CN103759414A - Energy-saving and environment-friendly hot-water boiler with longitudinally-arranged boiler barrels and obliquely-pushing reciprocating fire grate - Google Patents
Energy-saving and environment-friendly hot-water boiler with longitudinally-arranged boiler barrels and obliquely-pushing reciprocating fire grate Download PDFInfo
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Abstract
The invention relates to hot-water boilers and provides an energy-saving and environment-friendly hot-water boiler with longitudinally-arranged boiler barrels and an obliquely-pushing reciprocating fire grate. The hot-water boiler solves the problems that an existing hot-water boiler with a reciprocating fire grate is large in coal consumption, pipe bundles are prone to blockage and the exhaust gas temperature is high. The hot-water boiler comprises a boiler body, a coal feed hopper, the obliquely-pushing reciprocating fire grate, a face arch, a rear arch, a left scorch prevention box, a right scorch prevention box, a plurality of upper boiler barrels and a plurality of lower boiler barrels which are the same as the upper boiler barrels in quantity. The hot-water boiler further comprises a first communicating pipe, a second communicating pipe, a front transverse collecting box, a rear transverse collecting box, a plurality of upper transverse communicating pipes, a plurality of first down pipes, a plurality of second down pipes, a plurality of middle transverse communicating pipes, a left membrane type wall, a right membrane type wall, a plurality of first front water wall pipes, a plurality of first rear water wall pipes, a plurality of second rear water wall pipes, a plurality of second front water wall pipes, a plurality of front arch pipes, a plurality of rear arch pipes, a plurality of sets of front convection pipe bundles and at least one convection type coal economizer; a boiler barrel set is formed by one upper boiler barrel and one lower boiler barrel form which are symmetrically arranged. The hot-water boiler is applied to centralized heating.
Description
Technical field
The present invention relates to a kind of hot-water boiler.
Background technology
Most of reciprocating fire grate hot water boiler fire grate leakiness coal of producing at present, leaks out; Boiler thermal output is low, high fume temperature, and coal consumption is high, and heating surface area is little, and operating cost is high.Hand labor intensity is large.
Summary of the invention
The present invention is that in order to solve, existing reciprocating fire grate hot water boiler coal consumption is large, tube bank is easily stopped up and the problem of high fume temperature, and then a kind of energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler is provided.
The present invention addresses the above problem the technical scheme of taking to be: energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler of the present invention comprises body of heater, feeding-coal bucket, the reciprocating reciprocal grate of cant, face arch, rear arch, left anti-clinker box, right anti-clinker box, multiple upper drums and the multiple lower drums consistent with this upper drum quantity, the bottom of multiple upper drums is burner hearth, the rear end, bottom of described reciprocal grate is provided with slag notch, described feeding-coal bucket be arranged on the front of body of heater front wall and be positioned at cant reciprocating fire grate input directly over, the output of reciprocal grate is arranged on the below in burner hearth, and this boiler also comprised for the first communicating pipe, the second communicating pipe, front horizontal header, rear horizontal header, many top rail communicating pipes, many the first down-comers, many the second down-comers, horizontal communicating pipe in many, left membrane wall, right membrane wall, many the first front waterwall tubes, many the first rear waterwall tubes, many the second rear waterwall tubes, many the second front waterwall tubes, many front arch tubes, many rear arched tubes, convection bank and at least one convection type economizer before many groups, the angle of inclination of described cant reciprocating fire grate is 8 °, in burner hearth, be vertically arranged with at least two and ranked first deflected current wall, rear arch and adjacent two ranked first Wei Ranshi district between deflected current wall, after burner hearth, the upper end of wall is provided with boiler smoke outlet, after burner hearth, after wall and body of heater, between wall, be provided with at least one convection type economizer, after body of heater, the upper end of wall is provided with exhaust opening, after body of heater, the lower end of wall is provided with blast orifice, and the both sides of inclined push type reciprocal grate are provided with inlet box, described multiple upper drum and multiple lower drum are longitudinally symmetricly set on top and bottom in body of heater and multiple upper drum and multiple lower drum after body of heater front wall and burner hearth between wall, a symmetrically arranged upper drum and a lower drum form a drum group, the bottom of convection type economizer is communicated with pipe network water collector, the top of convection type economizer is communicated with left anti-clinker box and right anti-clinker box respectively, one end