CN208832433U - Superheater occurs for combined steam - Google Patents
Superheater occurs for combined steam Download PDFInfo
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- CN208832433U CN208832433U CN201821183938.1U CN201821183938U CN208832433U CN 208832433 U CN208832433 U CN 208832433U CN 201821183938 U CN201821183938 U CN 201821183938U CN 208832433 U CN208832433 U CN 208832433U
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- steam
- superheater
- tube sheet
- heat exchanger
- diversion pipe
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Abstract
The utility model discloses a kind of combined steams, and superheater occurs, including bobbin carriage, steam generator and steam superheater, the first tube sheet is provided in the bobbin carriage, the bobbin carriage is connected by one end of the second tube sheet and steam generator, the other end of the steam generator is connect with steam superheater, and the steam generator and steam superheater junction are provided with third tube sheet.Two equipment are combined into an equipment by the utility model, so that synthesis gas is exchanged heat in an equipment by the structure type that three tube sheets connect and generates steam and superheated steam, eliminate two high temperature, high pressure header and jointing, reduce multiple possible leakage points, while eliminating the high pressure between two equipment, high temperature pipe, the investment of equipment is saved, arrangement is also more compact, and primary structure is successfully applied in multiple large and medium-sized synthesis ammonia projects.
Description
Technical field
The utility model belongs to chemical technology field, in particular to one kind is the saving energy in chemical plant installations, by high temperature
The heat that gas cooling generates is recycled, and the heat of recycling is used to generate steam and the combined steam of superheated steam occurred
Hot device.
Background technique
In existing chemical plant installations, reducing investment outlay, being safely operated is to need the problem of paying close attention in design.Currently, in order to save
The energy is saved, usually recycles the cooling heat generated of high-temperature gas, the heat of recycling is steamed for generating steam and overheat
Vapour.It under normal circumstances, is using two equipment, an equipment is steamed for generating steam, another equipment for generating overheat
Vapour.
Usually this kind of equipment applying working condition is complicated, and process conditions harshness (high temperature, high pressure) often goes out in the process of running
The problems such as existing exchanger tubes and tubesheets welding point leakage, disassembly maintenance difficulty.It therefore is the higher equipment of accident rate in each device,
It is also more concerned particularly serious equipment.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, device can be saved by providing one kind
Investment reduces leakage point, reduces thermal loss, and superheater occurs for the combined steam of effective guarantee equipment safety.
The technical solution of the utility model is achieved in that superheater occurs for combined steam, it is characterised in that: including
Bobbin carriage, steam generator and steam superheater, are provided with the first tube sheet in the bobbin carriage, and the bobbin carriage passes through the second tube sheet
It is connect with one end of steam generator, the other end of the steam generator is connect with steam superheater, in the steam generation
Device and steam superheater junction are provided with third tube sheet, and the inlet port connection of first tube sheet and diversion pipe is described to lead
The outlet port of flow tube passes through the second tube sheet and third tube sheet, and extends in steam superheater, covers in the diversion pipe periphery
It is connected to heat exchanger tube, forms annular space between the heat exchanger tube and diversion pipe, the open end of the heat exchanger tube is connect with the second tube sheet, institute
The seal head end for stating heat exchanger tube passes through third tube sheet, and extends in steam superheater, the inlet port of the diversion pipe and heat exchange
The seal head end clearance fit of pipe is provided with processing medium inlet connection and processing medium discharge connection on the bobbin carriage, described
Processing medium inlet connection is connected to diversion pipe, and the processing medium discharge connection is connected to annular space, in the steam generator
On be provided with the boiler water inlet and steam (vapor) outlet being connected to the shell side of steam generator, be provided on the steam superheater
The steam inlet being connected to the shell side of steam superheater and superheated steam outlet, the steam (vapor) outlet of the steam generator pass through pipe
Road and the steam inlet of steam superheater connect.
Superheater occurs for combined steam described in the utility model, is socketed with instlated tubular in the diversion pipe periphery,
The instlated tubular is arranged between diversion pipe and heat exchanger tube, described instlated tubular one end between the first tube sheet and the second tube sheet and
It is welded on diversion pipe, the other end opens wide, and the diversion pipe, heat exchanger tube and instlated tubular are that one end is fixed, and the other end is certainly
By expanding.
Superheater occurs for combined steam described in the utility model, between having between the diversion pipe and instlated tubular centainly
Gap, the instlated tubular pass through the locating piece being arranged between heat exchanger tube and instlated tubular and are positioned and fixed, and the heat exchanger tube is logical
The baffle plate of the support plate and steam superheater of crossing steam generator is supported fixation.
