CN202048727U - Dry evaporator of spiral baffle plate - Google Patents
Dry evaporator of spiral baffle plate Download PDFInfo
- Publication number
- CN202048727U CN202048727U CN2011201261886U CN201120126188U CN202048727U CN 202048727 U CN202048727 U CN 202048727U CN 2011201261886 U CN2011201261886 U CN 2011201261886U CN 201120126188 U CN201120126188 U CN 201120126188U CN 202048727 U CN202048727 U CN 202048727U
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- tube
- plate body
- helical baffles
- spiral plate
- spiral
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Abstract
The utility model discloses a dry evaporator of a spiral baffle plate, comprising a housing provided with a water inlet and a water outlet. tube plates are welded on two sides of the housing; channels are arranged on the tube plates; a spiral baffle plate assembly and a heat exchange tube are arranged inside the housing; the spiral baffle plate component comprises a plurality of spiral baffle plates, a fixed pull bar and a central fixed tube; each spiral baffle plate comprises a spiral plate body, a spacing tube and a central tube sleeve; circular holes are uniformly distributed on the spiral plate body; every two spiral baffle plates are connected from head to tail to form a spiral baffle plate of one pitch period; one end of the fixed pull bar successively passes through a spacing tube and a positioning tube, and is fixed on the tube plate; the other end of the fixed pull bar is screwed by a nut and fixes the whole baffle plate assembly; the central fixed tube successively passes through the central tube sleeves and is fixed on the tube plate; and the heat exchange tube passes through the circular holes and is connected on the tube plate through an expanding joint. The dry evaporator of spiral baffle plate has the advantages of simple structure, low cost, convenient and fast assembly, low pressure drop of shell side fluid and high heat exchange efficiency.
Description
Technical field
The utility model relates to art of refrigeration units, especially a kind of helical baffles dry evaporator.
Background technology
Dry evaporator is the important component part in central air-conditioning water-cooled (air-cooled) unit, and its heat exchange property and cost can directly influence the performance and the manufacturing cost of whole refrigeration system.Dry evaporator mainly comprises housing, deflection plate assembly, heat exchanger tube etc.The structure of deflection plate is varied, as traditional segmental baffle assembly, helical baffles assembly.
Traditional segmental baffle is to adopt the circular slab that has arcuate indentation to flow to as supporting heat exchanger tube and changing shell-side fluid, utilize increase deflection plate quantity and minimizing baffle gap area to improve the shell-side fluid flow velocity, improve total heat transfer coefficient of whole evaporimeter, segmental baffle can satisfy certain requirement, there is following problem in this deflection plate: 1, manufacturing procedure complexity, long processing time, production efficiency is low.2, the most carbon steel that adopts of the material of segmental baffle, the deflection plate after the processing is yielding, causes the position, hole not just, the poling difficulty; When boring, can produce burr, easily scratch, scrape and wear heat exchanger tube.3, to contact with housing be the face contact form for traditional segmental baffle cylindrical, and install for convenience and all can lack 2-5mm than the housing internal diameter usually, can cause shell-side fluid to flow through from this gap like this, influences the heat exchange effect of whole evaporimeter.4, bigger shell-side fluid flow velocity is when vertical cross-flow tube bank, directly impact and flow to the arcuate indentation direction again in inner walls, can produce bigger vibrations, cause the easy poling of heat exchanger tube, shortened the service life of whole evaporimeter, and the shell-side pressure drop that produces is higher, needs to increase pump power and guarantees the shell-side fluid flow.
As application number is 200320106763.1 Chinese patent, discloses a kind of helical deflecting plate pipe and shell type heat exchanger, and its deflection plate is made up of four fan-shaped flat boards, and generally there is the trigonum in per two fanning strip lap-joints, and serious leakage current problem is arranged, and influence heat exchange property; And be to make by steel or other metal materials, the processing assembling is difficult, the cost height.
Application number is 200820047461.4 Chinese patent for another example, a kind of high-efficiency helical deflection plate shell-tube type dry evaporator is disclosed, comprise housing, deflection plate assembly, heat exchanger tube, core pipe etc., its disclosed helical baffles is the helical baffles with a pitch cycle, by distance sink tube independently be separated by and connect by connection strap after be arranged between core pipe and the housing, so deflection plate exists processing, the big shortcoming of assembling difficulty.
