do one group of steam through hole on the dividing plate and formed steam channel, said fume pipe passes the steam through hole of one group of dividing plate and is connected in seal base, seal cover board forms exhaust gases passes, the built-in steam pipe that is connected in seal base communicates with built-in superheater, the admission mouth of pipe of built-in steam pipe is positioned at the vaporium on the water tank liquid level, is connected and installed with overheated vapour efferent duct on seal cover board.It carries out work by following principle: coal-fired when the burner hearth internal combustion heats the water body in the water tank, the heat radiation of burner hearth internal combustion and the high-temperature flue gas that is produced will upwards fling built-in superheater and enter in one group of formed exhaust gases passes of fume pipe, and the seal base of built-in superheater, one group of dividing plate and fume pipe are heated.And the water body in the water tank is heated the steam that being warming up to boils is generated and can enters in the vaporium, and in fact the steam that is generated this moment should be saturated vapor, shows according to thermodynamic principles: " temperature of saturated vapor will raise with the increase of pressure ".Along with constantly carrying out of heating; furnace pressure can raise gradually; can follow the tracks of automatically by safety valve, water seal safety device that the safety value that is fitted to boiler routinely is set at 0.04Mpa and detect protection; when the pressure of steam in the stove surpasses when setting safety value; it can be opened pressure release automatically and carry out safeguard protection, reaches to stop the superpressure operation, eliminate safe hidden trouble and can guarantee boiler purpose of safe operation under the 0.04MPa minute-pressure.By built-in steam pipe the saturated vapor in the vaporium is constantly imported built-in superheater, saturated vapor is being torn open in the process of rising through one group of steam steam channel that through hole forms commentaries on classics doing on the dividing plate successively, the high-temperature flue gas that enters one group of fume pipe is carried out effective heat exchange, saturated vapor will fully absorb the heat of high-temperature flue gas efficiently and be heated the overheated vapour that intensification changes high temperature in built-in superheater, show according to thermodynamic principles: " pressure of overheated vapour can not increase along with the temperature rising ", can guarantee that the pressure of hyperthermia and superheating vapour still is in the minute-pressure safety value of 0.04MPa.So far, can use for user security by the overheated vapour that overheated vapour efferent duct transfers out micro-pressure high-temperature.Micro-pressure high-temperature boiler according to the technical scheme production that the utility model proposed, detection on probation through the regular period shows: overheated vapor outlet temperature can be up to 200 ℃ of 180 ∽ in 0.04MPa minute-pressure safety value, this has just improved steam greatly can carry the ability of carrying thermal energy, has been about as much as the steam boiler ability that rated operating pressure is 1.27MPa according to measuring and calculating.This is concerning general medium-sized and small enterprises and most of individual proprietor, use the micro-pressure high-temperature boiler product that the utility model proposed, need not risk superpressure operation in violation of rules and regulations, also can satisfy the heat demand of production operation, this has positive effect to eliminating potential safety hazard.
The utility model also has following technical characterictic:
Said chimney is the cylindrical structure straight-through with burner hearth, be fitted to the outlet flue position that the interior built-in superheater of chimney is positioned at the burner hearth top, can make the high-temperature flue gas of the heat radiation of burner hearth internal combustion and rising can fling the seal base of built-in superheater, this all has obvious effect to the heat exchanger effectiveness that improves built-in superheater and the temperature of overheated vapour.
Chimney inner wall position place at equipped built-in superheater is filled with insulation material layer, can obviously strengthen the heat exchange effect of built-in superheater, and this also has certain effect to the temperature that improves overheated vapour.
Said one group of horizontal water tube is to be installed in the burner hearth by the crisscross mode that is in tilted layout, and can effectively increase heating surface area, to improving the heat energy utilization rate and strengthening effects of energy saving and emission reduction certain effect is arranged.
The technical scheme that the utility model proposed is equally applicable to manufacture the dual purpose steam water boiler product.
The utility model is compared with prior art and is had following outstanding substantive distinguishing features and marked improvement:
1. the utility model has been initiated the efficient heat exchange structure of " equipped built-in superheater in the chimney of straight-through burner hearth ", the heat that it fully absorbs the high-temperature flue gas that is discharged comes the heat temperature raising saturated vapor and makes it to change into hyperthermia and superheating vapour, can significantly improve the ability that thermal energy is carried in the steam carrying on the basis of guaranteeing minute-pressure safety.
