CN210345438U - Novel spiral case type superheated steam boiler - Google Patents

Novel spiral case type superheated steam boiler Download PDF

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Publication number
CN210345438U
CN210345438U CN201920587517.3U CN201920587517U CN210345438U CN 210345438 U CN210345438 U CN 210345438U CN 201920587517 U CN201920587517 U CN 201920587517U CN 210345438 U CN210345438 U CN 210345438U
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China
Prior art keywords
smoke box
pipeline
steam boiler
flue gas
superheated steam
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CN201920587517.3U
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Chinese (zh)
Inventor
高庆文
刘小玲
乔剑
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Foster Boiler Co.,Ltd.
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Anyang Firstd Boiler Co ltd
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Abstract

The utility model belongs to the technical field of steam equipment, specifically disclose a novel spiral case formula superheated steam boiler, including ordinary horizontal steam boiler, with be provided with the over heater in the preceding smoke box that flue gas pipeline in ordinary horizontal steam boiler's the furnace links to each other, ordinary horizontal steam boiler's saturated steam export with the access connection of over heater, just flue gas pipeline divide into first pipeline and second pipeline, first pipeline intercommunication preceding smoke box and ordinary horizontal steam boiler's furnace makes high temperature flue gas gets into preceding smoke box, the second pipeline intercommunication preceding smoke box and chimney, just be provided with the outlet channel who communicates with the second pipeline in the preceding smoke box, be provided with the inlet port of intercommunication preceding smoke box on outlet channel's the pipe wall, the opening size of inlet port is less than the mouth of pipe size of second pipeline. The utility model discloses ensure that the high temperature flue gas fully flows in the smoke box in the front, prolong the dwell time of high temperature flue gas in the front in the smoke box, increase exchange efficiency.