of described every the first down-comer is communicated with upper drum, the other end of every the first down-comer is communicated with left anti-clinker box, one end of every the second down-comer is communicated with upper drum, the other end of every the second down-comer is communicated with right anti-clinker box, between every adjacent two upper drums, be furnished with the many top rail communicating pipes that two upper drums adjacent with this are communicated with, between every adjacent two lower drums, be furnished with horizontal communicating pipe in many that two lower drums adjacent with this are communicated with, one side of left membrane wall is communicated with left anti-clinker box, the opposite side of left membrane wall is communicated with upper drum, one side of right membrane wall is communicated with right anti-clinker box, the opposite side of right membrane wall is communicated with upper drum, one end of every the first front waterwall tube is communicated with upper drum, the other end of every the first front waterwall tube is communicated with lower drum, one end of every the first rear waterwall tube is communicated with upper drum, the other end of every the first rear waterwall tube is communicated with lower drum, one end of every the second front waterwall tube is communicated with lower drum, the other end of every the second front waterwall tube is communicated with front horizontal header, one end of every the second rear waterwall tube is communicated with lower drum, the other end of every the second rear waterwall tube is communicated with rear horizontal header, one end of every front arch tube is communicated with lower drum, the other end of every front arch tube is communicated with front horizontal header, one end of every rear arched tube is communicated with lower drum, the other end of every rear arched tube is communicated with rear horizontal header, before every group, one end of convection bank is communicated with upper drum, before every group, the other end of convection bank is communicated with lower drum, one end of the first communicating pipe is communicated with front horizontal header, the other end of the first communicating pipe is communicated with left anti-clinker box, one end of the second communicating pipe is communicated with rear horizontal header, the other end of the second communicating pipe is communicated with right anti-clinker box, left membrane wall is consistent with the pipe group number of right membrane wall, many the first rear waterwall tubes are consistent with the quantity of many first front waterwall tubes, many the second front waterwall tubes are consistent with the quantity of many second rear waterwall tubes.
The invention has the beneficial effects as follows:
1, the thermal efficiency is high: the double-deck longitudinal of drum of the present invention is arranged, adopt convection type structure, by convection bank, connect upper and lower drum, front horizontal header is communicated with lower drum by the second front waterwall tube, rear horizontal header is communicated with lower drum by the second rear waterwall tube, heating surface area is large, and radiation heating-surface is large, boiler inspection declaration theoretical thermal efficiency 84%～88%.
2, economize on coal: set up convection type economizer, heating surface is large, economize on coal on year-on-year basis 15～20%.Fire coal enters traveling-grate stoker preignition zone, because drum, the effect of air inducing power make cleaned coal, suspends, and general boiler clashes in boiler, and this boiler is set up Ran Shi district, cleaned coal clashes by deflected current wall, is deposited to rear arch, drop on traveling-grate stoker Ran Shi district, burning again, reaches effective utilization object of economizing on coal.
3, economize on electricity: economize on electricity on year-on-year basis 15～20%.
4, air preheater hot wind for combustion supporting: flue gas is by box air preheater, both sides air inlet and both sides fire grate inlet box enter interruption-forming hot wind for combustion supporting, and fire grate air intake preheat temperature can reach 120～150 ℃, improve fire box temperature, coal-fired fully burning, boiler slag carbon content is below 7%.
5, reduce heat loss due to exhaust gas: reduce greenhouse discharge, exhaust gas temperature is reduced to 105～130 ℃.
6, less scaling in convection bank: convection bank is arranged vertically, in pipe, be difficult for producing carbonate scale; Convection bank is difficult for carbon distribution, dust stratification outward, restrain outer carbon, ash under Action of Gravity Field, easily come off.
7, do not need blowing out to safeguard and reduce hand labor intensity: every group of interbank being equipped with blown grey hole.Close air blast, drive air-introduced machine air compressor and blow ash, first blow convection bank top, after-blow convection bank bottom, does not need blowing out to safeguard.
8, solve inclined to one side burning problem: both sides are to wind system, scientific and reasonable air distribution.
9, Environmental-protecting dust-removing, flue gas, by the first deflected current wall head-on collision, burns ash and falls into fire grate Ran Shi district, with mucking machine, discharges out of the furnace; Soot emissions: lingemann blackness reaches I level.
