Rotary scrubbing and cleaning device for biological dirt in gaps of plate heat exchanger

Abstract

The invention discloses a rotary scrubbing and cleaning device for biological dirt in gaps of a plate heat exchanger, and relates to the technical field of plate heat exchanger cleaning equipment.The rotary scrubbing and cleaning device comprises a protective outer cylinder, and a storage box is fixedly connected to the interior of the protective outer cylinder. The control panel can be installed on the outer side of the protective outer cylinder and can also be installed in a place where operation is convenient to control, so that all electrical equipment is controlled in a unified mode, it is guaranteed that the cleaning brush can cover the inner wall of a flow channel and all gaps of all plate pieces, the dead angle situation existing in the cleaning process is reduced, and the cleaning efficiency is improved. A sealing ring and a sealing disc are installed between a protective outer cylinder and a first connecting side plate to achieve the connecting and sealing effects, an auxiliary pressing plate and a spring are connected in a reinforced mode through a positioning bolt, and in order to guarantee normal supporting of the inner wall of the plate heat exchanger, a limiting groove matched with the positioning bolt for installation is formed in the auxiliary pressing plate; therefore, it is guaranteed that the positioning bolts can slide into the corresponding auxiliary pressing plates.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate heat exchanger cleaning equipment, in particular to a rotary brush cleaning device for biological fouling in the gap of a plate heat exchanger. BACKGROUND

[0002] As the core heat exchange equipment in the industrial field of power plant main engine lubricating oil system, the heat exchange efficiency of the plate heat exchanger directly affects the economy and safety of the unit operation. In the application of seawater as the cooling medium, the water side flow passage is easily blocked and contaminated by impurities such as shells, marine organisms and silt in seawater. These impurities, especially hard shell organisms, are easily jammed in the narrow gap between the heat exchanger plates, forming stubborn biological fouling, which seriously hinders heat exchange, leading to a significant decrease in heat exchange efficiency, an increase in oil temperature, and a threat to the safe operation of the main engine.

[0003] Currently, the cleaning of such fouling mainly relies on manual methods, i.e., frequent disassembly of pipelines and heat exchanger end covers, and high-pressure water gun flushing or physical scraping.

[0004] Chinese Patent No. CN 217017668 U discloses a cleaning device suitable for internal cleaning of a plate heat exchanger, which comprises a main body, a cleaning tank is formed on the main body, a heating rod is fixedly installed inside the cleaning tank, a temperature detection device and an acidity detection device are fixedly installed on the inner wall of the cleaning tank, a water level monitoring device is arranged on the inner wall of the cleaning tank, an acid liquid discharge port is longitudinally formed in the main body and communicates with a chemical liquid storage box, a water inlet is transversely formed in the main body and communicates with the acid liquid discharge port, the water inlet communicates with the cleaning tank, a stirring device is arranged inside the water inlet, a water outlet pipe communicating with the cleaning tank is fixedly installed on the main body, electromagnetic valves are installed inside the water inlet, the water outlet pipe and the acid liquid discharge port, and a PLC controller is fixedly installed on the main body. The cleaning device suitable for internal cleaning of the plate heat exchanger in the present application is controlled by the PLC controller, which can accurately control the water temperature and acidity.

[0005] However, the above-mentioned scheme still has the following problems:

[0006] The operation cycle is long, the overall equipment maintenance is difficult, and the equipment use flexibility is low;

[0007] For hard dirt such as shells stuck in the deep gap of the plate, the high-pressure water gun often cannot completely remove it, and the cleaning effect is not ideal, increasing the labor intensity of manual cleaning;

[0008] Directly carrying out the scraping operation is easy to damage the corrugated or coating surface of the plate, affect the heat exchange performance and shorten the service life of the heat exchanger, bring many inconveniences, so it cannot meet the needs of normal use, therefore the present application needs to design a kind of plate heat exchanger gap biological fouling rotary brush cleaning device to solve the above problems. SUMMARY

[0009] The present application aims to provide a kind of plate heat exchanger gap biological fouling rotary brush cleaning device, which can efficiently and thoroughly clean the plate gap dirt, without damaging the plate, and reduce the labor intensity of manual cleaning, to solve the problem of plate heat exchanger gap biological fouling in power plant operation and maintenance.