Description

Novel spiral case type superheated steam boiler
Technical Field
The patent of the utility model relates to a steam equipment's technical field, especially a novel spiral case formula superheated steam boiler.
Background
At present, most of common boilers adopt a mode of directly heating liquid by using a combustor, combustion heat of combustion products is directly transferred to water flowing in a pipeline in a heat exchanger, and the boiler has the advantage of being capable of increasing the temperature of output hot water to a high temperature, so that saturated steam is obtained for industrial use.
However, most of the common horizontal steam boilers on the market use the combustion heat generated by the burner to heat the liquid in the boiler body, in order to prevent the flue gas with waste heat generated by the burner from being directly discharged through the chimney, the waste heat of the flue gas is wasted, in order to use the waste heat of the flue gas, a flue gas pipeline is arranged in the boiler, the flue gas pipeline is sequentially connected with the hearth, the front smoke box and the chimney, and the liquid in the boiler body is heated by the waste heat of the flue gas, however, because the boilers intelligently produce saturated steam, in order to obtain superheated steam, the circulating heat efficiency of the whole steam power device can be applied and improved in industrial production, so that a superheater is arranged in the front smoke box, the saturated steam in the superheater is heated by the high-temperature flue gas in the flue gas pipeline to obtain superheated steam, however, because of the old type, the space of the front smoke box is very large, because the space of the front smoke box is very large and the smoke pipelines are positioned at the same side of the front smoke box, high-temperature smoke enters another smoke pipeline from one smoke pipeline to cause the fast flow rate of the smoke, and because of the blockage of the superheater, the smoke at the corners in the front smoke box does not flow, and the temperature at each position is inconsistent, so that the smoke and the superheater do not have enough time to cause low heat exchange efficiency, superheated steam coming out of the superheater does not reach the temperature of the industrial standard, the working efficiency is low, and the working requirement of industrial production cannot be met.
Based on this, how to improve the heat exchange efficiency of the superheater in the front smoke box to meet the requirement of industrial production is a technical problem to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model aims at providing a novel spiral case formula superheated steam boiler.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a novel spiral case formula superheated steam boiler, including ordinary horizontal steam boiler, with be provided with the over heater in the preceding smoke box that flue gas pipeline in ordinary horizontal steam boiler's the furnace links to each other, ordinary horizontal steam boiler's saturated steam export with the access connection of over heater, just flue gas pipeline divide into first pipeline and second pipeline, first pipeline intercommunication preceding smoke box and ordinary horizontal steam boiler's furnace makes high temperature flue gas gets into preceding smoke box, the second pipeline intercommunication preceding smoke box and chimney, just be provided with the outlet channel with the second pipeline intercommunication in the preceding smoke box, be provided with the inlet port of intercommunication preceding smoke box on outlet channel's the pipe wall, the opening size of inlet port is less than the mouth of pipe size of second pipeline.
Further, the air outlet pipeline is of an annular structure and surrounds the superheater.
Further, preceding smoke box is sandwich structure, the intermediate layer with first pipe connection just sets up the venthole on the interbedded inner wall.
Further, the opening size of the air outlet hole is smaller than the pipe orifice size of the first pipeline.
Furthermore, the air outlet is provided with a fan blade, the rotating shaft of the fan blade is connected with the front smoke box through a support, and the high-temperature gas flowing out of the air outlet drives the fan blade to rotate.
Furthermore, a heating device for assisting in heating the superheater is further arranged on the front smoke box.
Further, the heating device comprises a heating wire, and the heating wire is electrically connected with an external power supply.
Further, the heating wire is wound on the superheater.
Compared with the prior art, the utility model provides a novel spiral case formula superheated steam boiler structure is distinctive, convenient operation, through set up in the preceding smoke box the outlet channel, thereby make the high temperature flue gas in the preceding smoke box disperse and get into outlet channel from a plurality of inlet ports on the outlet channel, then get into the chimney from the second channel, make the flue gas in the preceding smoke box fully flow, increase the contact time of high temperature flue gas and over heater and make the flue gas temperature everywhere in the preceding smoke box be in the maximum temperature all the time to increase heat exchange efficiency, thereby avoid the high temperature flue gas get into the second channel directly after getting into the preceding smoke box from the first channel and lead to the flue gas part in the preceding smoke box to flow and cause the velocity of flow too fast and lead to the heat exchange efficiency low; in addition, the opening size of the air inlet holes is smaller than the pipe orifice size of the second pipeline, so that the air inflow of a single air inlet hole is smaller than the air outflow of the first pipeline, the internal flow is balanced, the smoke in the front smoke box is ensured to enter from each air inlet hole in a dispersing manner, the high-temperature smoke is ensured to flow fully in the front smoke box, the retention time of the high-temperature smoke in the front smoke box is prolonged, and the exchange efficiency is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a novel spiral shell type superheated steam boiler.
FIG. 2 is a schematic structural diagram of a front smoke box in a novel spiral case type superheated steam boiler.
FIG. 3 is a schematic diagram of the installation of a front smoke box in a novel volute type superheated steam boiler.
Fig. 4 is a schematic structural diagram of a front smoke box in a novel spiral case type superheated steam boiler according to another embodiment.
Fig. 5 is a schematic view showing the installation of a front smoke box in the novel spiral case type superheated steam boiler shown in fig. 4.
In the figure: 1. the boiler comprises a common horizontal steam boiler, a hearth, a front smoke box, a superheater, an outlet, an inlet, an outlet, a steam outlet, a first pipeline, an air outlet channel, a second pipeline, an air inlet, an interlayer and an air outlet, wherein the hearth is 2, the front smoke box is 3, the superheater is 4, the outlet is 5, the inlet is 6, the steam outlet is 7, the first pipeline is 8, the air outlet channel is.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 2 and 3, a new volute superheated steam boiler according to a preferred embodiment of the present invention comprises a normal horizontal steam boiler 1, wherein a superheater 4 is disposed in a front smoke box 3 connected to a flue gas pipeline in a furnace 2 of the normal horizontal steam boiler 1, a saturated steam outlet 7 of the normal horizontal steam boiler 1 is connected to an inlet 6 of the superheater 4, that is, the saturated steam in the superheater 4 is secondarily heated by high-temperature flue gas flowing into the front smoke box 3 through the furnace 2, so that the saturated steam is heated into superheated steam, an outlet 5 of the superheater 4 is connected to an industrial device for industrial production, and the flue gas pipeline is divided into a first pipeline 8 and a second pipeline 10, the first pipeline 8 communicates the front smoke box 3 and the furnace 2 of the normal horizontal steam boiler 1, so that the high-temperature flue gas enters the front smoke box 3, namely, the first pipeline 8 is used for conveying high-temperature flue gas generated in the hearth 2 into the front smoke box 3, the second pipeline 10 is communicated with the front smoke box 3 and a chimney, namely, the flue gas in the front smoke box 3 is discharged from the chimney through the second pipeline 10, an air outlet channel 9 communicated with the second pipeline 10 is arranged in the front smoke box 3, an air inlet 11 communicated with the front smoke box 3 is arranged on the pipe wall of the air outlet channel 9, so that the flue gas in the front smoke box 3 is dispersed and enters the second pipeline 10 from the air inlet 11 and then is discharged from the second pipeline 10, the flue gas in the front smoke box 3 fully flows, the contact time of the high-temperature flue gas and the superheater 4 is increased, and the flue gas temperature in the front smoke box 3 is always at the highest temperature to increase the heat exchange efficiency, thereby preventing the high-temperature flue gas from directly entering the front smoke box 3 from the first channel and then directly entering the second channel to cause the partial flow of the flue gas in the front smoke box 3 and cause the over-flow velocity to cause the low heat exchange efficiency, and the opening size of the air inlet 11 is smaller than the pipe orifice size of the second pipeline 10, so that the air input of the single air inlet 11 is smaller than the air output of the first pipeline 8, the internal flow is balanced, the smoke in the front smoke box 3 is ensured to enter from each air inlet 11 in a dispersing way, the high-temperature smoke is ensured to flow fully in the front smoke box 3, the retention time of the high-temperature smoke in the front smoke box 3 is prolonged, the exchange efficiency is increased, the superheated steam coming out of the superheater 4 reaches the temperature of the industrial standard, and the problems of small space of the front smoke box 3 and low heat exchange efficiency caused by overhigh smoke flow speed are solved.
In this embodiment, the pipeline of giving vent to anger is the loop configuration and will superheater 4 surrounds, promptly the pipeline of giving vent to anger sets up on preceding smoke box 3's the inner wall, encircle simultaneously around superheater 4, inlet port 11 dispersion sets up on the lateral wall of the pipeline of giving vent to anger, make the flue gas that gets into preceding smoke box 3 through first pipeline 8 get into the pipeline of giving vent to anger from a plurality of inlet ports 11 respectively, then get into second pipeline 10, guarantee the flue gas is in fully flow in preceding smoke box 3, extrude the flue gas after will getting into preceding smoke box 3 cooling earlier, make in preceding smoke box 3 everywhere all be in the highest temperature of flue gas, guarantee the difference in temperature of the saturated vapor in flue gas and the superheater 4, improve heat exchange efficiency.
As shown in fig. 4 and 5, in one embodiment, the front smoke box 3 is of a sandwich layer 12 structure, the sandwich layer 12 is connected to the first pipe 8, and an air outlet 13 is arranged on an inner wall of the sandwich layer 12, that is, the first pipe 8 conveys the high-temperature gas in the furnace 2 into the sandwich layer 12, then the smoke in the sandwich layer 12 is dispersed through the air outlet 13 into the front smoke box 3 to contact with the superheater 4, and the air outlet 13 is dispersed into the front smoke box 3 to further strengthen the flow and mix the smoke in the front smoke box 3, so as to ensure that the smoke in the front smoke box 3 is always at the highest temperature, and in addition, the sandwich layer 12 is equivalent to an insulating layer, so as to reduce the heat exchange between the front smoke box 3 and the external environment, thereby ensuring the temperature difference between the internal smoke and the superheater 4, and improving the heat exchange efficiency.