The utility model content
The purpose of this utility model overcomes the shortcoming that prior art exists, provide a kind of simple in structure, cost is low, the quick and high helical baffles dry evaporator of heat exchange efficiency easy to assembly.
The technical solution of the utility model is as follows: a kind of helical baffles dry evaporator, comprise housing, be respectively equipped with water inlet and delivery port at the housing two ends, be welded with tube sheet respectively at the housing two ends, bobbin carriage is installed on tube sheet, in housing, be provided with the helical baffles assembly, heat exchanger tube, it is characterized in that: described helical baffles assembly comprises some helical baffles, also comprise steady brace and center fixation pipe, every helical baffles comprises the spiral plate body, center pipe box and distance sink tube, on the spiral plate body, be evenly equipped with the circular hole that passes for heat exchanger tube, central tube is set on the spiral center of every helical baffles, distance sink tube is arranged on the biside plate face of every spiral plate body, helical baffles is by the plastic material integrated injection molding, per two helical baffles connect the deflection plate that the back constitutes a pitch cycle from beginning to end, one end of steady brace is fixed on the tube sheet after passing the distance sink tube on each deflection plate successively and passing a positioning pipe, the other end of steady brace is fastenedly connected by nut, the center fixation pipe passes the center pipe box on the deflection plate successively and is fixed on the tube sheet, and heat exchanger tube passes circular hole on the helical baffles and mechanical expanded joint on tube sheet.
Described spiral plate body comprises a spiral camber body that is surrounded by first flank side surface, last flank side surface, external arc side and interior circular arc side, the first flank side surface of spiral plate body and last flank side surface are in 180 °, are provided with the lip limit face of mutual overlap joint respectively at first flank side surface place and last flank side surface place;
Described distance sink tube is provided with three, respectively be provided with a length at the back side of first flank side surface place and last flank side surface place lip limit face and be 1/2nd distance sink tube of spiral plate body pitch, two distance sink tubes are positioned at the both sides of spiral plate body, the distance sink tube that to be provided with a length on the excircle centre position of spiral plate body be spiral plate body pitch, this distance sink tube passes the spiral plate body, and stretches out the equal in length of spiral plate body both sides;
The length of described center pipe box is 1/2nd of spiral plate body pitch, and the central axis of center pipe box is connected with described external arc side with the central axes and the outer wall of spiral plate body.
One-body molded on the exterior arc surface of described spiral plate body have one to seal the convex edge.
The fixing hole that lip limit face at described first flank side surface place and last flank side surface place is respectively equipped with steady pin and is complementary with steady pin.
Exhaust outlet and sewage draining exit are housed on the described housing.
Be provided with the asbestos seal pad between described tube sheet and the bobbin carriage.
The beneficial effects of the utility model are: simple in structure, production cost is low, easy to assembly quick, the shell-side fluid pressure drop is low and heat exchange efficiency is high.Helical baffles is by the integrated through injection molding moulding in the utility model, does not so need to hole in installation process again, and distance sink tube etc. is installed in processing, significantly reduces manufacturing procedure, assembles also convenient and swift.Because helical baffles is to finish with the injection moulding of plastics one, do not exist deflection plate distortion and boring back to produce the problem of burr, solve because of distortion causes the poling difficulty, because of boring causes scratching easily, scraping the problem of wearing.
Integrated sealing convex edge on the exterior arc surface of spiral plate body, can make the installation between deflection plate and the housing more convenient, and can make between deflection plate and the housing and closely cooperate good airproof performance, prevent that effectively shell-side fluid from from this gap leakage current, helping to improve the heat exchange effect.
On heat exchange property, under the condition of identical refrigerating capacity and applying working condition, the utility model helical baffles dry evaporator is 1.5 times of the total heat transfer coefficient of traditional segmental baffle, and promptly corresponding heat exchange area lacks than the segmental baffle evaporimeter; It is 1/4 of traditional segmental baffle evaporimeter that shell-side fluid hydraulic pressure falls.
Description of drawings
Fig. 1 is the structural representation of the utility model helical baffles dry evaporator;
Fig. 2 is the structural representation of helical baffles among Fig. 1.