[0010] To achieve the above object, the present application provides the following technical scheme: a kind of plate heat exchanger gap biological fouling rotary brush cleaning device, including protective outer cylinder:

[0011] The inside of the protective outer cylinder is fixedly connected with a storage tank, the two sides of the storage tank are fixedly connected with a second connecting pipe, the two sides of the second connecting pipe are fixedly connected with a conveying pipe, the conveying pipe is fixedly connected with a liquid outlet pipe extending to the outside of the protective outer cylinder, the outside of the protective outer cylinder is fixedly connected with a first fixed seat distributed at equal intervals, the inside of the first fixed seat is rotatably connected with a second rotating connecting plate, the inside of the second rotating connecting plate is installed with a mounting frame, the inside of the mounting frame is installed with a supporting track, and the supporting track is used to assist the support of the inner wall of the heat exchanger, so as to carry out subsequent liquid outlet and cleaning operation;

[0012] One end of the protective outer cylinder is fixedly connected with a second connecting side plate, the side of the second connecting side plate away from the protective outer cylinder is fixedly connected with a positioning sleeve, the outside of the positioning sleeve is fixedly connected with a spring distributed at equal intervals, the outside of the spring is installed with an auxiliary pressing plate, and the side of the positioning sleeve away from the second connecting side plate is fixedly connected with a first connecting side plate;

[0013] The side of the first connecting side plate away from the protective outer cylinder is installed with a fixed column, the outside of the fixed column is installed with an auxiliary cleaning mechanism, the auxiliary cleaning mechanism includes a positioning frame distributed at equal intervals, the inside of the positioning frame is rotatably connected with a mounting roller, and the outside of the mounting roller is sleeved with a cleaning brush.

[0014] As a preferred embodiment of the present application, the other end of the protective outer cylinder is installed with a first connecting pipe, one end of the first connecting pipe extends to the inside of the protective outer cylinder and is fixedly connected with one of the conveying pipes.

[0015] As a preferred embodiment of the present application, the inside of the protective outer cylinder and away from the side of the storage tank is fixedly connected with a second driving motor, the output end of the second driving motor is fixedly connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a fixed sleeve plate, the outer side of the fixed sleeve plate is fixedly connected with equidistantly distributed second fixing seats, the inside of the second fixing seats is rotatably connected with first rotating connecting plates, one side of the first rotating connecting plates is rotatably connected with the mounting frame, so as to perform secondary limiting treatment on the mounting frame.

[0016] As a preferred embodiment of the present application, the inside of the fixed column is fixedly connected with equidistantly distributed electric telescopic rods, the output ends of the electric telescopic rods are fixedly connected with corresponding positioning frames, the inside of the fixed column is provided with a storage battery used in cooperation with the electric telescopic rods, the electric power resources are provided for the operation of the plurality of electric telescopic rods through the storage battery, and the outer sides of the electric telescopic rods and the first driving motor are coated with waterproof paint, so as to prolong the service life of the equipment.

[0017] As a preferred embodiment of the present application, the outer side of the positioning frame and located on one side of the electric telescopic rod is fixedly connected with a motor mounting plate, the outer side of the motor mounting plate is fixedly connected with a first driving motor, the output end of the first driving motor is fixedly connected with a driving rotating wheel, the outer side of the driving rotating wheel is sleeved with a transmission belt, the inside of the transmission belt and away from the side of the driving rotating wheel is rotatably connected with a driven rotating wheel, the driven rotating wheel is in transmission connection with the driving rotating wheel through the transmission belt, the shaft center of the driven rotating wheel is fixedly connected with a connecting shaft extending into the inside of the positioning frame, one end of the connecting shaft is fixedly connected with a corresponding mounting roller, when the first driving motor operates, the driving rotating wheel is driven to rotate, under the transmission of the transmission belt, the driven rotating wheel is driven to rotate, through the connection of the connecting shaft, the mounting roller in the inside of the positioning frame is driven to rotate, and the gap in the inside of the plate heat exchanger is cleaned under the assistance of the cleaning brush.

[0018] As a preferred embodiment of the present application, the outer side of the liquid outlet pipeline is fixedly connected with a second valve, the outer side of the first connecting pipeline is fixedly connected with a first valve, the first valve is used for controlling the opening and closing of the first connecting pipeline, so as to guarantee that the cleaning water or solution can be accessed from the outside, and the second valve is used for controlling the opening and closing of the corresponding liquid outlet pipeline, so as to guarantee that the liquid outlet can be used for assisting the subsequent brush cleaning when the inside of the plate heat exchanger is cleaned.