In the above embodiment, the opening size of the air outlet holes 13 is smaller than the orifice size of the first pipe 8, that is, the flow rate through the single air outlet hole 13 is smaller than the flow rate of the first pipe 8, so as to ensure the pressure at each air outlet hole 13.
For better technical effect, when concrete implementation, venthole 13 department is provided with the flabellum, more specifically, the pivot of flabellum passes through the support and is connected with preceding smoke box 3, the high temperature flue gas drive that venthole 13 flows out the flabellum rotates, through the rotation dispersion of flabellum the flue gas flows to everywhere in preceding smoke box 3 respectively, makes everywhere gas intensive mixing in preceding smoke box 3 flows.
In one embodiment, a heating device for assisting in heating the superheater 4 is further arranged on the front smoke box 3, and when the temperature in the front smoke box 3 does not reach the requirement for heating the superheater 4 to produce superheated steam, the superheater 4 is assisted and heated by the heating device so as to meet the requirement.
Specifically, heating device includes the heating wire, the heating wire winding is in on the over heater 4, the heating wire is connected with external power supply electricity, through heating wire circular telegram heat production, gives over heater 4 with the heat transfer that produces and heats, and through the winding mode in order to increase the effective length of heating wire and with over heater 4's area of contact, improve heating efficiency.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A novel spiral shell type superheated steam boiler comprises a common horizontal steam boiler (1) and is characterized in that a superheater (4) is arranged in a front smoke box (3) connected with a flue gas pipeline in a hearth (2) of the common horizontal steam boiler (1), a saturated steam outlet (7) of the common horizontal steam boiler (1) is connected with an inlet (6) of the superheater (4), the flue gas pipeline is divided into a first pipeline (8) and a second pipeline (10), the first pipeline (8) is communicated with the front smoke box (3) and the hearth (2) of the common horizontal steam boiler (1) to enable high-temperature flue gas to enter the front smoke box (3), the second pipeline (10) is communicated with the front smoke box (3) and a chimney, an air outlet channel (9) communicated with the second pipeline (10) is arranged in the front smoke box (3), and an air inlet hole (11) communicated with the front smoke box (3) is formed in the pipe wall of the air outlet channel (9), the opening size of the air inlet hole (11) is smaller than the size of the pipe orifice of the second pipeline (10).
2. A new spiral shell superheated steam boiler according to claim 1, characterized in that the outlet channel (9) is of annular structure and surrounds the superheater (4).
3. A new type spiral shell superheated steam boiler according to claim 1, characterized in that the front smoke box (3) is a sandwich structure, the sandwich layer (12) is connected with the first pipe (8) and the inner wall of the sandwich layer (12) is provided with air outlet holes (13).
4. A new spiral shell superheated steam boiler according to claim 3, characterized in that the size of the opening of the outlet holes (13) is smaller than the size of the opening of the first tubes (8).
5. A novel volute type superheated steam boiler according to claim 3, wherein the air outlet (13) is provided with a fan blade, the rotating shaft of the fan blade is connected with the front smoke box through a bracket, and the high-temperature flue gas flowing out of the air outlet (13) drives the fan blade to rotate.
6. A new type spiral shell type superheated steam boiler according to claim 1, characterized in that the front smoke box (3) is also provided with a heating device for assisting the heating of the superheater (4).
7. A new volute superheated steam boiler according to claim 6, wherein the heating means comprises heating wires electrically connected to an external power source.
8. A new spiral shell type superheated steam boiler according to claim 7, characterized in that the heating wire is wound on the superheater (4).
CN201920587517.3U 2019-04-26 2019-04-26 Novel spiral case type superheated steam boiler Active CN210345438U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920587517.3U CN210345438U (en) 2019-04-26 2019-04-26 Novel spiral case type superheated steam boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920587517.3U CN210345438U (en) 2019-04-26 2019-04-26 Novel spiral case type superheated steam boiler

Publications (1)

Publication Number Publication Date
CN210345438U true CN210345438U (en) 2020-04-17

Family

ID=70180644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920587517.3U Active CN210345438U (en) 2019-04-26 2019-04-26 Novel spiral case type superheated steam boiler

Country Status (1)

Country Link
CN (1) CN210345438U (en)

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GR01 Patent grant
CP03 "change of name, title or address"

Address after: 456150 middle section of foster Avenue, new manufacturing industrial park, Tangyin County, Anyang City, Henan Province

Patentee after: Foster Boiler Co.,Ltd.

Address before: 456174 middle section of foster Avenue, new manufacturing industrial park, Anyang City, Henan Province

Patentee before: ANYANG FIRSTD BOILER Co.,Ltd.

CP03 "change of name, title or address"