2. the utility model is that the heat that makes full use of the high-temperature flue gas that discharges comes the heat temperature raising saturated vapor and makes it to change into hyperthermia and superheating vapour, its efficiency of utilization height, reduce the temperature of the flue gas that discharges greatly and then alleviated the smoke contamination load effectively, have tangible effects of energy saving and emission reduction, splendid social enviroment protection economic benefit is arranged.
3. the utility model is novel, reasonable in design, has that small and exquisite, the easy to manufacture production cost of the simple and direct volume of structure is low, transportation install to be taken up an area of less, attended operation is easy to use and operating cost is low, the high outstanding advantage of security performance, and fabulous market prospects are arranged.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation (amplification) of built-in superheater of the present utility model.
Fig. 3 is the A-A view of Fig. 2, and the fume pipe of showing built-in superheater passes the structural representation of the steam channel that forms behind the steam through hole of dividing plate.
The specific embodiment:
The embodiment of the micro-pressure high-temperature boiler that the utility model proposes is described below in conjunction with accompanying drawing:
A kind of micro-pressure high-temperature boiler, it is mainly by shell body 14, flue 15, water inlet pipe 9, chimney 2, fire door circle 12, one group of horizontal water tube 7,8 and built-in superheater 17 constitute, constitute the water tank 6 of sealing on flue 15 tops by end socket 16 fixedly connected chimneys 2 and with shell body 14, chimney 1 is installed on the connection base on chimney 2 tops, fire door circle 12 passes water tank 6 and is connected in flue 15, shell body 14 also communicates with burner hearth 13 that flue 15 forms, one group of horizontal water tube 7,8 are installed in the burner hearth 13 by the crisscross mode that is in tilted layout, fire grate 10 and scum hole 11 are set in the bottom of burner hearth 13, said chimney 2 is the large diameter cylinder body structure that leads directly to burner hearth 13, in chimney 2, be fitted with built-in superheater 17, make built-in superheater 17 be positioned at the outlet flue position on burner hearth 13 tops, make it effectively to absorb the heat radiation in the burner hearth 13, chimney 2 inner wall position places at equipped built-in superheater 17 are filled with insulation material layer 3, said insulation material layer 3 adopts fire-resistant mixed earth that good result of use is arranged, above-mentioned said built-in superheater 17 is by one group of dividing plate 20, fume pipe 18 and seal base 22, seal cover board 24 constitutes, on dividing plate 20, done one group of steam through hole 21, the aperture of steam through hole 21 is greater than the external diameter of fume pipe 18, fume pipe 18 is passed the steam through hole 21 of one group of dividing plate 20 successively and make it around fume pipe 18 outer walls, to form steam channel, the two ends of fume pipe 18 are fixedly connected on seal base 22, seal cover board 24 forms exhaust gases passes, the built-in steam pipe 5 that is connected in seal base 22 communicates with built-in superheater 17, and the admission mouth of pipe that makes built-in steam pipe 5 is positioned at the vaporium 4 on the water tank 6 water body liquid levels, is connected and installed with overheated vapour efferent duct 19 on seal cover board 24.It is performed such work: at first add water body by water inlet pipe 9 in water tank 6; safety valve with boiler; the safeguard protection value of water seal safety device is set at 0.04MPa; light a fire in burner hearth 13 by fire door circle 12 again; adding coal combustion heats the water body in the water tank 6; the coal-fired high-temperature flue gas that continuous burning is produced in burner hearth 13 upwards flings the seal base 22 of built-in superheater 17; and through one group of fume pipe, 18 formed exhaust gases passes; finally discharge out of the furnace by chimney 1; when the water body in the water tank 6 is heated saturated vapor that being warming up to boils is generated and enters in the vaporium 4; along with the heating constantly carry out furnace pressure is increased; when steam pressure in the stove surpasses set definite value; safety valve; the water seal safety device can be opened pressure release automatically and carry out safeguard protection, guarantees boiler safe operation under the 0.04MPa minute-pressure.And the saturated vapor in the vaporium 4 is with as shown in arrow 23, by built-in steam pipe 5 import in the built-in superheater 17 in time and successively one group of steam through hole, the 21 formed steam channels by dividing plate 20 change gradually and tear rising open, at this moment the saturated vapor heat that will fully absorb the high-temperature flue gas in one group of fume pipe 18 carries out effective heat exchange action, in heat exchanging process, saturated vapor is when absorbing the heat of high-temperature flue gas, and self is changed into hyperthermia and superheating vapour by heat temperature raising constantly.Owing to the pressure of overheated vapour can not increase along with temperature raises, can guarantee that the pressure of hyperthermia and superheating vapour still is in the minute-pressure safety value of 0.04MPa.So far, can transfer out the overheated vapour of micro-pressure high-temperature by overheated vapour efferent duct 19 uses for the user.Detection on probation through one period shows: overheated vapor outlet temperature can reach 200 ℃ in 0.04MPa minute-pressure safety value, has greatly strengthened the ability of carrying transporting heat energy.Simultaneously, because the heat exchange action of built-in superheater 17, can also effectively reduce flue-gas temperature and dust concentration, show through detecting: the class area standard limit of smog release that flue gas pollutant discharging overall target meets national regulation, can carry out safety dumping by 1 pair of tail gas of chimney.