Superheater, the bobbin carriage lining in first tube sheet and bobbin carriage occur for combined steam described in the utility model
Connection, the processing medium inlet connection are connect by bobbin carriage lining with diversion pipe, and the bobbin carriage lining and the first tube sheet will be into
Low temperature synthesis gas after mouth high-temperature synthesis gas and heat exchange separates, and the inlet port of first tube sheet and diversion pipe is connected and fixed,
The outlet port free wxpansion of the diversion pipe.
Superheater occurs for combined steam described in the utility model, the plug weldering on the diversion pipe and the first tube sheet
It connects, the plug is sealed by washer and the first tube sheet, and the plugged end is provided with the first plug screw, and first plug screw will block up
Head is pressed on the first tube sheet.
Superheater occurs for combined steam described in the utility model, and second tube sheet is used to send out bobbin carriage and steam
The shell side of raw device separates, and the open end of second tube sheet and heat exchanger tube is connected and fixed, and the other end of the heat exchanger tube is using ellipse
The sealing of circle end socket and free wxpansion.
Superheater occurs for combined steam described in the utility model, and the third tube sheet is used for will be in steam generator
Steam and steam superheater in superheated steam separate, the heat exchanger tube enters steaming from steam generator by third tube sheet
In vapour superheater.
Superheater occurs for combined steam described in the utility model, is arranged between the third tube sheet and heat exchanger tube
There is O-ring seal, the O-ring seal is compressed by the second plug screw.
Superheater occurs for combined steam described in the utility model, and third tube sheet periphery passes through lining and steam
The barrel soldering of superheater.
Two equipment are combined into an equipment by the utility model, so that synthesis gas is existed by the structure type that three tube sheets connect
Heat exchange generates steam and superheated steam in one equipment, eliminates two high temperature, high pressure header and jointing, reduces multiple
Possible leakage point, while the high pressure between two equipment, high temperature pipe are eliminated, the investment of equipment is saved, is arranged also more
Step up to gather, primary structure is successfully applied in multiple large and medium-sized synthesis ammonia projects.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model middle sleeve formula heat exchanger tube.
Fig. 3 is the attachment structure schematic diagram of diversion pipe and the first tube sheet in the utility model.
Fig. 4 is the attachment structure schematic diagram of heat exchanger tube and the second tube sheet in the utility model.
Fig. 5 is the structural schematic diagram that heat exchanger tube passes through at third tube sheet in the utility model.
Fig. 6 is the structural schematic diagram of third tube sheet and steam superheater junction in the utility model.
Marked in the figure: 1 is bobbin carriage, 2 be steam generator, and 3 be steam superheater, and 4 be the first tube sheet, and 5 be the second tube sheet,
6 be third tube sheet, and 7 be diversion pipe, and 8 be heat exchanger tube, and 9 be processing medium inlet connection, and 10 be processing medium discharge connection, and 11 are
Annular space, 12 be boiler water inlet, and 13 be steam (vapor) outlet, and 14 be steam inlet, and 15 export for superheated steam, and 16 be instlated tubular, 17
It is baffle plate for support plate, 18,19 be bobbin carriage lining, and 20 be plug, and 21 be washer, and 22 be the first plug screw, and 23 be O-shaped sealing
Circle, 24 be the second plug screw, and 25 be lining, and 26 be locating piece.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As illustrated in fig. 1 and 2, superheater, including bobbin carriage 1, steam generator 2 and steam mistake occur for a kind of combined steam
Hot device 3 is provided with the first tube sheet 4, one end that the bobbin carriage 1 passes through the second tube sheet 5 and steam generator 2 in the bobbin carriage 1
Connection, the other end of the steam generator 2 are connect with steam superheater 3, in the steam generator 2 and steam superheater 3
Junction is provided with third tube sheet 6, and first tube sheet 4 is connect with the inlet port of diversion pipe 7, the outlet of the diversion pipe 7
Mouth end passes through the second tube sheet 5 and third tube sheet 6, and extends in steam superheater 3, is socketed with and changes in 7 periphery of diversion pipe
Heat pipe 8 forms annular space 11 between the heat exchanger tube 8 and diversion pipe 7, the open end of the heat exchanger tube 8 is connect with the second tube sheet 5,
The seal head end of the heat exchanger tube 8 passes through third tube sheet 6, and extends in steam superheater 3, the inlet port of the diversion pipe 7
With the seal head end clearance fit of heat exchanger tube 8, processing medium inlet connection 9 and processing medium outlet are provided on the bobbin carriage 1
Adapter tube 10, first tube sheet 4 are connect with the bobbin carriage lining 19 in bobbin carriage 1, and the processing medium inlet connection 9 is served as a contrast by bobbin carriage
Cylinder 19 is connect with diversion pipe 7, and the bobbin carriage lining 19 synthesizes import high-temperature synthesis gas with the low temperature after heat exchange with the first tube sheet 4
Gas separates, and the inlet port of first tube sheet 4 and diversion pipe 7 is connected and fixed, and the outlet port of the diversion pipe 7 is freely swollen
Swollen, the processing medium inlet connection 9 is connected to diversion pipe 7, and the processing medium discharge connection 10 is connected to annular space 11, in institute
The boiler water inlet 12 and steam (vapor) outlet 13 for being provided on steam generator 2 and being connected to the shell side of steam generator 2 are stated, described
The steam inlet 14 being connected to the shell side of steam superheater 3 and superheated steam outlet 15, the steaming are provided on steam superheater 3
The steam (vapor) outlet 13 of vapour generator 2 is connect by pipeline with the steam inlet 14 of steam superheater 3.
