CN205619783U - Plate type condenser - Google Patents

Abstract

The utility model discloses a plate type condenser, including preceding pressure strip, back pressure strip and middle heat exchange module, preceding pressure strip is installed respectively in middle heat exchange module's both sides with the back pressure strip, middle heat exchange module is provided with cooling water runner and steam flow channel. The beneficial effects of the utility model are that: and time liquid, get rid of the condensate, effectively reduce the condensate thickness of liquid film, reduce the condensing heat transfer thermal resistance, effectively improve plate type condenser's heat transfer effect, no moving part, operational failure is rateed for a short time, and the reliability is high, keep conventional plate heat exchanger's infrastructure characteristic, inherited the advantage that conventional plate heat exchanger compactedness is good, the area occupied is little, coefficient of heat transfer is high, the flexibility is used in the equipment, adopt and divide journey refrigerated thought, to the change rule of condensation heat transfer process temperature curve, divide the journey to dispose cooling fluid's temperature and flow for the temperature relation of matcing is more reasonable, effectively reduces the difference in temperature of conducting heat, reduces heat exchanger (img file='DDA0000790508000000011. TIF'wi='64'he='75' /) loss.

Description

A kind of plate-type condenser

[technical field]

The present invention relates to condenser field, especially a kind of reinforced transformation heat transfer, can be used for the plate of steam condensation Formula condenser.

[background technology]

Plate type heat exchanger be to be overlapped mutually by a series of sheet metals with corrugated surface parallel to each other and Becoming, the space between plate and plate forms the passage of heat exchanging fluid, and fluid is conducted heat by plate, unit bodies Long-pending effective heat transfer area is relatively big, has compact conformation, the coefficient of heat transfer is high, it is flexible, easy to use etc. excellent to assemble Point.Plate type heat exchanger is widely used in the industries such as medicine, food and shipbuilding." liquid-liquid in above-mentioned industry Body " between heat exchange situation more, the advantage of plate type heat exchanger is the most obvious.For phase-change heat-exchange occasion, as Refrigeration air-conditioner, heat pump and chemical industry, special plate-type evaporator and plate-type condenser are less.By existing It is poor that plate type heat exchanger is applied to the effect that these phase-change heat-exchange occasions (such as vaporizer and condenser) produce.

Vaporizer in phase-change heat-exchange occasion, APV company of Britain develops relevant plate evaporation specially Device, it uses falling film evaporation principle, it is possible to preferably strengthening plate-type evaporator heat-transfer effect.And for board-like cold Condenser, is only to increase steam side on the basis of traditional " liquid-liquid " plate-type heat exchanger in existing application Aperture and plate face corrugation pitch, to reach preferably to reduce the effect of fluid-pressure drop, but heat-transfer effect improve The most notable.

Plate-type condenser is to be taken away by the heat in steam or gas, thus is converted into the board-like heat of liquid Switch.Utilizing the passage that sheet metal is formed, steam and cooling medium arranged crosswise, two fluids is led to Cross metallic plate to conduct heat.In most industry application scenario, steam condenses the cold of formation on low temperature wall Lime set is referred to as film condensation in wall upper berth generated liquid film, this condensation.Condense liberated heat must wear Crossing liquid film, and the thermal conductivity of condensed fluid is relatively low, liquid film becomes the dominant thermal resistance of condensation heat transfer.Therefore, strengthening Condensation heat transfer it is crucial that the thickness of thinning liquid film.

The Chinese patent application of Publication No. CN104154769A is open " for automatically removing the board-like cold of liquid function Condenser " a kind of plate-type condenser automatically removing liquid function utilizing scraping fluid plate structure is proposed, in this structural theory Can reach automatically except the function of liquid.But this structure complexity is difficult to processing, is easily out of order with moving component, And the most not there is in structure the advantage of traditional plate type heat exchanger so that it is application is by bigger restriction.

[summary of the invention]

It is an object of the invention to overcome above-mentioned existing plate type heat exchanger can not get rid of condensed fluid in time and cause plate Formula condenser cooling energy recovery is relatively low waits deficiency, proposes a plate-type condenser, in time will by liquid separation structure Condensed fluid is got rid of, and effectively reduces the liquid film thermal resistance of plate-type condenser, thus improves the coefficient of heat transfer；Meanwhile, should Structure can realize point Cheng Lengning of condensation process, it is possible to achieve the segmentation condensation of condensation process, reduces heat transfer The temperature difference, reduces heat exchanger loss.

