CN212931106U - Heat exchange plate sheet of plate heat exchanger for steam condensation - Google Patents
Heat exchange plate sheet of plate heat exchanger for steam condensation Download PDFInfo
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- CN212931106U CN212931106U CN202021482145.7U CN202021482145U CN212931106U CN 212931106 U CN212931106 U CN 212931106U CN 202021482145 U CN202021482145 U CN 202021482145U CN 212931106 U CN212931106 U CN 212931106U
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Abstract
The utility model discloses a heat exchange plate of a plate heat exchanger for steam condensation, the plate heat exchanger comprises a plurality of heat exchange plates arranged between a fixed pressure plate and a movable pressure plate in the plate heat exchanger, and the heat exchange plates are in a rectangular shape with a high length-width ratio; the four right-angle positions of the rectangular heat exchange plate are provided with angle holes, and the heat exchange plate is also provided with hanging holes; the main heat exchange area of the heat exchange plate is in a form of combining longitudinal herringbone ripples with straight ripples; the periphery of the corner hole is also provided with gear-shaped special corrugations, and adjacent corrugated plate sheets form two different flow passage sectional areas of the cold and hot channels. The utility model discloses it is more reasonable to exchange heat runner under the medium state of vapour-liquid condensation, has avoided steam and the unmatched condition of water velocity of each other to take place. Thereby greatly reducing the operating cost of the heat exchanger and being convenient for installation and maintenance.
Description
Technical Field
The utility model relates to a plate heat exchanger in fields such as steam power plant, chemical industry, more specifically say, relate to a plate heat exchanger's that steam condensation used heat transfer slab.
Background
The plate heat exchanger is a high-efficiency heat exchanger formed by laminating plates which are formed by pressing metal sheets into various corrugated shapes through an oil press. The corrugations of the sheet form various flow channels in which media flows and exchanges heat through the thermal conductivity of the metal sheet. Compared with the traditional shell-and-tube heat exchanger, the plate heat exchanger has the advantages of high heat transfer coefficient, low manufacturing cost, small occupied area and convenient maintenance, thereby being widely applied in more and more fields.
The plate heat exchanger as a cold and heat exchange device has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenience in installation and cleaning, wide application, long service life and the like. Under the condition of the same pressure loss, the heat transfer coefficient of the heat exchanger is 3-5 times higher than that of a tubular heat exchanger, the occupied area of the heat exchanger is one third of that of the tubular heat exchanger, and the heat recovery rate can reach more than 90 percent. The plate heat exchanger is widely applied to industries such as power plants, petroleum, chemical engineering, food, pharmacy, ships, textile, papermaking and the like, and is excellent equipment for heating evaporation, cooling condensation, waste heat recovery and the like.
The working condition of steam condensation is often encountered in the fields of thermal power plants, chemical engineering and the like, and because the hot side is steam and the cold side is water, the situation that the flow rates of media at the cold side and the hot side are not matched easily occurs by using the traditional corrugated shape, or the flow rate of water is reasonable and the flow rate of the steam side is faster; the steam side flow rate is reasonable, and the water side flow rate is slow. Thereby having adopted behind the dedicated heat transfer plate of steam condensation to make both sides velocity of flow phase-match improve the heat transfer effect for heat transfer area is more reasonable, reduces the running cost.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that exists among the prior art, the utility model aims at providing a dedicated plate heat exchanger's of steam condensation heat transfer slab, heat transfer slab's ripple form adopts the form of vertical herringbone ripple and straight ripple combination, forms the cold and hot passageway runner sectional area of two kinds of differences from this, and the steam side is walked to the runner that the sectional area is big, and the side is walked to the runner that the sectional area is little.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heat exchange plate for a plate heat exchanger for steam condensation comprises a plurality of heat exchange plates arranged between a fixed pressing plate and a movable pressing plate in the plate heat exchanger, wherein the heat exchange plates are in a rectangular shape with a high length-width ratio; the four right-angle positions of the rectangular heat exchange plate are provided with angle holes, and the heat exchange plate is also provided with hanging holes; the main heat exchange area of the heat exchange plate is longitudinal herringbone corrugation or straight corrugation, and the heat exchange plate is formed by assembling longitudinal herringbone corrugation plate sheets and straight corrugation plate sheets; the heat exchange plate flow channel is formed by two different flow channel sectional areas of cold and hot channels formed between the plates.
