CN2935001Y

CN2935001Y - Vacuum boiler without exhausting device

Info

Publication number: CN2935001Y
Application number: CN 200620021480
Authority: CN
Inventors: 张荣春
Original assignee: HEILONGJIANG DONGHAN TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: Shanxi Tongneng Boiler Co., Ltd.
Priority date: 2006-08-18
Filing date: 2006-08-18
Publication date: 2007-08-15
Anticipated expiration: 2016-08-18

Abstract

The utility model relates to a boiler. The utility model consists of a boiler shell (31), an insulating layer (32), a combustion chamber (1), an evacuated chamber (2), an exchanger (3), a burner (8), a smoke box (5), a reticular steam separating unit (6) and a U-shaped baffle (7) so as to eliminate defects of prior art, such as complicated structure, large volume, inefficiency and large weight; wall of both sides and wall of rear side of the combustion chamber consist of a plurality of water pipes (11) having shrunk diameters on top and at bottom and a plurality of round steel parts (12); top and bottom of each of the pipes are connected with water cans arranged at bottom of the evacuated chamber and the combustion chamber; the smoke box is arranged on lateral wall at bottom of the combustion chamber; a stack joint flange (51) is provided on outer wall of the smoke box; the U-shaped baffle is fixed at a place corresponding to top openings of a plurality of water pipes at bottom of intracavity of the evacuated chamber; the network-shaped steam separating unit is arranged at bottom in intracavity of the evacuated chamber and is permanently connected with inner edge of the U-shaped baffle and front wall of the combustion chamber. The burner is a one-piece burner. The boiler provided by the utility model has the advantages of compactness, light weight and high thermal efficiency, and is unrestricted by use occasions.

Description

The vacuum boiler of no air extractor

Technical field

The utility model relates to a kind of boiler.

Background technology

Traditional vacuum boiler is mostly by the last lower drum of circle, or the horizontal internal combustion boiler addition of vacuum chamber transformation of three backhauls forms, vacuum in the boiler is to finish by closed system addition of vacuum pump, thereby existing complex structure, volume is big, efficient is low, weight is big problem, use occasion is restricted.

The utility model content

For solving the existing in prior technology complex structure, volume is big, efficient is low, the problem that weight is big, the utility model provides a kind of vacuum boiler that does not have air extractor, it comprises the combustion chamber 1 that is arranged in boiler shell 31 and the heat-insulation layer 32, vacuum chamber 2, interchanger 3 and burner 8, the bottom of combustion chamber 1 is provided with the top that water tank 4 and described vacuum chamber 2 place combustion chamber 1, described heat exchanger 3 is installed on the antetheca of vacuum chamber 2, burner 8 is fixedly installed on the antetheca of combustion chamber 1, it also comprises smoke box 5, netted water separator 6 and U type baffle plate 7, the two side of described combustion chamber 1 and rear wall are respectively by on several, the water pipe 11 of lower end undergauge and several round steel spares 12 are formed, between two water pipes 11 of upper end to lower end undergauge section start, be welded with round steel spare 12, on each water pipe 11, the lower end is communicated with the water tank 4 of

vacuum chamber

2 and 1 bottom, combustion chamber respectively; Described smoke box 5 is arranged on the lateral wall of 1 bottom, combustion chamber and the outer wall of smoke box 5 is provided with chimney adpting flange 51; U type baffle plate is fixedly installed on the bottom of vacuum chamber 2 inner chambers and the corresponding position of several water pipes 11 upper port, and described netted water separator 6 places the bottom of vacuum chamber 2 inner chambers and fixedlys connected with the antetheca of combustion chamber 1 with the inner edge of U type baffle plate; Described burner 8 is an integral combustor.Boiler described in the utility model is adding man-hour; the method of the carbon-dioxide arc welding of machining groove is adopted in its sealing place; improved whole sealing; boiler need not to install and vacuumizes used magnetic valve, vacuum suction gauge tap and vavuum pump; reduced the quantity of the mouth of pipe on the stove; simplified structure, and reduce cost.Operation principle: burner starts, the water pipe 11 of 1 two side, combustion chamber and rear wall, make liquid working media rapid endothermic gasification under vacuum state of boiler internal become gaseous state, gaseous working medium condenses into liquid state and emits on heat exchanger 3 a large amount of heats, the heat that heat exchanger obtains is taken away by the water in the peripheral system loop, and the liquid working media after condensing is got back to the liquid environment heating and gasifying, back and forth carries out energy exchange according to this; The flue gas that burning produces, the gap between the undergauge place of several water pipe 11 lower ends enters smoke box 5, discharges through chimney adpting flange 51 then.