To achieve these goals, the present invention is achieved in that plate-type condenser, including front pressure strip, after Pressure strip and intermediate heat transfer module, described front pressure strip and rear pressure strip are respectively arranged in intermediate heat transfer module Both sides；Described intermediate heat transfer module is provided with cooling water heat exchange runner and steam heat-exchanging runner.

Described intermediate heat transfer module is staggeredly stacked successively by some first heat transfer plates and the second heat transfer plate and forms, in institute Stating and arrange the first sealing gasket and the second sealing gasket between the first heat transfer plate and the second heat transfer plate, described first seals Pad and the second sealing gasket are crisscross arranged successively between described first heat transfer plate and the second heat transfer plate.

Described first heat transfer plate is provided with steam inlet corner apertures, condensate outlet corner apertures, aerofluxus corner apertures, separatory Corner apertures, the first journey cooling water inlet corner apertures, the first journey coolant outlet corner apertures, the second journey cooling water inlet angle Hole and the second journey coolant outlet corner apertures；Described second heat transfer plate is provided with steam inlet corner apertures, condensed fluid goes out Bicker hole, separatory corner apertures, the first journey cooling water inlet corner apertures, the first journey coolant outlet corner apertures, the second journey Cooling water inlet corner apertures and the second journey coolant outlet corner apertures.When described first heat transfer plate and the second heat transfer sheetpile Time folded, described steam inlet corner apertures, condensate outlet corner apertures, separatory corner apertures, the first journey cooling water inlet angle Hole, the first journey coolant outlet corner apertures, the second journey cooling water inlet corner apertures and the second journey coolant outlet corner apertures Form the first journey cooling water heat exchange runner in correspondence is arranged on intermediate heat transfer module respectively, the second journey cooling water changes Hot flow path and steam heat-exchanging runner.

Arrange steam inlet on described front pressure strip, middle leakage fluid dram, condensator outlet, the first journey cooling water enter Mouth, ground floor coolant outlet, the second journey cooling water inlet and the second journey coolant outlet；Described steam enters Mouth is connected with described steam inlet corner apertures, and described middle leakage fluid dram is connected with separatory corner apertures, and described condenser goes out Mouth is connected with condensate outlet corner apertures, and the first journey cooling water inlet is connected with the first journey cooling water inlet corner apertures, Described ground floor coolant outlet and the first journey coolant outlet corner apertures connect, described second journey cooling water inlet It is connected with the second journey cooling water inlet corner apertures, described second journey coolant outlet and the second journey coolant outlet angle Hole connects.

The present invention solves the problem that conventional plate type heat exchanger film condensation cannot be got rid of in time, thus overcomes board-like Condenser condensation heat transfer thermal resistance is compared with the deficiency such as big, heat-transfer effect is undesirable；Solve condensing heat-exchange Temperature Matching Problem, it is possible to achieve the segmentation condensation of specific operation, the process such as supercool in steam pre-cooling, condensed fluid, more Reasonably regulation Temperature Matching relation, reduces heat transfer temperature difference, reduces the loss of heat exchanger；Solve existing plate The problem that formula separatory condenser structure is complicated, upper increase liquid separation structure, while improving condensation heat transfer effect, Still it is excellent to have that conventional plate type heat exchanger compactedness is good, area occupied is little, heat transfer coefficient is high, assembling is flexible etc. Point.

Compared with prior art, the invention has the beneficial effects as follows: separatory in time, get rid of condensed fluid, effectively drop Low condensed fluid thickness of liquid film, reduces condensation heat transfer thermal resistance, is effectively improved the heat transfer effect of plate-type condenser；Nothing Moving component, operation troubles rate is little, and reliability is high；Maintain the basic structure of conventional plate type heat exchanger, continue Held that conventional plate type heat exchanger compactedness is good, area occupied is little, heat transfer coefficient is high, assemble use the most excellent Point, compare with other plate-type condenser patents for, more have significant practical applications；Use a point think of for journey cooling Think, just the Changing Pattern to condensing heat-exchange process temperature curve, point journey configuration cooling fluid so that temperature Relation of joining is more reasonable, effectively reduces heat transfer temperature difference, reduces heat exchanger available energy loss.

[accompanying drawing explanation]

Fig. 1 is plate-type condenser solid installation diagram structural representation of the present invention；

Fig. 2 is the main TV structure schematic diagram of the first sealing gasket in the present invention；

Fig. 3 is the main TV structure schematic diagram of the second sealing gasket in the present invention；

Fig. 4 is the main TV structure schematic diagram of the first heat transfer plate in the present invention；

Fig. 5 is the backsight structural representation of the first heat transfer plate in the present invention；

Fig. 6 is the main TV structure schematic diagram of the second heat transfer plate in the present invention；

Fig. 7 is the backsight structural representation of the second heat transfer plate in the present invention；

Fig. 8 is fluid course schematic diagram of the present invention；

Fig. 9 is steam heat-exchanging runner schematic diagram of the present invention；

Figure 10 is present invention runner schematic diagram when cooling down.

[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, as shown in figs. 1-7, it includes that front pressure strip 1, rear pressure strip 2 and centre are changed Thermal modules, described front pressure strip and rear pressure strip are respectively arranged in the both sides of intermediate heat transfer module；Described centre Heat exchange module is provided with cooling water heat exchange runner and steam heat-exchanging runner.Described intermediate heat transfer module is by some One heat transfer plate 3 and the second heat transfer plate 4 are staggeredly stacked composition successively, pass at described first heat transfer plate 3 and second Arranging the first sealing gasket 5 and the second sealing gasket 6 between hot plate 4, described first sealing gasket 5 and second seals Pad 6 is crisscross arranged between described first heat transfer plate 3 and the second heat transfer plate 5, successively at the first heat transfer plate 3 And between the second heat transfer plate 4, form cold flow body space and hot fluid space, and cold flow body space and adjacent heat Fluid space is separated by by the first heat transfer plate 3 or the second heat transfer plate 4, can effectively conduct heat.

Described intermediate heat transfer module is depended on 4 two kinds of heat transfer plates of the second heat transfer plate by some described first heat transfer plates 3 Secondary in staggered stack composition.As shown in figs. 4-7, the first heat transfer plate 3 is provided with for inputting heat The steam inlet corner apertures 14 of steam, for discharge the condensate outlet corner apertures 17 of condensed fluid, aerofluxus corner apertures 15, Separatory corner apertures the 16, first journey cooling water inlet corner apertures the 18, first journey coolant outlet corner apertures the 19, second journey Cooling water inlet corner apertures the 20, second journey coolant outlet corner apertures 21；Second heat transfer plate 4 is provided with steam and enters Bicker hole 14, condensate outlet corner apertures 17, separatory corner apertures the 15, first journey cooling water inlet corner apertures 18, One journey coolant outlet corner apertures the 19, second journey cooling water inlet corner apertures the 20, second journey coolant outlet corner apertures 21.First heat transfer plate 3 with the difference of the second heat transfer plate 4 is, the first heat transfer plate 3 is at the second heat transfer plate 4 On the basis of add aerofluxus corner apertures 15.When 4 two kinds of heat transfer plates of described first heat transfer plate 3 and the second heat transfer plate depend on Secondary in staggered stack time, shown first heat transfer plate 3 and the second corresponding steam inlet of heat transfer plate 4 Corner apertures 14, condensate outlet corner apertures 17, separatory corner apertures the 15, first journey cooling water inlet corner apertures 18, first Journey coolant outlet corner apertures the 19, second journey cooling water inlet corner apertures the 20, second journey coolant outlet corner apertures 21 Connect with corresponding cold flow body space and hot fluid space Deng staggered, the first heat transfer plate 3 adds aerofluxus Corner apertures 15 communicates with hot fluid space.

Wherein, the size of steam inlet corner apertures 14 should determine according to factors such as steam kind, flow, flow velocitys, Ordinarily be about 3～10 times of cooling water corner apertures sectional area, preferably for the 5～6 of cooling water corner apertures sectional area Times；Middle aerofluxus corner apertures 15 is arranged on the surface of separatory corner apertures, shape can use rectangle, circle, Trapezoidal wait various shape, it is simple to steam passes through and beneficially fluid flowing between plate；Separatory interface in the middle of heat exchanger Outer regulation valve is set, prevents steam from being gone out by separatory angular flux, it is to avoid steam leaks.

