Large-flux plate heat exchanger plate

Abstract

The utility model belongs to the technical field of plate heat exchangers, and particularly relates to a large-flux plate heat exchanger plate which comprises a heat exchange plate body. The heat exchange plate body serves as a basic component of the whole heat exchanger and has the main function of heat transfer, the diameter of the corner holes ranges from 600 mm to 800 mm and is far larger than that of a traditional design, the fluid flux is remarkably increased, particularly, the corner holes are located in the longitudinal center line of the whole heat exchange plate body, the uniformity of flow field distribution is guaranteed, and the heat exchange efficiency is improved. The transition area is connected with the corner holes and the heat exchange area, fluid can smoothly enter and leave the heat exchange area, the heat exchange area is the main area for heat exchange, heat transfer of cold and hot fluid is achieved through the thin rectangular channels between the heat exchange plate bodies, and the heat exchange efficiency is improved. The sealing gaskets and the sealing rings ensure the sealing performance between the heat exchange plate bodies, fluid leakage is prevented, and meanwhile the fluid is allowed to efficiently flow between the heat exchange plate bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, and specifically relates to a plate for a high-throughput plate heat exchanger. Background Technique

[0002] A plate heat exchanger is an efficient heat exchanger formed by stacking metal thin plates pressed into various corrugated shapes by a hydraulic press. Flow channels are formed between the plate corrugations, and the medium flows in the channels and exchanges heat through the heat conductivity of the metal plates. Compared with shell-and-tube heat exchangers, under the same flow resistance and pump power consumption, the heat transfer coefficient of plate heat exchangers is much higher, and they have a small floor area and are convenient for maintenance, and are widely used in many fields. As a cold and heat exchange device, a plate heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small floor area, convenient installation and cleaning, wide application, and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of shell-and-tube heat exchangers, the floor area is one-third of that of shell-and-tube heat exchangers, and the heat recovery rate can be as high as over 90%. Plate heat exchangers are widely used in industries such as metallurgy, petroleum, chemical industry, food, pharmaceutical, shipbuilding, textile, and papermaking, and are excellent equipment for uses such as heating, cooling, heat recovery, and rapid sterilization. A plate heat exchanger is an efficient and compact heat exchange device with many advantages such as high heat transfer coefficient, small pressure loss, compact structure, and convenient maintenance. Its core component is composed of metal plates with a certain corrugated shape stacked upside down with each other. Two kinds of cold and hot fluids flow through both sides of the heat exchange plates to exchange heat;

[0003] With the development of technology, the area of heat exchange plates is getting larger and larger, and the specifications of the plate corner holes are always limited by the width of the raw material steel coil. Currently, the width of the commonly used thin steel coil in the market is ≤1500mm, and the plate corner holes can only reach 500mm, which severely restricts the design of high-throughput heat exchangers. At the same time, because the larger the area of the plate, the more likely it is to have an uneven flow field distribution, which seriously affects the heat exchange efficiency. Therefore, we propose a plate for a high-throughput plate heat exchanger to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a plate for a high-throughput plate heat exchanger, which solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] In order to achieve the above objectives, the utility model specifically adopts the following technical solutions:

[0008] A plate for a high-throughput plate heat exchanger, comprising a heat exchange plate body. Four corner holes are provided on the heat exchange plate body. Four transition zones are provided on the heat exchange plate body. The heat exchange plate body is provided with a heat exchange zone. A sealing groove is provided on the heat exchange plate body. A sealing gasket is in movable contact with the sealing groove. A plurality of mounting parts are provided on the heat exchange plate body. A sealing ring is in movable contact with the mounting parts.

[0009] Further, the four corner holes are arranged longitudinally, and the four corner holes are located on the longitudinal center line of the heat exchange plate body.

[0010] Further, the diameter of the corner holes is 600 - 800 mm.

[0011] Further, two opposite transition zones are respectively located on both sides of the corresponding two corner holes.

[0012] Further, two chamfered parts are provided at both the top and bottom of the heat exchange plate body.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides a plate for a high-throughput plate heat exchanger, having the following beneficial effects:

[0015] In the present utility model, the heat exchange plate body serves as the basic component of the entire heat exchanger and undertakes the main function of heat transfer. The diameter of the corner holes is between 600 - 800 mm, which is much larger than the traditional design, significantly increasing the flux of the fluid. In particular, the position of the corner holes is located on the longitudinal center line of the entire heat exchange plate body, ensuring the uniformity of the flow field distribution and avoiding the situation of uneven flow field distribution caused by the corner holes being on one side. The transition zones connect the corner holes and the heat exchange zone, enabling the fluid to smoothly enter and leave the heat exchange zone. The heat exchange zone is the main area for heat exchange, and the heat transfer between the hot and cold fluids is achieved through the thin rectangular channels between the heat exchange plate bodies. The sealing gasket and the sealing ring ensure the sealing between the heat exchange plate bodies, preventing fluid leakage and allowing the fluid to flow efficiently between the heat exchange plate bodies. Description of the drawings

[0016] Figure 1 It is a schematic structural diagram of the heat exchange plate body of the present utility model;

[0017] Figure 2 It is a schematic connection structural diagram of the heat exchange plate body, the sealing gasket and the sealing ring of the present utility model;

[0018] Figure 3 It is a schematic connection structural diagram of the sealing gasket and the sealing ring of the present utility model.