The specific embodiment
As shown in Figure 1, 2, a kind of helical baffles dry evaporator comprises housing 6, be respectively equipped with water inlet 5 and delivery port 11 at housing 6 two ends, be welded with tube sheet 4 respectively in the housing both sides, in the middle of housing 6, exhaust outlet 9 and sewage draining exit 13 be housed also, on housing 6, also be provided with foot rest 12.The bobbin carriage of installing on tube sheet 42 is provided with asbestos seal pad 3 between tube sheet 4 and bobbin carriage 2.
The helical baffles assembly is installed in housing 6, heat exchanger tube 7, the helical baffles assembly comprises the some helical baffles 8 with half pitch cycle, also comprise steady brace 10 and center fixation pipe 1, every helical baffles 8 comprises spiral plate body 81, distance sink tube 82 and center pipe box 83, on plate body 81, be evenly equipped with the circular hole 84 that passes for heat exchanger tube, central tube is set on the spiral center of every helical baffles, distance sink tube 82 is arranged on the biside plate face of every spiral plate body, spiral plate body 81, distance sink tube 82 and center pipe box 83 are by the plastic material integrated injection molding.
Spiral plate body 81 comprises a spiral camber body that is surrounded by first flank side surface, last flank side surface, external arc side and interior circular arc side, the first flank side surface of spiral plate body and last flank side surface are in 180 °, be provided with the lip limit face of mutual overlap joint respectively at first flank side surface place and last flank side surface place, lip limit face is to be had a cascaded surface and at last flank side surface place one cascaded surface is arranged at first flank side surface place, two cascaded surfaces are coupling in opposite directions and mutually.Distance sink tube 82 is provided with three, respectively be provided with a length at the back side of the lip limit face at the first flank side surface place of spiral plate body 81 and last flank side surface place and be 1/2nd distance sink tube of spiral plate body pitch, two distance sink tubes are positioned at the both sides of spiral plate body, the distance sink tube that to be provided with a length on the excircle centre position of spiral plate body be spiral plate body pitch, this distance sink tube passes the spiral plate body, and stretches out the equal in length of spiral plate body both sides.The length of center pipe box 83 is 1/2nd of spiral plate body pitch, and the central axis of center pipe box is connected with described external arc side with the central axes and the outer wall of spiral plate body.
One-body molded on the exterior arc surface of spiral plate body have one to seal the convex edge.The fixing hole 86 that lip limit face at first flank side surface place and last flank side surface place is respectively equipped with steady pin and is complementary with steady pin 85.
During installation, the lip limit face of per two helical baffles overlaps mutually, steady pin and the helical baffles that has just become a pitch cycle after fixing hole is connected.Determine the quantity of helical baffles as required, after overlap joint is good, steady brace 10 is provided with four, one end of every steady brace 10 is fixed on the tube sheet 4 after passing the distance sink tube 82 on each deflection plate successively and passing positioning pipe 101, the other end of steady brace 10 is fastenedly connected by nut 102, positioning pipe 101 also is provided with four and length and is provided with as required, is used for determining the distance between helical baffles and the tube sheet.One end of center fixation pipe 1 passes the center pipe box 83 on each deflection plate successively and is fixed on the tube sheet 4, lid of other end welding of center fixation pipe 1 seals, anti-sealing enters in the center fixation pipe 1, and heat exchanger tube 7 passes circular hole 84 on the helical baffles and mechanical expanded joint on tube sheet 4.
Claims (6)
1. helical baffles dry evaporator, comprise housing, be respectively equipped with water inlet and delivery port at the housing two ends, be welded with tube sheet respectively at the housing two ends, bobbin carriage is installed on tube sheet, in housing, be provided with the helical baffles assembly, heat exchanger tube, it is characterized in that: described helical baffles assembly comprises some helical baffles, also comprise steady brace and center fixation pipe, every helical baffles comprises the spiral plate body, center pipe box and distance sink tube, on the spiral plate body, be evenly equipped with the circular hole that passes for heat exchanger tube, central tube is set on the spiral center of every helical baffles, distance sink tube is arranged on the biside plate face of every spiral plate body, helical baffles is by the plastic material integrated injection molding, per two helical baffles connect the deflection plate that the back constitutes a pitch cycle from beginning to end, one end of steady brace is fixed on the tube sheet after passing the distance sink tube on each deflection plate successively and passing a positioning pipe, the other end of steady brace is fastenedly connected by nut, the center fixation pipe passes the center pipe box on the deflection plate successively and is fixed on the tube sheet, and heat exchanger tube passes circular hole on the helical baffles and mechanical expanded joint on tube sheet.
