CN2495974Y - Buffer type heat exchanger resisting fluid scouring - Google Patents
Buffer type heat exchanger resisting fluid scouring Download PDFInfo
- Publication number
- CN2495974Y CN2495974Y CN 01250083 CN01250083U CN2495974Y CN 2495974 Y CN2495974 Y CN 2495974Y CN 01250083 CN01250083 CN 01250083 CN 01250083 U CN01250083 U CN 01250083U CN 2495974 Y CN2495974 Y CN 2495974Y
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- CN
- China
- Prior art keywords
- heat exchanger
- fluid
- type heat
- distribution grid
- buffer
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Abstract
The utility model relates to a buffer type heat exchanger resisting fluid scouring which is characterized in that a double decked distributed buffer board structure(3-0) is positioned at the shell side opening(1) of a tube bundle 5 to retard the direct scouring of the shell side medium to a heat exchanger guide shell and the tube wall; even distributed small holes are arranged on an distributing plate and a lower distributing plate to reduce the resistance of the fluid by a large margin. The utility model is used wildly in the cooling devices of petroleum industry, chemical engineering industry, electrical power industry and so on.
Description
The utility model relates to the shell-and-tube cold exchange device in the petrochemical plant.
Cold exchange device in petrochemical plant owing to generally in fluid have complicated corrosive medium, as recirculated water when purifying water with the Cl that remains in after liquid chlorine or the chlorine sterilization in the water
-Oil product is adding the H that decomposes out man-hour
2S, Cl
-Deng, all equipment is constituted certain corrosion harmfulness, add directly washing away of heat exchanger entrance fluid, and constituted the typical erosion corrosion form of heat exchanger.Directly show the erosion corrosion of heat exchanger shell pass inlet fluid to heat exchanger tube in impingement baffle and the impingement baffle, heat exchanger tube side inlet fluid is to the erosion corrosion of bobbin carriage and mouth of pipe weld seam.Concerning whole heat exchanger, the most serious just above-mentioned position of losing efficacy.How to solve the harm that erosion corrosion heat exchanging device brings,, only solve in the general design, promptly increase corrosion allowance, but still there is the harm of further washing away in the tube head weld seam from the wall thickness that increases bobbin carriage to washing away of tube side; Washing away of shell side still there is not optimal design scheme.I once did to inquire into to the erosion corrosion problem of shell side, and had declared a utility model patent " heat exchanger water conservancy diversion buffer board ", the patent No. 002307707 in 2000.The utility model is further replenishing of heat exchanging device water conservancy diversion buffer board patent and perfect.
The purpose of this utility model is the buffer-type structure of a kind of heat exchanger of design, with reduce and slowing down fluid to directly the washing away of equipment, delay the service life of equipment.The utility model is by following scheme implementation:
1. be slowing down fluid washing away to shell side guide shell or impingement baffle, reduce the wash away resistance of fluid to guide shell or impingement baffle, double-deck distributed buffering plate structure (3-0) 1. is set, to replace the impingement baffle or the guide shell (see figure 1) of tube bank in the shell side inlet in the shell side porch.Double-deck distributed buffering plate structure (3-0) is specially (Fig. 2): having uniform aperture on the distribution grid up and down, be less than 40% in the distribution grid perforate up and down, last distribution grid (3-1) aperture is 6～20mm.Following distribution grid (3-3) aperture is 3～12mm.Connect with gusset (3-2) between the distribution grid up and down, also can offer small sircle hole on the gusset (3-2) less than 20mm.
2. be slowing down fluid washing away to tube side bobbin carriage dividing plate (2-3) and tube head weld seam, reduce the wash away resistance of fluid to bobbin carriage dividing plate (2-3), buffer-type distributing plate structure (2-0) is set in the bobbin carriage 2. of tube side porch, and change the direction of washing away of fluid, further slowing down fluid recoils to the resistance that washes away of tube head weld seam through bobbin carriage dividing plate (2-3).Distributed buffering plate structure Fig. 1 (2-0) is specially (Fig. 3) in the bobbin carriage: 2. locate to establish the orifice plate (2-1) that a herringbone distributes along heat exchanger axial length direction at the bobbin carriage inlet, be dispensed into the fluid of oral area position from the both sides of chevron shaped distribution grid, establish the anti-punched-plate (2-2) of an anti-side blow at the place, base of chevron shaped distribution grid.Have uniform aperture on the anti-punched-plate (2-2) in chevron shaped distribution orifice (2-1) and base, percent opening is less than 40%, and opening diameter is 5～30mm, and the length L of herringbone distribution orifice and opening h must be greater than the diameters of bobbin carriage inlet tube D.