[0019] In the figure: 1. Heat exchange plate body; 2. Corner hole; 3. Transition zone; 4. Heat exchange zone; 5. Sealing groove; 6. Sealing gasket; 7. Installation part; 8. Sealing ring; 9. Chamfered part. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Embodiment

[0022] As Figures 1-3 shown, a plate of a high-flux plate heat exchanger proposed in an embodiment of the present invention includes a heat exchange plate body 1. Four corner holes 2 are provided on the heat exchange plate body 1. Four transition zones 3 are provided on the heat exchange plate body 1. The heat exchange plate body 1 is provided with a heat exchange zone 4. A sealing groove 5 is provided on the heat exchange plate body 1. A sealing gasket 6 is in movable contact with the sealing groove 5. A plurality of installation parts 7 are provided on the heat exchange plate body 1. A sealing ring 8 is in movable contact with the installation parts 7. The heat exchange plate body 1 serves as the basic component of the entire heat exchanger and undertakes the main function of heat transfer. The diameter of the corner holes 2 is between 600-800 mm, which is much larger than the traditional design, significantly increasing the flux of the fluid. In particular, the positions of the corner holes 2 are located on the longitudinal center line of the entire heat exchange plate body 1, ensuring the uniformity of the flow field distribution and avoiding the uneven flow field distribution caused by the corner holes 2 being on one side. The transition zones 3 connect the corner holes 2 and the heat exchange zone 4, enabling the fluid to smoothly enter and leave the heat exchange zone 4. The heat exchange zone 4 is the main area for heat exchange, and the heat transfer between the hot and cold fluids is achieved through the thin rectangular channels between the heat exchange plate bodies 1. The sealing gasket 6 and the sealing ring 8 ensure the sealing between the heat exchange plate bodies 1, preventing fluid leakage and allowing the fluid to flow efficiently between the heat exchange plate bodies 1.

[0023] In some embodiments, the four corner holes 2 are arranged longitudinally. The four corner holes 2 are located on the longitudinal center line of the heat exchange plate body 1. The corner holes 2 being located on the longitudinal center line can ensure that when the fluid enters the heat exchange plate body 1 from the corner holes 2, the flow path is more symmetrical and uniform, which helps to reduce the local overheating or overcooling phenomenon caused by uneven fluid distribution, improve the heat exchange efficiency. The symmetrical arrangement of the corner holes 2 helps to reduce the eddy current and dead zone of the fluid between the heat exchange plate bodies 1, enabling the fluid to contact the heat exchange plate body 1 more fully, thereby improving the heat exchange effect.

[0024] In some embodiments, the diameter of the corner hole 2 is 600 - 800 mm. The increase in the diameter of the corner hole 2 significantly increases the flow area of the fluid in the heat exchanger, thereby allowing a larger flow rate of fluid to pass through, enhancing the overall flux of the device, which is particularly important for industrial applications that require handling a large amount of fluid.

[0025] In some embodiments, two opposite transition zones 3 are respectively located on both sides of the corresponding two corner holes 2. The transition zones 3 being located on both sides of the corner holes 2 can ensure that the fluid entering from the corner holes 2 is preliminarily dispersed and guided within the transition zones 3, and thus enters the heat exchange part more evenly.

[0026] In some embodiments, two chamfered parts 9 are provided at both the top and bottom of the heat exchange plate body 1. The design of the chamfered parts 9 can make the flow path of the fluid smoother when it is at the top and bottom of the heat exchange plate body 1, reducing the fluid resistance caused by right angles or acute angles, which helps to enhance the fluidity of the fluid and thus improve the heat exchange efficiency.

[0027] Principle of operation or structural principle: During use, the heat exchange plate body 1 serves as the basic component of the entire heat exchanger, undertaking the main function of heat transfer. The diameter of the corner hole 2 is between 600 - 800 mm, which is much larger than the traditional design, significantly increasing the flux of the fluid. In particular, the position of the corner hole 2 is on the longitudinal center line of the entire heat exchange plate body 1, ensuring the uniformity of the flow field distribution and avoiding the uneven flow field distribution caused by the corner hole 2 being on one side. The transition zones 3 connect the corner holes 2 and the heat exchange zones 4, enabling the fluid to smoothly enter and leave the heat exchange zones 4. The heat exchange zones 4 are the main areas for heat exchange, and the heat transfer between the hot and cold fluids is achieved through the thin rectangular channels between the heat exchange plate bodies 1. The gaskets 6 and the sealing rings 8 ensure the sealing between the heat exchange plate bodies 1, preventing fluid leakage while allowing the fluid to flow efficiently between the heat exchange plate bodies 1.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A large flux plate heat exchanger plate, comprising a heat exchange plate body (1), characterized in that: The heat exchange plate body (1) is provided with four corner holes (2), the heat exchange plate body (1) is provided with four transition zones (3), the heat exchange plate body (1) is provided with a heat exchange zone (4), the heat exchange plate body (1) is provided with a sealing groove (5), a sealing gasket (6) is movably contacted on the sealing groove (5), a plurality of mounting portions (7) are provided on the heat exchange plate body (1), a sealing ring (8) is movably contacted on the mounting portion (7), the four corner holes (2) are arranged longitudinally, the four corner holes (2) are located on the longitudinal center line of the heat exchange plate body (1), and the diameter of the corner hole (2) is 600-800 mm.

2. A high flux plate heat exchanger plate according to claim 1, characterized in that: The two opposite transition areas (3) are respectively located on both sides of the corresponding two corner holes (2).

3. A high flux plate heat exchanger plate according to claim 1, characterized in that: The top and bottom of the heat exchange plate body (1) are both provided with two chamfered portions (9).

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