CN204630429U - Water bath type vaporizer prevents hot water flowing short-circuit structure - Google Patents
Water bath type vaporizer prevents hot water flowing short-circuit structure Download PDFInfo
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- CN204630429U CN204630429U CN201520183607.8U CN201520183607U CN204630429U CN 204630429 U CN204630429 U CN 204630429U CN 201520183607 U CN201520183607 U CN 201520183607U CN 204630429 U CN204630429 U CN 204630429U
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- tube bank
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- urceolus
- cryogenic liquid
- storage barrel
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Abstract
The utility model relates to a kind of water bath type vaporizer and prevents hot water to flow short-circuit structure, solves the excessive hot water caused of storage barrel and cryogenic liquid space between pipe is restrained and to flow short circuit problem.Cryogenic liquid is fixedly installed in storage barrel around pipe tube bank and tube bank central tube, and cryogenic liquid is located at outside tube bank central tube around pipe tube bundle wrapper; Tube bank urceolus is fixedly installed in storage barrel, and is set in cryogenic liquid outside pipe tube bank, and tube bank urceolus madial wall and cryogenic liquid restrain spacing between lateral wall around pipe, the spacing of restraining between urceolus lateral wall and storage barrel madial wall is all non-vanishing; Support ring is fixed on tube bank central tube; Gusset one end is fixed with tube bank urceolus, and the other end and support ring are fixed; The top of storage barrel madial wall is circumferentially fixed with back-up ring under a circle, the lateral wall top of tube bank urceolus is circumferentially fixed with back-up ring on a circle, upper back-up ring and lower back-up ring are tightly connected, and are lived by the top seal of the mezzanine space between tube bank urceolus lateral wall and storage barrel madial wall.
Description
Technical field
The utility model relates to a kind of water bath type vaporizer and prevents hot water flowing short-circuit structure.
Background technology
The operation principle of water bath type vaporizer utilizes water vapour as thermal source, aqueous water in cylindrical shell shell side is as intermediate heat medium, heating is positioned at the liquid cryogenic fluid around pipe tube bank, the vaporization being usually used in cryogenic liquid (as liquid oxygen, liquid nitrogen etc.) is outer defeated, as application number be 200920295095.9, name is called the Chinese patent of water bath type vaporizer.From heat transfer principle, we can know, under the condition that convection heat transfer' heat-transfer by convection process has been determined at cold and hot fluid out temperature, the logarithmic mean temperature difference (LMTD) perseverance of adverse current is greater than the logarithmic mean temperature difference (LMTD) of following current.From the angle of driving force of heat transfer logarithmic mean temperature difference (LMTD), adverse current is always better than following current, and adverse current can improve heat exchange efficiency, reduces total heat exchange area of vaporizer, reduces heat exchanger cost.Based on the above-mentioned advantage of adverse current, from the viewpoint of energy-conservation and reduce costs, in the Calculation of Heat Transfer Model Selection hot water flow direction of water bath type vaporizer and heat exchange coil, cryogenic liquid flows between direction is the heat transfer model of reverse flow.
After the Calculation of Heat Transfer model of water bath type vaporizer is determined, we wish that the practical working situation of water bath type vaporizer is as much as possible close to computation model, have cold fluid and hot fluid stream clearly, firmly avoid the phenomenon that cold fluid and hot fluid stream is unclear.Water bath type vaporizer practical working situation any departs from (namely departing from Calculation of Heat Transfer model) all can make vaporizer heat exchange efficiency reduce, and result will cause the increase of actual steam consumption (namely energy consumption increases) or cause the increase of vaporizer heat exchange area (namely vaporizer manufacturing cost increases).
Because water bath type vaporizer cryogenic liquid can occur around pipe rebound phenomenon in the fabrication process around pipe tube bank, the common way of water bath type vaporizer manufacturing firm increases storage barrel diameter, strengthens storage barrel and the space of cryogenic liquid between pipe is restrained.Consequently water bath type vaporizer in the course of the work, should from top to bottom from cryogenic liquid around pipe the interbank hot water flow through some from storage barrel and cryogenic liquid, the space short circuit between pipe is restrained flows away, the liquid cryogenic fluid heat exchange of part hot water not with cryogenic liquid in pipe is restrained, cryogenic liquid reduces around the interbank hot water exothermic coefficient of pipe, make the working condition of vaporizer deviate from Calculation of Heat Transfer model, cause vaporizer heat exchange efficiency to reduce.In order to avoid the excessive hot water caused in storage barrel and cryogenic liquid space between pipe is restrained flows short circuit, therefore technological improvement is carried out to existing water bath type vaporizer internal structure.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provide a kind of water bath type vaporizer of reasonable in design to prevent hot water flowing short-circuit structure, solve the excessive hot water caused of storage barrel and cryogenic liquid space between pipe is restrained to flow short circuit problem, hot water flowing stream is clear, make the practical working situation of water bath type vaporizer press close to adopted Calculation of Heat Transfer model, improve the heat transfer efficiency of water bath type vaporizer.
