CN104879959A - Dry-type evaporator - Google Patents
Dry-type evaporator Download PDFInfo
- Publication number
- CN104879959A CN104879959A CN201510362734.9A CN201510362734A CN104879959A CN 104879959 A CN104879959 A CN 104879959A CN 201510362734 A CN201510362734 A CN 201510362734A CN 104879959 A CN104879959 A CN 104879959A
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- China
- Prior art keywords
- fixed cylinder
- fixed
- dividing plate
- shell side
- half cylindrical
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a dry-type evaporator, and belongs to the technical field of heat exchanging. The dry-type evaporator solves the technical problem that a tube bundle of an existing dry-type evaporator is inconvenient to wash, and comprises a front tube box, a back tube box and a barrel arranged between the front tube box and the back tube box. The barrel comprises a front fixed barrel body, a middle barrel body and a back fixed barrel body, wherein the front fixed barrel body, the middle barrel body and the back fixed barrel body are sequentially arranged. The front fixed barrel body and the front tube box are fixed, and the back barrel body and the back tube box are fixed. The middle barrel body is composed of two semi barrel main bodies with the circular-arc-shaped cross sections. Protruding edges are arranged at the edges of the two ends and the edges of the two sides of the two semi barrel main bodies respectively. The two semi barrel main bodies are fixedly connected in the mode that bolts penetrate through the protruding edges on the two sides. Flanges are fixed to the end of the front fixed barrel body and the end of the back fixed barrel body respectively. The protruding edges at the two ends of the two semi barrel main bodies are fixedly attached to the flange at the end of the front fixed barrel body and the flange at the end of the back fixed barrel body. The dry-type evaporator has the advantage that great convenience is brought to maintaining the evaporator.
Description
Technical field
The invention belongs to technical field of heat exchange, relate to a kind of dry evaporator.
Background technology
Dry evaporator be cold-producing medium at heat exchange Bottomhole pressure, refrigerating medium is in the outer flowing of pipe, and the heat of refrigerant suction refrigerating medium completes and once evaporates completely.
The shell side of dry evaporator mostly is water; the refrigerating mediums such as salt solution; while these refrigerating mediums carry out heat exchange in the shell side of evaporimeter; usually dirt can be remained in the interbank of housing, along with the prolongation of service time, dirt is more long-pending thicker; have a strong impact on the heat transfer efficiency of evaporimeter; thus periodic flushing is needed to restrain, if but tube bank is not released from housing, the poor effect of flushing.In order to address this problem, the dry evaporator of prior art is usually designed to whole heat-exchanging tube bundle tube sheet, pull bar, distance sink tube, deflection plate, heat exchanger tube form the structure of extracting out in the lump, but whole tube bank is very heavy, in addition the dirt bite deposited, be difficult at the scene even cannot extract out, cause the tube bank maintenance clean of dry evaporator to bother very much, take time and effort.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of dry evaporator, the technical problem that the present invention solves is convenient to cleaning tube bank.
Object of the present invention realizes by following technical proposal:
A kind of dry evaporator, comprise front header, rear header and the cylindrical shell be arranged between front header and rear header, it is characterized in that, described cylindrical shell comprises the front fixed cylinder set gradually, middle cylinder body and rear fixed cylinder, described front fixed cylinder and front header are fixed, described rear fixed cylinder and rear header are fixed, half cylindrical shell that described middle cylinder body is circular arc by two cross sections forms, the two ends of two described half cylindrical shells and dual-side are along all having bead, two described half cylindrical shells are fixedly connected with by the bead of bolt through both sides, the end of described front fixed cylinder and the end of rear fixed cylinder are all fixed with flange, the bead at two described half cylindrical shell two ends is fitted fixing with the flange on the end of the flange on front fixed cylinder end and rear fixed cylinder respectively.
Front header is provided with feed tube and steam outlet pipe, cylindrical shell internal fixtion has tube bank, the two ends of tube bank are fixed respectively by the back tube sheet on the front tube sheet on front fixed cylinder and rear fixed cylinder, front tube sheet has some through holes be communicated with front header, back tube sheet has some through holes be communicated with rear header, the two ends of tube bank are communicated with fixing respectively with above-mentioned through hole; In said structure, middle cylinder body is demountable structure, seal fixing when two and half cylindrical shells are installed together and between front fixed cylinder and rear fixed cylinder, the heat exchange of evaporimeter can be realized, after a long time use, by being disassembled by two plate cylindrical shells, outside the tube bank in cylindrical shell is just exposed to, tube bank can be rinsed easily, after flushing completes, two and half cylindrical shells are reinstalled and can reuse together, greatly facilitate the maintaining of evaporimeter.