[0019] As a preferred embodiment of the present application, the outside of the protective outer cylinder is provided with a control panel, the first valve, the second valve, the electric telescopic rod, the first driving motor and the second driving motor are electrically connected with the control panel, the control panel is used for controlling the operation of the first valve, the second valve, the electric telescopic rod, the first driving motor and the second driving motor, and the unified management of the power equipment is realized.

[0020] As a preferred embodiment of the present application, the first connecting side plate and the protective outer cylinder are provided with a sealing ring and a sealing disc, one side of the sealing ring is fixedly connected with the first connecting side plate, the sealing disc is fixedly connected with the sealing ring, and the side of the sealing disc away from the sealing ring is fixedly connected with the protective outer cylinder, thereby achieving the connection and sealing effect by installing the sealing ring and the sealing disc between the protective outer cylinder and the first connecting side plate.

[0021] As a preferred embodiment of the present application, the outer side of the auxiliary pressing plate is threadedly connected with a positioning bolt corresponding to the spring limiting, the inside of the spring is fixedly connected with a shock absorber, and the outer side of the positioning sleeve is provided with a spring mounting installation groove, the plate heat exchanger inner wall is assisted and supported by the plurality of auxiliary pressing plates, the auxiliary pressing plate and the spring are reinforced and connected by the positioning bolt, the use stability of the equipment is improved, and in order to normally support the plate heat exchanger inner wall, the limiting groove corresponding to the positioning bolt installation is arranged in the auxiliary pressing plate, so that the positioning bolt can be slid into the inside of the corresponding auxiliary pressing plate.

[0022] As a preferred embodiment of the present application, the structure of the auxiliary pressing plate is an L-shaped structure, the outer side of the positioning sleeve is provided with equidistantly distributed installation grooves corresponding to the auxiliary pressing plate mounting, and one side of the auxiliary pressing plate is rotationally connected with the positioning sleeve in the installation groove through a hinge shaft, so that the buffering protection effect of the spring and the shock absorber can be achieved when supporting the plate heat exchanger inner wall, the spring and the shock absorber change in form according to the specification change of the plate heat exchanger inner wall, and the service life of the equipment is prolonged.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] This invention features a protective outer cylinder, a first connecting side plate, and an auxiliary cleaning mechanism. During use, the control panel can be installed outside the protective outer cylinder or in a convenient location for operation, allowing for unified control of all electrical equipment. The entire device is inserted into the water-side interface of the plate heat exchanger. The positioning sleeve at the front of the device enters the flow channel first. The soft bristles penetrate deep into the gaps between the plates, effectively peeling and sweeping away hard debris such as seashells embedded within. Simultaneously, the first valve is opened, allowing external cleaning water to enter through the first connecting pipe and flow into the delivery pipe. The second valve is then opened, and the water is finally sprayed through the outlet pipe onto the cleaning area. The rinsing water flow... The brushed-off dirt is promptly flushed away to prevent secondary sedimentation, while the wastewater is discharged from the other end of the heat exchanger with the water flow. To achieve comprehensive cleaning of the entire circumference of the flow channel and ensure that the cleaning brush can cover every part of the inner wall of the flow channel and all the gaps between the plates, reducing dead corners during cleaning, a sealing ring and a sealing plate are installed between the protective outer cylinder and the first connecting side plate to achieve a connection and sealing effect. The auxiliary pressure plate and spring are reinforced by positioning bolts, which improves the stability of the equipment. In order to ensure normal support for the inner wall of the plate heat exchanger, the auxiliary pressure plate has a limiting groove inside to match the positioning bolts, thereby ensuring that the positioning bolts can slide into the corresponding auxiliary pressure plate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a rotary brush cleaning device for removing biological fouling from the gaps of a plate heat exchanger according to the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the overall structure of a rotary brush cleaning device for removing biological fouling from the gaps of a plate heat exchanger according to the present invention. Figure 2 ;

[0027] Figure 3 This is an enlarged schematic diagram of the auxiliary cleaning mechanism of a rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to the present invention.

[0028] Figure 4 This is an enlarged view of the internal structure of the protective outer cylinder of a rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger, according to the present invention.

[0029] Figure 5 This invention relates to a rotary brushing cleaning device for removing biological fouling from the gaps of a plate heat exchanger. Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0030] Figure 6 This invention relates to a rotary brushing cleaning device for removing biological fouling from the gaps of a plate heat exchanger. Figure 4 Enlarged schematic diagram of the structure at point B in the diagram.

[0031] In the picture:

[0032] 1, protective outer cylinder; 11, first valve; 12, first connecting pipeline; 13, first fixed seat; 14, limiting groove; 15, liquid outlet pipeline; 16, second valve; 17, mounting frame; 18, supporting track;

[0033] 2, first connecting side plate; 21, second connecting side plate; 22, sealing ring; 23, sealing disc; 24, positioning sleeve; 25, mounting groove; 26, auxiliary pressing plate; 27, spring; 28, shock absorber; 29, positioning bolt;

[0034] 3, fixed column; 31, electric telescopic rod; 32, positioning frame; 33, mounting roller; 34, cleaning brush; 35, first driving motor; 36, transmission belt; 37, driven rotating wheel; 38, driving rotating wheel; 39, motor mounting plate;

[0035] 4, connecting shaft;

[0036] 5, storage box; 51, conveying pipeline; 52, second connecting pipeline; 53, second driving motor; 54, rotating rod; 55, fixed sleeve plate; 56, second fixed seat; 57, first rotating connecting plate; 58, second rotating connecting plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] Please refer to Figures 1-6 The present application provides a technical solution: a rotating brush cleaning device for gap biological fouling of plate heat exchanger, comprising a protective outer cylinder 1, the inside of the protective outer cylinder 1 is fixedly connected with a storage box 5, both sides of the storage box 5 are fixedly connected with second connecting pipelines 52, one side of the two second connecting pipelines 52 is fixedly connected with conveying pipelines 51, one side of the conveying pipelines 51 is fixedly connected with liquid outlet pipelines 15 extending to the outside of the protective outer cylinder 1, the outside of the protective outer cylinder 1 is fixedly connected with equidistantly distributed first fixed seats 13, the inside of the first fixed seats 13 is rotatably connected with second rotating connecting plates 58, the inside of the second rotating connecting plates 58 is mounted with mounting frames 17, the inside of the mounting frames 17 is mounted with supporting tracks 18, the plurality of supporting tracks 18 are used for auxiliary supporting the inner wall of the heat exchanger, so as to carry out subsequent liquid outlet and cleaning operation;

[0039] One end of the protective outer cylinder 1 is fixedly connected with the second connecting side plate 21, the side away from the protective outer cylinder 1 of the second connecting side plate 21 is fixedly connected with the positioning sleeve 24, the outer side of the positioning sleeve 24 is fixedly connected with the equidistantly distributed springs 27, the outer side of the springs 27 is mounted with the auxiliary pressing plate 26, the side away from the second connecting side plate 21 of the positioning sleeve 24 is fixedly connected with the first connecting side plate 2;

[0040] The side away from the protective outer cylinder 1 of the first connecting side plate 2 is mounted with the fixed column 3, the outer side of the fixed column 3 is mounted with the auxiliary cleaning mechanism, the auxiliary cleaning mechanism comprises equidistantly distributed positioning frames 32, the inner side of the positioning frame 32 is rotatably connected with the mounting roller 33, the outer side of the mounting roller 33 is sleeved with the cleaning brush 34.

[0041] Please refer to Figures 1-6 The other end of the protective outer cylinder 1 is mounted with the first connecting pipeline 12, one end of the first connecting pipeline 12 extends to the inside of the protective outer cylinder 1 and is fixedly connected with one of the conveying pipelines 51.

[0042] The inside of the protective outer cylinder 1 and the side away from the storage box 5 are fixedly connected with the second drive motor 53, the output end of the second drive motor 53 is fixedly connected with the rotating rod 54, the outer side of the rotating rod 54 is fixedly connected with the fixed sleeve plate 55, the outer side of the fixed sleeve plate 55 is fixedly connected with the equidistantly distributed second fixed seats 56, the inner side of the second fixed seat 56 is rotatably connected with the first rotating connecting plate 57, one side of the first rotating connecting plate 57 is rotatably connected with the mounting frame 17, so as to perform secondary limiting treatment on the mounting frame 17.

[0043] Please refer to Figures 1-6 The inside of the fixed column 3 is fixedly connected with the equidistantly distributed electric telescopic rods 31, the output end of the electric telescopic rod 31 is fixedly connected with the corresponding positioning frame 32, the inside of the fixed column 3 is mounted with the storage battery used in cooperation with the electric telescopic rod 31, the electric power resource is provided for the operation of the plurality of electric telescopic rods 31 through the storage battery, the outer side of the electric telescopic rod 31 and the first drive motor 35 is coated with waterproof paint, so as to prolong the service life of the equipment.

[0044] The outer side of the positioning frame 32 and the side of the electric telescopic rod 31 are fixedly connected with the motor mounting plate 39, the outer side of the motor mounting plate 39 is fixedly connected with the first driving motor 35, the output end of the first driving motor 35 is fixedly connected with the driving wheel 38, the outer side of the driving wheel 38 is sleeved with the transmission belt 36, the inner side of the transmission belt 36 and the side away from the driving wheel 38 are rotatably connected with the driven wheel 37, the driven wheel 37 is drivingly connected with the driving wheel 38 through the transmission belt 36, the shaft of the driven wheel 37 is fixedly connected with the connecting shaft 4 extending into the positioning frame 32, one end of the connecting shaft 4 is fixedly connected with the corresponding installation roller 33, when the first driving motor 35 operates, the driving wheel 38 rotates, under the transmission of the transmission belt 36, the driven wheel 37 rotates, through the connection of the connecting shaft 4, the installation roller 33 in the positioning frame 32 rotates, and the gap in the plate heat exchanger is cleaned with the aid of the cleaning brush 34.

[0045] Please refer to Figures 1-6 In the scheme, the outer side of the liquid outlet pipeline 15 is fixedly connected with the second valve 16, the outer side of the first connecting pipeline 12 is fixedly connected with the first valve 11, the first valve 11 is used for controlling the opening and closing of the first connecting pipeline 12, so that clean water or solution can be accessed from the outside, and the second valve 16 is used for controlling the opening and closing of the corresponding liquid outlet pipeline 15, so that the liquid outlet can be assisted in the subsequent brush cleaning when the plate heat exchanger is cleaned.

[0046] In the scheme, the outer side of the protective outer cylinder 1 is provided with a control panel, the first valve 11, the second valve 16, the electric telescopic rod 31, the first driving motor 35 and the second driving motor 53 are electrically connected with the control panel, and the control panel is used for controlling the operation of the first valve 11, the second valve 16, the electric telescopic rod 31, the first driving motor 35 and the second driving motor 53, so as to realize the unified management of the power equipment.

[0047] Please refer to Figures 1-6 In the scheme, the first connecting side plate 2 and the protective outer cylinder 1 are provided with a sealing ring 22 and a sealing disc 23, one side of the sealing ring 22 is fixedly connected with the first connecting side plate 2, the sealing disc 23 is fixedly connected with the sealing ring 22, and the side of the sealing disc 23 away from the sealing ring 22 is fixedly connected with the protective outer cylinder 1, so as to realize the connection and sealing effect by installing the sealing ring 22 and the sealing disc 23 between the protective outer cylinder 1 and the first connecting side plate 2.

[0048] The outer side of the auxiliary pressing plate 26 is threadedly connected with the positioning bolt 29 matched with the limiting spring 27, the inner side of the limiting spring 27 is fixedly connected with the shock damper 28, the outer side of the positioning sleeve 24 is provided with the installation groove 25 for installing the limiting spring 27, the inner wall of the plate heat exchanger is assisted and supported by the plurality of auxiliary pressing plates 26, the auxiliary pressing plate 26 and the limiting spring 27 are reinforced and connected by the positioning bolt 29, the use stability of the equipment is improved, in order to guarantee the normal support of the inner wall of the plate heat exchanger, the limiting groove 14 matched with the positioning bolt 29 is arranged in the inner side of the auxiliary pressing plate 26, so that the positioning bolt 29 can be slid into the inner side of the corresponding auxiliary pressing plate 26.

[0049] The structure of the auxiliary pressing plate 26 is L-shaped structure, the L-shaped structure facilitates the fixation of the auxiliary pressing plate 26, the outer side of the positioning sleeve 24 is provided with the installation groove 25 distributed at equal intervals and matched with the auxiliary pressing plate 26, one side of the auxiliary pressing plate 26 is rotatably connected with the positioning sleeve 24 in the installation groove 25 through the hinge shaft, so that the buffering protection effect of the limiting spring 27 and the shock damper 28 can be guaranteed when supporting the inner wall of the plate heat exchanger, the limiting spring 27 and the shock damper 28 change in form according to the specification change of the inner wall of the plate heat exchanger, so that the service life of the equipment is prolonged.

[0050] Please refer to Figures 1-6 The working principle of the present application is as follows:

[0051] The application is provided with a protective outer cylinder 1, a first connecting side plate 2 and an auxiliary cleaning mechanism. When in use, the control panel can be installed outside the protective outer cylinder 1 or in a place convenient for operation to control all power equipment. When cleaning, the device is sent into the water side interface of the plate heat exchanger as a whole, the positioning sleeve 24 located at the front of the device enters the flow channel first, the auxiliary pressing plate 26 arranged in the circumferential direction of the positioning sleeve 24 is pushed out under the action of the spring 27 and the shock damper 28, tightly abuts against the inner wall of the flow channel of the heat exchanger, and provides stable radial support for subsequent operation to prevent the device from shaking during work. After the device is in place, the electric telescopic rod 31 is started through the control panel, the electric telescopic rod 31 pushes the positioning frame 32 and the installation roller 33 thereon to move radially outward, the cleaning brush 34 covered by the installation roller is tightly attached to the surface of the plate to be cleaned, the first driving motor 35 is started, when the first driving motor 35 operates, the driving rotating wheel 38 rotates, the driven rotating wheel 37 rotates under the transmission of the transmission belt 36, the installation roller 33 and the cleaning brush 34 are driven to rotate at high speed through the connection of the connecting shaft 4, the soft bristles can deeply enter the gap of the plate, effectively strip and sweep out the hard dirt such as shells embedded in the gap, and at the same time of brushing, the first valve 11 is opened, the external cleaning water source is connected through the first connecting pipeline 12, flows into the conveying pipeline 51, the second valve 16 is opened, and finally sprayed to the brushing area through the liquid outlet pipeline 15. The washing water flow can timely flush away the dirt brushed off to prevent secondary deposition, and the sewage is discharged from the other end of the heat exchanger with the water flow. In order to realize the overall cleaning of the flow channel in the circumferential direction, the second driving motor 53 is started, the second driving motor 53 drives the rotating rod 54 to rotate slowly, and through the cooperation of the fixing sleeve plate 55, the second fixing seat 56, the first rotating connecting plate 57 and the installation frame 17, the fixed column 3 and the positioning frame 32 are driven to slightly rotate around the device. The second driving motor 53 can be a servo motor, the rotation frequency is manually set in advance to ensure that the rotation is half a circle and the reverse rotation is half a circle to avoid the collision of the device and ensure that the cleaning brush 34 can cover every part of the inner wall of the flow channel and the gap of all plates to reduce the dead angle during cleaning. The control panel is used to control the operation of the first valve 11, the second valve 16, the electric telescopic rod 31, the first driving motor 35 and the second driving motor 53 to realize the unified management of the power equipment. The sealing ring 22 and the sealing disc 23 installed between the protective outer cylinder 1 and the first connecting side plate 2 play the connection and sealing effect, the positioning bolt 29 is used to reinforce the connection of the auxiliary pressing plate 26 and the spring 27 to improve the use stability of the device. In order to ensure the normal support of the inner wall of the plate heat exchanger, the limiting groove 14 for installing the positioning bolt 29 is arranged in the auxiliary pressing plate 26 to ensure that the positioning bolt 29 can slide into the corresponding auxiliary pressing plate 26.

[0052] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger, comprising a protective outer cylinder (1), characterized in that: The protective outer cylinder (1) is fixedly connected to a storage box (5). The storage box (5) is fixedly connected to two sides of a second connecting pipe (52). The two second connecting pipes (52) are fixedly connected to one side of a conveying pipe (51). The conveying pipe (51) is fixedly connected to one side of a liquid outlet pipe (15) extending to the outside of the protective outer cylinder (1). The protective outer cylinder (1) is equipped with equally spaced mounting frames (17). The mounting frames (17) are all equipped with support tracks (18). One end of the protective outer cylinder (1) is fixedly connected to a second connecting side plate (21). The side of the second connecting side plate (21) away from the protective outer cylinder (1) is fixedly connected to a positioning sleeve (24). The outer side of the positioning sleeve (24) is fixedly connected to springs (27) that are evenly distributed. The outer side of the springs (27) is installed with auxiliary pressure plates (26). The side of the positioning sleeve (24) away from the second connecting side plate (21) is fixedly connected to a first connecting side plate (2). A fixing column (3) is installed on the side of the first connecting side plate (2) away from the protective outer cylinder (1). An auxiliary cleaning mechanism is installed on the outside of the fixing column (3). The auxiliary cleaning mechanism includes equidistantly distributed positioning frames (32). An installation roller (33) is rotatably connected inside each positioning frame (32). A cleaning brush (34) is sleeved on the outside of each installation roller (33).

2. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 1, characterized in that: The other end of the protective outer cylinder (1) is equipped with a first connecting pipe (12), one end of which extends into the interior of the protective outer cylinder (1) and is fixedly connected to one of the conveying pipes (51).

3. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 2, characterized in that: The outer side of the protective outer cylinder (1) is fixedly connected to a first fixed seat (13) that is evenly distributed. The inner side of each first fixed seat (13) is rotatably connected to a second rotating connecting plate (58). The second rotating connecting plate (58) is rotatably connected to the mounting frame (17). The inner side of the protective outer cylinder (1) away from the storage box (5) is fixedly connected to a second drive motor (53). The output end of the second drive motor (53) is fixedly connected to a rotating rod (54). The outer side of the rotating rod (54) is fixedly connected to a fixed sleeve plate (55). The outer side of the fixed sleeve plate (55) is fixedly connected to an second fixed seat (56) that is evenly distributed. The inner side of each second fixed seat (56) is rotatably connected to a first rotating connecting plate (57). One side of the first rotating connecting plate (57) is rotatably connected to the mounting frame (17).

4. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 3, characterized in that: The fixed column (3) is internally fixedly connected with equidistantly distributed electric telescopic rods (31), the output ends of the electric telescopic rods (31) are all fixedly connected to the corresponding positioning frame (32), and the fixed column (3) is internally installed with a battery for use with the electric telescopic rods (31).

5. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 4, characterized in that: A motor mounting plate (39) is fixedly connected to the outer side of the positioning frame (32) and to the side of the electric telescopic rod (31). A first drive motor (35) is fixedly connected to the outer side of the motor mounting plate (39). An active rotating wheel (38) is fixedly connected to the output end of the first drive motor (35). A transmission belt (36) is fitted around the outer side of the active rotating wheel (38). A driven rotating wheel (37) is rotatably connected to the inside of the transmission belt (36) and to the side away from the active rotating wheel (38). The driven rotating wheel (37) is connected to the active rotating wheel (38) through the transmission belt (36). A connecting shaft (4) extending into the positioning frame (32) is fixedly connected to the axis of the driven rotating wheel (37). One end of the connecting shaft (4) is fixedly connected to the corresponding mounting roller (33).

6. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 5, characterized in that: The outer side of each liquid outlet pipe (15) is fixedly connected to a second valve (16), and the outer side of the first connecting pipe (12) is fixedly connected to a first valve (11).

7. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 6, characterized in that: The protective outer cylinder (1) is equipped with a control panel. The first valve (11), the second valve (16), the electric telescopic rod (31), the first drive motor (35), and the second drive motor (53) are all electrically connected to the control panel.

8. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 6, characterized in that: A sealing ring (22) and a sealing disc (23) are installed between the first connecting side plate (2) and the protective outer cylinder (1). One side of the sealing ring (22) is fixedly connected to the first connecting side plate (2), and the sealing disc (23) is fixedly connected to the sealing ring (22). The side of the sealing disc (23) away from the sealing ring (22) is fixedly connected to the protective outer cylinder (1).

9. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 1, characterized in that: The outer side of each auxiliary pressure plate (26) is threaded with a positioning bolt (29) that matches the corresponding spring (27) for positioning. The inside of each spring (27) is fixedly connected with a shock absorber (28). The outer side of each positioning sleeve (24) is provided with a mounting groove (25) for installing the spring (27).

10. The rotary brushing and cleaning device for biological fouling in the gaps of a plate heat exchanger according to claim 9, characterized in that: The outer side of the positioning sleeve (24) is provided with mounting grooves (25) that are evenly distributed and are installed in conjunction with the auxiliary pressure plate (26). One side of the auxiliary pressure plate (26) is rotatably connected to the positioning sleeve (24) inside the mounting groove (25) through a hinge shaft.

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