CN103017419A - Plate type evaporator - Google Patents
Plate type evaporator Download PDFInfo
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- CN103017419A CN103017419A CN2012105572578A CN201210557257A CN103017419A CN 103017419 A CN103017419 A CN 103017419A CN 2012105572578 A CN2012105572578 A CN 2012105572578A CN 201210557257 A CN201210557257 A CN 201210557257A CN 103017419 A CN103017419 A CN 103017419A
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Abstract
The invention discloses a plate type evaporator, which comprises an evaporating area (1) and an overheat area (2), wherein the evaporating area (1) is formed by tightly connecting a plurality of evaporating heat exchange fins (11) and is used for realizing heat exchange between a refrigerating medium (A) and a refrigerating fluid (B), the overheat area (2) is formed by tightly connecting a plurality of overheat heat exchange fins (21) and is used for realizing the heat exchange between the refrigerating medium (A) after flowing through the evaporating area (1) and a heat fluid (C) after flowing through a condenser, the evaporating area (1) and the overheat area (2) are separated by a flow guide plate (3), the flow guide plate (3) is provided with a flow guide concave groove (31) which guides the refrigerating medium (A) for heating the evaporating area (a) to the overheat area (2), and the cross section of the flow guide concave groove (31) is approximately equal to each flow through area of flow guide joints (31) which are arranged at both ends of the flow guide concave groove (31). The plate type evaporator has the advantage that the problems of large occupation space and low heat exchange efficiency in the existing evaporator are solved.
Description
Technical field
The invention belongs to the design and manufacturing technology field of heat exchanger, particularly a kind of plate-type evaporator.
Background technology
At present, high buildings and large mansions in the city, Hotel's Executive building get more and more, as everyone knows, in order in public building, to bring pleasant environment for people, most large public buildings have all been equipped central air-conditioning, central air-conditioning can be controlled room temperature within certain temperature range, make people that the four seasons be arranged in building the sensation that spring has set in.Evaporimeter is as the vitals of central air-conditioning, and it utilizes under low pressure evaporable characteristics of liquid low-temperature refrigerant, will change through the refrigerant that the throttling downstream pressure reduces the heat that steam also absorbs the medium that is cooled into, reaches the refrigeration purpose.
What the evaporimeter of the central air-conditioning that market is common adopted basically is pipe heat exchanger, and cold-producing medium carries out heat exchange by the heat exchanger tube that is arranged in the outer cover of heat exchanger with extraneous water, and cold-producing medium changes steam into and absorbs the heat of the medium that is cooled, and reaches the refrigeration purpose.For the evaporation efficiency that makes evaporimeter is further improved, liquid outlet end at tubular evaparator, generally also be provided with superheater tube, guarantee the further cooling from the evaporimeter fluid, but in this kind method, the thermal source of superheater tube is the cooling water that enters from the external world, is subjected to the restriction (about 12 ℃ of water temperatures) of thermal source, the degree of superheat of this evaporimeter is relatively low, and heat exchange efficiency is also relatively low.Because this superheater tube can only be communicated with the cooling water of GB requirement and can not be communicated with other coolant medias; Therefore, as new technological trend, in the middle of the application of tubular evaparator, be equipped with board-like subcooler in that the fluid pipeline section of evaporimeter is standing, utilize the heat exchange between the refrigerant before board-like subcooler is realized refrigerant and throttling, further improve the degree of superheat of evaporimeter, so just can improve simultaneously whole unit refrigerating capacity.But the structure of this split type evaporimeter is very complicated, and parts are various, and trouble is installed, and overall volume is larger, and it is also larger to take up room, so that the floor space of whole central air-conditioning is larger.
Complicated for solving evaporation structure, the problem that dutycycle is higher, U.S. patent documents US2010/0065262Al discloses a kind of plate type heat exchanger, and it can be used as evaporimeter and uses.The heat exchanger structure of its relative tubular type is simple, and floor space is little; But it does not make the superheater that further gasifies through the refrigerant behind the evaporimeter, and therefore, the excessively thermal effect of this evaporimeter can not meet the demands, and compressor has the risk that is subject to liquid hammer.And in the prior art, it also is the split-type structural that connects by pipeline that this board-like evaporimeter installs superheater additional.Its floor space still can not satisfy the requirement of compact central air conditioner system.