In above-mentioned dry evaporator, two described half cylindrical shells are in distributing up and down, and the equal semicircular in shape in cross section of two described half cylindrical shells, two side flanges of two described half cylindrical shells lay respectively at the both sides of middle cylinder body.This structure makes the junction between two and half cylindrical shells be positioned at the both sides of cylindrical shell, reduces the pressure of sealing; Half cylindrical shell semicircular in shape is avoided when disassembling colliding with tube bank.
In above-mentioned dry evaporator, between both sides corresponding on two described half cylindrical shells, be fixed with sealing strip one.The sealing of junction between two and half cylindrical shells is increased by sealing strip one.
In above-mentioned dry evaporator, between the flange on the flange on the bead at two described half cylindrical shell two ends and front fixed cylinder end and the end of rear fixed cylinder, be all fixed with sealing strip two.The sealing between the flange on the end of flange on two and half cylindrical shells and front fixed cylinder end and rear fixed cylinder is increased by sealing strip two.
Sealing strip one and sealing strip two are integrally connected, and improve corner sealing property between half cylindrical shell both sides and two ends.
In above-mentioned dry evaporator, at least one shell side layering dividing plate is provided with in described cylindrical shell, form at least two refrigerating chambers between described shell side layering dividing plate and cylindrical shell, described shell side layering dividing plate and front fixed cylinder, to be all tightly connected between middle cylinder body and rear fixed cylinder.Shell side layering dividing plate is vertically arrange, and the multisystem that shell side layering dividing plate realizes dry evaporator is run, and improves the heat transfer efficiency of evaporimeter.
In above-mentioned dry evaporator, forward and backward two sections of described shell side layering dividing plate is separately fixed in front fixed cylinder and rear fixed cylinder, the front and rear end of described shell side layering dividing plate is welded and fixed with the back tube sheet on the front tube sheet on front fixed cylinder and rear fixed cylinder respectively, be positioned at the described upper and lower end face of shell side layering dividing plate leading portion and the inwall of front fixed cylinder is welded and fixed, be positioned at the described upper and lower end face of shell side layering dividing plate back segment and the inwall of rear fixed cylinder is welded and fixed.Because front fixed cylinder and rear fixed cylinder are fixing, therefore the constant intensity of shell side layering dividing plate can be ensured by the mode of welding, also can ensure shell side layering dividing plate and the seal between front fixed cylinder and rear fixed cylinder, make refrigerating chamber keep independence.
In above-mentioned dry evaporator, the upper and lower end face in described shell side layering dividing plate stage casing is all fixed with sealing gasket, be positioned at sealing gasket on the upper and lower end face in described shell side layering dividing plate stage casing can respectively with two the inwall of described half cylindrical shell fit against.Because middle cylinder body is removable structure, therefore fit against realizing sealing when two and half cylindrical shells are installed together by the inwall of sealing gasket and half cylindrical shell, two and half cylindrical shells freely can be dismantled, after reinstalling, still can keep sealing, realize practical purpose repeatedly.
In above-mentioned dry evaporator, described sealing gasket comprises body and two pieces of sealing projections, one end of described body has U-shaped groove, the upper and lower end face in described shell side layering dividing plate stage casing can embed in U-shaped groove respectively, described body is fixed on shell side layering dividing plate by screw bolt and nut, two pieces of described sealing projections lay respectively at the both sides of body and the other end of opposing body is protruding, and the angle between two pieces of described sealing projections is obtuse angle.Sealing gasket seals by being formed between U-shaped groove and shell side layering dividing plate, fit against the sealing realized between half cylindrical shell by the inwall of two pieces of sealing projections and half cylindrical shell again, because the inwall of half cylindrical shell is positioned at arc surface, therefore two pieces of sealing projections understand extruding outside to two after half cylindrical shell is installed, thus be close to the inwall of half cylindrical shell, two pieces of sealing projections form two seals, make sealing property better.
In above-mentioned dry evaporator, described body both sides are also provided with compressing tablet, described screw bolt and nut respectively with compressing tablet against compression.Compressing tablet can make the cell wall of the U-shaped groove of body be fitted on the two sides of shell side layering dividing plate more closely, ensures the sealing between sealing gasket and shell side layering dividing plate.
In above-mentioned dry evaporator, described front fixed cylinder is provided with the outlet pipe be communicated with refrigerating chamber one_to_one corresponding, and described rear fixed cylinder is provided with the water inlet pipe be communicated with refrigerating chamber one_to_one corresponding.This structure makes to keep independent between refrigerating chamber, improves the heat transfer efficiency of evaporimeter.
