A plate heat exchanger for SCR treatment of industrial flue gas

Abstract

The utility model discloses a plate heat exchanger for industrial flue gas SCR treatment, and relates to the field of plate heat exchangers. The device comprises a lower guide rod, an upper guide rod, a plate arranged between the lower guide rod and the upper guide rod, and a fixed splint and a movable splint for clamping and fixing the plate, a plurality of groups of connecting pipes are arranged at one end of the fixed splint, and a locking piece is arranged between the movable splint and the fixed splint. The plate heat exchanger for industrial flue gas SCR treatment can first locate the position between the fixed splint and the movable splint through the positioning mechanism, and then, with the assistance of the elastic component, the movable splint is tightly fitted in the direction of the fixed splint under the action of an external force, so that when the fixed splint and the movable splint are locked by the locking piece later, the position of the movable splint will not be offset, so as to ensure the accuracy of the installation position of the plate between the movable splint and the fixed splint.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger used for SCR treatment of industrial flue gas. Background Art

[0002] In the existing technology, impurities in industrial flue gas are purified through denitrification technology. During the denitrification process, industrial flue gas will carry a large amount of heat and directly discharge the hot air into the external environment, which will cause the temperature in the external environment to rise and affect the temperature comfort of the industrial site.

[0003] At present, plate heat exchangers are used to perform heat exchange and cooling operations on the flue gas after denitrification technology. The plate heat exchanger is mainly operated by multiple groups of plates arranged therein, and the multiple groups of plates are mainly fixed on the plate heat exchanger by fixed clamps and movable clamps, and the fixed clamps and the movable clamps are locked by locking parts.

[0004] However, in the process of locking the fixed splint and the movable splint, a group of locking parts are needed to connect and lock multiple different parts in turn. Therefore, when locking one part, the other parts of the fixed splint and the movable splint are in a loosely connected state. At this time, the clamping force of the fixed splint and the movable splint on each position of the plate is different, which makes the force on each position of the plate uneven, resulting in looseness between multiple groups of plates. The movable splint is also prone to position displacement, which makes the movable splint and the plate not fit tightly, and then the fixed splint and the movable splint cannot clamp multiple groups of plates, resulting in air leakage between the plates in the later stage. In view of the above problems, we propose a plate heat exchanger for SCR treatment of industrial flue gas. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a plate heat exchanger which solves the problem that during the locking process of the fixed splint and the movable splint, the movable splint is prone to movement, resulting in a loose fit between the movable splint and the plate, causing air leakage between the plates, and other problems.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a plate heat exchanger for industrial flue gas SCR treatment, comprising a lower guide rod, an upper guide rod, a plate arranged between the lower guide rod and the upper guide rod, and a fixed clamping plate and a movable clamping plate for clamping and fixing the plate, a positioning mechanism is arranged between the fixed clamping plate and the movable clamping plate, and the positioning mechanism comprises:

[0007] A clamping plate is rotatably connected to the fixed clamping plate, and an outer wall of one end of the clamping plate is clamped and arranged inside the movable clamping plate;

[0008] A positioning member, which is slidably arranged on the outer wall of the clamping plate, and is used for positioning and connecting the fixed clamping plate and the movable clamping plate before locking;

[0009] The elastic component is connected to the positioning member, and the positioning member is changed in position relative to the clamping plate through the elastic component.

[0010] Preferably, a connecting shaft is provided on the inner wall of the fixing clamping plate, and one end of the clamping plate is sleeved on the outer wall of the connecting shaft.

[0011] Preferably, the outer wall of the movable clamping plate is provided with a clamping groove for limiting the clamping plate.

[0012] Preferably, the elastic component comprises:

[0013] A groove is provided on the outer wall of the card plate, and one end of the positioning member is slidably disposed inside the groove;

[0014] The spring is arranged inside the groove, and two ends of the spring are respectively connected to the inner wall of the groove and the outer wall of the positioning member.

[0015] Preferably, the inner wall of the groove is provided with a limiting rod for limiting the movement of the spring, and one end of the positioning member located on the inner wall of the groove is sleeved on the outer wall of the limiting rod.

