CN201819612U - Single-tube floating shell and tube graphite heat exchanger - Google Patents
Single-tube floating shell and tube graphite heat exchanger Download PDFInfo
- Publication number
- CN201819612U CN201819612U CN2010205477086U CN201020547708U CN201819612U CN 201819612 U CN201819612 U CN 201819612U CN 2010205477086 U CN2010205477086 U CN 2010205477086U CN 201020547708 U CN201020547708 U CN 201020547708U CN 201819612 U CN201819612 U CN 201819612U
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- Prior art keywords
- tube
- heat exchanger
- graphite
- tube sheet
- pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a single-tube floating shell and tube graphite heat exchanger. The heat exchanger comprises a fixed tube sheet, a heat exchange tube, an O-shaped seal ring, a compression ring and a screw, wherein the heat exchange tube and the fixed tube sheet are connected in a non-adhesive manner and are fixed and sealed through the O-shaped seal ring, the compression ring, and the screw. The single-tube floating shell and tube graphite heat exchanger provided by the utility model is more suitable for modern industrial production and the enlargement of the temperature range, and the tube sheet is not easy to fracture; and the single-tube floating shell and tube graphite heat exchanger is safe, and convenient to maintain.
Description
Technical field
The utility model relates to tube-type graphite heat exchanger, is specifically related to the unsteady tube-type graphite heat exchanger of a kind of single tube.
Background technology
Traditional tube-type graphite heat exchanger generally adopts the die mould graphite-pipe, but the die mould graphite-pipe coefficient of expansion is big, and the tube sheet breakage of rupturing easily increases tube plate thickness and also can self rise badly, causes leaking of industrial chemicals.As select dipping graphite tube and impregnation-calcination graphite-pipe for use, and though the impregnated graphite pipe line coefficient of expansion is little, the impregnation-calcination pipe does not expand substantially, this graphite-pipe does not relatively have advantage with the die mould graphite-pipe on structural strength, and cost is more expensive.
Adopt tubular graphitic heat-exchanger, as shown in Figure 1, be connected to bonding 6 forms between its graphite heat exchanger tube 2 and the two ends tube sheet 1, the stress that comes compensation temperature to produce by the free floating of terminal tube sheet 1.But the coefficient of expansion of every pipe of die mould graphite-pipe itself is just inconsistent, sometimes in addition the different regional expansion coefficient difference of pipe also very big.Below 120 ℃, the coefficient of expansion of die mould graphite-pipe is all very little in low-temperature zone, and expansion can lean on floating of floating tubesheet to realize compensation.Temperature raises in production process, and when surpassing more than 120 ℃, the coefficient of expansion begins to increase, and because the coefficient of expansion of pipe is inconsistent, stress increases, and tube sheet floats and can not realize offsetting, and finally causes tube sheet to damage.So this quasi-tradition equipment generally can only be used in cooler, and can not surpass 120 ℃ as the best serviceability temperature of heater, in a single day piping failure appears in this kind equipment can only realize by the form of stopping up the tube sheet corresponding aperture repairing, and heat exchange area can reduce like this.
The utility model content
The utility model purpose: the utility model is in order to solve the deficiencies in the prior art, the not unsteady tube-type graphite heat exchanger of single tube of easy fracture of a kind of tube sheet to be provided.
Technical scheme: a kind of single tube tube-type graphite heat exchanger that floats, comprise fixed tube sheet, heat exchanger tube, one end tubesheet holes place of described fixed tube sheet is with heat exchanger tube, the bottom periphery of described heat exchanger tube in fixed tube sheet is with pressure ring, be with the O RunddichtringO with the heat exchanger tube contact portion on the described pressure ring, the other end of the corresponding described tubesheet holes of described fixed tube sheet is equipped with the graphite screw.
Described heat exchanger tube is the die mould graphite-pipe.
Can adopt suitable O RunddichtringO material according to material characteristic and the serviceability temperature used, the O RunddichtringO must be the disposal molding non junction, otherwise is difficult for realizing sealing.