Compared with prior art, this dry evaporator has the advantage of the maintaining greatly facilitating evaporimeter and the heat transfer efficiency that improve evaporimeter.
Accompanying drawing explanation
Fig. 1 is the structural representation of this dry evaporator.
Fig. 2 is the structural representation of half cylindrical shell in this dry evaporator.
Fig. 3 is the forward sight structural representation of middle cylinder body in the present embodiment one.
Fig. 4 is the partial enlargement structural representation in A portion in Fig. 3.
Fig. 5 is the partial enlargement structural representation in B portion in Fig. 3.
Fig. 6 is the forward sight structural representation of middle cylinder body in the present embodiment two.
In figure, 1, front header; 11, feed tube; 12, steam outlet pipe; 2, rear header; 3, front fixed cylinder; 3a, front tube sheet; 3b, outlet pipe; 31, middle cylinder body; 311, half cylindrical shell; 311a, bead; 32, rear fixed cylinder; 32a, back tube sheet; 32b, water inlet pipe; 33, flange; 34, sealing strip one; 4, shell side layering dividing plate; 4a, refrigerating chamber; 5, sealing gasket; 51, body; 52, projection is sealed; 53, compressing tablet; 6, bolt; 61, nut.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
The present embodiment one as shown in Figures 1 to 5, dry evaporator comprises front header 1, rear header 2 and the cylindrical shell be arranged between front header 1 and rear header 2, front header 1 is provided with feed tube 11 and steam outlet pipe 12, cylindrical shell internal fixtion has tube bank, cylindrical shell comprises the front fixed cylinder 3 set gradually, middle cylinder body 31 and rear fixed cylinder 32, front fixed cylinder 3 is fixed with front header 1, rear fixed cylinder 32 and rear header 2 are fixed, the two ends of tube bank are fixed respectively by the front tube sheet 3a on front the fixed cylinder 3 and back tube sheet 32a on rear fixed cylinder 32, front tube sheet 3a has some through holes be communicated with front header 1, back tube sheet 32a has some through holes be communicated with rear header 2, the two ends of tube bank are communicated with fixing respectively with above-mentioned through hole.
At least one shell side layering dividing plate 4 is vertically set in cylindrical shell 31, between shell side layering dividing plate 4 and cylindrical shell 31, forms at least two refrigerating chamber 4a, shell side layering dividing plate 4 and front fixed cylinder 3, to be all tightly connected between middle cylinder body 31 and rear fixed cylinder 32.Front header 1 is provided with and shell side layering dividing plate 4 pass partition one to one, feed tube 11 on front header 1 is identical with the quantity of refrigerating chamber 4a with the quantity of steam outlet pipe 12, be provided with diaphragm plate in front header 1 chamber corresponding to feed tube 11 and steam outlet pipe 12 is separated, front fixed cylinder 3 is provided with the outlet pipe 3b be communicated with refrigerating chamber 4a one_to_one corresponding, and rear fixed cylinder 32 is provided with the water inlet pipe 32b be communicated with refrigerating chamber 4a one_to_one corresponding.In the present embodiment one, shell side layering dividing plate 4 has one piece, forms two refrigerating chamber 4a between shell side layering dividing plate 4 and middle cylinder body 31.
Half cylindrical shell 311 that middle cylinder body 31 is circular arc by two cross sections forms, and specifically, two and half cylindrical shells 311 are distribute up and down, the equal semicircular in shape in cross section of two and half cylindrical shells 311.The two ends of two and half cylindrical shells 311 and dual-side are along all having bead 311a, two side flanges 311a of two and half cylindrical shells 311 lay respectively at the both sides of middle cylinder body 31, two and half cylindrical shells 311 are fixedly connected with by the bead 311a of bolt 6 through both sides, are fixed with sealing strip 1 between two and half cylindrical shell 311 both sides; The end of front fixed cylinder 3 and the end of rear fixed cylinder 32 are all fixed with flange 33, the bead 311a at two and half cylindrical shell 311 two ends fit with the flange 33 on the end of the flange 33 on front fixed cylinder 3 end and rear fixed cylinder 32 respectively by bolt 6 and fixes, and is all fixed with sealing strip two between the flange 33 on the flange 33 on the bead 311a at two and half cylindrical shell 311 two ends and front fixed cylinder 3 end and the end of rear fixed cylinder 32.Sealing strip 1 and sealing strip two are integrally connected, and improve corner sealing property between half cylindrical shell 311 both sides and two ends.