In the assembling process, the runners of the heat exchange plates form supporting contacts by crossing herringbone ripples and straight ripples, and two different runner sectional areas of the cold and hot channels are formed. Compare with the uniform cross-section runner that traditional herringbone ripple constitutes, the utility model discloses a plate heat exchanger that steam condensation used has solved the unmatched condition of steam with the velocity of water to improve heat transfer effect greatly.
Preferably, the steam side plate corner hole diameter is larger than the water side plate corner hole diameter.
Preferably, the heat exchange plate is mainly made of stainless steel.
Preferably, the heat exchange plate is clamped between the fixed pressing plate and the movable pressing plate through bolts.
Preferably, the heat exchange plates form two different flow passage sectional areas of the cold and hot channels, so that the problem that the flow rates of steam and water are not matched is solved.
The utility model provides a plate heat exchanger's that steam condensation was used heat transfer plate structure constitutes the cold and hot passageway flow cross-sectional area of two kinds of differences, has avoided steam and the unmatched condition of water velocity of each other to take place. Adopt the utility model discloses a compare with traditional slab equipment behind the dedicated heat transfer slab of steam condensation, improved vapour-liquid heat exchange's effect greatly for whole equipment is more compact.
Drawings
Fig. 1 is a schematic view of a heat exchange plate structure of a plate heat exchanger for steam condensation according to the present invention, which is a cooling water side plate, and the main heat exchange area is a straight ripple;
fig. 2 is a schematic view of a heat exchange plate structure of a plate heat exchanger for steam condensation according to the present invention, which is a steam side plate, and the main heat exchange area is a longitudinal herringbone ripple;
FIG. 3 shows a steam side flow passage and a cooling water side flow passage formed by heat exchange plates of the plate heat exchanger for steam condensation according to the present invention;
fig. 4 is a corner hole of a heat exchange plate of a plate heat exchanger for steam condensation of the present invention, in which (a) is formed by a peripheral corrugation of the corner hole, and (b) is a gear-shaped corrugation of a-a section in fig. (a);
in the attached drawing, 1 is an angular hole, 2 is a straight ripple, 3 is a longitudinal herringbone ripple, 4 is an angular hole, 5 is a steam side runner, and 6 is a cooling water side runner.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
For the fields of thermal power plants, chemical industry and the like, the condition of steam condensation is often encountered, so that the areas of a flow channel of steam of the heat exchange device and a flow channel of cooling water are expected to be matched. Most of the traditional plate heat exchangers adopt herringbone ripples and form grid-crossed runners, so that the sectional areas of cold runners and hot runners are equal, the condition of unmatched steam-liquid flow velocity can be generated, and the heat exchange efficiency is low and the operation cost is high.
The utility model discloses plate heat exchanger to using under the steam condensation occasion in fields such as steam power plant, chemical industry. After the plate type heat exchanger plate special for steam condensation is adopted, the condition that the flow velocity of the steam-liquid two sides is not matched can be obviously improved. Adopt the utility model discloses a flow area of the cold and hot both sides of dedicated heat transfer plate of steam condensation is more reasonable. Meanwhile, the main heat exchange area is designed in a mode of combining longitudinal herringbone ripples with straight ripples, so that the rigidity and the flow channel width between the plates are ensured.
The plate heat exchanger special for steam condensation is mainly assembled by a plate bundle formed by combining a longitudinal herringbone corrugated heat exchange plate and a straight corrugated heat exchange plate. The plate is clamped between the fixed pressing plate and the movable pressing plate by bolts, a plurality of flow channels are formed in the heat exchanger, and the plate is sealed by rubber. The heat exchange plates are made of high-quality corrosion-resistant metal sheets through pressing, corner holes for the medium to enter and exit are punched at four corners, and hanging holes are formed at the upper and lower parts. The contact formed by the longitudinal herringbone ripples and the straight ripples can increase disturbance on fluid, two different hot and cold channel flow channel sectional areas are formed, and the condition that the flow rates of steam and water are not matched mutually is avoided. Meanwhile, the diameter of the corner hole of the steam-side plate is larger than that of the corner hole of the water-side plate.
As shown in fig. 1 and 2, the present invention provides a heat exchange plate for a plate heat exchanger for steam condensation, the plate heat exchanger includes a plurality of heat exchange plates disposed between a fixed pressure plate and a movable pressure plate in the plate heat exchanger, the heat exchange plates are rectangular with a high aspect ratio, and the aspect ratio is 2.3; the four right-angle positions of the rectangular heat exchange plate are provided with angle holes, and the heat exchange plate is also provided with hanging holes; the main heat exchange area of the heat exchange plate sheet is in a form of combining longitudinal herringbone ripples with straight ripples, namely one heat exchange plate is set to be the longitudinal herringbone ripples, and the other heat exchange plate is set to be the straight ripples.
The diameter of the corner hole of the heat exchange plate on the steam side is larger than that of the heat exchange plate on the water side. The periphery of the angular hole of the heat exchanger plate is also provided with special corrugations in the shape of a gear, see fig. 4.
As fig. 3, the utility model provides a plate heat exchanger's that steam condensation used heat transfer slab forms the cold and hot passageway flow cross-sectional area of two kinds of differences through between vertical herringbone ripple slab and the straight ripple slab, has avoided steam and the unmatched condition of water velocity of flow to take place each other, more is applicable to fields such as steam power plant and chemical industry.
Preferably, the heat exchange plate is mainly made of stainless steel.
Preferably, the heat exchange plate is clamped between the fixed pressing plate and the movable pressing plate through bolts.
Under the condition of vapour-liquid heat exchange, compare with traditional slab, the utility model discloses a form the cold and hot passageway flow cross section area of two kinds of differences between slab and the slab, avoided steam and the unmatched condition of water velocity of each other to take place, simultaneously greatly reduced running cost.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. A heat exchange plate for a plate heat exchanger for steam condensation, the plate heat exchanger comprises a plurality of heat exchange plates arranged between a fixed pressure plate and a movable pressure plate in the plate heat exchanger,
the heat exchanger plates are in the shape of a rectangle with a high aspect ratio,
the four right-angle positions of the rectangular heat exchange plate are provided with angle holes, and the heat exchange plate is also provided with hanging holes;
it is characterized in that the preparation method is characterized in that,
the heat exchange plate is formed by assembling longitudinal herringbone corrugated plate sheets and straight corrugated plate sheets;
the heat exchange plate flow channel is formed between the longitudinal herringbone corrugated plate and the straight corrugated plate.
2. A heat exchanger plate for a plate heat exchanger for steam condensation according to claim 1, characterized in that the diameter of the corner holes of the plate on the steam side is larger than the diameter of the corner holes of the plate on the water side.
3. A heat exchanger plate for a plate heat exchanger for steam condensation according to claim 1, characterized in that the corner holes of the heat exchanger plate are peripherally provided with cogwheel-shaped corrugations.
4. A heat exchanger plate for a plate heat exchanger for steam condensation according to claim 1, characterised in that the heat exchanger plate is of stainless steel.
5. A heat exchanger plate for a plate heat exchanger for steam condensation according to claim 1, characterized in that the heat exchanger plate is clamped between the stationary pressure plate and the movable pressure plate by means of bolts.
6. The heat exchanger plate for a plate heat exchanger for steam condensation as recited in claim 1, wherein two different flow passage sectional areas of the cold and hot passages are formed between said longitudinal chevron-shaped corrugated plate and said flat corrugated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482145.7U CN212931106U (en) | 2020-07-24 | 2020-07-24 | Heat exchange plate sheet of plate heat exchanger for steam condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482145.7U CN212931106U (en) | 2020-07-24 | 2020-07-24 | Heat exchange plate sheet of plate heat exchanger for steam condensation |
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| Publication Number | Publication Date |
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| CN212931106U true CN212931106U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021482145.7U Active CN212931106U (en) | 2020-07-24 | 2020-07-24 | Heat exchange plate sheet of plate heat exchanger for steam condensation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984874A (en) * | 2021-04-20 | 2021-06-18 | 埃能科技(广州)有限公司 | Evaporative condenser, manufacturing method thereof and air conditioning unit |
| CN117739718A (en) * | 2023-12-25 | 2024-03-22 | 南京胜德金属装备有限公司 | Stainless steel double-tube plate type heat exchanger |
-
2020
- 2020-07-24 CN CN202021482145.7U patent/CN212931106U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984874A (en) * | 2021-04-20 | 2021-06-18 | 埃能科技(广州)有限公司 | Evaporative condenser, manufacturing method thereof and air conditioning unit |
| CN117739718A (en) * | 2023-12-25 | 2024-03-22 | 南京胜德金属装备有限公司 | Stainless steel double-tube plate type heat exchanger |
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