[0016] Preferably, a handle is provided on the outer wall of one end of the positioning member close to the spring.

[0017] Preferably, a plurality of connecting pipes are provided at one end of the fixed splint, and a locking piece is provided between the movable splint and the fixed splint.

[0018] The utility model discloses a plate heat exchanger for industrial flue gas SCR treatment, which has the following beneficial effects: the plate heat exchanger for industrial flue gas SCR treatment can first locate the position between the fixed clamping plate and the movable clamping plate through the arranged positioning mechanism, and then, with the assistance of the elastic component, the movable clamping plate is tightly fitted toward the fixed clamping plate under the action of external force, so that when the fixed clamping plate and the movable clamping plate are locked by the locking member at a later stage, the position of the movable clamping plate will not be offset, so as to ensure the accuracy of the installation position of the plate between the movable clamping plate and the fixed clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fixed splint, the movable splint and the positioning member of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the card plate, positioning plate and card slot of the utility model;

[0023] Figure 4 For this utility model Figure 1 A magnified view of the structure at center;

[0024] Figure 5 This is a schematic diagram of the positioning member and spring structure of the utility model.

[0025] In the figure, 1. lower guide rod; 101. upper guide rod; 102. fixed splint; 103. movable splint; 104. connecting pipe; 105. locking piece; 2. plate; 3. positioning mechanism; 301. connecting shaft; 302. clamping plate; 303. positioning piece; 304. clamping slot; 305. elastic component; 3051. groove; 3052. limiting rod; 3053. spring; 306. handle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] The embodiment of the present application provides a plate heat exchanger to solve the problem that during the locking process of the fixed splint and the movable splint, the movable splint is prone to move, resulting in a loose fit between the movable splint and the plate, causing air leakage between the plates, and the like, and achieves positioning of the fixed splint and the movable splint before locking.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model embodiment discloses a plate heat exchanger for SCR treatment of industrial flue gas.

[0030] According to the attached Figure 1-5As shown, it includes a lower guide rod 1, an upper guide rod 101, a plate 2 arranged between the lower guide rod 1 and the upper guide rod 101, and a fixed splint 102 and a movable splint 103 for clamping and fixing the plate 2. The fixed splint 102 is fixedly connected to one end of the lower guide rod 1, and the movable splint 103 is slidably arranged between the lower guide rod 1 and the upper guide rod 101. One end of the fixed splint 102 is provided with multiple groups of connecting pipes 104, and a locking piece 105 is arranged between the movable splint 103 and the fixed splint 102. The locking piece 105 is composed of a screw and a nut, which can lock the fixed splint 102 and the movable splint 103, so that multiple groups of plates 2 are firmly clamped between the fixed splint 102 and the movable splint 103.

[0031] The lower guide rod 1, the upper guide rod 101, the plate 2, the fixed splint 102, the movable splint 103 and multiple groups of connecting pipes 104 and other components constitute a plate heat exchanger of model BR. When in use, after the flue gas in industrial production is denitrated, the flue gas can be transported to the plate heat exchanger through a pipe body connected to a group of connecting pipes 104, so that the flue gas enters the channel formed between the multiple groups of plates 2, and then heat is exchanged through the plates 2. The operation of the plate heat exchanger can refer to the patent [CN216668392U], which is specifically a plate heat exchanger.

[0032] A positioning mechanism 3 is provided between the fixed splint 102 and the movable splint 103, that is, before the fixed splint 102 and the movable splint 103 are locked, the connection position between the fixed splint 102 and the movable splint 103 is first positioned to avoid position displacement of the fixed splint 102 and the movable splint 103 when being fixed. The positioning mechanism 3 includes a clamping plate 302, which is rotatably connected to the fixed splint 102. A connecting shaft 301 is provided on the inner wall of the fixed splint 102, one end of the clamping plate 302 is sleeved on the outer wall of the connecting shaft 301, and a clamping groove 304 for limiting the clamping of the clamping plate 302 is provided on the outer wall of the movable splint 103. A positioning member 303 is slidably provided on the outer wall of the clamping plate 302, and the positioning member 303 is used for the positioning connection between the fixed splint 102 and the movable splint 103 before being locked.

[0033] The elastic component 305 is connected to the positioning member 303, and the positioning member 303 changes its position relative to the card plate 302 through the elastic component 305. The elastic component 305 includes a groove 3051, and the groove 3051 is opened on the outer wall of the card plate 302. One end of the positioning member 303 is slidably set in the groove 3051, and the spring 3053 is set in the groove 3051. The two ends of the spring 3053 are respectively connected to the inner wall of the groove 3051 and the outer wall of the positioning member 303. The inner wall of the groove 3051 is provided with a limit rod 3052 for limiting the movement of the spring 3053. One end of the positioning member 303 located on the inner wall of the groove 3051 is sleeved on the outer wall of the limit rod 3052, and the outer wall of the positioning member 303 close to the spring 3053 is provided with a handle 306.

[0034] The plate heat exchanger used for industrial flue gas SCR treatment can first locate the position between the fixed clamping plate 102 and the movable clamping plate 103 through the positioning mechanism 3, and then, with the assistance of the elastic component 305, the movable clamping plate 103 is tightly fitted toward the fixed clamping plate 102 under the action of external force, so that when the fixed clamping plate 102 and the movable clamping plate 103 are locked by the locking member 105 later, the position of the movable clamping plate 103 will not be offset, so as to ensure the accuracy of the installation position of the plate 2 between the movable clamping plate 103 and the fixed clamping plate 102.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plate heat exchanger for SCR treatment of industrial flue gas, comprising a lower guide rod (1), an upper guide rod (101), a plate (2) arranged between the lower guide rod (1) and the upper guide rod (101), and a fixed clamping plate (102) and a movable clamping plate (103) for clamping and fixing the plate (2), characterized in that: A positioning mechanism (3) is provided between the fixed clamping plate (102) and the movable clamping plate (103), and the positioning mechanism (3) comprises: A clamping plate (302) is rotatably connected to the fixed clamping plate (102), and an outer wall of one end of the clamping plate (302) is clamped and arranged inside the movable clamping plate (103); A positioning member (303) is slidably disposed on the outer wall of the clamping plate (302), and the positioning member (303) is used for positioning and connecting the fixed clamping plate (102) and the movable clamping plate (103) before locking; The elastic component (305) is connected to the positioning member (303), and the positioning member (303) is moved relative to the clamping plate (302) through the elastic component (305).

2. A plate heat exchanger for industrial flue gas SCR treatment according to claim 1, characterized in that: The inner wall of the fixed clamping plate (102) is provided with a connecting shaft (301), and one end of the clamping plate (302) is sleeved on the outer wall of the connecting shaft (301).

3. The plate heat exchanger for industrial flue gas SCR treatment according to claim 1, characterized in that: The outer wall of the movable clamping plate (103) is provided with a clamping groove (304) for limiting the clamping of the clamping plate (302).

4. The plate heat exchanger for industrial flue gas SCR treatment according to claim 1, characterized in that: The elastic component (305) comprises: A groove (3051) is provided on the outer wall of the clamping plate (302), and one end of the positioning member (303) is slidably disposed inside the groove (3051); The spring (3053) is arranged inside the groove (3051), and the two ends of the spring (3053) are respectively connected to the inner wall of the groove (3051) and the outer wall of the positioning member (303).

5. The plate heat exchanger for industrial flue gas SCR treatment according to claim 4, characterized in that: The inner wall of the groove (3051) is provided with a limiting rod (3052) for limiting the movement of the spring (3053), and one end of the positioning member (303) located on the inner wall of the groove (3051) is sleeved on the outer wall of the limiting rod (3052).

6. The plate heat exchanger for industrial flue gas SCR treatment according to claim 5, characterized in that: A handle (306) is provided on the outer wall of one end of the positioning member (303) close to the spring (3053).

7. The plate heat exchanger for industrial flue gas SCR treatment according to claim 1, characterized in that: One end of the fixed clamping plate (102) is provided with a plurality of connection pipes (104), and a locking piece (105) is provided between the movable clamping plate (103) and the fixed clamping plate (102).

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