Forward and backward two sections of shell side layering dividing plate 4 is separately fixed in front fixed cylinder 3 and rear fixed cylinder 32, the front and rear end of shell side layering dividing plate 4 is welded and fixed with the front tube sheet 3a on front fixed cylinder 3 and the back tube sheet 32a on rear fixed cylinder 32 respectively, the inwall of the upper and lower end face and front fixed cylinder 3 that are positioned at shell side layering dividing plate 4 leading portion is welded and fixed, and the inwall of the upper and lower end face and rear fixed cylinder 32 that are positioned at shell side layering dividing plate 4 back segment is welded and fixed.The upper and lower end face in shell side layering dividing plate 4 stage casing is all fixed with sealing gasket 5, the sealing gasket 5 be positioned on the upper and lower end face in shell side layering dividing plate 4 stage casing can fit with the inwall of two and half cylindrical shells 311 respectively against.
Sealing gasket 5 comprises body 51 and two pieces of sealing projections 52, one end of body 51 has U-shaped groove, the upper and lower end face in shell side layering dividing plate 4 stage casing can embed in U-shaped groove respectively, body 51 is fixed on shell side layering dividing plate 4 by bolt 6 and nut 61, two pieces of sealing projections 52 lay respectively at the both sides of body 51 and the other end of opposing body 51 is protruding, and two pieces of angles sealed between projections 52 are obtuse angle.Sealing gasket 5 seals by being formed between U-shaped groove and shell side layering dividing plate 4, then is fitted against the sealing realized between half cylindrical shell 311 by the inwall of two pieces of sealing projections 52 and half cylindrical shell 311.Body 51 both sides are also provided with compressing tablet 53, bolt 6 and nut 61 respectively with compressing tablet 53 against compression.
Seal fixing when two and half cylindrical shells 311 are installed together and between front fixed cylinder 3 and rear fixed cylinder 32, the heat exchange of evaporimeter can be realized, after a long time use, by two plate cylindrical shells are disassembled, outside tube bank in cylindrical shell is just exposed to, tube bank can be rinsed easily, after flushing completes, two and half cylindrical shells 311 be reinstalled and can reuse together, greatly facilitate the maintaining of evaporimeter.
Embodiment two
The present embodiment with the structure of embodiment one and principle substantially identical, different place is: as shown in Figure 6, shell side layering dividing plate has two pieces to the present embodiment two, forms three refrigerating chambers between shell side layering dividing plate and middle cylinder body.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. a dry evaporator, comprise front header (1), rear header (2) and the cylindrical shell be arranged between front header (1) and rear header (2), it is characterized in that, described cylindrical shell comprises the front fixed cylinder (3) set gradually, middle cylinder body (31) and rear fixed cylinder (32), described front fixed cylinder (3) is fixed with front header (1), described rear fixed cylinder (32) and rear header (2) are fixed, half cylindrical shell (311) that described middle cylinder body (31) is circular arc by two cross sections forms, the two ends of two described half cylindrical shells (311) and dual-side are along all having bead (311a), two described half cylindrical shells (311) are fixedly connected with by the bead (311a) of bolt (6) through both sides, the end of described front fixed cylinder (3) and the end of rear fixed cylinder (32) are all fixed with flange (33), the bead (311a) at two described half cylindrical shell (311) two ends is fitted fixing with the flange (33) on the end of the flange (33) on front fixed cylinder (3) end and rear fixed cylinder (32) respectively.
2. dry evaporator according to claim 1, it is characterized in that, two described half cylindrical shells (311) are in distributing up and down, the equal semicircular in shape in cross section of two described half cylindrical shells (311), two side flanges (311a) of two described half cylindrical shells (311) lay respectively at the both sides of middle cylinder body (31).
3. dry evaporator according to claim 1, is characterized in that, is fixed with sealing strip one (34) between two upper corresponding both sides of described half cylindrical shell (311).
4. dry evaporator according to claim 3, it is characterized in that, between the flange (33) on the flange (33) on the bead (311a) at two described half cylindrical shell (311) two ends and front fixed cylinder (3) end and the end of rear fixed cylinder (32), be all fixed with sealing strip two.
5. dry evaporator as claimed in any of claims 1 to 4, it is characterized in that, at least one shell side layering dividing plate (4) is provided with in described cylindrical shell (31), form at least two refrigerating chambers (4a) between described shell side layering dividing plate (4) and cylindrical shell (31), described shell side layering dividing plate (4) and front fixed cylinder (3), to be all tightly connected between middle cylinder body (31) and rear fixed cylinder (32).
