CN109654913B - Bent pipe baffling structure of heat exchanger of nuclear power station - Google Patents
Bent pipe baffling structure of heat exchanger of nuclear power station Download PDFInfo
- Publication number
- CN109654913B CN109654913B CN201811486629.6A CN201811486629A CN109654913B CN 109654913 B CN109654913 B CN 109654913B CN 201811486629 A CN201811486629 A CN 201811486629A CN 109654913 B CN109654913 B CN 109654913B
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- elbow
- nuclear power
- heat exchanger
- baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a bent pipe baffling structure of a heat exchanger of a nuclear power station, which comprises a plurality of heat exchange pipes, a heat exchange shell side which is provided with a plurality of bent pipes and sleeved outside the heat exchange pipes, and baffling fluid which is arranged in the bent pipes and used for fixing the heat exchange pipes, wherein the baffling fluid comprises a positioning ring connected with the inner wall of the bent pipes and a baffle plate for sealing the inner side of the positioning ring, the baffle plate is formed by splicing a plurality of baffling sheets, and one side, close to each other, of each two adjacent baffling sheets is respectively provided with a plurality of clamping grooves which. Compared with the prior art, the bent pipe baffle structure of the nuclear power station heat exchanger has the advantages that the baffle plates are spliced by the baffle plates, so that shell side media transversely scour the heat exchange pipes, and the heat exchange efficiency is improved; the baffle plate is provided with a clamping groove for fixing the heat exchange tube, so that the heat exchange tube cannot move radially, the heat exchange tube is prevented from being abraded or deformed due to radial movement, the product quality is improved, and the service life is prolonged.
Description
Technical Field
The invention belongs to the technical field of heat exchangers, and particularly relates to a bent pipe baffling structure of a heat exchanger of a nuclear power station.
Background
At present, set up a plurality of baffling boards in the heat exchanger usually to make the heat transfer medium in the heat exchanger can transversely erode the heat exchange tube, thereby obtain higher heat transfer system in order to improve the heat transfer effect, reach reduce cost and reduce the effect of heat exchanger volume, simultaneously, the baffling board can also play the effect of supporting the heat exchange tube, can effectually prevent that the heat exchange tube from taking place to warp or because of the structural damage that the vibration caused.
However, in a special industry, such as a nuclear power industry, a U-shaped heat exchanger is generally adopted due to space limitation, so that the problem that a heat exchange tube is difficult to fix in a bent tube of the U-shaped heat exchanger is faced.
In view of the above, it is necessary to provide a bent pipe baffle structure of a heat exchanger in a nuclear power plant to overcome the above-mentioned defects in the prior art.
Disclosure of Invention
The invention aims to: the bent pipe baffle structure of the nuclear power station heat exchanger is used in a bent heat exchanger, and aims to facilitate the installation and fixation of a heat exchange pipe in the heat exchanger through a spliced bent pipe baffle plate.
In order to achieve the purpose, the invention provides a bent pipe deflection structure which comprises a plurality of heat exchange pipes, a heat exchange shell side and a deflection body, wherein the heat exchange shell side is provided with a plurality of bent pipes and is sleeved outside the heat exchange pipes, the deflection body is arranged in the bent pipes and is used for fixing the heat exchange pipes, the deflection body comprises a positioning ring connected with the inner wall of the bent pipes and a deflection plate for closing the inner side of the positioning ring, the deflection plate is formed by splicing a plurality of deflection plates, and one side, close to each other, of each two adjacent deflection plates is respectively provided with a plurality of clamping grooves which.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the cross section of the bent pipe is circular, the positioning ring is semicircular, and a diversion gap is formed between the bent fluid and the inner wall of the bent pipe.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the heat exchange pipe is parallel to the central axis of the bent pipe, the baffling fluid is vertical to the central axis of the bent pipe, and two adjacent diversion gaps are arranged in a staggered mode.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the positioning ring and the bent pipe are coaxially arranged, and the outer diameter of the positioning ring is consistent with the inner diameter of the bent pipe.
As an improvement of the bent pipe baffle structure of the heat exchanger of the nuclear power station, the baffle bodies are arranged in groups, and the diversion notches of each group of baffle bodies are superposed to jointly fix the same area of the heat exchange pipe.
As an improvement of the bent pipe baffle structure of the heat exchanger of the nuclear power station, the number of the bent fluids in each group of the bent fluids is at least two.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the distances between two adjacent groups of baffling bodies are equal.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the positioning ring and the inner wall of the bent pipe section and the positioning ring and the baffling sheet are welded and fixed.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the clamping grooves are semicircular, and two corresponding clamping grooves are combined into a complete circle and matched with a heat exchange pipe with a circular cross section.