The technical scheme in the invention for solving the above technical problem is: a kind of water bath type vaporizer prevents hot water to flow short-circuit structure, comprises storage barrel and cryogenic liquid around pipe tube bank and tube bank central tube; Cryogenic liquid is fixedly installed in storage barrel around pipe tube bank and tube bank central tube, and cryogenic liquid is located at outside tube bank central tube around pipe tube bundle wrapper; It is characterized in that: also comprise tube bank urceolus, support ring, gusset, upper back-up ring and lower back-up ring; Tube bank urceolus is fixedly installed in storage barrel, and is set in cryogenic liquid outside pipe tube bank, and the spacing that tube bank urceolus madial wall and cryogenic liquid are restrained between lateral wall around pipe is non-vanishing, and the spacing between tube bank urceolus lateral wall and storage barrel madial wall is non-vanishing; Support ring is fixed on tube bank central tube; Gusset one end is fixed with tube bank urceolus, and the other end and support ring are fixed; The top of storage barrel madial wall is circumferentially fixed with back-up ring under a circle, the lateral wall top of tube bank urceolus is circumferentially fixed with back-up ring on a circle, upper back-up ring and lower back-up ring are tightly connected, and are lived by the top seal of the mezzanine space between tube bank urceolus lateral wall and storage barrel madial wall.
The utility model also comprises filler strip, and filler strip is fixedly installed on tube bank urceolus madial wall and cryogenic liquid is restrained between lateral wall around pipe, tube bank urceolus and cryogenic liquid is restrained around pipe and separates.
The place of being tightly connected of upper back-up ring described in the utility model and lower back-up ring restrains around pipe higher than described cryogenic liquid.
Lower back-up ring described in the utility model and upper back-up ring are all restrained around pipe higher than cryogenic liquid.
Filler strip described in the utility model is multi-disc, is uniformly distributed.
The utility model is provided with sealing ring between upper back-up ring and lower back-up ring, makes to seal between back-up ring and lower back-up ring.
The utility model has annular groove on lower back-up ring, and sealing ring is fixed in annular groove.
Gusset described in the utility model is four pieces, is set to 90 degrees mutually.
Gusset described in the utility model has mounting groove, and tube bank central tube is connected in mounting groove, and then gusset is welded and fixed with tube bank central tube.
The utility model compared with prior art, have the following advantages and effect: in storage barrel, hot water from top to bottom flows as hot fluid in interlayer between tube bank central tube and tube bank urceolus, carry out heat exchange with the cold fluid of cryogenic liquid in pipe is restrained, the water temperature between tube bank central tube and tube bank urceolus in interlayer reduces from top to bottom gradually along cylindrical shell short transverse.By restraining urceolus at cryogenic liquid around pipe tube bank outer setting, and by the stop of upper back-up ring and lower back-up ring and sealing function, ensure that hot water flows through cryogenic liquid from top to bottom and restrains around pipe, the space short circuit between pipe is restrained flows away from storage barrel and cryogenic liquid to prevent hot water, hot water in mezzanine space between tube bank urceolus lateral wall and storage barrel madial wall is in not flow regime, hot water flowing stream is clear, the working condition of water bath type vaporizer is made to press close to Calculation of Heat Transfer model, improve the heat exchange efficiency of water bath type vaporizer and the stability of heat transfer process, reduce the heat exchange area of steam consumption quantity and vaporizer.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model embodiment is arranged on water bath type vaporizer.
Fig. 2 be Fig. 1 partial structurtes schematic diagram.
Fig. 3 is the plan structure schematic diagram of Fig. 2.
Fig. 4 is that the tube bank urceolus of the utility model embodiment is set in cryogenic liquid overlooks partial structurtes schematic diagram outside pipe tube bank.
Fig. 5 is the assembly structure schematic diagram of the lower back-up ring of the utility model embodiment, sealing ring, upper back-up ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
See Fig. 1 ~ Fig. 5, cryogenic liquid is fixedly installed in storage barrel 1 around pipe tube bank 2 and tube bank central tube 3, and cryogenic liquid is set in outside tube bank central tube 3 around pipe tube bank 2.