6. dry evaporator according to claim 5, it is characterized in that, described shell side layering dividing plate (4) is front, latter two sections are separately fixed in front fixed cylinder (3) and rear fixed cylinder (32), before described shell side layering dividing plate (4), rear end face is welded and fixed with the front tube sheet (3a) on front fixed cylinder (3) and the back tube sheet (32a) on rear fixed cylinder (32) respectively, be positioned at the upper of described shell side layering dividing plate (4) leading portion, the inwall of lower surface and front fixed cylinder (3) is welded and fixed, be positioned at the upper of described shell side layering dividing plate (4) back segment, the inwall of lower surface and rear fixed cylinder (32) is welded and fixed.
7. dry evaporator according to claim 6, it is characterized in that, the upper and lower end face in described shell side layering dividing plate (4) stage casing is all fixed with sealing gasket (5), be positioned at sealing gasket (5) on the upper and lower end face in described shell side layering dividing plate (4) stage casing can respectively with two the inwall of described half cylindrical shell (311) fit against.
8. dry evaporator according to claim 7, it is characterized in that, described sealing gasket (5) comprises body (51) and two pieces of sealings projection (52), one end of described body (51) has U-shaped groove, described shell side layering dividing plate (4) stage casing upper, lower surface can embed in U-shaped groove respectively, described body (51) is fixed on shell side layering dividing plate (4) by bolt (6) and nut (61), two pieces of described sealing projections (52) lay respectively at the both sides of body (51) and the other end of opposing body (51) is protruding, angle between two pieces of described sealing projections (52) is obtuse angle.
9. dry evaporator according to claim 8, it is characterized in that, described body (51) both sides are also provided with compressing tablet (53), described bolt (6) and nut (61) respectively with compressing tablet (53) against compression.
10. dry evaporator according to claim 5, it is characterized in that, described front fixed cylinder (3) is provided with the outlet pipe (3b) be communicated with refrigerating chamber (4a) one_to_one corresponding, and described rear fixed cylinder (32) is provided with the water inlet pipe (32b) be communicated with refrigerating chamber (4a) one_to_one corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362734.9A CN104879959B (en) | 2015-06-24 | 2015-06-24 | A kind of dry evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362734.9A CN104879959B (en) | 2015-06-24 | 2015-06-24 | A kind of dry evaporator |
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| Publication Number | Publication Date |
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| CN104879959A true CN104879959A (en) | 2015-09-02 |
| CN104879959B CN104879959B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362734.9A Active CN104879959B (en) | 2015-06-24 | 2015-06-24 | A kind of dry evaporator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749970A (en) * | 2008-12-19 | 2010-06-23 | 李迪文 | Refrigeration system residual heat recycling device |
| JP2010249439A (en) * | 2009-04-17 | 2010-11-04 | Panasonic Corp | Liquid heat exchange device and heat exchange system |
| CN104154781A (en) * | 2013-12-05 | 2014-11-19 | 北京大学工学院包头研究院 | Shell and tube heat exchanger |
| CN204268951U (en) * | 2014-10-23 | 2015-04-15 | 山东凯斯达机械制造有限公司 | The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle |
| CN204346222U (en) * | 2014-11-12 | 2015-05-20 | 茂名西南石化机械设备有限公司 | A kind of shell-and-tube heat exchanger of easy accessibility |
-
2015
- 2015-06-24 CN CN201510362734.9A patent/CN104879959B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749970A (en) * | 2008-12-19 | 2010-06-23 | 李迪文 | Refrigeration system residual heat recycling device |
| JP2010249439A (en) * | 2009-04-17 | 2010-11-04 | Panasonic Corp | Liquid heat exchange device and heat exchange system |
| CN104154781A (en) * | 2013-12-05 | 2014-11-19 | 北京大学工学院包头研究院 | Shell and tube heat exchanger |
| CN204268951U (en) * | 2014-10-23 | 2015-04-15 | 山东凯斯达机械制造有限公司 | The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle |
| CN204346222U (en) * | 2014-11-12 | 2015-05-20 | 茂名西南石化机械设备有限公司 | A kind of shell-and-tube heat exchanger of easy accessibility |
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| Publication number | Publication date |
|---|---|
| CN104879959B (en) | 2018-01-30 |
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Denomination of invention: A dry evaporator Effective date of registration: 20210830 Granted publication date: 20180130 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: TAIZHOU LONGJIANG CHEMICAL MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2021330001276 |
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