10, fire grate angle; Inclined push type reciprocal grate angle of the present invention is 8 °, low compared with same model boiler grate angle of inclination, the combustion space that has increased burner hearth, and leakiness coal, not stable.
11, applicable coal is wide: 3200kcal/kg～4500kcal/kg.
Accompanying drawing explanation
Fig. 1 is the main cutaway view of overall structure of the present invention, and Fig. 2 is the C-C profile of Fig. 1, and Fig. 3 is the B-B profile of Fig. 1, and Fig. 4 is boiler masonry figure.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1-Fig. 4 explanation, the energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler of present embodiment comprises body of heater 14, feeding-coal bucket 17, the reciprocating reciprocal grate 19 of cant, face arch 32, rear arch 33, left anti-clinker box 40, right anti-clinker box 39, multiple upper drums 11 and the multiple lower drums 16 consistent with this upper drum quantity, the bottom of multiple upper drums is burner hearth 51, the rear end, bottom of described reciprocal grate is provided with slag notch 23, described feeding-coal bucket 17 be arranged on the front of body of heater front wall 30 and be positioned at cant reciprocating fire grate 19 inputs directly over, the output of reciprocal grate is arranged on the below in burner hearth, and this boiler also comprised for the first communicating pipe 37, the second communicating pipe 38, front horizontal header 18, rear horizontal header 22, many top rail communicating pipes 25, many the first down-comers 24, many the second down-comers 43, horizontal communicating pipe 27 in many, left membrane wall 12, right membrane wall 44, many the first front waterwall tubes 15, many the first rear waterwall tubes 10, many the second rear waterwall tubes 36, many the second front waterwall tubes 42, many front arch tubes 20, many rear arched tubes 21, convection bank 34 and at least one convection type economizer 6 before many groups, the inclination angle beta of described cant reciprocating fire grate 19 is 8 °, in burner hearth 51, be vertically arranged with at least two and ranked first deflected current wall 31, rear arch 33 and adjacent two ranked first Wei Ranshi district 46 between deflected current wall 31, after burner hearth, the upper end of wall 29 is provided with boiler smoke outlet 28, after burner hearth, after wall 29 and body of heater, between wall 41, be provided with at least one convection type economizer 6, after body of heater, the upper end of wall 41 is provided with exhaust opening 8, after body of heater, the lower end of wall 41 is provided with blast orifice 3, and the both sides of inclined push type reciprocal grate 19 are provided with inlet box 45, described multiple upper drum 11 and multiple lower drum 16 are longitudinally symmetricly set on top and bottom in body of heater 14 and multiple upper drum 11 and multiple lower drum 16 after body of heater front wall 30 and burner hearth between wall 29, a symmetrically arranged upper drum 11 and a lower drum 16 form a drum group, the bottom of convection type economizer 6 is communicated with pipe network water collector, the top of convection type economizer 6 is communicated with left anti-clinker box 40 and right anti-clinker box 39 respectively, one end of described every the first down-comer 24 is communicated with upper drum 11, the other end of every the first down-comer 24 is communicated with left anti-clinker box 40, one end of every the second down-comer 43 is communicated with upper drum 11, the other end of every the second down-comer 43 is communicated with right anti-clinker box 39, between every adjacent two upper drums 11, be furnished with the many top rail communicating pipes 25 that two upper drums 11 adjacent with this are communicated with, between every adjacent two lower drums 16, be furnished with horizontal communicating pipe 27 in many that two lower drums 16 adjacent with this are communicated with, one side of left membrane wall 12 is communicated with left anti-clinker box 40, the opposite side of left membrane wall 12 is communicated with upper drum 11, one side of right membrane wall 44 is communicated with right anti-clinker box 39, the opposite side of right membrane wall 44 is communicated with upper drum 11, one end of every the first front waterwall tube 15 is communicated with upper drum 11, the other end of every the first front waterwall tube 15 is communicated with lower drum 16, one end of every the first rear waterwall tube 10 is communicated with upper drum 11, the other end of every the first rear waterwall tube 10 is communicated with lower drum 16, one end of every the second front waterwall tube 42 is communicated with lower drum 16, the other end of every the second front waterwall tube 42 is communicated with front horizontal header 18, one end of every the second rear waterwall tube 36 is communicated with lower drum 16, the other end of every the second rear waterwall tube 36 is communicated with rear horizontal header 22, one end of every front arch tube 20 is communicated with lower drum 16, the other end of every front arch tube 20 is communicated with front horizontal header 18, one end of every rear arched tube 21 is communicated with lower drum 16, the other end of every rear arched tube 21 is communicated with rear horizontal header 22, before every group, one end of convection bank 34 is communicated with upper drum 11, before every group, the other end of convection bank 34 is communicated with lower drum 16, one end of the first communicating pipe 37 is communicated with front horizontal header 18, the other end of the first communicating pipe 37 is communicated with left anti-clinker box 40, one end of the second communicating pipe 38 is communicated with rear horizontal header 22, the other end of the second communicating pipe 38 is communicated with right anti-clinker box 39, left membrane wall 12 is consistent with the pipe group number of right membrane wall 44, many the first rear waterwall tubes 10 are consistent with the quantity of many first front waterwall tubes 15, many the second front waterwall tubes 42 are consistent with the quantity of many second rear waterwall tubes 36.