The beneficial effects of the utility model: 1, simple in structure, volume is little, in light weight.Burner 8 described in the utility model adopts integral combustor, has reduced parts such as air compartment, blower fan, air channel, and operating weight only is 30% of a conventional boiler, and basic load is little, and use occasion is unrestricted; 2, heat transfer efficiency height.Above the liquid level of vacuum chamber 2 bottoms, arrange netted water separator, the band water vapour is separated, reduce water amount, improve the heat transfer efficiency of steam and heat exchanger; 3, operating cost is low.Need not to install and vacuumize used magnetic valve, vacuum switch and vavuum pump, easy to installation and maintenance, simultaneously, avoided using the energy loss of these equipment generations, system total efficiency is up to more than 91%, and is higher by 10～20% than conventional boiler, reduces operating cost greatly; 4, boiler internal does not have dirt.Heat medium water of the present utility model boiler be on active service whole during, in the vacuum chamber of sealing, do not advance, do not go out, do not increase, do not subtract, boiler internal does not have dirt, boiler remains unchanged at the run duration heat transfer efficiency; 5, phase transition of vacuum heat exchange, the efficient height.The utility model adopts membrane wall structure, the two side of combustion chamber 1 and rear wall are welded by the water pipe 11 of several round steel spares 12 with several upper and lower end undergauges respectively, vacuum chamber is again a heat-exchanging chamber, water vapour continuous phase transistion reheat heat exchanger, safety, stable, efficient is at the bottom of the exhaust gas temperature; 6, long service life reduces the depreciation loss.The boiler high temperature district separates with the higher-pressure region, can make boiler prolong 2～3 times service life, and design service life reaches 40 years, grows 30 years than conventional boiler, is equivalent to save year depreciation cost 70% for the user.

Description of drawings

Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the vertical view of Fig. 1, and Fig. 4 is the A-A cutaway view of Fig. 2, and Fig. 5 is the D-D cutaway view Amplified image of Fig. 3, and Fig. 6 is the E-E cutaway view of Fig. 1.

The specific embodiment

The specific embodiment one: (referring to the present embodiment of Fig. 1-Fig. 6) by boiler shell 31, heat-insulation layer 32, combustion chamber 1, vacuum chamber 2, interchanger 3, burner 8, smoke box 5, netted water separator 6 and U type baffle plate 7 are formed, the bottom of combustion chamber 1 is provided with the top that water tank 4 and described vacuum chamber 2 place combustion chamber 1, described heat exchanger 3 is installed on the antetheca of vacuum chamber 2, burner 8 is fixedly installed on the antetheca of combustion chamber 1, the two side of described combustion chamber 1 and rear wall are respectively by on several, the water pipe 11 of lower end undergauge and several round steel spares 12 are formed, between two water pipes 11 of upper end to lower end undergauge section start, be welded with round steel spare 12, on each water pipe 11, the lower end is communicated with the water tank 4 of

vacuum chamber

2 and 1 bottom, combustion chamber respectively; Described smoke box 5 is arranged on the lateral wall of 1 bottom, combustion chamber and the outer wall of smoke box 5 is provided with chimney adpting flange 51; U type baffle plate is fixedly installed on the bottom of vacuum chamber 2 inner chambers and the corresponding position of several water pipes 11 upper port, and described netted water separator 6 places the bottom of vacuum chamber 2 inner chambers and fixedlys connected with the antetheca of combustion chamber 1 with the inner edge of U type baffle plate; Burner 8 is an integral combustor, and described burner 8 selects for use German prestige rope proportion expression to regulate burner, and model is L5.The described netted water separator 6 of present embodiment can adopt steel wire, and the also mode that can adopt the steel bar skeleton to be used in combination with steel wire is to satisfy different use needs.

The specific embodiment two: (difference referring to the present embodiment of Fig. 1-Fig. 3) and the specific embodiment one is that described heat exchanger 3 is two, and two heat exchangers 3 are left and right to be installed on the antetheca of vacuum chamber 2 side by side; Have additional condensed water discharge outlet 52 on the base plate of described chimney adpting flange 51 belows.Other composition is identical with the specific embodiment one with annexation.Have additional condensed water discharge outlet 52 on the base plate of the smoke box 5 of the described chimney adpting flange of present embodiment 51 belows, and be equipped with valve, in order to discharge because of reduce condensed water that wash rice gradually goes out and the dirt that falls with chimney height increase exhaust gas temperature, and owing to all be communicated with up and down with atmosphere, can avoid the smoke evacuation difficulty that changes and cause because of ambient pressure, simultaneously, two heat exchangers 3 can guarantee the heat that the steam state working media fully discharges, and further improve the thermal efficiency.

The specific embodiment three: (referring to Fig. 4, Fig. 6) present embodiment and the specific embodiment one or twos' difference is that the two side of the described combustion chamber of being made up of several water pipes 11 and several round steel spares 12 1 is to form away smoke chamber 13 between double-layer structure and the double-layer structure, is welded with round steel spare 12 between the water pipe 11 of the internal layer of lower end to upper end undergauge section start.Other composition is identical with the specific embodiment one or two with annexation.The flue gas that produces when doing on the present embodiment, the gap of elder generation between the undergauge place of water pipe 11 upper ends of internal layer enters and forms smoke chamber 13 between the double-layer structure, the gap of contracting between locating of the lower end of outer field then water pipe 11 enters smoke box 5, after 51 discharges of chimney adpting flange.