The foregoing description only is one of concrete mode of the technical scheme that can realize that the utility model proposes; do not constitute restriction, also should comprise other embodiment that those skilled in the art can change according to the technical scheme that the utility model proposes the claimed scope of the utility model.
Claims (4)
1. micro-pressure high-temperature boiler, it comprises shell body (14), flue (15), chimney (2), fire door circle (12) and one group of horizontal water tube (7,8), fixedly connected chimney in flue (15) top (2) and the water tank (6) that seals with shell body (14) formation, said fire door circle (12) is connected in flue (15), shell body (14) also passes the burner hearth (13) that water tank (6) and flue (15) form and communicates, one group of horizontal water tube (7,8) be installed in the burner hearth (13), it is characterized in that: in chimney (2), be fitted with built-in superheater (17), said built-in superheater (17) is provided with one group of dividing plate (20) and fume pipe (18), do one group of steam through hole (21) on the dividing plate (20) and formed steam channel, said fume pipe (18) passes the steam through hole (21) of one group of dividing plate (20) and is connected in seal base (22), seal cover board (24) forms exhaust gases passes, the built-in steam pipe (5) that is connected in seal base (22) communicates with built-in superheater (17), the admission mouth of pipe of built-in steam pipe (5) is positioned at the vaporium (4) on water tank (6) liquid level, is connected and installed with overheated vapour efferent duct (19) on seal cover board (24).
2. micro-pressure high-temperature boiler according to claim 1 is characterized in that: said chimney (2) is the cylindrical structure straight-through with burner hearth (13), is fitted to the outlet flue position that the interior built-in superheater (17) of chimney (2) is positioned at burner hearth (13) top.
3. micro-pressure high-temperature boiler according to claim 1 and 2 is characterized in that: chimney (2) the inner wall position place at equipped built-in superheater (17) is filled with insulation material layer (3).
4. micro-pressure high-temperature boiler according to claim 1 and 2 is characterized in that: said one group of horizontal water tube (7,8) is to be installed in the burner hearth (13) by the crisscross mode that is in tilted layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201693581U CN201487923U (en) | 2009-08-24 | 2009-08-24 | micro-pressure high-temperature boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201693581U CN201487923U (en) | 2009-08-24 | 2009-08-24 | micro-pressure high-temperature boiler |
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| Publication Number | Publication Date |
|---|---|
| CN201487923U true CN201487923U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201693581U Expired - Fee Related CN201487923U (en) | 2009-08-24 | 2009-08-24 | micro-pressure high-temperature boiler |
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| Country | Link |
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| CN (1) | CN201487923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388814A (en) * | 2013-06-28 | 2013-11-13 | 孙受宁 | Vertical coal-fired steam boiler |
-
2009
- 2009-08-24 CN CN2009201693581U patent/CN201487923U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388814A (en) * | 2013-06-28 | 2013-11-13 | 孙受宁 | Vertical coal-fired steam boiler |
| CN103388814B (en) * | 2013-06-28 | 2015-06-24 | 孙受宁 | Vertical coal-fired steam boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110824 |