CN103353191A - Heat exchanger, evaporator and manufacturing method of heat exchange components - Google Patents
Heat exchanger, evaporator and manufacturing method of heat exchange components Download PDFInfo
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- CN103353191A CN103353191A CN2013101199431A CN201310119943A CN103353191A CN 103353191 A CN103353191 A CN 103353191A CN 2013101199431 A CN2013101199431 A CN 2013101199431A CN 201310119943 A CN201310119943 A CN 201310119943A CN 103353191 A CN103353191 A CN 103353191A
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Abstract
The invention discloses a heat exchanger and an evaporator of a compression-type refrigeration system with the heat exchanger. The heat exchanger comprises a plurality of tabular heat exchange components, wherein each heat exchange component comprises a closed accommodating cavity, a working medium inlet and a working medium outlet; the working medium inlet and the working medium outlet are in fluid communication with the accommodating cavity; the working medium inlets of the heat exchange components are used for allowing first phase state fluids to flow in; the working medium outlets of the heat exchange components are used for allowing second phase state fluids to flow out; the first phase state fluids are changed into the second phase state fluids through heat exchange; the accommodating cavity is divided into a plurality of sub-accommodating cavities which are in fluid communication with one another. The main heat exchange components of the heat exchanger provided by the invention are sheet plates, so that the heat exchanger has a better heat transmission performance, is more convenient to clean, is efficient, and saves energy.
Description
Technical field
The present invention relates to the manufacture method of a kind of heat exchanger, vaporising device and heat-exchanging part, belong to the technical field of compression-type refrigerating system.
Background technology
Compression-type refrigerating system mainly has four parts, that is, and and compressor, condenser, choke valve and evaporimeter.After the refrigerant vapour process compressor compresses of evaporimeter low-temp low-pressure out, become the refrigerant vapour of HTHP, in condenser, after the condensation, become the liquid of high normal pressure and temperature, through after the throttling action of choke valve, become the liquid of low normal pressure and temperature.Under environment under low pressure, refrigerant liquid will constantly be vaporized, and vaporescence need to absorb a large amount of heats provides the latent heat of vaporization, and cold-producing medium is the temperature reduction of self at first, then from extraneous absorbing heat, thus the purpose of realization refrigeration.
In large-scale refrigerating system, cold-producing medium evaporates in evaporimeter, after absorbing heat from extraneous refrigerating medium, refrigerant temperature reduce, is pumped into thermal source place absorbing heat, and then is sent back in the evaporimeter, and heat is continued to pass to cold-producing medium in the evaporimeter.Like this iterative cycles reaches the purpose of refrigeration.Traditional shell-and-tube evaporator mainly is comprised of heat exchanger tube, external shell and dividing plate, at dry evaporator, and the cold-producing medium evaporation of in heat exchanger tube, absorbing heat, refrigerating medium moves at shell side.In the wet type evaporimeter, cold-producing medium is in shell side heat absorption evaporation, and refrigerating medium moves at tube side.The heat transfer property of shell-and-tube evaporator is general, safeguards inconvenience.
Use at present wider in addition coil evaporimeter, place it in the refrigerating medium pond, cold-producing medium is at the inner evaporation endothermic of spiral coil, and refrigerating medium is fluid interchange externally.
Summary of the invention
Because the main heat exchanger components of heat exchanger of the present invention is plate, so its heat transfer property is better, clean more convenient, and energy-efficient.
Particularly, the invention discloses a kind of heat exchanger, it comprises a plurality of tabular heat-exchanging parts, described heat-exchanging part comprises the container cavity of sealing, working medium import and the sender property outlet that is communicated with described container cavity fluid, wherein, the working medium import of described heat-exchanging part is used for flowing into the first phase fluid, the second phase flow that the sender property outlet of described heat-exchanging part is used for described the first phase fluid is become through heat exchange goes out, wherein, described container cavity is divided into the sub-container cavity of a plurality of fluid communication with each other.
Particularly, described heat-exchanging part is made by the following method: two essentially identical metallic plates are clamped together aligned with each otherly, and wherein, described two metallic plates have the zone line within neighboring area and the neighboring area; At described zone line, the many places of described two metallic plates are by spot welding; In described neighboring area, described two metallic plates are by the welding of rolling continuously and reserve described working medium import and sender property outlet; Block one of them person of described working medium import and described sender property outlet, thereby in described metallic plate, be blown into high-pressure fluid so that the metallic plate deformation that is not welded together forms described a plurality of sub-container cavity that communicates with each other.
Particularly, described metallic plate is corrosion resistant plate or carbon steel and other metals.
Particularly, described high-pressure fluid is water under high pressure or gases at high pressure.
Selectively, described heat exchanger is condenser, and described the first phase fluid is gaseous fluid, and described the second phase fluid is fluid liquid.
Selectively, described heat exchanger is evaporimeter, and described the first phase fluid is fluid liquid, and described the second phase fluid is gaseous fluid.
Particularly, described heat exchanger also comprises: feed tube, be connected with a plurality of arms on it, and described a plurality of arms respectively fluid are communicated to the working medium import of described a plurality of heat-exchanging parts; And discharge, being connected with a plurality of arms on it, described a plurality of arms respectively fluid are communicated to the sender property outlet of described a plurality of heat-exchanging parts.
More specifically, described heat-exchanging part also comprises the lubricating oil outlet that is communicated with described container cavity fluid, and described lubricating oil outlet is disposed in the bottom of described heat-exchanging part; Described heat exchanger also comprises oil collecting pipe, and described oil collecting pipe is connected with a plurality of arms, and described a plurality of arms respectively fluid are communicated to the lubricating oil outlet of described a plurality of heat-exchanging parts.
According to a further aspect in the invention, also disclose a kind of vaporising device of compression-type refrigerating system, it comprises at least: heat-exchanger tank, contain heating agent in it; Heat exchanger, its as previously mentioned, described heat exchanger is immersed in the heating agent in the described heat-exchanger tank at least in part, the working medium inlet fluid of described heat-exchanging part is communicated to choke valve, the sender property outlet fluid of described heat-exchanging part is communicated to compressor; By this, the described fluid liquid that flow into described container cavity from the working medium import of described heat-exchanging part absorbs heat from described heating agent.
Particularly, described heating agent is subzero salt solution more than 35 degrees centigrade, and described liquid fluid is liquid ammonia.
Preferably, described vaporising device also comprises agitator, and it is arranged in the described heat-exchanger tank, is used for stirring described heating agent.
More preferably, described vaporising device also comprises deflector, and it is substantially curved and be arranged in the bight of described heat-exchanger tank so that the peripheral wall transition in itself and described bight.
According to a further aspect in the invention, a kind of manufacture method of heat-exchanging part of the evaporimeter for compression-type refrigerating system is disclosed, it comprises: two essentially identical metallic plates are clamped together aligned with each otherly, wherein, described two metallic plates have the zone line within neighboring area and the neighboring area; At described zone line, the many places of described two metallic plates are by spot welding; In described neighboring area, described two metallic plates are by the welding of rolling continuously and reserve working medium import and sender property outlet; Block one of them person of described working medium import and described sender property outlet, thereby in described metallic plate, be blown into high-pressure fluid so that the metallic plate deformation that is not welded together forms a plurality of sub-container cavities that communicate with each other.
Description of drawings
In order to explain the present invention, its illustrative embodiments will be described with reference to the drawings hereinafter, in the accompanying drawing:
Fig. 1 schematically shows the perspective view of the heat exchanger of one embodiment of the present invention, has wherein removed the partial component of heat-exchanging part and demonstrates internal structure;
Fig. 2 schematically shows the cut-away view of heat-exchanging part of the heat exchanger of Fig. 1;
Fig. 3 schematically shows the sectional view of A-A direction of the heat-exchanging part of Fig. 2; And
Fig. 4 schematically shows the schematic diagram that a plurality of heat exchangers shown in Figure 1 are immersed in heat-exchanger tank, wherein shows agitator and deflector.
Similar features among the different figure is by similar Reference numeral indication.
The specific embodiment
In the detailed description of following embodiment, the accompanying drawing that reference consists of the part of this description describes.Accompanying drawing shows specific embodiment in the mode of example, and the present invention is implemented in these embodiments.Shown embodiment be not for limit according to all of the embodiments of the present invention.The embodiment that is appreciated that other can be utilized, and change structural or logicality can be made under the prerequisite that does not depart from the scope of the present invention.For accompanying drawing, the term of directionality, such as D score, " on ", " left side ", " right side " etc., use with reference to the orientation of described accompanying drawing.Because the assembly of embodiments of the present invention can be implemented with multiple orientation, these directional terminology are the purposes for explanation, rather than the purpose of restriction.Therefore, the following specific embodiment is not the meaning as restriction, and scope of the present invention is limited by appending claims.
Fig. 1 schematically shows the perspective view of the heat exchanger of one embodiment of the present invention, has wherein removed the partial component of heat-exchanging part and demonstrates internal structure; Fig. 2 schematically shows the cut-away view of heat-exchanging part of the heat exchanger of Fig. 1; Fig. 3 schematically shows the sectional view of A-A direction of the heat-exchanging part of Fig. 2.
As shown in Figure 1-Figure 3, disclose a kind of heat exchanger 100, comprised a plurality of tabular heat-exchanging parts 102.Wherein, this heat-exchanging part 102 is made like this:
Prepare two essentially identical metallic plate P1, P2, by anchor clamps clamping these two metallic plate P1, P2 so that this two metallic plate P1, P2 fit each other aligning, wherein, these two metallic plate P1, P2 all have the zone line within neighboring area and the neighboring area, more preferably, this metallic plate is corrosion resistant plate or carbon steel;
At zone line, predetermined a plurality of contacts to be welded carry out spot welding by the current point welder to the contact M to be welded of two metallic plate P1, P2, and more preferably, these pads M is arranged in the zone line equably;
In the neighboring area, by the rolling soldering appliance to continuously rolling welding and reserve working medium import 106 and sender property outlet 108 of two metallic plate P1, P2;
Block one of them of working medium import 106 and sender property outlet 108, and metallic plate P1, P2 be placed on the press, metallic plate P1, P2 have predetermined spacing to two relative pressing plates of press relatively respectively, in metallic plate, be blown into high-pressure fluid so that thereby the highly consistent deformation of metallic plate P1, P2 generation that is not welded together forms a plurality of sub-container cavities 110 that communicate with each other, more preferably, this high-pressure fluid is water under high pressure.
By this, the heat-exchanging part 102 that forms comprises the container cavity 104 of sealing, working medium import 106 and the sender property outlet 108 that is communicated with container cavity 104 fluids, wherein, the working medium import 106 of heat-exchanging part 102 is positioned at the bottom, be used for flowing into the first phase fluid, the sender property outlet 108 of heat-exchanging part 102 is positioned at top, and the second phase flow that is used for the first phase fluid is become through heat exchange goes out, wherein, container cavity 104 is divided into the sub-container cavity 110 of a plurality of fluid communication with each other.
When aforesaid heat exchanger 100 was used as condenser, the first phase fluid was gaseous fluid, and the second phase fluid is fluid liquid.Otherwise, when aforesaid heat exchanger 100 was used as evaporimeter, the first phase fluid was fluid liquid, and the second phase fluid is gaseous fluid, the import of this moment can be the indicated parts of label mentioned above 108, and outlet can be the parts of label mentioned above 106 indications.
Hereinafter all be to use the situation of especially using as the evaporimeter in the compression-type refrigerating system to be introduced with this heat exchanger 100 as evaporimeter.
As everyone knows, in compression-type refrigerating system, for the lubricate compressors moving component, lubricating oil can be sent in the compressor and be vaporized in compressor, then condensation in condenser, and this lubricating oil can enter in the evaporimeter in company with steam.For lubricating oil separation is fallen, this heat-exchanging part 102 can also comprise the lubricating oil outlet 112 that is communicated with container cavity 110 fluids, further, flow out smoothly for the ease of the lubricating oil that accumulates in the heat-exchanging part 102, this lubricating oil outlet 112 can be disposed in the bottom of heat-exchanging part 102.Be appreciated that, the process of making this heat-exchanging part 102 is basic similar with aforesaid manufacture process, difference is, needs this lubricating oil outlet 112 to be blocked or will only be made lubricating oil outlet 112 can be blown into high-pressure fluid before need to reserving lubricating oil outlet 112 in the rolling welding process again and being blown into high-pressure fluid.
Corresponding with working medium import 106, sender property outlet 108 and the lubricating oil outlet 112 of heat-exchanging part 102, this heat exchanger 100 also is provided with feed tube 114, discharge 116 and oil collecting pipe 118.Particularly, be connected with a plurality of arms on the feed tube 114, these arms respectively fluid are communicated to the working medium import 106 of a plurality of heat-exchanging parts 102; Be connected with a plurality of arms on the discharge 116, these arms respectively fluid are communicated to the sender property outlet 108 of a plurality of heat-exchanging parts 102; Oil collecting pipe 118 is connected with a plurality of arms, and these arms respectively fluid are communicated to the lubricating oil outlet 112 of a plurality of heat-exchanging parts 102.
Structure by this heat exchanger 100, after in the container cavity that enters into respectively successively each heat-exchanging part 102 as refrigerant and the fluid liquid that carries lubricating oil via feed tube 114 and working medium import 106, understand with this heat exchanger 100 heating agent outward and carry out heat exchange, namely, absorbing heat, thereby undergo phase transition, become gaseous state from liquid state; This gaseous fluid is pooled to discharge 116 via sender property outlet 108 again, and the gaseous flow cognition in the discharge 116 flows in the next annealing device; The lubricating oil that enters in the heat-exchanging part 102 can accumulate to the bottom of container cavity 104 and be pooled to oil collecting pipe 118 via lubricating oil outlet 112, and the lubricating oil in the oil collecting pipe 118 can be discharged from.At this, because the container cavities 104 in the heat-exchanging part 102 are divided into a plurality of sub-container cavities 110 that communicate with each other, enter into liquid flow in the container cavity 104 and know from experience that to flow to each sub-container cavity 110 interior and walk so that the heat exchange of fluid is more even between each sub-container cavity 110.
As shown in Figure 1, more preferably, this heat-exchanging part 102 can also comprise working medium import 107 for subsequent use, and it is positioned at top, is used for enabling when aforesaid working medium import 106 is blocked.Accordingly, this heat exchanger 100 also comprises feed tube 115 for subsequent use, is connected with a plurality of arms on this feed tube 115 for subsequent use, and these arms respectively fluid are communicated to the working medium import 107 for subsequent use of a plurality of heat-exchanging parts 102.Be appreciated that, for this preferred heat-exchanging part 102 with working medium import 107 for subsequent use, manufacture process is basic substantially similar with aforesaid manufacture process, difference is, need in the rolling welding process, reserve again lubricating oil outlet 112 and working medium import 107 for subsequent use, and before being blown into high-pressure fluid, need to block or will only make lubricating oil outlet 112 or working medium import 107 for subsequent use can be blown into high-pressure fluid this lubricating oil outlet 112 and working medium import 107 for subsequent use.
Fig. 4 schematically shows the schematic diagram that a plurality of heat exchangers shown in Figure 1 are immersed in heat-exchanger tank, wherein shows agitator and deflector.
In conjunction with Fig. 1 and Fig. 4, a kind of vaporising device 200 of compression-type refrigerating system, it comprises: at least one heat exchanger 100 and heat-exchanger tank 202.As well known to those of ordinary skill in the art, this compression-type refrigerating system at least also comprises compressor, condenser and choke valve usually, yet these devices are all irrelevant with vaporising device of the present invention, so do not give unnecessary details at this.At this, only need to prove that the feed tube 114 of this heat exchanger 100 or feed tube for subsequent use 115 fluids are communicated to air throttle, discharge 116 fluids are communicated to compressor.
In the vaporising device 200 of this compression-type refrigerating system, the fluids in the container cavity 104 that enters into each heat-exchanging part 102 from feed tube 114 or the feed tube for subsequent use 115 of heat exchanger 100 can be liquid ammonia.
Heat-exchanger tank 202 contains such as temperature subzero more than 35 degrees centigrade the heating agent of salt solution, more preferably, the temperature range of this salt solution can be between subzero 15 degrees centigrade to 0 degree centigrade, selectively, the temperature of this salt solution can be subzero more than 10 degrees centigrade.Those skilled in the art should be appreciated that the temperature range of salt solution depends on user's applying working condition.
More preferably, this vaporising device 200 can also comprise agitator 204, and this agitator 204 is arranged in the heat-exchanger tank 202, is used for stirring salt solution so that Temperature Distribution is more even.
More preferably, this vaporising device 200 can also comprise deflector 206, and this deflector 206 is substantially curved and be arranged in the bight of heat-exchanger tank 202 so that the peripheral wall transition in this deflector 206 and bight.Like this, the brine stream of stirring by agitator 204 can waltz through the bight of heat-exchanger tank 202, and can eddy generation.
During 200 work of this vaporising device, carry lubricating oil, can enter in the container cavity 104 of each heat-exchanging part 102 via feed tube 114 and working medium import 106 successively through the refrigerant liquid (such as liquid ammonia) after the choke valve step-down.Because the low pressure pressure in the container cavity 104 is approximately 1-2 atmospheric pressure, under this atmospheric pressure, refrigerant liquid (such as liquid ammonia) very easily other cold-producing mediums (liquid ammonia) absorbing heat around it and then volatilization (if refrigerant liquid is liquid ammonia, then it evaporates into ammonia), this causes the bulk temperature of cold-producing medium (liquid ammonia) further to drop to about about minus 20 degrees.Therefore, the cold-producing medium of heat-exchanging part 102 (such as ammonia) constantly with the salt solution generation heat exchange of heat-exchanger tank 202, finally, liquid refrigerant (such as liquid ammonia) all becomes gas (ammonia) and is pooled to during discharge 116 flow to such as compressor again through sender property outlet 108.Meanwhile, the bottom that lubricating oil flows and saves bit by bit container cavity 104 to the bottom from the top of container cavity 104, last, be flowed to oil collecting pipe 118 through lubricating oil outlet 112 and then can be discharged to again in the treatment facility.
Description to the course of work is just illustrative rather than restrictive, this is because those having ordinary skill in the art will appreciate that, for under different refrigerant mediums, different heating agent and/or different pressure conditions, the course of work all may be inconsistent with the aforesaid course of work.
The those skilled in the art of those the art can be by research specification, disclosed content and accompanying drawing and appending claims, and understanding and enforcement are to other changes of the embodiment of disclosure.In the claims, word " comprises " element and the step of not getting rid of other, and wording " one " is not got rid of plural number.In the practical application of invention, the function of a plurality of technical characterictics of quoting during a part possibility enforcement of rights requires.Any Reference numeral in the claim should not be construed as the restriction to scope.
The present invention is limited to the illustrative embodiments that presents never in any form in specification and accompanying drawing.All combinations of the embodiment that illustrates and describe (part) are interpreted as clearly to incorporate within this specification and be interpreted as clearly and fall within the scope of the present invention.And in the scope of the present invention of summarizing such as claims, a lot of distortion are possible.In addition, any reference marker in claims should be configured to limit the scope of the invention.
Claims (13)
1. heat exchanger, it is characterized in that, described heat exchanger comprises a plurality of tabular heat-exchanging parts, described heat-exchanging part comprises the container cavity of sealing, working medium import and the sender property outlet that is communicated with described container cavity fluid, wherein, the working medium import of described heat-exchanging part is used for flowing into the first phase fluid, the second phase flow that the sender property outlet of described heat-exchanging part is used for described the first phase fluid is become through heat exchange goes out, wherein, described container cavity is divided into the sub-container cavity of a plurality of fluid communication with each other.
2. heat exchanger according to claim 1 is characterized in that, described heat-exchanging part is made by the following method:
Two essentially identical metallic plates are clamped together aligned with each otherly, and wherein, described two metallic plates have the zone line within neighboring area and the neighboring area;
At described zone line, the many places of described two metallic plates are by spot welding;
In described neighboring area, described two metallic plates are by the welding of rolling continuously and reserve described working medium import and sender property outlet;
Block one of them person of described working medium import and described sender property outlet, thereby in described metallic plate, be blown into high-pressure fluid so that the metallic plate deformation that is not welded together forms described a plurality of sub-container cavity that communicates with each other.
3. heat exchanger according to claim 2 is characterized in that, described metallic plate is corrosion resistant plate or carbon steel.
4. heat exchanger according to claim 2 is characterized in that, described high-pressure fluid is water under high pressure or gases at high pressure.
5. each described heat exchanger is characterized in that according to claim 1-4, and described heat exchanger is condenser, and described the first phase fluid is gaseous fluid, and described the second phase fluid is fluid liquid.
6. each described heat exchanger is characterized in that according to claim 1-4, and described heat exchanger is evaporimeter, and described the first phase fluid is fluid liquid, and described the second phase fluid is gaseous fluid.
7. heat exchanger according to claim 6 is characterized in that, described heat exchanger also comprises:
Feed tube is connected with a plurality of arms on it, described a plurality of arms respectively fluid are communicated to the working medium import of described a plurality of heat-exchanging parts;
Discharge is connected with a plurality of arms on it, described a plurality of arms respectively fluid are communicated to the sender property outlet of described a plurality of heat-exchanging parts.
8. heat exchanger according to claim 7 is characterized in that, described heat-exchanging part also comprises the lubricating oil outlet that is communicated with described container cavity fluid, and described lubricating oil outlet is disposed in the bottom of described heat-exchanging part; Described heat exchanger also comprises oil collecting pipe, and described oil collecting pipe is connected with a plurality of arms, and described a plurality of arms respectively fluid are communicated to the lubricating oil outlet of described a plurality of heat-exchanging parts.
9. the vaporising device of a compression-type refrigerating system, it comprises at least:
Heat-exchanger tank, contain heating agent in it;
Heat exchanger, it is such as claim 6-8 as described in each, described heat exchanger is immersed in the heating agent in the described heat-exchanger tank at least in part, and the working medium inlet fluid of described heat-exchanging part is communicated to air throttle, and the sender property outlet fluid of described heat-exchanging part is communicated to compressor;
By this, the described fluid liquid that flow into described container cavity from the working medium import of described heat-exchanging part absorbs heat from described heating agent.
10. vaporising device according to claim 9 is characterized in that, described heating agent is the salt solution more than-35 degrees centigrade, and described liquid fluid is liquid ammonia.
11. according to claim 9 or 10 described vaporising devices, it is characterized in that described vaporising device also comprises agitator, it is arranged in the described heat-exchanger tank, is used for stirring described heating agent.
12. according to claim 9 or 10 described vaporising devices, it is characterized in that described vaporising device also comprises deflector, it is substantially curved and be arranged in the bight of described heat-exchanger tank so that the peripheral wall transition in itself and described bight.
13. the manufacture method for the heat-exchanging part of the evaporimeter of compression-type refrigerating system, it comprises:
Two essentially identical metallic plates are clamped together aligned with each otherly, and wherein, described two metallic plates have the zone line within neighboring area and the neighboring area;
At described zone line, the many places of described two metallic plates are by spot welding;
In described neighboring area, described two metallic plates are by the welding of rolling continuously and reserve working medium import and sender property outlet;
Block one of them person of described working medium import and described sender property outlet, thereby in described metallic plate, be blown into high-pressure fluid so that the metallic plate deformation that is not welded together forms a plurality of sub-container cavities that communicate with each other.
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| CN2013101199431A CN103353191A (en) | 2013-04-08 | 2013-04-08 | Heat exchanger, evaporator and manufacturing method of heat exchange components |
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| CN2013101199431A CN103353191A (en) | 2013-04-08 | 2013-04-08 | Heat exchanger, evaporator and manufacturing method of heat exchange components |
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Owner name: ZHEJIANG WANXIANG TECHNOLOGY CO., LTD. Effective date: 20131022 |
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Effective date of registration: 20131022 Address after: 200070, room 512, building A, 638 Hengfeng Road, Shanghai, Zhabei District Applicant after: Shanghai Wanxiang Refrigeration Equipment Co., Ltd. Applicant after: Zhejiang Wanxiang Technology Co., Ltd. Address before: 200070, room 512, building A, 638 Hengfeng Road, Shanghai, Zhabei District Applicant before: Shanghai Wanxiang Refrigeration Equipment Co., Ltd. |
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Application publication date: 20131016 |