Plate heat exchanger capable of preventing inner leakage

Abstract

The plate heat exchanger capable of preventing inner leakage comprises a first fixing plate and a second fixing plate, a plurality of heat dissipation plates are arranged between the first fixing plate and the second fixing plate in a stacked mode in the transverse direction, and a heat flow inlet and a heat flow outlet are formed in the two ends of one sides of the front faces and the back faces of the first fixing plate and the second fixing plate respectively. A cold flow outlet and a cold flow inlet are formed in the two ends of one sides of the front faces and the back faces of the first fixing plate and the second fixing plate correspondingly, and fixing ferrules are arranged at the hot flow inlet, the hot flow outlet, the cold flow outlet and the cold flow inlet of the heat dissipation plate. According to the utility model, each heat dissipation plate is connected with the fixing ferrule through the glue, the connection between the heat dissipation plates is realized by connecting the clamping block of the fixing ferrule at the position into the clamping groove of the fixing ferrule of another heat dissipation plate in a clamping manner, so that the connection of each heat dissipation plate is realized; and each heat dissipation plate is connected with the other heat dissipation plate in a sealing manner, so that the inner leakage phenomenon is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to an internal leakage-proof plate heat exchanger. Background Art

[0002] A plate heat exchanger is a high-efficiency heat exchanger made of a series of stacked metal sheets with a certain corrugated shape. Thin rectangular channels are formed between the various plates, and heat exchange is carried out through the plates. The plate heat exchanger is an ideal equipment for liquid-liquid and liquid-vapor heat exchange. It has the characteristics of high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application and long service life.

[0003] However, during long-term use, the sealing ring of the plate heat exchanger in the prior art will produce a certain amount of wear, which will cause liquid leakage in the plate heat exchanger. At the least, it will affect the heat exchange performance of the heat exchanger, and at the worst, it may cause an explosion, which is extremely dangerous. Utility Model Content

[0004] The purpose of the present utility model is to provide a plate heat exchanger that prevents internal leakage, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A plate heat exchanger for preventing internal leakage, comprising a first fixing plate and a second fixing plate, wherein a plurality of heat dissipation plates are stacked transversely between the first fixing plate and the second fixing plate, a hot flow inlet and a hot flow outlet are respectively provided at both ends of the front and back sides of the first fixing plate and the second fixing plate, a cold flow outlet and a cold flow inlet are respectively provided at both ends of the front and back sides of the first fixing plate and the second fixing plate, and connecting flanges are provided on the surfaces of the hot flow inlet, the hot flow outlet, the cold flow outlet, and the cold flow inlet;

[0007] The heat dissipation plate is provided with a fixed ring at the hot flow inlet, hot flow outlet, cold flow outlet and cold flow inlet of the heat dissipation plate, and the fixed ring includes a ring, a first sealing ring and a second sealing ring. The inner surfaces of the hot flow inlet, hot flow outlet, cold flow outlet and cold flow inlet are connected to the outer surface of the ring by glue. The front of the ring is provided with a first sealing ring, the back of the ring is provided with a second sealing ring, and the front of the second sealing ring is provided with a card block. The front of the first sealing ring is provided with a card slot, and the card block is snap-fitted and connected to the card slot of another fixed ring. A sealing plate is provided between the two heat dissipation plates, and through holes are provided on the front and back of the sealing plate corresponding to the second sealing ring. The straightness of the through hole

[0008] The diameter matches the outer diameter of the second sealing ring.

[0009] Preferably, a plurality of fixing rods are respectively provided on both sides between the first fixing plate and the second fixing plate, and both ends of the fixing rods are respectively connected to the first fixing plate and the second fixing plate by bolts.

[0010] Preferably, support plates are provided on both sides of the bottom of the front side of the first fixing plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model discloses a plate heat exchanger with anti-internal leakage, in which a ring with a fixed ring is connected to the hot flow inlet, hot flow outlet, cold flow outlet and cold flow inlet of each heat sink by glue, and the connection between each heat sink is achieved by snapping the block of the fixed ring here into the slot of the fixed ring of another heat sink, thereby realizing the connection of each heat sink. Through the above connection method, after the connection, the connection between each heat sink and the other heat sink will be sealed to prevent the occurrence of internal leakage.

[0013] The utility model provides a plate heat exchanger with anti-internal leakage. After the above connection, a certain gap will be generated between each heat dissipation plate. A sealing plate is connected at the gap by glue. The through hole opened in the sealing plate will set the fixing ring inside the through hole, thereby achieving further sealing between the heat dissipation plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the heat dissipation plate connection structure of the present utility model;

[0016] Figure 3 This is a side structural diagram of a fixing ring of the present invention;

[0017] Figure 4 This is a schematic structural diagram of another side surface of the fixing ring of the present invention.

[0018] In the figure: 1. First fixing plate; 2. Heat dissipation plate; 3. Second fixing plate; 4. Fixing rod; 5. Connecting flange; 6. Hot flow inlet; 7. Hot flow outlet; 8. Cold flow outlet; 9. Cold flow inlet; 10. Sealing plate; 11. Through hole; 12. Fixing ring; 13. Ring; 14. First sealing ring; 15. Second sealing ring; 16. Block; 17. Support plate; 18. Slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention. Obviously, the embodiment described is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiment of the present invention, ordinary people in the field

[0020] All other embodiments obtained by technicians without making any creative work shall fall within the scope of protection of this utility model.

[0021] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A plate heat exchanger for preventing internal leakage includes a first fixing plate 1 and a second fixing plate 3. A plurality of heat dissipation plates 2 are stacked horizontally between the first fixing plate 1 and the second fixing plate 3. A hot flow inlet 6 and a hot flow outlet 7 are respectively provided at both ends of the front and back sides of the first fixing plate 1 and the second fixing plate 3. A cold flow outlet 8 and a cold flow inlet 9 are respectively provided at both ends of the front and back sides of the first fixing plate 1 and the second fixing plate 3. Connecting flanges 5 are provided on the surfaces of the hot flow inlet 6, the hot flow outlet 7, the cold flow outlet 8, and the cold flow inlet 9.

[0025] A fixed ring 12 is provided at the hot flow inlet 6, hot flow outlet 7, cold flow outlet 8 and cold flow inlet 9 of the heat sink 2. The fixed ring 12 includes a ring 13, a first sealing ring 14 and a second sealing ring 15. The inner surfaces of the hot flow inlet 6, hot flow outlet 7, cold flow outlet 8 and cold flow inlet 9 are connected to the outer surface of the ring 13 by glue. The front of the ring 13 is provided with a first sealing ring 14, the back of the ring 13 is provided with a second sealing ring 15, and the front of the second sealing ring 15 is provided with a clamping block 16. The front of the first sealing ring 14 is provided with a clamping groove 18, and the clamping block 16 is snap-fittedly connected to the clamping groove 18 of the other fixed ring 12. A sealing plate 10 is provided between the two heat sinks 2. Through holes 11 are provided on the front and back of the sealing plate 10 corresponding to the second sealing ring 15. The diameter of the through hole 11 matches the outer diameter of the second sealing ring 15.

[0026] Furthermore, a plurality of fixing plates are provided on both sides between the first fixing plate 1 and the second fixing plate 3.

[0027] The fixed rod 4 and the two ends of the fixed rod 4 are respectively connected to the first fixed plate 1 and the second fixed plate 3 by bolts.

[0028] Furthermore, support plates 17 are provided on both sides of the bottom of the front side of the first fixing plate 1 , and the present invention is supported by the support plates 17 .

[0029] Working principle: The utility model is a plate heat exchanger with anti-internal leakage. The hot flow inlet 6, hot flow outlet 7, cold flow outlet 8, and cold flow inlet 9 of each heat sink 2 are connected to the ring 13 of the fixed ring 12 by glue. The connection between each heat sink 2 is achieved by snapping the block 16 of the fixed ring 12 here into the slot 18 of the fixed ring 12 of another heat sink 2, thereby realizing the connection of each heat sink 2. Through the above connection method, after the connection, the connection between each heat sink 2 and another heat sink 2 will be sealed to prevent the occurrence of internal leakage.

[0030] After the above connection, a certain gap will be generated between each heat sink 2, and a sealing plate 10 will be connected at the gap by glue. The through hole 11 opened in the sealing plate 10 will set the fixing ring 12 inside the through hole 11, thereby achieving further sealing between the heat sinks 2.

[0031] It should be noted that the present invention uses existing mature technology to connect the first fixing plate 1 and the second fixing plate 3 through the fixing rod 4, and the specific connection method will not be described in detail again.

[0032] In addition, the use of the plate radiator of the present invention is the same as that of the prior art, and its use principle will not be described in detail again.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate heat exchanger with internal leakage prevention, comprising a first fixing plate (1) and a second fixing plate (3), characterized in that: A plurality of heat dissipation plates (2) are stacked in a transverse direction between the first fixed plate (1) and the second fixed plate (3); a hot flow inlet (6) and a hot flow outlet (7) are respectively provided at both ends of the front and back sides of the first fixed plate (1) and the second fixed plate (3); a cold flow outlet (8) and a cold flow inlet (9) are respectively provided at both ends of the front and back sides of the first fixed plate (1) and the second fixed plate (3); and connecting flanges (5) are provided on the surfaces of the hot flow inlet (6), the hot flow outlet (7), the cold flow outlet (8), and the cold flow inlet (9); The heat flow inlet (6), the heat flow outlet (7), the cold flow outlet (8), and the cold flow inlet (9) of the heat dissipation plate (2) are provided with a fixed ring (12), and the fixed ring (12) includes a ring (13), a first sealing ring (14), and a second sealing ring (15). The inner surfaces of the heat flow inlet (6), the heat flow outlet (7), the cold flow outlet (8), and the cold flow inlet (9) are connected to the outer surface of the ring (13) by glue. The front side of the ring (13) is provided with a first sealing ring (14), and the back side of the ring (13) is provided with a second sealing ring (15). A second sealing ring (15) is provided, a clamping block (16) is provided on the front of the second sealing ring (15), a clamping groove (18) is provided on the front of the first sealing ring (14), and the clamping block (16) is snap-connected to the clamping groove (18) of another fixed ring (12); a sealing plate (10) is provided between the two heat dissipation plates (2), and through holes (11) are provided on the front and back of the sealing plate (10) corresponding to the second sealing ring (15), and the diameter of the through hole (11) matches the outer diameter of the second sealing ring (15).

2. The anti-internal leakage plate heat exchanger according to claim 1, characterized in that: A plurality of fixing rods (4) are respectively provided on both sides between the first fixing plate (1) and the second fixing plate (3), and both ends of the fixing rods (4) are respectively connected to the first fixing plate (1) and the second fixing plate (3) by bolts.

3. The anti-internal leakage plate heat exchanger according to claim 1, characterized in that: Support plates (17) are provided on both sides of the bottom of the front side of the first fixing plate (1).

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