On the convection type economizer 6 of present embodiment, be also provided with economizer water inlet 47, during real work, the intaking from lower shell 5 of convection type economizer 6, with the waste heat flue gas generation heat exchange of going out from boiler smoke outlet 28.The boiler of present embodiment also comprises air collector 13, and upper drum 11 is by connecting air collector 13 by the gas collection in upper drum 11 discharge, so that reduce the air pressure in upper drum 11.The boiler of present embodiment also comprises blow-off pipe 26, and the bottom of upper drum 11 is also provided with the first blow-off pipe 26, is convenient to clear up sewage residual in blow-off pipe.The boiler of present embodiment also comprises the second blow-off pipe 49 and the 3rd blow-off pipe 50, in front horizontal header 18, the second blow-off pipe 49 is installed, and in rear horizontal header 22, the 3rd blow-off pipe 50 is installed.The top outlet pipe of the convection type economizer of present embodiment is respectively the first outlet pipe 52 and the second outlet pipe 53, the first outlet pipes 52 are communicated with left anti-clinker box 40, and the second outlet pipe 53 is communicated with right anti-clinker box 39.
The specific embodiment two: in conjunction with Fig. 1 explanation, convection type economizer 6 described in present embodiment comprises upper shell 9, lower shell 5 and one group of convection bank 7, the upper end of convection bank 7 is communicated with upper shell 9, the lower end of convection bank 7 is communicated with lower shell 5, the lower shell 5 of the bottom of convection type economizer 6 is communicated with pipe network water collector, the upper shell 9 on the top of convection type economizer 6 is communicated with left anti-clinker box 40 and right anti-clinker box 39 respectively, and is vertically arranged with the second deflected current wall 35 between upper shell 6 and lower shell 5.So arrange, heating surface is large, and convection bank is difficult for carbon distribution, dust stratification outward, in convection tube, do not produce dirt, avoid convection bank to stop up, effectively save coal-fired, effectively reduce exhaust gas temperature, greatly improved boiler thermal output, boiler thermal output has improved 5%-10% simultaneously.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 explanation, this boiler of present embodiment also comprises air preheater 4, described air preheater 4 lateral arrangement are after burner hearth after wall 29 and body of heater in the body of heater 14 between wall 41, and air preheater 4 is positioned at the bottom of convection type economizer 6, the entrance of air preheater 4 is communicated with blast orifice 3, and the outlet of air preheater 4 is communicated with the entrance of the inlet box 45 of the both sides of inclined push type reciprocal grate 19.So arrange, be conducive to further improve the thermal efficiency of boiler, meet design requirement.Other is identical with the specific embodiment one or two.
The specific embodiment four: in conjunction with Fig. 1 explanation, boiler also comprises desulfurization dust chamber 2 described in present embodiment, and described desulfurization dust chamber 2 is positioned at the bottom of air preheater 4.So arrange, be conducive to most of flue dust in flue gas and fall into desulfurization dust chamber, reduce discharge, energy-conserving and environment-protective are more obvious.Other is identical with the specific embodiment one.
The specific embodiment five: in conjunction with Fig. 1 explanation, boiler also comprises that dedusting locks grey device 1 described in present embodiment, and described dedusting is locked grey device 1 and is positioned at desulfurization dust chamber 2, and the upper end that the lock ash pipe on grey device 1 is locked in described dedusting is communicated with the outlet of desulfurization dust chamber 2.The dedusting of present embodiment is locked grey device and is adopted the existing proprietary technology of applicant, and grey device is locked in dedusting: when ash reaches constant weight, by lever principle, lock hawk is opened automatically, and ash, slag fall into out pit, with mucking machine, get rid of outside stove.Thereby reduce hand labor intensity.Improved operating efficiency.Other is identical with the specific embodiment one or four.