2. helical baffles dry evaporator according to claim 1, it is characterized in that: described spiral plate body comprises a spiral camber body that is surrounded by first flank side surface, last flank side surface, external arc side and interior circular arc side, the first flank side surface of spiral plate body and last flank side surface are in 180 °, are provided with the lip limit face of mutual overlap joint respectively at first flank side surface place and last flank side surface place;
Described distance sink tube is provided with three, respectively be provided with a length at the back side of first flank side surface place and last flank side surface place lip limit face and be 1/2nd distance sink tube of spiral plate body pitch, two distance sink tubes are positioned at the both sides of spiral plate body, the distance sink tube that to be provided with a length on the excircle centre position of spiral plate body be spiral plate body pitch, this distance sink tube passes the spiral plate body, and stretches out the equal in length of spiral plate body both sides;
The length of described center pipe box is 1/2nd of spiral plate body pitch, and the central axis of center pipe box is connected with described external arc side with the central axes and the outer wall of spiral plate body.
3. helical baffles dry evaporator according to claim 2 is characterized in that: one-body molded on the exterior arc surface of described spiral plate body have one to seal the convex edge.
4. according to claim 2 or 3 described helical baffles dry evaporators, it is characterized in that: the fixing hole that the lip limit face at described first flank side surface place and last flank side surface place is respectively equipped with steady pin and is complementary with steady pin.
5. helical baffles dry evaporator according to claim 4 is characterized in that: exhaust outlet and sewage draining exit are housed on the described housing.
6. helical baffles dry evaporator according to claim 4 is characterized in that: be provided with the asbestos seal pad between described tube sheet and the bobbin carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201261886U CN202048727U (en) | 2011-04-26 | 2011-04-26 | Dry evaporator of spiral baffle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201261886U CN202048727U (en) | 2011-04-26 | 2011-04-26 | Dry evaporator of spiral baffle plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048727U true CN202048727U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201261886U Expired - Lifetime CN202048727U (en) | 2011-04-26 | 2011-04-26 | Dry evaporator of spiral baffle plate |
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| Country | Link |
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| CN (1) | CN202048727U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734557A (en) * | 2012-06-14 | 2012-10-17 | 中核能源科技有限公司 | Spiral pipe fixing component and sheathing method |
| CN103644684A (en) * | 2013-12-24 | 2014-03-19 | 上海环球制冷设备有限公司 | Spiral runner dry-type evaporator device and use method thereof |
| EP2722615A1 (en) * | 2012-10-18 | 2014-04-23 | Compagnie Industrielle D'Applications Thermiques | Tube-type evaporator and method for producing a tube-type evaporator |
| CN107782174A (en) * | 2016-08-31 | 2018-03-09 | 黄石市高耐斯热工设备有限公司 | A kind of new Spiral baffle tubular heat exchanger |
| US10941988B2 (en) | 2017-08-28 | 2021-03-09 | Watlow Electric Manufacturing Company | Continuous helical baffle heat exchanger |
-
2011
- 2011-04-26 CN CN2011201261886U patent/CN202048727U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734557A (en) * | 2012-06-14 | 2012-10-17 | 中核能源科技有限公司 | Spiral pipe fixing component and sheathing method |
| CN102734557B (en) * | 2012-06-14 | 2014-05-07 | 中核能源科技有限公司 | Spiral pipe fixing component and sheathing method |
| EP2722615A1 (en) * | 2012-10-18 | 2014-04-23 | Compagnie Industrielle D'Applications Thermiques | Tube-type evaporator and method for producing a tube-type evaporator |
| FR2997174A1 (en) * | 2012-10-18 | 2014-04-25 | Ciat Sa | TUBE EVAPORATOR AND METHOD FOR MANUFACTURING SUCH EVAPORATOR |
| CN103644684A (en) * | 2013-12-24 | 2014-03-19 | 上海环球制冷设备有限公司 | Spiral runner dry-type evaporator device and use method thereof |
| CN107782174A (en) * | 2016-08-31 | 2018-03-09 | 黄石市高耐斯热工设备有限公司 | A kind of new Spiral baffle tubular heat exchanger |
| US10941988B2 (en) | 2017-08-28 | 2021-03-09 | Watlow Electric Manufacturing Company | Continuous helical baffle heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |