CN105716440A - Plate type condenser with gas-liquid separation function - Google Patents
Plate type condenser with gas-liquid separation function Download PDFInfo
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- CN105716440A CN105716440A CN201510970125.1A CN201510970125A CN105716440A CN 105716440 A CN105716440 A CN 105716440A CN 201510970125 A CN201510970125 A CN 201510970125A CN 105716440 A CN105716440 A CN 105716440A
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- heat exchange
- gas
- plate
- refrigerant
- exchange plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a plate type condenser with a gas-liquid separation function. The plate type condenser comprises a plurality of heat exchange plates and trough type headers, wherein the plurality of heat exchange plates are stacked by virtue of sealing gaskets, refrigerant spaces and cooling water spaces are formed between adjacent heat exchange plates, corner pores which are used for uniformly distributing refrigerant or cooling water are formed in the heat exchange plates, the heat exchange plates vertically penetrate through at least one trough type header, refrigerant channels are formed in the trough type headers 4, and the refrigerant channels are divided into gas refrigerant channels and liquid refrigerant channels by the heat exchange plates. The plate type condenser has the beneficial effects that gas-liquid separation can be realized in the process of condensation heat exchange, so that heat exchange between gas refrigerant and liquid refrigerant in different channels can be realized, the condensation heat exchange effect is increased, the supercooling degree of the refrigerant is increased, the whole design is reasonable and reliable, and a high engineering value is achieved.
Description
[technical field]
The present invention relates to condenser field, especially a kind of reinforced transformation heat transfer, can be used for the plate-type condenser with gas-liquid separating function of steam condensation.
[background technology]
Plate type heat exchanger is a kind of novel high-performance heat exchanger, and it has an advantage such as heat exchange efficiency height, little, the advantages of compact and light structure of heat loss, thus is widely used in refrigeration, chemical industry, the industry such as electrically and mechanically.But in the pipe of plate type heat exchanger in vapour condensation heat transfer process, the condensing liquid quantity in heat exchanger tube increases gradually, condensate film progressive additive, it will considerably increasing heat exchange thermal resistance, condensation heat transfer effect sharply worsens.This phenomenon is commonplace, makes condensed fluid increase gradually in the passage that plate is formed, has a strong impact on heat transfer effect.It is therefore desirable to the mechanism of existing plate type heat exchanger is improved.
[summary of the invention]
It is an object of the invention to the deficiency overcoming above-mentioned existing plate type heat exchanger to exist, it is proposed to a kind of overall structure is reliable, is effectively improved the plate-type condenser with gas-liquid separating function of the degree of supercooling of heat transfer effect and cold-producing medium.
To achieve these goals, the present invention is achieved in that a kind of plate-type condenser with gas-liquid separating function, including heat exchange plate and grooved header, it is stacked by seal gasket between some heat exchange plates, adjacent heat exchange plate is formed cryogen and cooling water space, the corner apertures dividing equally cold-producing medium or cooling water it is arranged at heat exchange plate, described heat exchange plate is connected in minimum of one grooved header vertically, the refrigerant tubing arranged in described grooved header, coolant channel will be divided into gas refrigerant passage and liquid refrigerant passage by described heat exchange plate.
Described grooved header is connected with the side of air communicating pipe, and the opposite side of described air communicating pipe is connected with the corner apertures of the heat exchange plate of downstream, forms the gas refrigerant import of downstream heat exchange plate.Described air communicating pipe is bend pipe structure.
The side of described grooved header connects the side of fluid connection pipe, and the opposite side of described fluid connection pipe connects the corner apertures (liquid refrigerant import) of the heat exchange plate of downstream.Described fluid connection pipe is bend pipe structure.
Described fluid connection pipe is provided with the circular bulkheads with several small sircle holes.
The diameter of described circular bulkheads is identical with the internal diameter of fluid connection pipe, the small through hole that aperture is diameter 1mm on circular bulkheads, and condensed fluid can be flowed away by aperture, and forms liquid film obstruction gas refrigerant traverse aperture.
The present invention utilizes the gas-liquid density contrast of working medium to realize gas-liquid separating function, by grooved header, plate type heat exchanger is divided into some flow processs, heat exchange plate is inserted in header, header is also connected to fluid connection pipe and air communicating pipe, by rationally arranging the difference in height of air communicating pipe and fluid connection pipe import and arranging porous barrier in fluid connection pipe and realize gas-liquid separation.Owing to gas-liquid two-phase exists density contrast, after two phase refrigerant enters this large space of header, gas phase and liquid phase refrigerant can be easily separated, owing to liquid is affected by gravity relatively larger, gas can flow into the higher air communicating pipe import in position, and liquid phase flows into position fluid connection pipe through-hole bottom header, the porous separatory dividing plate in fluid connection pipe also can stop gas to enter fluid connection pipe thus realizing gas-liquid separating function simultaneously.Cold-producing medium realizes separating of gas and liquid in heat exchanger flow process, and gas refrigerant carries out heat exchange by entering different fluid passages after separating from liquid refrigerant.Gas refrigerant continues condensing heat-exchange in corresponding passage, due to the raising of mass dryness fraction, enhances condensation effect: it is supercool that liquid then continues heat exchange, improves degree of supercooling.Utilize the reasonable combination of grooved header, heat exchange plate, air communicating pipe, fluid connection pipe, simple for structure, there is the function of gas-liquid separation, improve condensing heat-exchange effect, improve the degree of supercooling of cold-producing medium simultaneously.
Compared with prior art, the invention has the beneficial effects as follows: gas-liquid separation can be realized in condensing heat-exchange process, gas refrigerant is made to carry out heat exchange in different runners from liquid refrigerant, not only increase condensing heat-exchange effect, also improve the degree of supercooling of cold-producing medium, whole reasonable in design reliably, there is higher construction value.
[accompanying drawing explanation]
Fig. 1 is the perspective view that the present invention has the plate-type condenser of gas-liquid separating function；
Fig. 2 is the partial structurtes schematic diagram that the present invention has the plate-type condenser of gas-liquid separating function；
Fig. 3 is the structural representation of circular bulkheads；
Fig. 4-6 is the structural representation of heat exchange plate；
Fig. 7 is the heat exchange plate assembly structure figure that the present invention has in the plate-type condenser of gas-liquid separating function；
Fig. 8 is that fluid has flow process schematic diagram in the plate-type condenser of gas-liquid separating function in the present invention.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail explanation.
A kind of plate-type condenser with gas-liquid separating function, as Figure 1-3, it is made up of parts such as including refrigerant inlet 1, heat exchange plate 2, seal gasket 3, grooved header 4, cooling water inlet 5, refrigerant outlet 6, air communicating pipe 7, coolant outlet 8 and fluid connection pipe 9 and forms, it is stacked by seal gasket 3 between some heat exchange plates 2, adjacent heat exchange plate 2 is formed cryogen B and cooling water space A.Described grooved header 4 has the mounting groove installing described heat exchange plate 2.Plane width in the width ratio grooved header 4 of described heat exchange plate 2 wants little about 4mm, installs the easiest, and described heat exchange plate 2 is vertically through in grooved header 4.Described heat exchange plate 2 has corner apertures on location, it is possible to for connecting adjacent cryogen B or and cooling water space A.Described seal gasket 3 is pasted onto on heat exchange plate 2, and it act as and is separated with cooling moisture and play the effect of sealing by cold-producing medium.Described grooved header 4 can be arranged several from top to bottom abreast, it is preferable that 2, or the multiple of 2, and the effect of described grooved header 4 is to allow cold-producing medium have enough spaces to carry out gas-liquid separation.Described heat exchange plate 2 is that a monoblock is in several grooved headers 4, owing to cold-producing medium flows into after grooved header 4 not by heat exchange plate 2 flow down always, but it is introduced in grooved header 4, then passing through what the refrigerant tubing arranged in described grooved header 4 side flowed away, therefore refrigerant flow path is divided into some flow processs.Described cryogen B inserts grooved header 4 by air communicating pipe 7, is imported in described grooved header 4 by the cold-producing medium of gasification.Described heat exchange plate 2 passes vertically through among grooved header 4, and the adjacent tight closed assembly of heat exchange plate 2 forms thin heat transfer fluid channels, and the passage of cold-producing medium and cooling water is spaced apart.Owing to heat exchanger has gas-liquid separating function, from second procedure, heat exchange plate 2 coolant channel formed will be divided into gas refrigerant passage and liquid refrigerant passage.The side of described air communicating pipe 7 is connected with grooved header 4, and opposite side is connected with the corner apertures of the heat exchange plate 2 of downstream, forms the gas refrigerant import of downstream heat exchange plate 2.Air communicating pipe 7 inserts grooved header 4, and the position of the import lower plane from grooved header 4 has certain height, and distance is about 10mm, can prevent the inflow of liquid refrigerant.The grooved header 4 of each flow process is connected to a fluid connection pipe 9, and fluid connection pipe 9 one end is connected to grooved header 4, and the other end is connected to the corner apertures of the heat exchange plate 2 of downstream.As in figure 2 it is shown, the entry position of fluid connection pipe 9 side that is connected to grooved header 4 is consistent with level.Described fluid connection pipe 9 can be provided with small baffle with holes at ad-hoc location, as shown in Figure 3, described apertured partition is the circular bulkheads having several small sircle holes on a surface, the diameter of circular bulkheads is identical with the internal diameter of fluid connection pipe 9, aperture on circular bulkheads is the small through hole of diameter 1mm, circular bulkheads act as leakage choke, namely condensed fluid can be flowed away by aperture, and form liquid film and hinder gas refrigerant through aperture.Described apertured partition can be made up of three circular bulkheads being stacked, and the adjacent direct distance of circular bulkheads is 1-3cm.
As shown in figs. 4-7, there are gas refrigerant passage, liquid refrigerant passage and cooling-water duct in the fluid passage formed due to heat exchange plate 2, it is therefore desirable to rationally arrange the seal gasket 3 on heat exchange plate.List the seal gasket form of three flow heat exchangers herein.Shown in Fig. 4 is the form of cooling-water duct, shown in Fig. 5 is that same plate is all the form of gas refrigerant passage three flow processs, shown in Fig. 6 be same plate is gas refrigerant in the first and second flow processs, and the 3rd flow process is the form of liquid refrigerant passage.Owing to cooling-water duct is that cooling water is at the end directed along heat exchange plate 2 stream, and heat exchange plate 2 inserts the part in grooved header 4 and is also required to arrange seal gasket 3 without separating into some flow processs.Coolant channel is divided into some flow processs, and cold-producing medium is not be at the end along heat exchange plate 2 stream, and therefore the heat exchange plate 2 of coolant channel inserts the part in grooved header 4 is be not provided with seal gasket 3, and cold-producing medium so can be made to flow in grooved header 4.Gas refrigerant passage and liquid refrigerant passage can be divided in the second procedure of heat exchanger owing to forming a series of coolant channel between heat exchange plate 2, so have part heat exchange plate 2 second or the 3rd flow process begin with liquid refrigerant passage, the setting of its seal gasket 3 is also different.Shown in Fig. 5 and Fig. 6 second and the third sheet form are that form and the 3rd flow process for gas refrigerant passage is liquid refrigerant channel form entirely respectively.
Grooved header 4 planar side has rectangular opening, and grooved header about 4 two side plane of the cooling-water duct correspondence position formed between two pieces of heat exchange plates 2 has perforate.And the coolant channel correspondence position formed between two pieces of heat exchange plates 2 only has plane perforate on grooved header 4, lower plane not perforate.
Operation principle and the workflow of the present invention are as follows:
As shown in Figure 8, gaseous refrigerant C enters the distribution passage formed by heat exchange plate 2, seal gasket 3 and corner apertures from the overhead refrigerant import 1 of first pass heat exchange plate 2, by in cold-producing medium dispensed in parallel to each heat exchange plate 2 refrigerant flow path in distribution passage, cold-producing medium flows in the runner in heat exchange plate 2 from top to bottom, and cold-producing medium is flowed among grooved header 4 by the rectangular opening of grooved header 4 upper surface afterwards.Owing to the gas of cold-producing medium exists density contrast with liquid, after cold-producing medium flows to this bigger space of grooved header 4 from heat exchange plate 2 internal channel, gas refrigerant and liquid refrigerant can separate.Owing to liquid is affected by gravity relatively larger, general liquid can drop to bottom grooved header 4, and gas is up.Cold-producing medium flows along horizontal direction in grooved header 4 in the dynamic process of air communicating pipe and fluid connection pipe flow, and heat exchange plate 2 passes vertically through grooved header 4, therefore when cold-producing medium, after flowing into grooved header 4, baffling can occur, two phase refrigerant will have certain baffle separation effect, thus improve gas-liquid separation effect.Air communicating pipe 7 inserts from grooved header 4 bottom surface, entrance location and grooved header 4 lower surface have certain distance, therefore the liquid refrigerant being deposited on grooved header 4 bottom surface cannot be walked by this pipe flow, only gas refrigerant can enter air communicating pipe 7, and the heat exchange plate 2 then flowing into downstream continues condensing heat-exchange.The downstream continuation heat exchange that liquid refrigerant then flows into heat exchange plate from the fluid connection pipe 9 of bottom is supercool.Meanwhile, the circular bulkheads of the porous arranged in fluid connection pipe 9 has also functioned to the effect of leakage choke, it is prevented that gas enters fluid connection pipe 9.Although gas refrigerant and liquid have all simultaneously entered the downstream of heat exchange plate 2, but by rationally arranging the seal washer 3 on heat exchange plate 2, the passage of gas refrigerant is what to separate with liquid refrigerant E passage.Gas and liquid refrigerant heat exchange in corresponding heat exchanger channels respectively.Finally, whole cold-producing mediums all passes through refrigerant outlet 6 and leaves heat exchanger.Owing to gas refrigerant flows into different passages from liquid refrigerant, so this structure serves the effect of gas-liquid separation.Meanwhile, in condensing heat-exchange process, gas refrigerant constantly reduces, and condensed fluid is on the increase, so the gas refrigerant passage of downstream is less than the gas passage of a upper flow process, liquid refrigerant passage is more than the liquid refrigerant passage of a upper flow process.
Cooling water D enters heat exchanger from cooling water inlet 5, then the distribution passage formed by heat exchange plate 2 and seal gasket 3 and corner apertures it is redistributed to, cooling water uniformly flows in the aquaporin of each heat exchange plate 2 in distribution passage, water flow direction between plate is from the bottom up, it is contrary with the direction of cold-producing medium, forms countercurrent flow.The flowing of cooling water is not separated into some flow processs, but enters collection channel from bottom along heat exchange plate 2 one direct current to plate top, leaves heat exchanger from the cooling water outlet 8 on plate top.
The preferred embodiment of the present invention described in detail above, it will be appreciated that the ordinary skill of this area just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art according to present inventive concept on prior art basis by logical analysis, reasoning or according to the limited available technical scheme of experiment, all should by among the determined protection domain of present claims book.
Claims (7)
1. a plate-type condenser with gas-liquid separating function, including heat exchange plate and grooved header, it is characterized in that, it is stacked by seal gasket between some heat exchange plates, adjacent heat exchange plate is formed cryogen and cooling water space, the corner apertures dividing equally cold-producing medium or cooling water it is arranged at heat exchange plate, described heat exchange plate is connected in minimum of one grooved header vertically, the refrigerant tubing arranged in described grooved header, coolant channel is divided into gas refrigerant passage and liquid refrigerant passage by described heat exchange plate.
2. a kind of plate-type condenser with gas-liquid separating function described in claim 1, it is characterized in that, described grooved header is connected with the side of air communicating pipe, the opposite side of described air communicating pipe is connected with the corner apertures of the heat exchange plate of downstream, forms the gas refrigerant import of downstream heat exchange plate.
3. a kind of plate-type condenser with gas-liquid separating function described in claim 2, it is characterised in that described air communicating pipe is bend pipe structure.
4. a kind of plate-type condenser with gas-liquid separating function described in claim 1, it is characterised in that the side of described grooved header connects the side of fluid connection pipe, the opposite side of described fluid connection pipe connects the corner apertures of the heat exchange plate of downstream.
5. a kind of plate-type condenser with gas-liquid separating function described in claim 1, it is characterised in that described fluid connection pipe is bend pipe structure.
6. a kind of plate-type condenser with gas-liquid separating function described in claim 4 or 5, it is characterised in that described fluid connection pipe is provided with the circular bulkheads with several small sircle holes.
7. a kind of plate-type condenser with gas-liquid separating function described in claim 1, it is characterised in that the diameter of described circular bulkheads is identical with the internal diameter of fluid connection pipe, the small through hole that aperture is diameter 1mm on circular bulkheads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510970125.1A CN105716440B (en) | 2015-12-18 | 2015-12-18 | A kind of plate-type condenser with gas-liquid separating function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510970125.1A CN105716440B (en) | 2015-12-18 | 2015-12-18 | A kind of plate-type condenser with gas-liquid separating function |
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| CN105716440A true CN105716440A (en) | 2016-06-29 |
| CN105716440B CN105716440B (en) | 2017-08-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489307A (en) * | 2018-01-23 | 2018-09-04 | 中国科学院理化技术研究所 | plate-fin heat exchanger |
| CN110260694A (en) * | 2019-07-23 | 2019-09-20 | 李永堂 | Plate journey shunt plate heat exchanger |
| CN114259761A (en) * | 2021-12-27 | 2022-04-01 | 曲誉环境综合治理有限公司 | Sedimentation tank mud backward flow suction device and sludge sedimentation tank |
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| CN105066729A (en) * | 2015-08-27 | 2015-11-18 | 广东工业大学 | Plate-type condenser with liquid separation function |
| WO2015178005A1 (en) * | 2014-05-23 | 2015-11-26 | 株式会社デンソー | Stacked heat exchanger |
| CN205748016U (en) * | 2015-12-18 | 2016-11-30 | 广东工业大学 | Gas-liquid separation plate-type condenser |
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2015
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| JPH11287572A (en) * | 1998-03-31 | 1999-10-19 | Hisaka Works Ltd | Brazing plate type heat exchanger |
| CN101504256A (en) * | 2009-03-05 | 2009-08-12 | 清华大学 | Vapor-liquid separation method for vertical condenser and condenser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489307A (en) * | 2018-01-23 | 2018-09-04 | 中国科学院理化技术研究所 | plate-fin heat exchanger |
| CN110260694A (en) * | 2019-07-23 | 2019-09-20 | 李永堂 | Plate journey shunt plate heat exchanger |
| WO2021012936A1 (en) * | 2019-07-23 | 2021-01-28 | 李永堂 | Plate heat exchanger having flow-dividing plate path |
| CN114259761A (en) * | 2021-12-27 | 2022-04-01 | 曲誉环境综合治理有限公司 | Sedimentation tank mud backward flow suction device and sludge sedimentation tank |
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| Publication number | Publication date |
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| CN105716440B (en) | 2017-08-01 |
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Effective date of registration: 20220325 Address after: 545000 West plate of Sifang area, Xinxing Industrial Park, Liujiang District, Liuzhou City, Guangxi Zhuang Autonomous Region (plant of weipeng auto parts manufacturing company) Patentee after: Guangxi gaoermei Energy Saving Technology Co.,Ltd. Address before: 510006 No. 100 West Ring Road, Guangzhou University, Guangzhou, Guangdong, Panyu District Patentee before: GUANGDONG University OF TECHNOLOGY |
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