Chinese patent file CN2604667Y discloses a kind of plate type heat exchanger that integrates preheating, sterilization, cools off.For solve sterilization in the prior art and fast cooling adopt two cover autonomous devices move simultaneously the using energy source of existence insufficient, waste water and problem that equipment investment is large.This heat exchanger is that the multi-disc plate type heat exchanger is closely connected, set up flow deflector in the centre and formed waste heat exchange area and high-temperature sterilization district, it is by pre-backing 1, sterilization sheet 4, fin 2, flow deflector 3 and high-temperature heating sheet 5 form, cold liquid is through preheating and sterilization, flows out emit heat in fin after, and high-temperature medium can be with hot water or superheated vapor, in heating plate, emit heat, because they connect tight heat and can fully exchange.But the interior shape of the deflector 3 in this plate type heat exchanger is parallelogram, can cause rate of flow of fluid too small during fluid process deflector 3, finally causes heat exchange efficiency lower, can not satisfy the requirement of the evaporimeter heat exchanging efficient in the central air-conditioning.
Summary of the invention
For this reason, technical problem to be solved by this invention is the problem that existing evaporimeter takes up room greatly, heat exchange efficiency is low, and then provides a kind of dutycycle little, the evaporimeter that heat exchange efficiency is high.
For solving the problems of the technologies described above, plate-type evaporator of the present invention, it comprises evaporating area, described evaporating area closely is formed by connecting by a plurality of evaporation and heat-exchange sheets, is used for realizing the heat exchange of refrigerant and freezing liquid; The overheated zone, described overheated zone closely is formed by connecting by a plurality of overheated heat exchanger fins, for the heat exchange that realizes through the hot fluid behind the refrigerant after the described evaporating area and the process condenser; Described evaporating area and described overheated zone are by a deflector isolation, described deflector is provided with for the diversion groove that the described refrigerant after the described evaporating area heating is guided to described overheated zone, and the area of passage of the water conservancy diversion interface at the sectional area of described diversion groove and two ends about equally.
That is to say that the sectional area of described diversion groove can be selected to be set to equate fully with the area of passage of the water conservancy diversion interface at two ends, also can be slightly larger than or be slightly less than the area of passage of the water conservancy diversion interface at two ends.The sectional area that its scope definition that is slightly larger than or is slightly less than is described diversion groove is compared to differ up and down with the area of passage of the water conservancy diversion interface at two ends and is no more than 10%, preferably is no more than 5%.
In the above-mentioned plate-type evaporator, described diversion groove is shaped to streamlined.
In the above-mentioned plate-type evaporator, form pod apertures and a plurality of regularly arranged heat exchange groove for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet and described overheated heat exchanger fin.
In the above-mentioned plate-type evaporator, described heat exchange groove is herringbone, and the described heat exchange groove on the adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.
In the above-mentioned plate-type evaporator, the described pod apertures place of adjacent described evaporation and heat-exchange sheet and described overheated heat exchanger fin adopts seal gasket to be connected and sealed.
In the above-mentioned plate-type evaporator, the two ends of described evaporimeter arrange the heat exchange end cap.
In the above-mentioned plate-type evaporator, be welded to connect between described heat exchange end cap, described evaporation and heat-exchange sheet, described deflector, the described overheated heat exchanger fin.
In the above-mentioned plate-type evaporator, described hot fluid directly is circulated in the described evaporating area through the described refrigerant that forms low-temp low-pressure after the choke valve throttling behind the overheated zone again and carries out heat exchange with described freezing liquid.
In the above-mentioned plate-type evaporator, form on described overheated heat exchanger fin and the described deflector for the refrigerant pod apertures that described refrigerant is guided to described evaporating area, between the adjacent described refrigerant pod apertures seal washer is set, is used for the described heat exchange groove of described refrigerant pod apertures and described overheated heat exchanger fin is isolated.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) evaporimeter of the present invention adopts the plate-type heat-exchange sheet to realize heat exchange, and it has increased an overheated zone, and overheated zone and evaporating area separate by a deflector, the compact conformation of whole evaporimeter, and split type evaporimeter floor space is lower with respect to having now; Simultaneously, the sectional area of the diversion groove that deflector of the present invention is offered equates with the sectional area of two end interfaces, makes the flow velocity of refrigerant stable in air deflector, and heat exchange efficiency improves greatly.
(2) offer a plurality of regularly arranged heat exchange grooves on the heat exchanger plates of the present invention and be used for flowing of heat transferring medium, this heat exchange groove is herringbone, with respect to the existing heat exchange plate that the heat exchange groove is not set, heat exchange area increases between the heat exchanger plates of the present invention, and heat exchange efficiency further improves.
(3) hot fluid of the present invention is through the fluid behind the condenser, after the throttling heat exchange, in the overheated zone, can also realize throttling before refrigerant excessively cold, increase the refrigerating capacity of unit; And above-mentioned all functions are integrated, and are easy to process, are convenient to install.
Description of drawings
For content of the present invention is more likely to be clearly understood, the below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of plate-type evaporator of the present invention;
Fig. 2 is the stereogram of deflector.
Reference numeral is expressed as among the figure:
The 1-evaporating area, 11-evaporation and heat-exchange sheet, 2-overheated zone, the overheated heat exchanger fin of 21-, 112-pod apertures, 121-heat exchange groove, 211-refrigerant pod apertures, 3-deflector, 31-diversion groove, 32-water conservancy diversion interface, 4-heat exchange end cap, A-refrigerant, B-freezing liquid, C-cryogenic freezing liquid.
The specific embodiment
Below with reference to accompanying drawing, use following examples that the present invention is further set forth.
Fig. 1, Fig. 2 are board-like cool condenser of the present invention.This plate-type evaporator comprises evaporating area 1, and described evaporating area 1 closely is formed by connecting by a plurality of evaporation and heat-exchange sheets 11, is used for realizing the heat exchange of refrigerant A and freezing liquid B; Overheated zone 2, described overheated zone 2 closely is formed by connecting by a plurality of overheated heat exchanger fins 21, for the heat exchange that realizes through the hot fluid C behind the refrigerant A after the described evaporating area 1 and the process condenser; Described evaporating area 1 is isolated by a deflector 3 with described overheated zone 2, described deflector 3 is provided with for the diversion groove 31 that the described refrigerant A after described evaporating area 1 heating is guided to described overheated zone 2, the sectional area of described diversion groove 31 equates with the area of passage of the water conservancy diversion interface 32 at two ends, make the flow velocity of refrigerant stable in air deflector, heat exchange efficiency improves greatly.
In the present embodiment, described refrigerant A is freon, and described cryogenic freezing liquid C is through the hot fluid behind the condenser.Described hot fluid C forms the described refrigerant A of low-temp low-pressure after passing through choke valve 5 throttlings again behind the overheated zone, described refrigerant A directly is circulated in the described evaporating area 1 and carries out heat exchange with described freezing liquid B.Wherein, described freezing liquid B is the associated medias such as water or salt solution.
Form pod apertures 112 and a plurality of regularly arranged heat exchange groove 121 for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet 11 and described overheated heat exchanger fin 21.Described heat exchange groove 121 is herringbone, and the described heat exchange groove 121 on the adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.The heat exchange area of this heat exchanger plates is large, and heat exchange efficiency further improves.
Adjacent described evaporation and heat-exchange sheet 11 and described pod apertures 112 places of described overheated heat exchanger fin 21 adopt seal gasket to be connected and sealed.
The two ends of described evaporimeter arrange heat exchange end cap 4, are welded to connect between described heat exchange end cap 4, described evaporation and heat-exchange sheet 11, described deflector 3, the described overheated heat exchanger fin 21.
Form on described overheated heat exchanger fin 21 and the described deflector 3 for the refrigerant pod apertures 211 that described refrigerant A is guided to described evaporating area 1, between the adjacent described refrigerant pod apertures 211 seal washer is set, is used for described refrigerant pod apertures 211 isolated with the described heat exchange groove 121 of described overheated heat exchanger fin 21.
The course of work of this plate-type evaporator is as follows:
As shown in Figure 1, freezing liquid B enters on the described evaporation and heat-exchange sheet 11 of interval setting through heat exchange end cap 4, flow in the heat exchanger channels of described heat exchange groove 121 formation, after the heat exchange of described hot fluid C through the overheated zone behind the condenser, form again the described refrigerant A of low-temp low-pressure through choke valve 5 throttlings, described refrigerant A directly enters on the evaporimeter heat exchanger fin 11 adjacent with described freezing liquid B in the described evaporating area 1 by described refrigerant pod apertures 211, carries out heat exchange with described freezing liquid B; Described refrigerant A through evaporating area 1 heat exchange after, the described water conservancy diversion interface 32 through described deflector 3 enters to described overheated zone 2 again, and carries out heat exchange by the described hot fluid C behind the condenser, discharges the described refrigerant A of gaseous state finally by outlet.
In other embodiments, described diversion groove 31 is shaped to streamlined, its sectional area is set to be slightly larger than or to be slightly less than the area of passage of the water conservancy diversion interface 32 at two ends, the scope definition that is slightly larger than or is slightly less than is that the sectional area of described diversion groove is compared to differ up and down with the area of passage of the water conservancy diversion interface at two ends and is no more than 10%, preferably is no more than 5%.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (9)
1. plate-type evaporator, it comprises
Evaporating area (1), described evaporating area (1) closely is formed by connecting by a plurality of evaporation and heat-exchange sheets (11), is used for realizing the heat exchange of refrigerant (A) and freezing liquid (B);
Overheated zone (2), described overheated zone (2) closely are formed by connecting by a plurality of overheated heat exchanger fins (21), for the heat exchange that realizes through the hot fluid (C) behind the refrigerant (A) after the described evaporating area (1) and the process condenser; It is characterized in that:
Described evaporating area (1) is isolated by a deflector (3) with described overheated zone (2), described deflector (3) is provided with for the diversion groove (31) that the described refrigerant (A) after described evaporating area (1) heating is guided to described overheated zone (2), and the area of passage of the water conservancy diversion interface (32) at the sectional area of described diversion groove (31) and two ends about equally.
2. plate-type condenser according to claim 1 is characterized in that:
The sectional area of described diversion groove (31) is set to equate fully or compares to differ up and down be no more than 10% with the area of passage of the water conservancy diversion interface (32) at two ends.
3. plate-type evaporator according to claim 1 and 2 is characterized in that:
Form pod apertures (112) and a plurality of regularly arranged heat exchange groove (121) for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet (11) and described overheated heat exchanger fin (21).
4. plate-type evaporator according to claim 3 is characterized in that:
Described heat exchange groove (121) is herringbone, and the described heat exchange groove (121) on the adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.
5. the described plate-type evaporator of any one according to claim 1-4 is characterized in that:
Adjacent described evaporation and heat-exchange sheet (11) and the described pod apertures (112) of described overheated heat exchanger fin (21) locate to adopt seal gasket to be connected and sealed.
6. the described plate-type evaporator of any one according to claim 1-5 is characterized in that:
The two ends of described evaporimeter arrange heat exchange end cap (4).
7. plate-type evaporator according to claim 6 is characterized in that:
Be welded to connect between described heat exchange end cap (4), described evaporation and heat-exchange sheet (11), described deflector (3), the described overheated heat exchanger fin (21).
8. the described plate-type evaporator of any one according to claim 1-7 is characterized in that:
Described hot fluid (C) passes through the described refrigerant (A) that forms low-temp low-pressure after choke valve (5) throttling again and directly is circulated to described evaporating area (1) in and described freezing liquid (B) carries out heat exchange after described overheated zone (2).