The specific embodiment four: (referring to Fig. 3, Fig. 5) present embodiment and the specific embodiment one, two or threes' difference is that it also comprises water seal safety device 9, described water seal safety device 9 is made up of exhaust flange 91, top board 92, O type seal 93, guide post 96 and macromolecule liquid sealant, and top and its exhaust flange 91 that water seal safety device 9 is fixedly installed on vacuum chamber 2 are communicated with the inner chamber of vacuum chamber 2; Have O type seal channel 94 on the upper surface of exhaust flange 91, the bottom of guide post 96 is provided with external screw thread and is threaded with the upper surface of the exhaust flange 91 in O type seal channel 94 outsides, described O type seal 93 is arranged in the O type seal channel 94 on exhaust flange 91 upper surfaces and is marked with the macromolecule liquid sealant, and described top board 92 is arranged on the top of exhaust flange 91 and pilot hole 95 and is sleeved on the guide post 96.Other composition is identical with the specific embodiment one, two or three with annexation.Present embodiment in the course of the work, when vacuum chamber 2 internal pressures are too high, gases overcome the gravity of top board 92 and with top board 92 jack-up upwards in the vacuum chamber 2, when pressure is reduced to operating pressure, top board 92 falls after rise, the sealing that keeps vacuum chamber by O type seal 93 and macromolecule liquid sealant; Work and so forth, can effectively guarantee not have the security and the reliability of the vacuum boiler work of air extractor.The described macromolecule liquid sealant of present embodiment can be selected commercially available Kraft extra high molecular liquid sealant for use.

The vacuum boiler of no air extractor described in the utility model also can use needs as long as satisfy, all in the protection domain of this patent according to actual needs at inside and outside reinforcement or the stiffener of being provided with of boiler.

Claims

1, the vacuum boiler of no air extractor, it comprises the combustion chamber (1) that is arranged in boiler shell (31) and the heat-insulation layer (32), vacuum chamber (2), interchanger (3) and burner (8), the bottom of combustion chamber (1) is provided with the top that water tank (4) and described vacuum chamber (2) place combustion chamber (1), described heat exchanger (3) is installed on the antetheca of vacuum chamber (2), burner (8) is fixedly installed on the antetheca of combustion chamber (1), it is characterized in that it also comprises smoke box (5), netted water separator (6) and U type baffle plate (7), the two side of described combustion chamber (1) and rear wall are respectively by on several, the water pipe of lower end undergauge (11) and several round steel spares (12) are formed, between two water pipes (11) of upper end to lower end undergauge section start, be welded with round steel spare (12), on each water pipe (11), the lower end is communicated with the water tank (4) of vacuum chamber (2) and bottom, combustion chamber (1) respectively; Described smoke box (5) is arranged on the lateral wall of bottom, combustion chamber (1) and the outer wall of smoke box (5) is provided with chimney adpting flange (51); U type baffle plate is fixedly installed on the bottom of vacuum chamber (2) inner chamber and the corresponding position of several water pipes (11) upper port, and described netted water separator (6) places the bottom of vacuum chamber (2) inner chamber and fixedlys connected with the antetheca of combustion chamber (1) with the inner edge of U type baffle plate; Described burner (8) is an integral combustor.

2, the vacuum boiler of no air extractor according to claim 1 is characterized in that described heat exchanger (3) is two, and two heat exchangers (3) are left and right to be installed on the antetheca of vacuum chamber (2) side by side.

3, the vacuum boiler of no air extractor according to claim 1 is characterized in that having additional condensed water discharge outlet (52) on the base plate of described chimney adpting flange (51) below.

4, the vacuum boiler of no air extractor according to claim 1, the two side that it is characterized in that the described combustion chamber of being made up of several water pipes (11) and several round steel spares (12) (1) is to form away smoke chamber (13) between double-layer structure and the double-layer structure, is welded with round steel spare (12) between the water pipe (11) of the internal layer of lower end to upper end undergauge section start.

5, according to the vacuum boiler of claim 1,2,3 or 4 described no air extractors, it is characterized in that it also comprises water seal safety device (9), described water seal safety device (9) is made up of exhaust flange (91), top board (92), O type seal (93), guide post (96) and macromolecule liquid sealant, and top and its exhaust flange (91) that water seal safety device (9) is fixedly installed on vacuum chamber (2) are communicated with the inner chamber of vacuum chamber (2); Have O type seal channel (94) on the upper surface of exhaust flange (91), the bottom of guide post (96) is provided with external screw thread and is threaded with the upper surface of the exhaust flange (91) in O type seal channel (94) outside, described O type seal (93) is arranged in the O type seal channel (94) on exhaust flange (91) upper surface and is marked with the macromolecule liquid sealant, and described top board (92) is arranged on the top of exhaust flange (91) and pilot hole (95) and is sleeved on the guide post (96).