As an improvement of the bent pipe baffling structure of the heat exchanger of the nuclear power station, the heat exchange shell side further comprises two straight pipes which are arranged in parallel and communicated with two ends of the bent pipe, one end, far away from the bent pipe, of each straight pipe is provided with a connector communicated with the heat exchange pipe and a connecting pipe communicated with the straight pipe, the connectors on the two straight pipes are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange pipe in a circulating manner, and the connecting pipes on the two straight pipes are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange shell side in a circulating manner.
Compared with the prior art, the bent pipe baffle structure of the heat exchanger of the nuclear power station, provided by the invention, has the advantages that the baffle plates are spliced by the baffle plates, so that a shell side medium transversely scours the heat exchange pipe, and the heat exchange efficiency is improved; the baffle plate is provided with a clamping groove for fixing the heat exchange tube, so that the heat exchange tube cannot move radially, the heat exchange tube is prevented from being abraded or deformed due to radial movement, the product quality is improved, and the service life is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a bent pipe baffle structure of a heat exchanger of a nuclear power station provided by the invention.
Fig. 2 is a sectional view taken along the direction a-a shown in fig. 1.
Fig. 3 is an exploded view of a baffle plate in the elbow baffle structure of the heat exchanger of the nuclear power plant shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention will be described in further detail with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the present invention provides an elbow baffle structure 100 for a heat exchanger of a nuclear power plant, which is mainly used to solve the problem that it is difficult to fixedly mount a heat exchange tube 10 in a curved heat exchange device.
In the embodiment of the present invention, the bent-tube deflecting structure 100 includes a plurality of heat exchange tubes 10, a heat exchange shell side 20 having a plurality of bent tubes 201 and sleeved outside the heat exchange tubes 10, and a deflecting body 30 disposed inside the bent tubes 201 and used for fixing the heat exchange tubes 10, where the deflecting body 30 includes a positioning ring 301 connected to an inner wall of the bent tubes 201 and a deflecting plate 302 closing an inner side of the positioning ring 301, the deflecting plate 302 is formed by splicing a plurality of deflecting pieces 3021, and a plurality of slots 3022 corresponding to each other and used for fixing the heat exchange tubes 10 are respectively disposed on adjacent sides of two deflecting pieces 3021.
In one embodiment of the present invention, the locking groove 3022 is semicircular, and two corresponding locking grooves 3022 are combined into a complete circle to match the heat exchange tube 10 having a circular cross section, so that the heat exchange tube 10 can be effectively prevented from radial displacement.
In one embodiment of the present invention, the elbow 201 is circular in cross-sectional shape, the retaining ring 301 is semi-circular, and a flow-guiding gap 303 is formed between the baffle 30 and the inner wall of the elbow 201 for fluid communication in the heat exchange shell side 20. Preferably, the heat exchange tube 10 is parallel to the central axis of the elbow 201, the baffle 30 is perpendicular to the central axis of the elbow 201, and the two adjacent diversion gaps 303 are arranged in a staggered manner, so that the fluid in the elbow 201 can transversely wash the heat exchange tube 10 along the baffle 30 and the diversion gaps 303, and the heat exchange efficiency can be effectively improved. In the illustrated embodiment, the retaining ring 301 is disposed coaxially with the elbow 201, and the outer diameter of the retaining ring 301 corresponds to the inner diameter of the elbow 201.
In one embodiment of the present invention, the baffles 30 are arranged in groups, and the diversion gaps 303 of each group of baffles 30 are overlapped to fix the same area of the heat exchange tube 10 together, so as to enhance the firmness of fixing the heat exchange tube 10. In the present embodiment, the number of baffles 30 in each set of baffles 30 is at least two. Preferably, the distances between two adjacent groups of bent fluids 30 are equal, so as to avoid the stress imbalance caused by uneven heat exchange of the heat exchange tube 10, reduce vibration and prolong the service life.
In one embodiment of the present invention, the positioning ring 301 and the inner wall of the elbow 201 and the positioning ring 301 and the baffle 3021 are welded and fixed to each other, so as to enhance the connection strength between the baffle 30 and the elbow 201 and enhance the fixing effect of the baffle 3021 on the heat exchange tube 10.
When the heat exchange tube 10 is installed in the elbow tube 201, firstly the positioning ring 301 is welded on the inner wall of the elbow tube 201, then the first baffle 3021 is welded in the positioning ring 301, the corresponding first batch of heat exchange tubes 10 are clamped in the clamping grooves 3022 of the baffle 3021, then the second baffle 3021 is welded in the positioning ring 301 to position the first batch of heat exchange tubes 10, and the second batch of heat exchange tubes 10 are continuously installed, and the steps are repeated until the last baffle 3021 is welded to finish installation.
