CN208804390U - Heat exchanger restricting orifice structure - Google Patents
Heat exchanger restricting orifice structure Download PDFInfo
- Publication number
- CN208804390U CN208804390U CN201821524911.4U CN201821524911U CN208804390U CN 208804390 U CN208804390 U CN 208804390U CN 201821524911 U CN201821524911 U CN 201821524911U CN 208804390 U CN208804390 U CN 208804390U
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- China
- Prior art keywords
- tube sheet
- heat exchanger
- gasket
- tube
- choke block
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Abstract
The utility model discloses a kind of heat exchanger restricting orifice structures, a kind of heat exchanger restricting orifice structure, including tube sheet, more heat exchanger tubes up and down are installed, the lower section of tube sheet is equipped with gasket, and the lower section of gasket is equipped with choke block on tube sheet, tube sheet, gasket are fixedly connected with choke block, and gasket is equipped with multiple through holes, choke block is equipped with multiple throttle orifices, and the quantity and location arrangements of through hole and throttle orifice are corresponded with the heat exchanger tube on tube sheet.It is very necessary using throttle structure provided by the utility model, its safety coefficient is high, good throttle effect, the processing is simple, and dismounting maintenance is simple and convenient, simplifies heat exchanger tube and checks cleaning, reduce cleaning maintenance load, shorten the washing and cleaning operation time, reduce washing and cleaning operation risk, and also avoid because dismounting restrictor ring repeatedly welding and exchange damage caused by heat pipe or tube sheet.
Description
Technical field
The utility model relates to chemical equipment technical fields, are related to chemical production device, specially a kind of to be convenient for heat exchanger tube
The heat exchanger restricting orifice structure of cleaning and replacement.
Background technique
Circulation this process of rectifying is had in chemical production process, rectifying column and recirculation heater below are to close
Button apparatus, including restrictor ring need to be increased before heat exchanger tube all to increase material there are also in a lot of other lifting/lowering membrane type heaters
Flow velocity achievees the purpose that improve efficiency to form liquid film in heating tube.Traditional method is in each heat exchange nozzle spot welding
Restrictor ring, specific structure are as shown in Figure 1.Material corrosion, wash away and greasy dirt etc. due to, partial throttling ring need to remove replacement,
Heat exchanger tube also needs to carry out annual cleaning.In real use process, each overhaul of the heater need to clean dirt in heat exchanger tube.But
Because the presence of restrictor ring makes the dirt being washed out in giant flushing water and heat exchanger tube be difficult to smoothly flow out, so every time
The restrictor ring on heat exchanger tube will be removed one by one by polishing spot welding position, spot welding reduction again after cleaning is completed.Scavenger
Sequence is complicated, and workload is huge, and polishing, spot welding are serious to equipment damage repeatedly, and especially the activity duration is long, risk is big, to peace
Full production causes grave danger.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of heat exchanger restricting orifice structure, can make to exchange heat
Pipe cleaning is simple and fast, moreover it is possible to and guarantee cleaning effect, greatly reduce maintenance load, shorten the activity duration, reduces operating risk,
It guarantees safe production.
Technical solution adopted in the utility model is a kind of heat exchanger restricting orifice structure, including tube sheet, is pacified on tube sheet
Heat exchanger tube equipped with more up and down, the lower section of tube sheet are equipped with gasket, and the lower section of gasket is equipped with choke block, tube sheet, close
Packing is fixedly connected with choke block, and gasket be equipped with multiple through holes, choke block be equipped with multiple throttle orifices, through hole and
The quantity and location arrangements of throttle orifice on tube sheet heat exchanger tube correspond, the internal diameter > throttle orifice of the heat exchanger tube it is interior
Diameter.
Further, the internal diameter of the internal diameter > throttle orifice of the internal diameter > through hole of the heat exchanger tube.
Further, multiple screw holes are machined on the tube sheet, by bolt and tightly between tube sheet, gasket and choke block
Gu nut is fixed, bolt one end is fixed with screw hole, and the other end is fixed by fastening nut.
Further, the fastening nut is double nut, and bolt and fastening nut are two-phase steel material.
Further, the position of plane where the tube sheet bottom is lower than heat exchanger tube bottom end face position.
Further, also there are two the dowel hole of circumferentially asymmetric arrangement, tube sheets, gasket for processing on the tube sheet
It is positioned between choke block using positioning pin and location hole mating connection.
The utility model has the following beneficial effects:
1, the utility model is due to using the above structure, instead of the restrictor ring for being mounted on heat exchange nozzle, using being mounted on
Restricting orifice on tube sheet reaches restriction effect.Before exchange heat pipe is cleaned, restricting orifice only need to be removed, can be made
It is cleaned one by one with high pressure washing hydraulic giant heat exchanging pipe, water and dirt can flow out unblockedly, to guarantee cleaning effect, clearly
It washes into and checks that errorless later return restricting orifice fills, it is simple and fast.
2, be using throttle structure provided by the utility model it is very necessary, safety coefficient is high, and good throttle effect adds
Work is simple, and dismounting maintenance is simple and convenient, simplifies heat exchanger tube and checks cleaning, reduces cleaning maintenance load, shorten
The washing and cleaning operation time reduces washing and cleaning operation risk, and also avoid because dismounting restrictor ring repeatedly welding and exchange heat pipe
Or it is damaged caused by tube sheet.
Detailed description of the invention
Attached drawing 1 is throttle structure schematic diagram traditional described in background technique.
Attached drawing 2 is the utility model structure diagram.
Specific embodiment
Further illustrate the utility model below with reference to embodiment, but the range of the requires of the utility model protection not office
It is limited to the range of embodiment statement.
As shown in Fig. 2, a kind of heat exchanger restricting orifice structure, including tube sheet 2, more are equipped with up and down on tube sheet 2
Heat exchanger tube 1, the lower section of tube sheet 2 is equipped with gasket 4, and the lower section of gasket is equipped with choke block 3, tube sheet 2, gasket 4 and throttling
Plate 3 is fixedly connected, and gasket 4 is equipped with multiple through hole 4-1, and choke block is equipped with multiple throttle orifice 3-1, through hole 4-1
It is corresponded with the heat exchanger tube 1 on tube sheet 2 with the quantity and location arrangements of throttle orifice 3-1, the internal diameter > throttle orifice of heat exchanger tube
Internal diameter.Specific throttle orifice aperture is depending on the needs of operation and production technology.
In preferred scheme, the internal diameter of the internal diameter > throttle orifice of the internal diameter > through hole of the heat exchanger tube.It plays well
Restriction effect.The gasket is enhancing tetrafluoro plate.
In preferred scheme, it is machined with multiple screw hole 2-1 on the tube sheet 2, passes through between tube sheet, gasket and choke block
Bolt 5 and fastening nut 6 are fixed, and 5 one end of bolt is fixed with screw hole 2-1, and the other end is fixed by fastening nut.
Further, the fastening nut is double nut, effectively prevent loosening, bolt 5 and fastening nut 6 are dual phase steel
Material.
In preferred scheme, the position of plane is lower than 1 bottom end face position of heat exchanger tube where 2 bottom of tube sheet.
It is welded between tube sheet 2 and heat exchanger tube, and heat exchanger tube bottom welding seam position is higher than the position of 2 bottom of tube sheet place plane, makes
Obtaining gasket can smoothly install, and can effectively be sealed by gasket between tube sheet and choke block.
It is also processed in preferred scheme, on the tube sheet 2 there are two the dowel hole of circumferentially asymmetric arrangement, tube sheet 2,
It is positioned between gasket and choke block using positioning pin and location hole mating connection.
In specific embodiment, throttling board diameter is less than channel flange internal diameter, thickness 8mm or bigger；Gasket diameter with
Choke block is identical, thickness 3-4mm, first installs gasket 4, then install choke block 3, then screws on the nut for being screwed into bolt, will be close
Packing, choke block are connected on tube sheet, are pressed and scraped.By bolt and positioning pin realize total Fast Installation and
Disassembly.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of heat exchanger restricting orifice structure, it is characterised in that: including tube sheet (2), be equipped with about more on tube sheet (2) and pass through
Logical heat exchanger tube (1), the lower section of tube sheet (2) are equipped with gasket (4), and the lower section of gasket is equipped with choke block (3), tube sheet (2), close
Packing (4) is fixedly connected with choke block (3), and gasket (4) is equipped with multiple through holes (4-1), and choke block is equipped with multiple
Throttle orifice (3-1), the quantity and location arrangements of through hole (4-1) and throttle orifice (3-1) with the heat exchanger tube (1) on tube sheet (2)
It corresponds, the internal diameter of the internal diameter > throttle orifice of the heat exchanger tube.
2. structure according to claim 1, it is characterised in that: the internal diameter > of the internal diameter > through hole of the heat exchanger tube throttles
The internal diameter in hole.
3. structure according to claim 1, it is characterised in that: be machined with multiple screw holes (2-1), manage on the tube sheet (2)
Fixed by bolt (5) and fastening nut (6) between plate, gasket and choke block, bolt (5) one end and screw hole (2-1) are fixed,
The other end is fixed by fastening nut.
4. structure according to claim 3, it is characterised in that: the fastening nut is double nut, bolt (5) and fastening spiral shell
Female (6) are two-phase steel part.
5. structure according to claim 1, it is characterised in that: the position of plane is lower than and changes where tube sheet (2) bottom
Heat pipe (1) bottom end face position.
6. structure according to claim 1, it is characterised in that: also there are two circumferentially non-right for processing on the tube sheet (2)
The dowel hole for claiming arrangement is determined between tube sheet (2), gasket and choke block using positioning pin and location hole mating connection
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821524911.4U CN208804390U (en) | 2018-09-18 | 2018-09-18 | Heat exchanger restricting orifice structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821524911.4U CN208804390U (en) | 2018-09-18 | 2018-09-18 | Heat exchanger restricting orifice structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804390U true CN208804390U (en) | 2019-04-30 |
Family
ID=66237351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821524911.4U Active CN208804390U (en) | 2018-09-18 | 2018-09-18 | Heat exchanger restricting orifice structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791064A (en) * | 2021-01-26 | 2022-07-26 | 中国航发商用航空发动机有限责任公司 | Throttling assembly |
-
2018
- 2018-09-18 CN CN201821524911.4U patent/CN208804390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791064A (en) * | 2021-01-26 | 2022-07-26 | 中国航发商用航空发动机有限责任公司 | Throttling assembly |
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