Be described further below in conjunction with diagram:
Fig. 1 heat exchanger is always schemed: part 1 is that distributed buffering plate structure, part 3-0 are that shell side entrance double-layer distributed buffering plate structure, part 4 are tube bank for housing, part 5 in the bobbin carriage for bobbin carriage, part 2-0.
Fig. 2 shell side distributed buffering plate: part 3-1 is that last distribution grid, part 3-2 are that gusset, part 3-3 are that distribution grid, part 3-4 are heat exchanger tube down.
The chevron shaped buffer board of Fig. 3 bobbin carriage: part 2-1 is that herringbone distribution orifice, part 2-2 are the bobbin carriage dividing plate for anti-side blow orifice plate, part 2-3.
In the shell side of heat exchanger (Fig. 2), after 1. fluid enters housing through inlet tube, it washes away resistance and is disperseed by the two-layer buffering distribution grid that has aperture, part fluid is arranged into heat exchanger tube (3-4) outer wall equably by the aperture of the even cloth of distribution grid, and another part fluid is then owing to be subjected to the influence of distribution grid percent opening to enter shell side along guide shell breach tube sheet inboard and cylinder inboard wall under reaction.Segment fluid flow is arranged into heat exchanger tube (3-4) outer wall equably by the uniform aperture of distribution grid, not only avoided the huge fluid resistance that guide shell or impingement baffle bore in the former design, and avoided having improved the heat exchange effect because former guide shell or impingement baffle barrier fluid make the reverse side of guide shell or impingement baffle form the liquid stagnation region.
In the tube side of heat exchanger (Fig. 3); after 2. fluid enters bobbin carriage through inlet tube; it washes away the chevron shaped buffering distribution grid (2-1) that resistance had aperture and disperses; because the direction of its chevron shaped buffering distribution grid is the axial setting along heat exchanger shell; making the fluid that enters bobbin carriage avoid behind bobbin carriage dividing plate (2-3) the tube head weld seam produced washes away; wash away direction just along two side flow of chevron shaped buffering distribution grid, the tube head weld seam has been played the most effective protection.For fear of without the further side blow of the fluid that distributes to the bobbin carriage cylindrical shell, should respectively add an orifice plate (2-2) in the both sides of chevron shaped buffer board, further slowing down fluid washes away resistance.
The utlity model has novel, simple in structure, make easily characteristics, because the weight of the buffer board that increases Only account for the plate small part of equipment, can't increase the burden of equipment, to also no impact of investment of equipment. The utility model---one The buffer type heat exchanger of kind of resisting fluid scouring can extensively be used for the switch that changes of the industry such as oil chemical industry.
Claims (2)
1. buffer-type heat exchanger that the anti-current body washes away, it is made of bobbin carriage 1, housing 4,5 of tube banks, it is characterized in that: 1. its described buffer-type heat exchanger is provided with double-deck distributed buffering plate structure (3-0) for the shell side porch in tube bank 5, have uniform aperture at distribution grid up and down, percent opening is less than 40%, the aperture of last distribution grid (3-1) is 6～20mm, and the aperture of following distribution orifice (3-3) is 3～12mm, connects with gusset (3-2) between the distribution grid up and down.
2. the buffer-type heat exchanger that washes away as anti-current body as described in claims 1 is characterized in that: also offer the small sircle hole less than 20mm on the gusset (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250083 CN2495974Y (en) | 2001-07-17 | 2001-07-17 | Buffer type heat exchanger resisting fluid scouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250083 CN2495974Y (en) | 2001-07-17 | 2001-07-17 | Buffer type heat exchanger resisting fluid scouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2495974Y true CN2495974Y (en) | 2002-06-19 |
Family
ID=33660320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250083 Expired - Fee Related CN2495974Y (en) | 2001-07-17 | 2001-07-17 | Buffer type heat exchanger resisting fluid scouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2495974Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726673A (en) * | 2016-08-11 | 2018-02-23 | 荏原冷热系统株式会社 | The manufacture method of heat exchanger and heat exchanger |
| CN108106465A (en) * | 2017-12-25 | 2018-06-01 | 重庆华渝重工机电有限公司 | A kind of tubular ceramic cooler |
-
2001
- 2001-07-17 CN CN 01250083 patent/CN2495974Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726673A (en) * | 2016-08-11 | 2018-02-23 | 荏原冷热系统株式会社 | The manufacture method of heat exchanger and heat exchanger |
| CN108106465A (en) * | 2017-12-25 | 2018-06-01 | 重庆华渝重工机电有限公司 | A kind of tubular ceramic cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |