Plate sheet impurity removal structure of plate heat exchanger

Abstract

The utility model discloses a plate sheet impurity removal structure of a plate heat exchanger, and relates to the technical field of plate heat exchanger cleaning. The upper part of the inner wall of the cleaning box is concavely provided with a slideway, a positioning plate is movably arranged in the slideway, the end part of the notch edge of the positioning plate is provided with a chute, a sliding block is movably arranged in the chute, the outer side of the sliding block is fixedly provided with a clamping piece, and one side, far away from the notch edge, of the positioning plate is movably provided with a bottom plate; a brush is arranged on the inner side of the bottom plate on the lower portion of the positioning plate, a connecting piece is fixed on the inner side of the bottom plate on the upper portion of the positioning plate, one end of a screw is fixed inside the connecting piece, an output shaft of a motor is fixed at the other end of the screw, and the motor is fixed at one end of the upper side of the positioning plate. According to the plate cleaning device, the clamping piece capable of being movably adjusted is arranged to fix a plate, the brush moving in a reciprocating mode is matched with the cleaning liquid in the cleaning box to clean the side face of the plate, impurity removal and cleaning of the plate are achieved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning of plate type heat exchangers, in particular to a plate sheet impurity removal structure of a plate type heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of heat exchanger made of thin metal plates pressed into heat exchange plates with a certain corrugated shape, then stacked and fastened with clamps and bolts. The fluid flows through the narrow and tortuous channel formed between the two plates. The cold and hot fluids pass through the flow channel in turn, and there is a barrier plate in the middle to separate the fluids, and heat exchange is carried out through this plate.

[0003] When removing impurities from the pipeline, flushing with water in the opposite direction of the medium flow can flush out the impurities. After long-term use, the plates will have a certain amount of sediment and scaling, which will affect the heat exchange effect. Simple blowing and flushing cannot completely remove the impurities, so it is necessary to disassemble and clean it regularly. When disassembling and cleaning, the heat exchanger should be disassembled and the dirt on the surface of the plates should be washed away. It can also be washed with non-corrosive chemical cleaning agents.

[0004] However, the current plate cleaning mostly adopts manual flushing, which is inefficient and insufficient in practicality. Therefore, the utility model proposes a plate heat exchanger plate impurity removal structure to achieve improvement on the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a plate heat exchanger plate debris removal structure, the plate is fixed by a movably adjustable clamping piece, and the side of the plate is cleaned by a reciprocating brush in conjunction with the cleaning liquid in the cleaning box, thereby solving the problems of low efficiency and insufficient practicality of the existing plate debris removal method.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a plate-type heat exchanger plate impurity removal structure, comprising a cleaning box, a slideway is provided in a depression on the upper inner wall of the cleaning box, a positioning plate is movably provided in the slideway, a slide groove is provided at the end of the notch edge of the positioning plate, a slider is movably provided in the slide groove, a clamping piece is fixed on the outer side of the slider, a bottom plate is movably provided on the side of the positioning plate away from the notch edge, a brush is provided on the inner side of the bottom plate located at the lower part of the positioning plate, a connecting piece is fixed on the inner side of the bottom plate located at the upper part of the positioning plate, one end of a screw is fixed inside the connecting piece, the other end of the screw is fixed to the output shaft of a motor, and the motor is fixed to one end of the upper side of the positioning plate.

[0008] Furthermore, the notch edges of the two positioning plates are arranged opposite to each other, and the brushes located at the lower sides of the positioning plates are arranged in a staggered manner.

[0009] Furthermore, a rubber pad is bonded to the inner side of the clamping member, and a plate of a plate type heat exchanger is clamped and fixed between the clamping members in parallel.

[0010] Furthermore, a tightening knob is fixed on the upper side of the sliding block, and a threaded end of the tightening knob passes through the end of the positioning plate.

[0011] Furthermore, the bottom protrusion of the connecting member is slidably embedded in a limiting groove arranged on the upper side of the positioning plate.

[0012] Furthermore, a mounting frame is fixed to the middle of the outer side of the cleaning box, a heater is arranged at the bottom of the side of the cleaning box, a sedimentation bin is arranged at the bottom of the cleaning box, and a drainage bin is arranged at the bottom of the sedimentation bin.