According to the embodiment of the invention, it can be understood that the baffle plate 302 is formed by splicing a plurality of baffle plates 3021, and is conveniently installed in the elbow 201, so that the shell side 20 medium transversely flushes the heat exchange tube 10, and the heat exchange efficiency is improved. Meanwhile, the baffle 3021 is provided with a clamping groove 3022 for fixing the heat exchange tube 10, so that the heat exchange tube 10 cannot move radially, abrasion or deformation of the heat exchange tube 10 due to radial movement is avoided, the product quality is improved, and the service life is prolonged.
In the embodiment of the present invention, the heat exchange shell side 20 further includes two parallel straight pipes 202 connected to two ends of the elbow 201 to form the U-shaped heat exchange shell side 20, a connector 2021 connected to the heat exchange tube 10 and a connection pipe 2022 connected to the straight pipe 202 are disposed at one end of each straight pipe 202 away from the elbow 201, the connectors 2021 of the two straight pipes 202 are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange tube 10 in a circulating manner, and the connection pipes 2022 of the two straight pipes 202 are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange shell side 20 in a circulating manner. In the illustrated embodiment, the cross-sectional shape of the straight tube completely conforms to the cross-sectional shape of the bent tube 201.
As can be seen from the above detailed description of the embodiment of the present invention, compared with the prior art, the bent pipe baffle structure of the nuclear power station heat exchanger provided by the present invention has the advantages that the baffle plates 30 are spliced by the plurality of baffle plates 3021, so that the shell side 20 medium transversely flushes the heat exchange pipe 10, and the heat exchange efficiency is improved; the baffle 3021 is provided with a clamping groove 3022 for fixing the heat exchange tube, so that the heat exchange tube 10 cannot move radially, the heat exchange tube 10 is prevented from being worn or deformed due to radial movement, the product quality is improved, and the service life is prolonged.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a nuclear power station heat exchanger return bend baffling structure, a serial communication port, including a plurality of heat exchange tubes, have a plurality of return bends and cover the heat transfer shell side outside the heat exchange tube, and set up in the return bend and be used for the baffling fluid of fixed heat exchange tube, wherein, the baffling fluid includes the holding ring that links to each other with the return bend inner wall and seals the baffling board of holding ring inboard, the baffling board is formed by a plurality of baffling piece concatenations, and a plurality of one-to-one correspondences and a draw-in groove that is used for fixed heat exchange tube.
2. The nuclear power plant heat exchanger elbow baffle structure of claim 1, wherein the cross-sectional shape of the elbow is circular, the positioning ring is semi-circular, and a flow guide gap is formed between the baffle and the inner wall of the elbow.
3. The bent pipe baffle structure of the nuclear power station heat exchanger according to claim 2, wherein the heat exchange pipe is parallel to the central axis of the bent pipe, the baffle body is perpendicular to the central axis of the bent pipe, and two adjacent flow guide notches are arranged in a staggered manner.
4. The nuclear power plant heat exchanger elbow baffle structure of claim 3, wherein the positioning ring is disposed coaxially with the elbow, and the outer diameter of the positioning ring is identical to the inner diameter of the elbow.
5. The nuclear power plant heat exchanger elbow baffle structure of claim 2, wherein the baffle bodies are arranged in groups, and the diversion notches of each group of the baffle bodies are overlapped to jointly fix the same area of the heat exchange tube.
6. The nuclear power plant heat exchanger elbow baffle structure of claim 5, wherein the number of baffles in each set of baffles is at least two.
7. The nuclear power plant heat exchanger elbow baffle structure of claim 6, wherein the distance between two adjacent sets of baffle bodies is equal.
8. The nuclear power station heat exchanger elbow baffle structure of claim 1, wherein the positioning ring is welded to the inner wall of the elbow section and the positioning ring is welded to the baffle plate.
9. The nuclear power plant heat exchanger elbow baffle structure of claim 1, wherein the slots are semi-circular, and two corresponding slots combine to form a complete circle and match a heat exchange tube having a circular cross-section.
