Anti-freezing heat exchanger

Abstract

The invention discloses an anti-freezing heat exchanger. The anti-freezing heat exchanger comprises multiple heat exchanging plate sets stacked in sequence. Each heat exchanging plate set comprises a first heat exchanging plate and a second heat exchanging plate, wherein a first fluid channel is formed between the first heat exchanging plate and the second heat exchanging plate, a second fluid channel is formed between every two adjacent heat exchanging plate sets, multiple first half-height long grooves are formed in the right half of the upper surface of the first heat exchanging plate from top to bottom, multiple first half-height long convex strips are arranged on the left half of the upper surface of the first heat exchanging plate from bottom to top in a convex mode, multiple second half-height long convex strips are arranged on the right half of the upper surface of the second heat exchanging plate from bottom to top in a convex mode, multiple second half-height long grooves are formed in the left half of the upper surface of the second heat exchanging plate from top to bottom, the multiple first long grooves correspond to the multiple second long convex strips one to one, the multiple first convex strips correspond to the multiple second long grooves one to one, and long channels are formed between the long convex strips and the long grooves corresponding to the long convex strips. The flowing speed of fluid is increased, and heat exchanging efficiency is improved.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to an antifreeze heat exchanger. Background technique [0002] The heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, so that the temperature of the fluid reaches the index specified in the process flow. It is a general-purpose equipment in chemical, petroleum, power, food and many other industrial sectors. It is used in production occupy an important position in. [0003] Most of the heat exchangers are composed of several heat exchange plates. Two different fluid channels are formed between the adjacent three heat exchange plates to allow the fluid to exchange heat. If the local flow velocity at the side edge is too low, the temperature on the corresponding opposite side of the product will be too low, resulting in uneven temperature, especially if the water heat exchange is used, it will easily lead to freezing, which will affect the hea...

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Problems solved by technology

[0004] In order to solve the problem that the current flow velocity at the edge of the heat exchange plate is too low and the temperature is uneven and easy to freeze, the present invention provides an antifreeze heat exchanger, which includes several sets of heat exchange plates stacked in sequence, and each set of heat exchange The plate group includes a first heat exchange plate 1 and a second heat exchange plate 2, the first heat exchange plate 1 is covered on the second heat exchange plate 2, and a heat exchange plate is formed between the first heat exchange plate 1 and the second heat exchange plate 2 The first fluid channel, the second fluid channel is formed between two adjacent heat exchange plate groups, the right half of the upper surface of the first heat exchange plate 1 has several half-height first long grooves 3 downward from the top , the left half of the upper surface of the first heat exchange plate 1 protrudes upwards from the bottom with several half-height first long ribs 4; the right half of the upper surface of the second heat exchange plate 1 protrudes upwards from the bottom with several A half-height second long convex strip 5, the left half of the upper surface of the second heat exchange plate 1 has several half-height second long grooves 6 downward from the top, and the right half of the first heat exchange plate 1 Several first long grooves 3 of the first heat exchange plate 1 correspond one-to-one to several second long convex strips 5 on the right half of the second heat exchange plate 1, and several first long convex strips 4 on the left half of the first heat exchange plate 1 correspond to the second long convex strips 5 on the second heat exchange plate 1. The second long grooves 6 on the left half of the heat exchange plate 1 are in one-to-one correspondence, and the long convex strips and the corresponding long grooves form long channels

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