Security consideration of the utility model for the economy of device, the reasonability of arrangement and whole device, design
Two equipment of original generation steam and superheated steam are combined into an equipment by one combination device.The equipment is only adopted
With a bobbin carriage, realize that synthesis gas is changed in an equipment by the structure type that sleeve-type heat exchanging pipe and three tube sheets connect
Heat generates steam and superheated steam, changes synthesis gas from an equipment and generates steam, enters another using pipeline connection
Equipment generates the process flow of superheated steam, to save the investment of equipment, and reduces multiple possible leakage points, from pipe
Road, arrangement are seen, it is possible to reduce the connecting pipe between two equipment keeps its arrangement more compact, while decreasing connecting tube
The thermal loss that road generates.This equipment uses the structure type of three tube sheets, and three pieces of tube sheets and the connection structure of heat exchanger tube are different,
By the type of attachment different from every piece of tube sheet, guarantee the free wxpansion of heat exchanger tube energy, while guaranteeing easy for installation, checking maintenance is just
Benefit.
Wherein, it is socketed with instlated tubular 16 in 7 periphery of diversion pipe, the setting of instlated tubular 16 is in diversion pipe 7 and heat exchange
Between pipe 8, described 16 one end of instlated tubular is between the first tube sheet 4 and the second tube sheet 5 and is welded on diversion pipe 7, another
End is opened wide, and the diversion pipe 7, heat exchanger tube 8 and instlated tubular 16 are that one end is fixed, other end free wxpansion, to guarantee equipment
Since the differential expansion that the temperature difference generates does not influence the safety of equipment when operation；Between having between the diversion pipe 7 and instlated tubular 16 centainly
Gap, the instlated tubular 16 passes through the locating piece 26 being arranged between heat exchanger tube 8 and instlated tubular 16 and is positioned and fixed, described to change
Heat pipe 8 is supported fixation by the support plate 17 of steam generator 2 and the baffle plate 18 of steam superheater 3.
In the present embodiment, the effect of diversion pipe is that synthesis gas is introduced to heat exchanger tube from bobbin carriage, and synthesis gas is served as a contrast from bobbin carriage
The first tube sheet of cylinder enters diversion pipe, enters heat exchanger tube after the diversion pipe other end comes out, exchanges heat with equipment shell side medium,
So that high-temperature synthesis gas is contacted with steam first generates superheated steam, then exchanges heat again with boiler feedwater and generate steam.
The effect of heat exchanger tube is that synthesis gas is made to exchange heat with boiler feedwater and steam.
The effect of instlated tubular is to separate diversion pipe and heat exchanger tube, and synthesis gas is avoided to carry out between diversion pipe and heat exchanger tube
Heat exchange.When equipment operation, dead gas is generated between diversion pipe and instlated tubular, and synthesis gas is avoided to generate in water conservancy diversion tube wall to spreading
Heat.
As shown in figure 3, the connection structure of diversion pipe and the first tube sheet needs special examine since entrance synthesis gas is high temperature
To consider, the plug 20 on the diversion pipe 7 and the first tube sheet 4 welds, and the plug 20 is sealed by washer 21 and the first tube sheet 4,
20 end of plug is provided with the first plug screw 22, and plug 20 is pressed on the first tube sheet 4 by first plug screw 22, and protection is led
The welding point of flow tube and the first tube sheet avoids the destruction by high-temperature medium, while easy to disassemble in checking maintenance.
