Heat exchanger capable of preventing differential pressure deformation

Abstract

The utility model discloses a heat exchanger capable of preventing pressure difference deformation, and particularly relates to the technical field of plate heat exchangers, which comprises a supporting frame, a plurality of guide rods are arranged on one side of the supporting frame through bolts, a movable clamping plate is arranged at one end of each guide rod, and a plurality of heat exchanger plates are arranged between the movable clamping plates and the supporting frame. A plurality of buffer partition plates are arranged among the heat exchanger plates. Due to the fact that the buffering partition plates are additionally arranged between the plates of the heat exchanger, fluctuation displacement of the plates can be reduced, the effect of a rigid baffle is achieved, deformation is not prone to occurring, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, and particularly relates to a heat exchanger for preventing differential pressure deformation. Background Technique

[0002] A plate heat exchanger is a highly efficient heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. The plate heat exchanger is an ideal device for liquid-liquid and liquid-vapor heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and lightweight structure, small floor area, wide application, long service life, etc. Under the same pressure loss condition, its heat transfer coefficient is 3-5 times higher than that of a tubular heat exchanger, the floor area is one-third of that of a tubular heat exchanger, and the heat recovery rate can be as high as over 90%.

[0003] When the plate heat exchanger is in operation, after starting the water-side pump valve first, the water-side pressure instantaneously increases. At this time, the pressure in the material-side space is empty, generating a pressure wave, as Figure 1 shown; when the water side operates stably, start the material-side pump valve. At this time, the material-side pressure increases. Because the actual pressure on the material side of the system is greater than that on the water side, a reverse pressure wave will be generated, as Figure 2 shown; after a period of time, it is necessary to stop and switch. At this time, first close the material-side pump valve, causing the material-side pressure to instantaneously decrease, and the water-side pressure is greater than the material side, as Figure 1 shown; when starting again, as Figure 2 shown, and so on for reciprocating operation, thus causing equipment failures and plate breaks.

[0004] Therefore, since the plates of the plate heat exchanger are relatively thin, when there is a certain pressure difference between the two sides of the medium, the thin plates of the plate heat exchanger will inevitably have a certain deformation under the action of the pressure difference, and the volume inside the two sides of the heat exchanger will change slightly accordingly. This characteristic is easily overlooked. Therefore, when the pressures on both sides fluctuate frequently, the deformation of its heat exchange plates is inevitable. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat exchanger for preventing differential pressure deformation to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A heat exchanger for preventing differential pressure deformation, including a support frame. On one side of the support frame, a plurality of guide rods are arranged through bolts. One end of the guide rod is provided with a movable clamping plate. Between the movable clamping plate and the support frame, there are a plurality of heat exchanger plates, and between the plurality of heat exchanger plates, there are a plurality of buffer partitions.

[0007] In a preferred embodiment, the buffer partition is made of a 5-6 mm stainless steel plate.

[0008] In a preferred embodiment, a milling groove is formed in the buffer partition plate, and the milling groove is matched with the sealing strip on the heat exchanger plate.

[0009] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0010] By adding a buffer partition plate between the heat exchanger plates, the present utility model can reduce the fluctuating displacement of the plates, play the role of a rigid baffle, and is not easily deformed, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is a schematic structural diagram during the operation of a plate heat exchanger;

[0013] Figure 2 is another schematic structural diagram during the operation of a plate heat exchanger;

[0014] Figure 3 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 4 is a schematic front view structure diagram of the present utility model.

[0016] In the figure: 1, support frame; 2, guide rod; 3, movable splint; 4, heat exchanger plate; 5, buffer partition plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 3 - 4 , the present utility model provides a heat exchanger for preventing deformation caused by differential pressure, including a support frame 1. A plurality of guide rods 2 are provided on one side of the support frame 1 through bolts. One end of the guide rod 2 is provided with a movable splint 3. A plurality of heat exchanger plates 4 are provided between the movable splint 3 and the support frame 1. A plurality of buffer partition plates 5 are provided between the plurality of heat exchanger plates 4.

[0019] In a preferred embodiment, the buffer partition 5 is made of a 5-6 mm stainless steel plate.

[0020] In a preferred embodiment, a milling groove is formed in the buffer partition 5, and the milling groove is matched with the sealing strip on the heat exchanger plate 4.

[0021] The working principle of the present utility model:

[0022] Since the problem points are mainly concentrated at the baffle position, considering the on-site process operation conditions, the micro-deformation degree of the heat exchanger plate is reduced. Therefore, an intermediate pressure buffer partition needs to be added. The partition is made of a 5-6 mm stainless steel plate and is designed according to the plate structure. The purpose is to strengthen, so as to reduce the fluctuating displacement of the plate and extend the service life of the equipment.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model 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 on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat exchanger for preventing pressure difference deformation, comprising a support frame (1), characterized in that: A plurality of guide rods (2) are provided on one side of the support frame (1) by means of bolts, a movable clamping plate (3) is provided at one end of the guide rod (2), a plurality of heat exchanger plates (4) are provided between the movable clamping plate (3) and the support frame (1), and a plurality of buffer partitions (5) are provided between the plurality of heat exchanger plates (4).

2. The heat exchanger for preventing pressure difference deformation according to claim 1, characterized in that: The buffer partition (5) is made of a 5-6 mm stainless steel plate.

3. The heat exchanger for preventing pressure difference deformation according to claim 1, characterized in that: The buffer baffle (5) is provided with a milling groove, and the milling groove matches the sealing strip on the heat exchanger plate (4).

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