Plate-fin heat exchanger with long service life

Abstract

The utility model discloses a plate-fin heat exchanger with long service life, and relates to the technical field of heat exchangers, the plate-fin heat exchanger with long service life comprises an upper cooling tank, a lower cooling tank is arranged below the upper cooling tank, and a plurality of fin plates are arranged in the middle of the upper cooling tank in a matching way; the upper cooling tank and the lower cooling tank are respectively provided with an input port which is convenient for the matching connection of the conveying pipe, and are respectively provided with an output port which is convenient for the matching connection of the output pipe; an outer protection frame is arranged on the outer side of the conveying pipe and the outer side of the output pipe, and a connecting pipe is arranged on one side of the outer protection frame. A refrigerant or a heating medium enters the upper cooling groove and the lower cooling groove at the same time, so that temperature can be transmitted to the fin plates from the two ends, the rapid transmission effect is achieved, the outer protection frame on the outer side plays a role in protecting the conveying pipe and the output pipe, the protruding conveying pipe and the protruding output pipe are prevented from being damaged, the connecting pipe on one side plays a role in connection, and meanwhile the connecting pipe on the other side plays a role in connection. And the fan can be protected.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of heat exchangers, in particular to a plate-fin heat exchanger with a long service life. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid. It is also called heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used.

[0003] Chinese utility model publication number CN204268934U discloses a plate heat exchanger, comprising a frame and a plurality of plates; the frame comprises a bottom plate, a top plate and a plurality of fixing rods, the top plate is provided with a water inlet, a water outlet, a heat exchange medium inlet and a heat exchange medium outlet; the plurality of plates are stacked together and clamped and fixed between the bottom plate and the top plate, the surface of each plate is concave downward and the bottom surface is convex outward, and a plurality of grooves and a plurality of convex parts are formed respectively, and the plurality of convex parts on one plate are respectively suspended in the corresponding grooves of the adjacent plates;

[0004] In the above-mentioned plate heat exchanger, the fins are exposed on the outside without any protection measures. Since the fins are mostly made of aluminum, they are easily damaged. For this reason, we provide a plate-fin heat exchanger with a long service life. The cold and hot medium pipes are protected by an outer protective frame on the outside, and the fins are protected by a dust-proof net. Secondly, a connecting pipe is provided on the outside of the fan to protect the most vulnerable parts, which can effectively increase its service life and make up for the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a plate-fin heat exchanger with a long service life, so as to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A plate-fin heat exchanger with a long service life comprises a lower cooling groove arranged below an upper cooling groove, and a plurality of fin plates are installed in the middle; the upper cooling groove and the lower cooling groove are both provided with an input port for convenient connection with a delivery pipe, and the upper cooling groove and the lower cooling groove are both provided with an output port for convenient connection with an output pipe; an outer protective frame is arranged outside the delivery pipe and the output pipe, and a connecting pipe is arranged on one side of the outer protective frame.

[0008] As a further technical solution of the utility model, the outer guard frame is fixed to the upper cooling trough and the lower cooling trough by bolts, and a cover plate is fixed to the outer guard frame by bolts.

[0009] As a further technical solution of the utility model, the cover plate is provided with a circular hole for facilitating the extension of the delivery pipe and the output pipe, and the delivery pipe and the output pipe are respectively connected with the output end and the input end of the cooling tower.

[0010] As a further technical solution of the utility model, the connecting pipe is fixed to the rear cover plate by bolts, and the rear cover plate is provided with an installation opening for facilitating the installation of the fan.

[0011] As a further technical solution of the utility model, the fan is located on the inner side of the connecting pipe, and the fan is fixed to the rear cover plate by bolts.

[0012] As a further technical solution of the utility model, the rear cover plate is fixed to the upper cooling groove and the lower cooling groove by bolts, and the dust blocking net is fixed to the side of the upper cooling groove and the lower cooling groove away from the rear cover plate by bolts, and a plurality of air holes are opened on the dust blocking net.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the refrigerant or heat medium enters the upper cooling groove and the lower cooling groove at the same time, so that the temperature can be transferred to the fin plate from both ends, achieving a rapid transfer effect. The outer protective frame on the outside protects the delivery pipe and the output pipe to prevent the protruding delivery pipe and the output pipe from being damaged. The connecting pipe on one side not only plays a connecting role, but also protects the fan;

[0015] 2. In the utility model, the cover plate is opened to facilitate the installation of the delivery pipe and the output pipe, and after the outer protective frame is connected, it can play a role of airtight protection;

[0016] 3. In the utility model, the rear cover plate plays a connecting role and facilitates the fan to draw the inside to a negative pressure state, facilitating air entry, and the connecting pipe protects the fan which plays an important role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 This utility model Figure 1 Schematic diagram from another perspective.

[0019] Figure 3 This utility model Figure 1 Schematic diagram of the internal structure.

[0020] Figure 4 This utility model Figure 3 main view.

[0021] Figure 5 This utility model Figure 4 Sectional view at AA.

[0022] In the figure: 1-upper cooling trough, 2-lower cooling trough, 3-fin plate, 4-conveying pipe, 5-output pipe, 6-outer protective frame, 7-cover plate, 8-rear cover plate, 9-fan, 10-connecting pipe, 11-dust screen. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 In an embodiment of the utility model, a plate-fin heat exchanger with a long service life includes a lower cooling groove 2 arranged below an upper cooling groove 1, and a plurality of fin plates 3 are installed in the middle; the upper cooling groove 1 and the lower cooling groove 2 are both provided with an input port for convenient connection with a delivery pipe 4, and the upper cooling groove 1 and the lower cooling groove 2 are both provided with an output port for convenient connection with an output pipe 5; an outer protective frame 6 is arranged on the outside of the delivery pipe 4 and the output pipe 5, and a connecting pipe 10 is arranged on one side of the outer protective frame 6.

[0025] By adopting the above technical scheme, refrigerant or heat medium enters the upper cooling groove 1 and the lower cooling groove 2 at the same time, so that the temperature can be transferred to the fin plate 3 from both ends, achieving a rapid transfer effect. The outer protective frame 6 on the outside protects the delivery pipe 4 and the output pipe 5 to prevent the protruding delivery pipe 4 and the output pipe 5 from being damaged. The connecting pipe 10 on one side not only plays a connecting role, but also can protect the fan 9.

[0026] In this embodiment, the outer guard frame 6 is fixed to the upper cooling trough 1 and the lower cooling trough 2 by bolts, and a cover plate 7 is fixed to the outer guard frame 6 by bolts.

[0027] Furthermore, the cover plate 7 is provided with a circular hole for the delivery pipe 4 and the output pipe 5 to extend out, and the delivery pipe 4 and the output pipe 5 are respectively connected to the output end and the input end of the cooling tower.

[0028] By adopting the above technical solution, the cover plate 7 is opened to facilitate the installation of the delivery pipe 4 and the output pipe 5, and after the outer protective frame 6 is connected, it can play a role of airtight protection.

[0029] In this embodiment, the connecting pipe 10 is fixed to the rear cover plate 8 by bolts, and the rear cover plate 8 is provided with an installation opening for facilitating the installation of the fan 9.

[0030] Furthermore, the fan 9 is located inside the connecting pipe 10 , and the fan 9 is fixed to the rear cover plate 8 by bolts.

[0031] By adopting the above technical solution, the rear cover plate 8 plays a connecting role and facilitates the fan 9 to draw the inside to a negative pressure state, thereby facilitating air entry, and the connecting pipe 10 protects the fan 9 which plays an important role.

[0032] In this embodiment, the rear cover plate 8 is fixed to the upper cooling groove 1 and the lower cooling groove 2 by bolts, and the dust-proof net 11 is fixed to the side of the upper cooling groove 1 and the lower cooling groove 2 away from the rear cover plate 8 by bolts, and the dust-proof net 11 is provided with a plurality of air holes.

[0033] By adopting the above technical solution, the dust-blocking net 11 can prevent impurities from entering the inner side of the fan 9 and causing damage to the fan 9 .

[0034] The working principle of the utility model is as follows: the dust-proof net 11 can prevent impurities from entering the inner side of the fan 9 and causing damage to the fan 9; the refrigerant or heat medium enters the upper cooling groove 1 and the lower cooling groove 2 at the same time, so that the temperature can be transferred to the fin plate 3 from both ends, achieving the effect of rapid transfer; the outer protective frame 6 on the outer side protects the delivery pipe 4 and the output pipe 5 to prevent the protruding delivery pipe 4 and the output pipe 5 from being damaged; the connecting pipe 10 on one side plays a connecting role and can protect the fan 9 at the same time; the cover plate 7 is opened to facilitate the installation of the delivery pipe 4 and the output pipe 5, and after connecting the outer protective frame 6, it can play a closed protection role; the rear cover plate 8 plays a connecting role and facilitates the fan 9 to pump the inner side to a negative pressure state, facilitating the entry of air, and the connecting pipe 10 protects the fan 9 which plays an important role.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plate-fin heat exchanger with a long service life, characterized in that: The invention comprises a lower cooling groove (2) arranged below an upper cooling groove (1), and a plurality of fin plates (3) are installed in the middle; the upper cooling groove (1) and the lower cooling groove (2) are both provided with an input port for facilitating the connection with a delivery pipe (4), and the upper cooling groove (1) and the lower cooling groove (2) are both provided with an output port for facilitating the connection with an output pipe (5); an outer protective frame (6) is arranged outside the delivery pipe (4) and the output pipe (5), and a connecting pipe (10) is arranged on one side of the outer protective frame (6).

2. A plate-fin heat exchanger with a long service life according to claim 1, characterized in that: The outer guard frame (6) is fixed to the upper cooling trough (1) and the lower cooling trough (2) by means of bolts, and a cover plate (7) is fixed to the outer guard frame (6) by means of bolts.

3. A plate-fin heat exchanger with a long service life according to claim 2, characterized in that: The cover plate (7) is provided with a circular hole for facilitating the delivery pipe (4) and the output pipe (5) to extend out, and the delivery pipe (4) and the output pipe (5) are respectively connected to the output end and the input end of the cooling tower.

4. A plate-fin heat exchanger with a long service life according to claim 1, characterized in that: The connecting pipe (10) is fixed to the rear cover plate (8) by means of bolts, and the rear cover plate (8) is provided with an installation opening for facilitating the installation of the fan (9).

5. A plate-fin heat exchanger with a long service life according to claim 4, characterized in that: The fan (9) is located inside the connecting pipe (10), and the fan (9) is fixed to the rear cover plate (8) by means of bolts.

6. A plate-fin heat exchanger with a long service life according to claim 5, characterized in that: The rear cover plate (8) is fixed to the upper cooling groove (1) and the lower cooling groove (2) by means of bolts, and a dust blocking net (11) is fixed to the side of the upper cooling groove (1) and the lower cooling groove (2) away from the rear cover plate (8) by means of bolts, and a plurality of air holes are provided on the dust blocking net (11).

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