As shown in figure 4, second tube sheet 5 for separating bobbin carriage 1 and the shell side of steam generator 2, utilizes the second pipe
Plate bears the pressure of shell journey, and the open end of second tube sheet 5 and heat exchanger tube 8 is connected and fixed, the other end of the heat exchanger tube 8
Using ellipse head sealing and free wxpansion, since the medium temperature that medium comes out after heat exchanger tube exchanges heat is decreased,
Swollen structure type is then sticked on using general intensity weldering with the connection of second piece of tube sheet herein.
As shown in figure 5, the third tube sheet 6 is used for the overheat in the steam and steam superheater 3 in steam generator 2
Steam separates, and the heat exchanger tube 8 is entered in steam superheater 3 by third tube sheet 6 from steam generator 2.Heat exchanger tube herein
Connection with third block tube sheet should guarantee the leakproofness of connection, that is, the medium of steam generator is avoided to enter in superheater,
Guarantee that heat exchanger tube can freely expand again, therefore screw plug structure is added using O-ring seal herein, i.e., in the third tube sheet 6
O-ring seal 23 is provided between heat exchanger tube 8, the O-ring seal 23 is compressed by the second plug screw 24, utilizes O-shaped sealing
The setting of circle, can enable heat exchanger tube free wxpansion again while guaranteeing sealing, and plug screw plays a part of compressing O-ring.
As shown in fig. 6,6 periphery of third tube sheet passes through the barrel soldering of lining 25 and steam superheater 3, to avoid steaming
The steam of vapour generator is entered in steam superheater by the gap of third block tube sheet and cylinder.
The synthesis gas come through upstream equipment passes through the lining that processing medium inlet connection enters this equipment bobbin carriage first, from the
One tube sheet enters diversion pipe, and the annular space of diversion pipe and heat exchanger tube is entered after diversion pipe reaches water conservancy diversion pipe end.High―temperature nuclei
Gas exchanges heat with the steam in steam superheater shell side first in heat exchanger tube, generates superheated steam, and superheated steam passed through
Hot steam outlet enters upstream device.
Synthesis gas continuation steam generator is entered by third tube sheet in heat exchanger tube, in steam generator with its shell side
In boiler feedwater exchange heat, generate steam, steam entered in steam superheater by demister and steam (vapor) outlet.
It is finally synthesizing gas and bobbin carriage is entered by the second tube sheet in heat exchanger tube, enter downstream from processing medium discharge connection and set
It is standby.By above-mentioned process, realizes the heat of an equipment recycling high-temperature medium, generate the purpose of steam and superheated steam.
This combined steam occur superheater due to being that original two equipment is combined into an equipment, tying
Multiple special design structures are used on structure to guarantee that equipment safety is reliable and long period stablizes use, while meeting technique
It is required that.
Superheater occurs for this combined steam while meeting technique requirement, has structure simple, easy processing, installation letter
Easily, structure is reliable, reduces the investment of whole device, and can amplify according to the scale of process unit, and checking maintenance is convenient, equipment
Internals are unfettered, it is ensured that equipment longtime running brings apparent economic benefit to factory.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. superheater occurs for combined steam, it is characterised in that: including bobbin carriage (1), steam generator (2) and steam superheater
(3), it is provided with the first tube sheet (4) in the bobbin carriage (1), the bobbin carriage (1) passes through the second tube sheet (5) and steam generator
(2) one end connection, the other end of the steam generator (2) is connect with steam superheater (3), in the steam generator
(2) it is provided with third tube sheet (6) with steam superheater (3) junction, the air inlet of first tube sheet (4) and diversion pipe (7)
The outlet port of end connection, the diversion pipe (7) passes through the second tube sheet (5) and third tube sheet (6), and extends to steam superheater
(3) it in, is socketed with heat exchanger tube (8) in the diversion pipe (7) periphery, forms annular space between the heat exchanger tube (8) and diversion pipe (7)
(11), the open end of the heat exchanger tube (8) is connect with the second tube sheet (5), and the seal head end of the heat exchanger tube (8) passes through third tube sheet
(6), it and extends in steam superheater (3), the end socket splaying of the inlet port and heat exchanger tube (8) of the diversion pipe (7) is matched
It closes, processing medium inlet connection (9) and processing medium discharge connection (10) is provided on the bobbin carriage (1), the technique is situated between
Matter inlet connection (9) is connected to diversion pipe (7), and the processing medium discharge connection (10) is connected to annular space (11), in the steaming
The boiler water inlet (12) and steam (vapor) outlet (13) being connected to the shell side of steam generator (2) are provided on vapour generator (2),
It is provided with the steam inlet (14) being connected to the shell side of steam superheater (3) on the steam superheater (3) and superheated steam goes out
The steam (vapor) outlet (13) of mouth (15), the steam generator (2) is connected by the steam inlet (14) of pipeline and steam superheater (3)
It connects.