It is provided with concave-convex ripple with augmentation of heat transfer in the heat exchange area of the first heat transfer plate 3 and the second heat transfer plate 4. First heat transfer plate 3 and the second heat transfer plate 4 use the preferable metal material of thermal conductivity to make.Every first heat transfer Plate 3 and the second heat transfer plate 4 can be divided into upper and lower two regions, all first heat transfer plate 3 and the second heat transfer plates The region, upper and lower of 4 separately constitutes a flow process, and the first heat transfer plate 3 and the second heat transfer plate 4 are in flow process Interior effective heat transfer area should calculate according to actual separatory effect and determine.

Between the first heat transfer plate 3 and the second heat transfer plate 4, arrange the sealing gasket of two kinds of specifications, be first respectively Sealing gasket 5 and the second sealing gasket 6, the first sealing gasket 5 and the second sealing gasket 6 are interspersed successively first Between heat transfer plate 3 and the second heat transfer plate 4, the first heat transfer plate 3 and the second heat transfer plate 4 are two fluids Distribute different flow regions.Meanwhile, sealing gasket also act as prevent fluid from leaking outside, internal hemorrhage due to trauma between two fluids Effect.First sealing gasket 5 and the second sealing gasket 6 use good rubber high temperature resistant, high pressure resistant, elastic Material is made.

Steam inlet 7, middle leakage fluid dram 8, condensator outlet the 9, first journey are set on described front pressure strip 1 Cooling water inlet 10, ground floor coolant outlet the 11, second journey cooling water inlet 12 and the second journey cooling water Outlet 13.Above-mentioned interface is connected with corresponding cold flow body space and hot fluid space, forms recuperated cycle.Described Corresponding cold flow body space and heat is formed by the first sealing gasket 5 between front pressure strip 1 with the first heat transfer plate 3 Fluid space, rear pressure strip 2 and the first heat transfer plate 3 or the second heat transfer plate 4 by the first sealing gasket 5 or Second sealing gasket 6 forms corresponding cold flow body space and hot fluid space.The connection of some hot fluid spaces is for steaming Vapour heat exchange runner, each hot fluid space is exactly a heat exchange tube side；The connection of some cold flow body spaces is cooling Water heat exchange runner, each cold flow body space is exactly a heat exchange process.

The operation principle of the present invention is as follows:

As shown in Figure 8 and Figure 9, operationally, steam is entered heat exchanger by steam inlet 7 to heat exchanger, first First enter first pass steam along the steam heat-exchanging runner between the first heat transfer plate 3 and the second heat transfer plate 4 to lead to Road, by the cooling water cooling of first pass.Condensed fluid and steam that some vapor condenses into together flow downward, Condensed fluid is discharged by the discharge opeing corner apertures being arranged on low level；The steam not condensed is by the row on the first heat transfer plate Air horn hole enters the steam channel of second procedure, is continued cooling by the cooling water of second procedure, and steam is the coldest Flowed out by condensate outlet 9 after Ning.

By reasonable disposition steam inlet corner apertures 14, aerofluxus corner apertures 15, the size of separatory corner apertures 16, permissible In time the condensed fluid that steam condenses at first pass is completely exhausted out in time.Meanwhile, can connect at middle separatory Regulation valve, the aperture of conservative control regulation valve are set outside mouthful, are allowed to produce certain flow resistance, it is to avoid steam Vapour is discharged by separatory corner apertures, causes steam to leak.

Effective heat exchange area by reasonable disposition first pass heat exchanger plates so that steam produces at first pass Condensation water control within zone of reasonableness.The effective heat exchange area of second procedure should be slightly larger than making steam just The heat exchange area needed when all condensing into saturated liquid, thus ensure that the steam entering into second procedure is complete It is condensed into liquid.

As shown in Figure 10, two flow processs use two strands of cooling water to cool down respectively.By regulation cooling water Inlet temperature and flow, thus realize this separatory condensation process regulation control.Two strands of cooling water can make With the cooling water of different temperatures, to realize and the matched well of steam.When the steam superheating entering this heat exchanger When spending higher, according to the cooling water of lower temperature, heat transfer temperature difference is relatively big, and heat exchanger available energy loss is bigger. Now, the first pass at this heat exchanger is passed through the cooling water of suitable temperature, is ensureing good separatory effect Meanwhile, heat exchanger available energy loss is effectively reduced；In like manner, when exporting condensed fluid and needing supercool, at second The cooling water that Cheng Caiyong temperature is relatively low, foot can ensure that condensed fluid is supercool, also will not cause first pass bright Development rings.Discharge opeing in the middle of steam, the process of point Cheng Lengning can be realized by this heat exchanger of above structure.In Between position liquid separation structure be set get rid of condensed fluid in time, reduce condensation water thickness of liquid film, be effectively improved heat exchange Coefficient.Employing multipaths is arranged, point Cheng Lengning, it is ensured that while condensation effect, beneficially condensation process is cold The coupling of hot fluid temperature, reduces heat transfer temperature difference, reduces heat exchanger available energy loss.

The preferred embodiment of the present invention described in detail above, it will be appreciated that the ordinary skill of this area Just many modifications and variations can be made according to the design of the present invention without creative work.Therefore, all skill In art field, technical staff passes through logical analysis, reasoning or root according to present inventive concept on the basis of prior art According to the limited available technical scheme of experiment, all should be by protecting model determined by the claims Among enclosing.

Claims (2)

1. plate-type condenser, it is characterised in that include that front pressure strip (1), rear pressure strip (2) and intermediate heat transfer module, described front pressure strip (1) and rear pressure strip (2) are respectively arranged in the both sides of intermediate heat transfer module；Described intermediate heat transfer module is provided with cooling water heat exchange runner and steam heat exchange runner；Described intermediate heat transfer module is staggeredly stacked successively is formed by some first heat transfer plate (3) and the second heat transfer plate (4), arranging the first sealing gasket (5) and the second sealing gasket (6) between described first heat transfer plate (3) and the second heat transfer plate (4), described first sealing gasket (5) and the second sealing gasket (6) are crisscross arranged successively between described first heat transfer plate (3) and the second heat transfer plate (4)；Described first heat transfer plate (3) is provided with steam inlet corner apertures (14), condensate outlet corner apertures (17), aerofluxus corner apertures (15), separatory corner apertures (16), the first journey cooling water inlet corner apertures (18), the first journey coolant outlet corner apertures (19), the second journey cooling water inlet corner apertures (20) and the second journey coolant outlet corner apertures (21)；Described second heat transfer plate (4) is provided with steam inlet corner apertures (14), condensate outlet corner apertures (17), separatory corner apertures (15), the first journey cooling water inlet corner apertures (18), the first journey coolant outlet corner apertures (19), the second journey cooling water inlet corner apertures (20) and the second journey coolant outlet corner apertures (21)；When described first heat transfer plate (3) stacks with the second heat transfer plate (4), described steam inlet corner apertures (14), condensate outlet corner apertures (17), separatory corner apertures (16), the first journey cooling water inlet corner apertures (18), the first journey coolant outlet corner apertures (19), the second journey cooling water inlet corner apertures (20) and the second journey coolant outlet corner apertures (21) correspondence respectively form the first journey cooling water heat exchange runner, the second journey cooling water heat exchange runner and steam heat-exchanging runner in being arranged on intermediate heat transfer module.

2. according to the plate-type condenser described in claim 1, it is characterized in that, described front pressure strip (1) arranges steam inlet (7), middle leakage fluid dram (8), condensator outlet (9), the first journey cooling water inlet (10), ground floor coolant outlet (11), the second journey cooling water inlet (12) and the second journey coolant outlet (13)；Described steam inlet (7) is connected with described steam inlet corner apertures (14), described middle leakage fluid dram (8) is connected with separatory corner apertures (16), described condensator outlet (9) is connected with condensate outlet corner apertures (17), first journey cooling water inlet (10) is connected with the first journey cooling water inlet corner apertures (18), described ground floor coolant outlet (11) is connected with the first journey coolant outlet corner apertures (19), described second journey cooling water inlet (12) is connected with the second journey cooling water inlet corner apertures (20), described second journey coolant outlet (13) is connected with the second journey coolant outlet corner apertures (21).