[0013] The utility model has the following beneficial effects:

[0014] The utility model fixes the plate by arranging a movable and adjustable clamping piece, and cleans the side of the plate by a reciprocating brush in cooperation with the cleaning liquid in the cleaning box, thereby achieving impurity removal and cleaning of the plate and improving the cleaning efficiency;

[0015] Specifically, when removing debris and cleaning, the heat exchanger is disassembled, the plates are removed, the dirt on the surface is cleaned, and several plates are clamped and fixed by clamps. Then, water or non-corrosive chemical reagents are added to the cleaning box, and the motor is started. Under the transmission action of the output shaft of the motor, the screw drives the connecting part to move in a straight line, so that the bottom plate and the brush that move synchronously with the connecting part move at the same time. When the brush moves, it continuously rubs against the surface of the plate to achieve the removal of debris and cleaning of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the bottom of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of one side of the positioning plate in the utility model;

[0020] Figure 4 It is a schematic diagram of the installation structure of the other side of the positioning plate in the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Cleaning box; 2. Mounting frame; 3. Heater; 4. Slide; 5. Positioning plate; 6. Clamping piece; 7. Sedimentation bin; 8. Drainage bin; 9. Tightening knob; 10. Motor; 11. Screw; 12. Connector; 13. Bottom plate; 14. Brush. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-4 As shown, the utility model is a plate-type heat exchanger plate impurity removal structure, comprising a cleaning box 1, a slide 4 is recessed on the upper inner wall of the cleaning box 1, a positioning plate 5 is movably arranged in the slide 4, a slide groove is arranged at the end of the notch edge of the positioning plate 5, a slider is movably arranged in the slide groove, a clamping member 6 is fixed on the outside of the slider, a bottom plate 13 is movably arranged on the side of the positioning plate 5 away from the notch edge, a brush 14 is arranged on the inner side of the bottom plate 13 located at the lower part of the positioning plate 5, a connecting member 12 is fixed on the inner side of the bottom plate 13 located at the upper part of the positioning plate 5, one end of a screw 11 is fixed inside the connecting member 12, the other end of the screw 11 is fixed with the output shaft of a motor 10, and the motor 10 is fixed to one end of the upper side of the positioning plate 5;

[0025] It should be noted that: in the plate heat exchanger plate impurity removal structure involved in the present application, the plate is fixed by setting a movable and adjustable clamping member 6, and the side of the plate is cleaned by a reciprocating brush 14 in cooperation with the cleaning liquid in the cleaning box 1, so as to realize the impurity removal and cleaning of the plate and improve the cleaning efficiency. After the plate heat exchanger is used for a long time, there will be a certain amount of sediment and scaling on the plate, which will affect the heat exchange effect. Therefore, it is necessary to disassemble and clean the impurities regularly. When disassembling and cleaning, the heat exchanger is disassembled, the plate is removed, and the surface dirt is cleaned. In the specific operation, several plates are clamped and fixed by the clamping member 6. Then, water or non-corrosive chemical reagents are added to the cleaning box 1, and the motor 10 is started. Under the transmission action of the output shaft of the motor 10, the screw 11 drives the connecting piece 12 to move in a straight line, so that the bottom plate 13 and the brush 14 that move synchronously with the connecting piece 12 move at the same time. When the brush 14 moves, it continuously rubs against the surface of the plate to achieve impurity removal and cleaning of the plate. The positioning plate 5 can also move relative to the slide groove. When the position of the positioning plate 5 needs to be fixed, the positioning plate 5 is fixed to the side of the cleaning box 1 by an external bolt structure. The principle is the same as that of the tightening knob 9.

[0026] Among them Figure 1As shown, the notched edges of the two positioning plates 5 are arranged opposite to each other, and the brushes 14 located at the lower side of the positioning plates 5 are arranged in a staggered manner; a rubber pad is bonded to the inner side of the clamping member 6, and a plate of a plate heat exchanger is clamped and fixed between the clamping members 6 in parallel;

[0027] It should be noted that the notch of the positioning plate 5 is used for the movement of the clamping member 6, which is convenient for clamping and fixing heat exchange plates of different thicknesses. In actual use, the plates are linearly arranged between the two clamping members 6, and then the clamping member 6 is moved until the rubber pad bonded to the inside of the clamping member 6 is tightly in contact with the side of the plate. After being fixed, the side of the plate also contacts the brush 14. The brush 14 here needs to be a soft brush to avoid damaging the surface coating of the plate.

[0028] Among them Figure 2 As shown, a mounting frame 2 is fixed to the middle of the outer side of the cleaning box 1, and a heater 3 is provided at the bottom of the side of the cleaning box 1, a sedimentation bin 7 is provided at the bottom of the cleaning box 1, and a drainage bin 8 is provided at the bottom of the sedimentation bin 7;

[0029] It should be noted that: the mounting frame 2 is connected to the external supporting structure, which is used to support the cleaning box 1. The heating end of the heater 3 arranged on the side of the cleaning box 1 is located inside the cleaning box 1, and is responsible for heating the solution inside the cleaning box 1, so as to facilitate the plate to avoid the dissolution of stains. The heater 3 adopts resistance heating, and its technical principle is relatively conventional, which is not described in detail here. After the solid impurities on the surface of the plate are cleaned, they are gradually deposited into the sedimentation bin 7 under the action of gravity. After the surface of the plate is cleaned, the discharge bin 8 is opened to discharge the solid-liquid mixture in the cleaning box 1 and rinse it.

[0030] Among them Figure 3 and Figure 4 As shown, a tightening knob 9 is fixed on the upper side of the slider, and the threaded end of the tightening knob 9 passes through the end of the positioning plate 5; the bottom protrusion of the connecting member 12 is slidably embedded in the limiting groove provided on the upper side of the positioning plate 5;

[0031] It should be noted that the tightening knob 9 is used to fix the position of the slider. After tightening the tightening knob 9, the tightening knob 9 contacts the end of the positioning plate 5. Under the action of friction damping, the position of the tightening knob 9 is fixed, so that the position of the slider relative to the slide rail is fixed. On the contrary, after loosening the tightening knob 9, the slider loses its constraint and can move along the slide groove under the action of external force. It is used to adjust the position of the clamping member 6 that moves synchronously with the slider relative to the positioning plate 5. When the output shaft of the motor 10 drives the screw 11 to rotate, in order to prevent the connecting member 12 from rotating under the action of the screw 11, the limiting groove opened on the upper side of the positioning plate 5 is used to limit the connecting member 12, while not affecting the movement of the connecting member 12 along the screw 11. Here, the connection between the screw 11 and the connecting member 12 is similar to the ball screw structure, and its driving principle is relatively conventional, so it is not further described in detail here.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, as well as any modification, equivalent replacement and improvement made, shall fall within the protection scope of the present invention.

Claims

1. A plate heat exchanger plate impurity removal structure, comprising a cleaning box (1), characterized in that: The cleaning box (1) is provided with a slideway (4) in a recessed manner on the upper inner wall, a positioning plate (5) is movably provided in the slideway (4), a slide groove is provided at the end of the notch edge of the positioning plate (5), a slider is movably provided in the slide groove, a clamping member (6) is fixed on the outer side of the slider, a bottom plate (13) is movably provided on the side of the positioning plate (5) away from the notch edge, a brush (14) is provided on the inner side of the bottom plate (13) located at the lower part of the positioning plate (5), a connecting member (12) is fixed on the inner side of the bottom plate (13) located at the upper part of the positioning plate (5), one end of a screw rod (11) is fixed inside the connecting member (12), the other end of the screw rod (11) is fixed with the output shaft of a motor (10), and the motor (10) is fixed to one end of the upper side of the positioning plate (5).

2. A plate heat exchanger plate impurity removal structure according to claim 1, characterized in that: The notch edges of the two positioning plates (5) are arranged opposite to each other, and the brushes (14) located at the lower sides of the positioning plates (5) are arranged in a staggered manner.

3. A plate heat exchanger plate impurity removal structure according to claim 1, characterized in that: A rubber pad is bonded to the inner side of the clamping piece (6), and a plate of a plate heat exchanger is clamped and fixed between the clamping pieces (6) in parallel.

4. A plate heat exchanger plate impurity removal structure according to claim 1, characterized in that: A tightening knob (9) is fixed on the upper side of the sliding block, and a threaded end of the tightening knob (9) passes through the end of the positioning plate (5).

5. The plate impurity removal structure of a plate type heat exchanger according to claim 1, characterized in that: The bottom protrusion of the connecting member (12) is slidably embedded in a limiting groove arranged on the upper side of the positioning plate (5).

6. A plate heat exchanger plate impurity removal structure according to claim 1, characterized in that: A mounting frame (2) is fixed to the middle of the outer side of the cleaning box (1), a heater (3) is arranged at the bottom of the side of the cleaning box (1), a sedimentation bin (7) is arranged at the bottom of the cleaning box (1), and a drainage bin (8) is arranged at the bottom of the sedimentation bin (7).

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