Tube bank urceolus 4 is fixedly installed in storage barrel 1, and is set in cryogenic liquid outside pipe tube bank 2, namely restrains urceolus 4 and restrains between 2 around pipe at storage barrel 1 and cryogenic liquid.The spacing that tube bank urceolus 4 madial wall and cryogenic liquid are restrained between 2 lateral walls around pipe is non-vanishing, namely restrain urceolus 4 madial wall and cryogenic liquid to restrain between 2 lateral walls around pipe there is mezzanine space, and restrain urceolus 4 madial wall and cryogenic liquid restrains in the mezzanine space between 2 lateral walls around pipe the aqueous water that can flow; Spacing between tube bank urceolus 4 lateral wall and storage barrel 1 madial wall is non-vanishing, namely restrain between urceolus 4 lateral wall and storage barrel 1 madial wall and there is mezzanine space, in the mezzanine space between tube bank urceolus 4 lateral wall and storage barrel 1 madial wall, there is immobilising aqueous water.
Filler strip 11 is fixedly installed on tube bank urceolus 4 madial wall and cryogenic liquid is restrained between 2 lateral walls around pipe, tube bank urceolus 4 madial wall and cryogenic liquid are restrained 2 lateral walls around pipe separate, ensure that the spacing that tube bank urceolus 4 madial wall and cryogenic liquid are restrained between 2 lateral walls around pipe is non-vanishing.Filler strip 11 is multi-disc, is uniformly distributed, and ensures that tube bank urceolus 4 madial wall and cryogenic liquid restrain the uniformity of the spacing between 2 lateral walls around pipe.The quantity of filler strip 11 is restrained 2 tube bundle external diameters by cryogenic liquid around pipe and is determined.The thickness of filler strip 11 is 5mm, thus makes tube bank urceolus 4 madial wall and cryogenic liquid restrain the spacing keeping 5mm between 2 lateral walls around pipe.Filler strip 11 welds with around pipe anchor ear, so just filler strip 11 is fixedly installed on tube bank urceolus 4 madial wall and cryogenic liquid restrain between 2 lateral walls around pipe.
Support ring 10 is fixedly welded on tube bank central tube 3 top.The numerical value of support ring 10 internal diameter and external diameter is determined by restraining central tube 3.
Gusset 8 totally four pieces, is set to 90 degrees mutually, like this support and stiffening effect evenly.Gusset 8 one end is welded and fixed with tube bank urceolus 4 upper inner, and the other end reserves suitable length and is welded on support ring 10 upper surface, so just makes tube bank urceolus 4 fix.Gusset 8 has mounting groove, and tube bank central tube 3 is connected in mounting groove, and then gusset 8 is welded and fixed with tube bank central tube 3, easy for installation like this and more firm.
The top of storage barrel 1 madial wall is circumferentially welded with back-up ring 5 under a circle, lower back-up ring 5 internal diameter 4mm larger than tube bank urceolus 4 external diameter, and lower back-up ring 5 upper surface middle part has width is 8mm, the degree of depth is 5mm annular groove 9, annular groove 9 is for installing sealing ring 6.Lower back-up ring 5 thickness is 15mm.
The lateral wall top of tube bank urceolus 4 is circumferentially welded with back-up ring 7 on a circle.Upper back-up ring 7 external diameter 4mm less of storage barrel 1 internal diameter, upper back-up ring 7 thickness is 15mm.Upper back-up ring 7 is tightly pressed on lower back-up ring 5, and upper back-up ring 7 and lower back-up ring 5 are tightly connected, and is lived by the top seal of the mezzanine space between tube bank urceolus 4 lateral wall and storage barrel 1 madial wall.Sealing reason: ensure that hot water flows through cryogenic liquid around pipe tube bank 2 from top to bottom in the mezzanine space between tube bank central tube 3 lateral wall and tube bank urceolus 4 madial wall, prevent hot water from flowing into the mezzanine space of restraining between urceolus 4 lateral wall and storage barrel 1 madial wall, make the aqueous water in the mezzanine space between tube bank urceolus 4 lateral wall and storage barrel 1 madial wall be in not flow regime.
The place that is tightly connected of upper back-up ring 7 and lower back-up ring 5 restrains 2 higher than cryogenic liquid around pipe, sealing place of the mezzanine space between such tube bank urceolus 4 lateral wall and storage barrel 1 madial wall is just restrained above in the of 2 at liquid around pipe, the cryogenic liquid that can prevent the part hot water in above sealing place of the mezzanine space be between tube bank urceolus 4 lateral wall and storage barrel 1 madial wall and cryogenic liquid from restraining between 2 around pipe like this produces poor efficiency heat exchange, ensure that whole hot water flows through in the interlayer between tube bank central tube 3 lateral wall and tube bank urceolus 4 madial wall from top to bottom, whole hot water is made to carry out countercurrent flow at the cryogenic liquid of restraining in the interlayer between central tube 3 lateral wall and tube bank urceolus 4 madial wall and cryogenic liquid is restrained between 2 around pipe.
Lower back-up ring 5 and upper back-up ring 7 all restrain 2 higher than cryogenic liquid around pipe, so just more easily can ensure the place that is tightly connected of back-up ring 7 and lower back-up ring 5 higher than cryogenic liquid around pipe tube bank 2.
Between upper back-up ring 7 and lower back-up ring 5, be provided with sealing ring 6, make to seal between back-up ring 7 and lower back-up ring 5.Sealing ring 6 is fixed in annular groove 9, and sealing ring 6 is O RunddichtringO, and material is heat resistant rubber.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the explanation of the utility model structure example.
Claims (9)
1. water bath type vaporizer prevents hot water to flow a short-circuit structure, comprises storage barrel and cryogenic liquid around pipe tube bank and tube bank central tube; Cryogenic liquid is fixedly installed in storage barrel around pipe tube bank and tube bank central tube, and cryogenic liquid is located at outside tube bank central tube around pipe tube bundle wrapper; It is characterized in that: also comprise tube bank urceolus, support ring, gusset, upper back-up ring and lower back-up ring; Tube bank urceolus is fixedly installed in storage barrel, and is set in cryogenic liquid outside pipe tube bank, and the spacing that tube bank urceolus madial wall and cryogenic liquid are restrained between lateral wall around pipe is non-vanishing, and the spacing between tube bank urceolus lateral wall and storage barrel madial wall is non-vanishing; Support ring is fixed on tube bank central tube; Gusset one end is fixed with tube bank urceolus, and the other end and support ring are fixed; The top of storage barrel madial wall is circumferentially fixed with back-up ring under a circle, the lateral wall top of tube bank urceolus is circumferentially fixed with back-up ring on a circle, upper back-up ring and lower back-up ring are tightly connected, and are lived by the top seal of the mezzanine space between tube bank urceolus lateral wall and storage barrel madial wall.
2. water bath type vaporizer according to claim 1 prevents hot water flowing short-circuit structure, it is characterized in that: also comprise filler strip, filler strip is fixedly installed on tube bank urceolus madial wall and cryogenic liquid is restrained between lateral wall around pipe, tube bank urceolus and cryogenic liquid is restrained around pipe and separates.
3. water bath type vaporizer according to claim 1 and 2 prevents hot water flowing short-circuit structure, it is characterized in that: the place of being tightly connected of described upper back-up ring and lower back-up ring restrains around pipe higher than described cryogenic liquid.
4. water bath type vaporizer according to claim 3 prevents hot water flowing short-circuit structure, it is characterized in that: described lower back-up ring and upper back-up ring are all restrained around pipe higher than cryogenic liquid.
5. water bath type vaporizer according to claim 2 prevents hot water flowing short-circuit structure, it is characterized in that: described filler strip is multi-disc, is uniformly distributed.
6. water bath type vaporizer according to claim 1 and 2 prevents hot water flowing short-circuit structure, it is characterized in that: between upper back-up ring and lower back-up ring, be provided with sealing ring, makes to seal between back-up ring and lower back-up ring.
7. water bath type vaporizer according to claim 6 prevents hot water flowing short-circuit structure, it is characterized in that: on lower back-up ring, have annular groove, sealing ring is fixed in annular groove.
8. water bath type vaporizer according to claim 1 and 2 prevents hot water flowing short-circuit structure, it is characterized in that: described gusset is four pieces, is set to 90 degrees mutually.
9. water bath type vaporizer according to claim 1 and 2 prevents hot water flowing short-circuit structure, it is characterized in that: described gusset has mounting groove, and tube bank central tube is connected in mounting groove, and then gusset is welded and fixed with tube bank central tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520183607.8U CN204630429U (en) | 2015-03-30 | 2015-03-30 | Water bath type vaporizer prevents hot water flowing short-circuit structure |
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| CN201520183607.8U CN204630429U (en) | 2015-03-30 | 2015-03-30 | Water bath type vaporizer prevents hot water flowing short-circuit structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748583A (en) * | 2015-03-30 | 2015-07-01 | 中国空分设备有限公司 | Hot water flowing cutting-out preventing structure of water bath type vaporizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748583A (en) * | 2015-03-30 | 2015-07-01 | 中国空分设备有限公司 | Hot water flowing cutting-out preventing structure of water bath type vaporizer |
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