10. The nuclear power station heat exchanger elbow baffling structure according to claim 1, wherein the heat exchange shell side further comprises two straight pipes arranged in parallel and communicated with two ends of the elbow, one end of each straight pipe, which is far away from the elbow, is provided with a joint communicated with the heat exchange pipe and a connecting pipe communicated with the straight pipe, the joints on the two straight pipes are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange pipe in a circulating manner, and the connecting pipes on the two straight pipes are respectively used as an inlet and an outlet for the fluid to flow in the heat exchange shell side in a circulating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486629.6A CN109654913B (en) | 2018-12-06 | 2018-12-06 | Bent pipe baffling structure of heat exchanger of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486629.6A CN109654913B (en) | 2018-12-06 | 2018-12-06 | Bent pipe baffling structure of heat exchanger of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654913A CN109654913A (en) | 2019-04-19 |
| CN109654913B true CN109654913B (en) | 2020-05-01 |
Family
ID=66112659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811486629.6A Active CN109654913B (en) | 2018-12-06 | 2018-12-06 | Bent pipe baffling structure of heat exchanger of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654913B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728979B (en) * | 2019-10-14 | 2022-09-16 | 浙江可胜技术股份有限公司 | Particle heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073032A (en) * | 1991-11-27 | 1993-06-09 | 费罗马托姆公司 | The U-shaped pipe in pipe of anti-loose fulcrum arrangement is housed |
| CN1099473A (en) * | 1993-07-09 | 1995-03-01 | 法玛通公司 | Heat exchanger including a bundle of tubes which are bent into A U and anti-vibration bars between the bent parts of the tubes |
| US5692557A (en) * | 1995-03-09 | 1997-12-02 | Framatome | U-tube heat exchanger, equipped with a tube antivibration stabilizing system and a hold-down system |
| CN101349366A (en) * | 2007-07-18 | 2009-01-21 | 巴布考克及威尔考克斯加拿大有限公司 | Nubbed U-bend tube support |
| CN106197125A (en) * | 2016-08-17 | 2016-12-07 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of U-shaped heat exchanger tube supporting construction of photo-thermal power generation reheater |
| CN106546111A (en) * | 2016-12-12 | 2017-03-29 | 北京广厦环能科技股份有限公司 | A kind of shell-and-tube heat exchanger |
-
2018
- 2018-12-06 CN CN201811486629.6A patent/CN109654913B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073032A (en) * | 1991-11-27 | 1993-06-09 | 费罗马托姆公司 | The U-shaped pipe in pipe of anti-loose fulcrum arrangement is housed |
| CN1099473A (en) * | 1993-07-09 | 1995-03-01 | 法玛通公司 | Heat exchanger including a bundle of tubes which are bent into A U and anti-vibration bars between the bent parts of the tubes |
| US5692557A (en) * | 1995-03-09 | 1997-12-02 | Framatome | U-tube heat exchanger, equipped with a tube antivibration stabilizing system and a hold-down system |
| CN101349366A (en) * | 2007-07-18 | 2009-01-21 | 巴布考克及威尔考克斯加拿大有限公司 | Nubbed U-bend tube support |
| CN106197125A (en) * | 2016-08-17 | 2016-12-07 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of U-shaped heat exchanger tube supporting construction of photo-thermal power generation reheater |
| CN106546111A (en) * | 2016-12-12 | 2017-03-29 | 北京广厦环能科技股份有限公司 | A kind of shell-and-tube heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109654913A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110595230A (en) | Portable elastic scroll heat exchanger | |
| CN105091634A (en) | Baffle rod type heat exchanger with built-in expansion joint | |
| LU102100B1 (en) | Portable heat exchange device having arrayed planar elastic vortex tubes | |
| CN109654913B (en) | Bent pipe baffling structure of heat exchanger of nuclear power station | |
| CN110567298B (en) | Nested formula spiral baffling board and heat exchanger | |
| CN111765784B (en) | Single-tube-pass floating head type heat exchanger | |
| CN113237359A (en) | Spiral baffling wound copper pipe heat exchange device | |
| CN209745048U (en) | High-efficient shell and tube heat exchanger | |
| CN112432524A (en) | Detachable single-tube-pass floating head type heat exchanger | |
| CN218516735U (en) | Series pipe reactor with closed type waveform expansion joint | |
| CN203595430U (en) | Matrix type sleeve heat exchanger | |
| CN110207508A (en) | A kind of heat exchanger | |
| CN113804020B (en) | Baffling snakelike copper pipe heat transfer device | |
| CN211261871U (en) | Portable elastic scroll heat exchanger | |
| CN203349686U (en) | Tubular heat exchanger and continuous composite spiral baffle plate thereof | |
| CN114963802A (en) | Curved surface baffle assembly for shell-and-tube heat exchanger and shell-and-tube heat exchanger | |
| CN110108149B (en) | Method for mounting shell-and-tube heat exchanger | |
| CN110869688B (en) | Heat exchanger for harsh operating conditions | |
| CN211291111U (en) | Portable plane elastic array scroll heat exchange device | |
| CN204830950U (en) | Large -scale double helix baffling plate heat exchanger | |
| CN214371876U (en) | Spiral copper pipe heat transfer device | |
| CN220552325U (en) | Three-flow fixed tube plate heat exchanger | |
| CN220119918U (en) | High-efficiency fixed tube-plate heat exchanger | |
| CN220750876U (en) | Spiral winding tubular heat exchanger | |
| CN215524298U (en) | Pure countercurrent fixed tube-sheet heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |