Double-effect heat exchanger with top and bottom guide rods

Abstract

The utility model relates to a double-effect heat exchanger with top and bottom guide rods, which comprises stacked sheets, heat exchange channels are formed among the sheets, a front end plate is arranged at the foremost end of the stacked sheets, a rear end plate is arranged at the rearmost end of the stacked sheets, and the guide rods penetrate among the sheets, the front end plate and the rear end plate. The guide rods penetrate through the inward concave positions of the outer edges of the plate sheets, tensioning guide rods are arranged at the positions, close to the tops and the bottoms, of the surfaces of the front end plate and the rear end plate, the tensioning guide rods penetrate through the front end plate and the rear end plate, and locking bolts are installed at the two ends of each tensioning guide rod. According to the double-effect heat exchanger with the top guide rods and the bottom guide rods, the tensioning guide rods are installed at the tops and the bottoms of the front faces of the front end plate and the rear end plate, the locking bolts are installed on the tensioning guide rods, the tensioning effect similar to that of pull rods can be achieved on the end plates and the plate sheets, and therefore the situation that the double-effect heat exchanger is loosened and deformed after being subjected to lateral pressure is avoided; and therefore, the normal use of the double-effect heat exchanger is ensured.

Description

Technical Field

[0001] The utility model relates to a double-effect heat exchanger with top and bottom guide rods. Background Art

[0002] Double-effect heat exchanger is a high-efficiency and energy-saving heat exchange equipment with many advantages such as high heat transfer efficiency, light weight, small footprint, easy maintenance, etc. Double-effect heat exchanger is a high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates; the cross-corrugation between the plates not only forms a channel, but also has a pressure-bearing and fixing effect.

[0003] The traditional double-effect heat exchanger is mainly composed of plates, end plates and guide rods. The middle plates are fixed by the end plates, and the guide rods are used to guide and fix the plates. However, in some high-pressure environments, the traditional double-effect heat exchanger is prone to loosening of plates after being subjected to lateral pressure, which in turn affects the normal use of the double-effect heat exchanger. Summary of the invention

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a double-effect heat exchanger with top and bottom guide rods which can play a tightening role.

[0005] The purpose of the utility model is achieved in this way:

[0006] A double-effect heat exchanger with top and bottom guide rods comprises stacked plates, heat exchange channels are formed between the plates, a front end plate is arranged at the front end of the stacked plates, and a rear end plate is arranged at the rear end thereof, the front end plate and the rear end plate press and fix the middle plate, medium through holes are opened at the same position on the plates, guide rods are passed between the plates, the front end plate and the rear end plate, the guide rods pass through the inwardly recessed position of the outer edge of the plate, tensioning guide rods are arranged on the surfaces of the front end plate and the rear end plate at positions close to the top and the bottom, the tensioning guide rods pass through the front end plate and the rear end plate, locking bolts are installed at both ends of the tensioning guide rods, and the locking bolts lock the tensioning guide rods and the front end plate and the rear end plate.

[0007] The medium through holes are respectively connected with the heat exchange channels on the plates.

[0008] The tension guide rod is perpendicular to the front end plate and the rear end plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] This double-effect heat exchanger with top and bottom guide rods is equipped with tensioning guide rods at the top and bottom of the front of the front and rear end plates. Locking bolts are installed on the tensioning guide rods, which can tighten the end plates and plates similar to pull rods, thereby preventing the double-effect heat exchanger from loosening and deforming after being subjected to lateral pressure, thereby ensuring the normal use of the double-effect heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a double-effect heat exchanger with top and bottom guide rods of the utility model.

[0012] Figure 2 for Figure 1 Schematic diagram of the front and middle panels.

[0013] Figure 3 for Figure 1 Schematic diagram of the middle plate.

[0014] Among them: plate 1, front end plate 2, rear end plate 3, medium through hole 4, guide rod 5, tension guide rod 6, locking bolt 7. DETAILED DESCRIPTION

[0015] See also Figures 1 to 3 The utility model relates to a double-effect heat exchanger with top and bottom guide rods, which includes stacked plates 1, and heat exchange channels are formed between the plates 1. The front end of the stacked plates 1 is provided with a front plate 2, and the rear end is provided with a rear plate 3. The front plate 2 and the rear plate 3 press and fix the middle plate 1. Medium through holes 4 are opened at the same position on the plate 1, the front plate 2, and the rear plate 3. The medium through holes 4 are respectively connected with the heat exchange channels on the plate 1. Cold and hot media flow in and out from different medium through holes 4, thereby completing the heat exchange of the liquid.

[0016] A guide rod 5 is passed through the plate 1, the front end plate 2, and the rear end plate 3. The guide rod 5 passes through the inwardly concave position of the outer edge of the plate 1, and is used to guide all the plates to ensure that the plates will not move relative to each other due to liquid pressure when in use. A tensioning guide rod 6 is provided on the surface of the front end plate 2 and the rear end plate 3 near the top and the bottom. The tensioning guide rod 6 passes through the front end plate 2 and the rear end plate 3, and the tensioning guide rod 6 is perpendicular to the front end plate 2 and the rear end plate 3. Locking bolts 7 are installed at both ends of the tensioning guide rod 6, and the locking bolts 7 lock the tensioning guide rod 6 and the front end plate 2 and the rear end plate 3. The tensioning guide rod 6 can play a tightening role similar to a pull rod on the end plate, thereby preventing the double-effect heat exchanger from loosening and deforming after being subjected to lateral pressure, thereby ensuring the normal use of the double-effect heat exchanger.

Claims

1. A double-effect heat exchanger with top and bottom guide rods, characterized by: It includes stacked plates, and heat exchange channels are formed between the plates. A front end plate is provided at the front end of the stacked plates, and a rear end plate is provided at the rear end thereof. The front end plate and the rear end plate press and fix the middle plate, and medium through holes are opened on the plates, the front end plate and the rear end plate at the same position. Guide rods are passed between the plates, the front end plate and the rear end plate, and the guide rods pass through the inwardly concave position of the outer edge of the plate. Tightening guide rods are provided on the surfaces of the front end plate and the rear end plate at positions close to the top and the bottom, and the tightening guide rods pass through the front end plate and the rear end plate. Locking bolts are installed at both ends of the tightening guide rods, and the locking bolts lock the tightening guide rods and the front end plate and the rear end plate.

2. The double-effect heat exchanger with top and bottom guide rods according to claim 1, characterized in that: The medium through holes are respectively connected with the heat exchange channels on the plates.

3. The double-effect heat exchanger with top and bottom guide rods according to claim 1, characterized in that: The tension guide rod is perpendicular to the front end plate and the rear end plate.

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