Claims (5)
1. an energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler, it comprises body of heater (14), feeding-coal bucket (17), the reciprocating reciprocal grate of cant (19), face arch (32), rear arch (33), left anti-clinker box (40), right anti-clinker box (39), multiple upper drums (11) and the multiple lower drums (16) consistent with this upper drum quantity, the bottom of multiple upper drums is burner hearth (51), the rear end, bottom of described reciprocal grate is provided with slag notch (23), described feeding-coal bucket (17) be arranged on the front of body of heater front wall (30) and be positioned at cant reciprocating fire grate (19) input directly over, the output of reciprocal grate is arranged on the below in burner hearth, it is characterized in that: this boiler also comprises the first communicating pipe (37), the second communicating pipe (38), front horizontal header (18), rear horizontal header (22), many top rail communicating pipes (25), many the first down-comers (24), many the second down-comers (43), horizontal communicating pipe (27) in many, left membrane wall (12), right membrane wall (44), many the first front waterwall tubes (15), many the first rear waterwall tubes (10), many the second rear waterwall tubes (36), many the second front waterwall tubes (42), many front arch tubes (20), many rear arched tubes (21), convection bank (34) and at least one convection type economizer (6) before many groups, the angle of inclination (β) of described cant reciprocating fire grate (19) is 8 °, in burner hearth (51), be vertically arranged with at least two and ranked first deflected current wall (31), rear arch (33) and adjacent two ranked first Wei Ranshi district (46) between deflected current wall (31), the upper end of wall after burner hearth (29) is provided with boiler smoke outlet (28), after wall after burner hearth (29) and body of heater, between wall (41), be provided with at least one convection type economizer (6), the upper end of wall after body of heater (41) is provided with exhaust opening (8), the lower end of wall after body of heater (41) is provided with blast orifice (3), and the both sides of inclined push type reciprocal grate (19) are provided with inlet box (45), described multiple upper drum (11) and multiple lower drum (16) are longitudinally symmetricly set on top and bottom in body of heater (14) and multiple upper drum (11) and multiple lower drum (16) and are positioned at after body of heater front wall (30) and burner hearth between wall (29), a symmetrically arranged upper drum (11) and a lower drum (16) form a drum group, the bottom of convection type economizer (6) is communicated with pipe network water collector, the top of convection type economizer (6) is communicated with left anti-clinker box (40) and right anti-clinker box (39) respectively, one end of described every the first down-comer (24) is communicated with upper drum (11), the other end of every the first down-comer (24) is communicated with left anti-clinker box (40), one end of every the second down-comer (43) is communicated with upper drum (11), the other end of every the second down-comer (43) is communicated with right anti-clinker box (39), between every adjacent two upper drums (11), be furnished with the many top rail communicating pipes (25) that two upper drums adjacent with this (11) are communicated with, between every adjacent two lower drums (16), be furnished with horizontal communicating pipe (27) in many that two lower drums adjacent with this (16) are communicated with, one side of left membrane wall (12) is communicated with left anti-clinker box (40), the opposite side of left membrane wall (12) is communicated with upper drum (11), one side of right membrane wall (44) is communicated with right anti-clinker box (39), the opposite side of right membrane wall (44) is communicated with upper drum (11), one end of every the first front waterwall tube (15) is communicated with upper drum (11), the other end of every the first front waterwall tube (15) is communicated with lower drum (16), one end of every the first rear waterwall tube (10) is communicated with upper drum (11), the other end of every the first rear waterwall tube (10) is communicated with lower drum (16), one end of every the second front waterwall tube (42) is communicated with lower drum (16), the other end of every the second front waterwall tube (42) is communicated with front horizontal header (18), one end of every the second rear waterwall tube (36) is communicated with lower drum (16), the other end of every the second rear waterwall tube (36) is communicated with rear horizontal header (22), one end of every front arch tube (20) is communicated with lower drum (16), the other end of every front arch tube (20) is communicated with front horizontal header (18), one end of every rear arched tube (21) is communicated with lower drum (16), the other end of every rear arched tube (21) is communicated with rear horizontal header (22), before every group, one end of convection bank (34) is communicated with upper drum (11), before every group, the other end of convection bank (34) is communicated with lower drum (16), one end of the first communicating pipe (37) is communicated with front horizontal header (18), the other end of the first communicating pipe (37) is communicated with left anti-clinker box (40), one end of the second communicating pipe (38) is communicated with rear horizontal header (22), the other end of the second communicating pipe (38) is communicated with right anti-clinker box (39), left membrane wall (12) is consistent with the pipe group number of right membrane wall (44), many the first rear waterwall tubes (10) are consistent with the quantity of many first front waterwall tubes (15), many the second front waterwall tubes (42) are consistent with the quantity of many second rear waterwall tubes (36).
2. energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler according to claim 1, it is characterized in that: described convection type economizer (6) comprises upper shell (9), lower shell (5) and one group of convection bank (7), the upper end of convection bank (7) is communicated with upper shell (9), the lower end of convection bank (7) is communicated with lower shell (5), the lower shell (5) of the bottom of convection type economizer (6) is communicated with pipe network water collector, the upper shell (9) on the top of convection type economizer (6) is communicated with left anti-clinker box (40) and right anti-clinker box (39) respectively, and be vertically arranged with the second deflected current wall (35) between upper shell (6) and lower shell (5).
3. energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler according to claim 1 and 2, it is characterized in that: this boiler also comprises air preheater (4), described air preheater (4) lateral arrangement is after burner hearth after wall (29) and body of heater in the body of heater (14) between wall (41), and air preheater (4) is positioned at the bottom of convection type economizer (6), the entrance of air preheater (4) is communicated with blast orifice (3), and the outlet of air preheater (4) is communicated with the entrance of the inlet box (45) of the both sides of inclined push type reciprocal grate (19).
4. energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler according to claim 1, is characterized in that: described boiler also comprises desulfurization dust chamber (2), and described desulfurization dust chamber (2) is positioned at the bottom of air preheater (4).
5. according to the energy-conserving and environment-protective drum longitudinal cant reciprocating fire grate hot water boiler described in claim 1 or 4, it is characterized in that: described boiler also comprises that dedusting locks grey device (1), described dedusting is locked grey device (1) and is positioned at desulfurization dust chamber (2), and the upper end that the lock ash pipe on grey device (1) is locked in described dedusting is communicated with the outlet of desulfurizing dust-collector (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037745.5A CN103759414A (en) | 2014-01-26 | 2014-01-26 | Energy-saving and environment-friendly hot-water boiler with longitudinally-arranged boiler barrels and obliquely-pushing reciprocating fire grate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410037745.5A CN103759414A (en) | 2014-01-26 | 2014-01-26 | Energy-saving and environment-friendly hot-water boiler with longitudinally-arranged boiler barrels and obliquely-pushing reciprocating fire grate |
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| CN103759414A true CN103759414A (en) | 2014-04-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551158A (en) * | 2009-05-19 | 2009-10-07 | 哈尔滨工业大学 | Large-scale water-fire tube hot water boiler of double-barrel transverse vertical type threaded flue |
| CN102297509A (en) * | 2011-09-30 | 2011-12-28 | 哈尔滨市天地宽节能技术有限公司 | Boiler drum longitudinally arranged chain grate hot water boiler |
| CN203687352U (en) * | 2014-01-26 | 2014-07-02 | 哈尔滨市天地宽节能技术有限公司 | Energy-saving environment-friendly boiler barrel longitudinally-arranged inclined push reciprocating grate hot water boiler |
-
2014
- 2014-01-26 CN CN201410037745.5A patent/CN103759414A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551158A (en) * | 2009-05-19 | 2009-10-07 | 哈尔滨工业大学 | Large-scale water-fire tube hot water boiler of double-barrel transverse vertical type threaded flue |
| CN102297509A (en) * | 2011-09-30 | 2011-12-28 | 哈尔滨市天地宽节能技术有限公司 | Boiler drum longitudinally arranged chain grate hot water boiler |
| CN203687352U (en) * | 2014-01-26 | 2014-07-02 | 哈尔滨市天地宽节能技术有限公司 | Energy-saving environment-friendly boiler barrel longitudinally-arranged inclined push reciprocating grate hot water boiler |
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Application publication date: 20140430 |