2. superheater occurs for combined steam according to claim 1, it is characterised in that: in the diversion pipe (7) periphery
It is socketed with instlated tubular (16), the instlated tubular (16) is arranged between diversion pipe (7) and heat exchanger tube (8), the instlated tubular (16)
One end is between the first tube sheet (4) and the second tube sheet (5) and is welded on diversion pipe (7), and the other end opens wide, the water conservancy diversion
Managing (7), heat exchanger tube (8) and instlated tubular (16) is that one end is fixed, other end free wxpansion.
3. superheater occurs for combined steam according to claim 2, it is characterised in that: the diversion pipe (7) with it is heat-insulated
There are certain interval, positioning of the instlated tubular (16) by setting between heat exchanger tube (8) and instlated tubular (16) between pipe (16)
Block (26) is positioned and fixed, and the heat exchanger tube (8) passes through the support plate (17) and steam superheater of steam generator (2)
(3) baffle plate (18) is supported fixation.
4. superheater occurs for combined steam according to claim 1, it is characterised in that: first tube sheet (4) and pipe
Bobbin carriage lining (19) connection in case (1), the processing medium inlet connection (9) pass through bobbin carriage lining (19) and diversion pipe (7)
Connection, the bobbin carriage lining (19) and the first tube sheet (4) separate the low temperature synthesis gas after import high-temperature synthesis gas and heat exchange, institute
It states the first tube sheet (4) and the inlet port of diversion pipe (7) is connected and fixed, the outlet port free wxpansion of the diversion pipe (7).
5. superheater occurs for combined steam according to claim 4, it is characterised in that: the diversion pipe (7) and first
Plug (20) welding on tube sheet (4), the plug (20) are sealed by washer (21) and the first tube sheet (4), the plug
(20) end is provided with the first plug screw (22), and plug (20) is pressed on the first tube sheet (4) by first plug screw (22).
6. superheater occurs for combined steam according to claim 1, it is characterised in that: second tube sheet (5) is used for
Bobbin carriage (1) and the shell side of steam generator (2) are separated, second tube sheet (5) connect solid with the open end of heat exchanger tube (8)
Fixed, the other end of the heat exchanger tube (8) is sealed using ellipse head and free wxpansion.
7. superheater occurs for combined steam according to claim 1, it is characterised in that: the third tube sheet (6) is used for
Steam in steam generator (2) and the superheated steam in steam superheater (3) are separated, the heat exchanger tube (8) passes through third
Tube sheet (6) enters in steam superheater (3) from steam generator (2).
8. superheater occurs for combined steam according to claim 1, it is characterised in that: the third tube sheet (6) with
It is provided between heat exchanger tube (8) O-ring seal (23), the O-ring seal (23) is compressed by the second plug screw (24).
9. superheater occurs for combined steam according to claim 1, it is characterised in that: third tube sheet (6) periphery
Pass through the barrel soldering of lining (25) and steam superheater (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821183938.1U CN208832433U (en) | 2018-07-25 | 2018-07-25 | Superheater occurs for combined steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821183938.1U CN208832433U (en) | 2018-07-25 | 2018-07-25 | Superheater occurs for combined steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208832433U true CN208832433U (en) | 2019-05-07 |
Family
ID=66307298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821183938.1U Active CN208832433U (en) | 2018-07-25 | 2018-07-25 | Superheater occurs for combined steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208832433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469830A (en) * | 2019-08-19 | 2019-11-19 | 中国原子能科学研究院 | Sodium-cooled fast reactor straight tube counter flow steam generator |
| CN111895815A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Combined waste heat recovery device |
| CN112696652A (en) * | 2020-12-28 | 2021-04-23 | 倪加福 | Waste heat boiler |
-
2018
- 2018-07-25 CN CN201821183938.1U patent/CN208832433U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469830A (en) * | 2019-08-19 | 2019-11-19 | 中国原子能科学研究院 | Sodium-cooled fast reactor straight tube counter flow steam generator |
| CN111895815A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Combined waste heat recovery device |
| CN112696652A (en) * | 2020-12-28 | 2021-04-23 | 倪加福 | Waste heat boiler |
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