9. plate-type evaporator according to claim 8 is characterized in that:
Form on described overheated heat exchanger fin (21) and the described deflector (3) for the refrigerant pod apertures (211) that described refrigerant (A) is guided to described evaporating area (1), between the adjacent described refrigerant pod apertures (211) seal washer is set, is used for described refrigerant pod apertures (211) isolated with the described heat exchange groove (121) of described overheated heat exchanger fin (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557257.8A CN103017419B (en) | 2012-08-14 | 2012-12-20 | Plate type evaporator |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102896274 | 2012-08-14 | ||
| CN 201210289627 CN102818403A (en) | 2012-08-14 | 2012-08-14 | Plate-type evaporator |
| CN201210289627.4 | 2012-08-14 | ||
| CN201210557257.8A CN103017419B (en) | 2012-08-14 | 2012-12-20 | Plate type evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017419A true CN103017419A (en) | 2013-04-03 |
| CN103017419B CN103017419B (en) | 2015-04-22 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210289627 Pending CN102818403A (en) | 2012-08-14 | 2012-08-14 | Plate-type evaporator |
| CN201210503266.9A Active CN103591721B (en) | 2012-08-14 | 2012-11-30 | A kind of air-conditioning system |
| CN201210557257.8A Active CN103017419B (en) | 2012-08-14 | 2012-12-20 | Plate type evaporator |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210289627 Pending CN102818403A (en) | 2012-08-14 | 2012-08-14 | Plate-type evaporator |
| CN201210503266.9A Active CN103591721B (en) | 2012-08-14 | 2012-11-30 | A kind of air-conditioning system |
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| Country | Link |
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| CN (3) | CN102818403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994610A (en) * | 2014-06-05 | 2014-08-20 | 南通四方冷链装备股份有限公司 | Evaporator |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818403A (en) * | 2012-08-14 | 2012-12-12 | 苏州必信空调有限公司 | Plate-type evaporator |
| CN103900169A (en) * | 2012-12-28 | 2014-07-02 | 苏州必信空调有限公司 | Supercold compacted type air conditioning unit and air conditioning system with same in high-rise buildings |
| DE102014204936A1 (en) * | 2014-03-17 | 2015-10-01 | Mahle International Gmbh | Heizkühlmodul |
| CN105928231B (en) * | 2016-06-01 | 2018-10-09 | 唐玉敏 | A kind of plural serial stage displacement heat-exchange system |
| CN106016860B (en) * | 2016-06-01 | 2018-10-09 | 唐玉敏 | A kind of heat-exchange system replacement module |
| CN105928241B (en) * | 2016-06-01 | 2018-07-17 | 唐玉敏 | A kind of heat-exchange system multistage series-parallel connection replacement module |
| CN105928242B (en) * | 2016-06-01 | 2018-07-20 | 唐玉敏 | A kind of heat-exchange system plural serial stage replacement module |
| CN105928398A (en) * | 2016-06-01 | 2016-09-07 | 唐玉敏 | Multistage parallel displacement module of heat exchange system |
| CN105928267B (en) * | 2016-06-01 | 2018-10-30 | 唐玉敏 | A kind of plural parallel stage displacement heat-exchange system |
| CN105928240B (en) * | 2016-06-01 | 2019-04-12 | 唐玉敏 | A kind of heat-exchange system |
| CN105928397B (en) * | 2016-06-01 | 2018-03-20 | 唐玉敏 | A kind of multistage series-parallel connection displacement heat-exchange system |
| CN106989624B (en) * | 2017-05-05 | 2022-08-19 | 仲恺农业工程学院 | Plate-type double-dryness flow-dividing heat-exchanging evaporator |
| CN111328247B (en) * | 2020-03-03 | 2022-11-11 | 北京百度网讯科技有限公司 | Phase change cooling system |
| EP4030119A1 (en) | 2021-01-15 | 2022-07-20 | Johnson Controls Denmark ApS | A refrigerant processing unit, a method for evaporating a refrigerant and use of a refrigerant processing unit |
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| CN103591721A (en) * | 2012-08-14 | 2014-02-19 | 苏州必信空调有限公司 | Air conditioning system |
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| GB2059562B (en) * | 1979-09-21 | 1983-11-16 | Berti P M | Liquid-type evaporator |
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- 2012-08-14 CN CN 201210289627 patent/CN102818403A/en active Pending
- 2012-11-30 CN CN201210503266.9A patent/CN103591721B/en active Active
- 2012-12-20 CN CN201210557257.8A patent/CN103017419B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116048A (en) * | 1997-02-18 | 2000-09-12 | Hebert; Thomas H. | Dual evaporator for indoor units and method therefor |
| JP2007127307A (en) * | 2005-11-01 | 2007-05-24 | Ebara Refrigeration Equipment & Systems Co Ltd | Refrigerating machine and its operation method |
| CN203024504U (en) * | 2012-08-14 | 2013-06-26 | 苏州必信空调有限公司 | Plate-type evaporator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103994610A (en) * | 2014-06-05 | 2014-08-20 | 南通四方冷链装备股份有限公司 | Evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103591721A (en) | 2014-02-19 |
| CN103591721B (en) | 2015-11-04 |
| CN102818403A (en) | 2012-12-12 |
| CN103017419B (en) | 2015-04-22 |
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Address after: 215000 No.158 Jinshajiang Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Bixin energy technology (Suzhou) Co.,Ltd. Address before: 215002 plant 11, No. 158, Jinshajiang Road, high tech Zone, Suzhou, Jiangsu Province Patentee before: SUZHOU BSE AIR CONDITIONER Co.,Ltd. |