Between die mould graphite-pipe and tube sheet, pressure ring, the graphite screw space is arranged, without any adhesive spots, pressed pipe is in variations in temperature and the coefficient of expansion can free floating when increasing like this.The graphite screw is inwardly tightened, and promotes pressure ring like this and compresses the O RunddichtringO, and the O RunddichtringO seals the heat exchanger tube and the tube sheet of heat exchanger because of the thrust distortion.
The bonding form of heat exchanger tube and tube sheet can be adopted in the other end of this equipment generally speaking.If be used in the chemical process easily stifled, that dirt is many, impulsive force is big, can adopt the form of two free floating, when the die mould graphite-pipe stops up or breaks, the graphite screw can be unclamped, take out pressure ring and O RunddichtringO, change after can taking out the die mould graphite-pipe.
Want the coefficient of expansion of budget pressed pipe when producing this equipment, guarantee the expansion of the enough pressed pipes of distance between graphitic pressed pipe and the graphite screw.It is excessive to consider also when two is such version that pressed pipe and graphite screw distance leaves, and produces pressed pipe and breaks away from O RunddichtringO phenomenon.
Can adopt the corrosion resistant metal tube sheet as required, strengthen the working pressure of equipment.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model single tube floats, and tube-type graphite heat exchanger is more suitable to be produced with modernization industry, and the Applicable temperature scope improves, and tube sheet is easy fracture not, and safety maintains easily.
Description of drawings
Fig. 1 is traditional tubular graphitic heat-exchanger partial structurtes schematic diagram;
Fig. 2 is the utility model partial structurtes schematic diagrames.
The specific embodiment
As shown in Figure 2, a kind of single tube tube-type graphite heat exchanger that floats, comprise fixed tube sheet 1, heat exchanger tube 2, one end tubesheet holes place of described fixed tube sheet 1 is with heat exchanger tube 2, the bottom periphery of described heat exchanger tube 2 in fixed tube sheet 1 is with pressure ring 3, is with O RunddichtringO 4 with heat exchanger tube 2 contact portions on the described pressure ring 3, and the other end of described fixed tube sheet 1 corresponding described tubesheet holes is equipped with graphite screw 5.Described heat exchanger tube 2 is the die mould graphite-pipe, and described O RunddichtringO 4 is the sealing ring of disposal molding non junction formula.
Claims (3)
1. the single tube tube-type graphite heat exchanger that floats, comprise fixed tube sheet (1), heat exchanger tube (2), it is characterized in that: an end tubesheet holes place of described fixed tube sheet (1) is with heat exchanger tube (2), the bottom periphery of described heat exchanger tube (2) in fixed tube sheet (1) is with pressure ring (3), described pressure ring (3) is gone up and heat exchanger tube (2) contact portion is with O RunddichtringO (4), and the other end of the corresponding described tubesheet holes of described fixed tube sheet (1) is equipped with graphite screw (5).
2. the single tube according to claim 1 tube-type graphite heat exchanger that floats, it is characterized in that: described heat exchanger tube (2) is the die mould graphite-pipe.
3. the single tube according to claim 1 tube-type graphite heat exchanger that floats, it is characterized in that: described O RunddichtringO (4) is the sealing ring of disposal molding non junction formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205477086U CN201819612U (en) | 2010-09-29 | 2010-09-29 | Single-tube floating shell and tube graphite heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205477086U CN201819612U (en) | 2010-09-29 | 2010-09-29 | Single-tube floating shell and tube graphite heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819612U true CN201819612U (en) | 2011-05-04 |
Family
ID=43917562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205477086U Expired - Fee Related CN201819612U (en) | 2010-09-29 | 2010-09-29 | Single-tube floating shell and tube graphite heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305572A (en) * | 2011-05-16 | 2012-01-04 | 四川蓝星机械有限公司 | Connection structure and connection method of heat exchange tube and tube plate |
-
2010
- 2010-09-29 CN CN2010205477086U patent/CN201819612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305572A (en) * | 2011-05-16 | 2012-01-04 | 四川蓝星机械有限公司 | Connection structure and connection method of heat exchange tube and tube plate |
| CN102305572B (en) * | 2011-05-16 | 2012-12-12 | 四川蓝星机械有限公司 | Connection structure and connection method of heat exchange tube and tube plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20110929 |