A heat exchange tube inner wall cleaning device

Abstract

The application relates to a heat exchange pipe inner wall cleaning device, and relates to a cleaning device. The application is used to solve the problem of low cleaning work efficiency caused by high labor intensity when the heat exchange pipe is cleaned. The application has the advantages of simple structure and convenient operation. According to the pipe diameter and the dirt degree of the heat exchange pipe, a suitable brush head is selected, the brush head is installed on an adapter through a threaded connection mode, the brush head is manually put into the inside of the heat exchange pipe, a motor is started, the motor drives the brush head to rotate through a composite flexible shaft, and the brush head can clean the inner wall of the heat exchange pipe. Since the protective hose is coaxially sleeved on the composite flexible shaft, and one end surface of the protective hose is fixedly connected with the fixing block, the composite flexible shaft can rotate on the protective hose, the protective hose does not rotate, and the heat exchange pipe at different positions can be cleaned by pushing or pulling out the protective hose. The application belongs to the technical field of heat exchange pipe cleaning.

Description

Technical Field

[0001] This invention relates to a cleaning device, specifically a heat exchange tube inner wall cleaning device, belonging to the field of heat exchange tube cleaning technology. Background Technology

[0002] Marine pressurized boilers have densely packed tube bundles with high heat exchange intensity. After long-term operation, scale or dirt will inevitably form inside each heat exchange tube. Due to the large number of heat exchange tubes, the cleaning efficiency is low because of the high labor intensity when maintenance workers clean them for a long time.

[0003] Therefore, in response to the above-mentioned technical problems, a cleaning device is proposed, which has become a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] To address the shortcomings of the prior art, this invention provides a heat exchange tube inner wall cleaning device.

[0005] The technical solution of the present invention is: a heat exchange tube inner wall cleaning device, comprising a motor, a fixing block and a cleaning unit.

[0006] The fixing block is installed on the motor housing, and the cleaning unit includes a composite flexible shaft, a protective hose, a second gasket, an adapter, and a brush head.

[0007] The protective hose is coaxially sleeved on the composite flexible shaft. One end of the protective hose is fixed to the fixed block, and the other end of the protective hose is fixed to the first gasket.

[0008] One end of the composite flexible shaft is fixedly connected to the rotor of the motor, and the other end of the composite flexible shaft passes through the first gasket and is coaxially fixedly connected to the adapter. The brush head is coaxially mounted on the adapter.

[0009] Furthermore, it also includes a second gasket, which is fitted onto the composite flexible shaft and is disposed between the first gasket and the adapter.

[0010] Furthermore, the inner diameter of the second gasket is larger than the outer diameter of the composite flexible shaft, and the outer diameter of the second gasket is larger than the outer diameter of the adapter but smaller than the inner diameter of the heat exchange tube.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] The present invention has a simple structure and is easy to operate. According to the diameter and degree of dirt of the heat exchange tube, a suitable brush head 37 is selected. The brush head 37 is installed on the adapter 36 by means of threaded connection. The brush head 37 is manually inserted into the heat exchange tube, and the motor 1 is started. The motor 1 drives the brush head 37 to rotate through the composite flexible shaft 30. The brush head 37 can clean the inner wall of the heat exchange tube, thereby extending the service life of the heat exchange tube and the entire tube bundle.

[0013] The heat exchange pipe at different positions can be cleaned by pushing or pulling the protective hose 31, the labor intensity of cleaning the heat exchange pipe is reduced, and the cleaning efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic diagram of the present application;

[0015] Fig. 2 is a structural schematic diagram of the cleaning unit 3.

[0016] In the figure: 1, motor; 2, fixed block; 3, cleaning unit; 30, composite flexible shaft; 31, protective hose; 32, steel wire rope; 33, spring; 34, first gasket; 35, second gasket; 36, adapter; 37, brush head. DETAILED DESCRIPTION

[0017] In order to make the invention purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0018] Specific implementation method one: in combination with Figs. 1-2 It is explained that the present embodiment, a heat exchange pipe inner wall cleaning device in the present embodiment includes a motor 1, a fixed block 2 and a cleaning unit 3.

[0019] The fixed block 2 is installed on the shell of the motor 1, and the cleaning unit 3 includes a composite flexible shaft 30, a protective hose 31, a second gasket 35, an adapter 36 and a brush head 37.

[0020] The protective hose 31 is coaxially sleeved on the composite flexible shaft 30, one end surface of the protective hose 31 is fixedly connected with the fixed block 2, and the other end surface of the protective hose 31 is fixedly connected with the first gasket 34.

[0021] The length of the composite flexible shaft 30 is 100 mm longer than the length of the protective hose 31, one end of the composite flexible shaft 30 is fixedly connected with the rotor of the motor 1, the other end of the composite flexible shaft 30 is coaxially fixedly connected with the adapter 36 after passing through the first gasket 34, and the brush head 37 is coaxially installed on the adapter 36.

[0022] Specific implementation method two: in combination with Figs. 1-2 It is explained that the present embodiment, the composite flexible shaft 30 in the present embodiment includes a steel wire rope 32 and a spring 33, the spring 33 is coaxially sleeved on the steel wire rope 32, the length of the steel wire rope 32 is the same as that of the spring 33, and the advantages are as follows:

[0023] 1. Spring 33 has good elasticity, which can provide buffering and restoring force when the wire rope 32 is bent or twisted, maintaining the flexibility of the composite flexible shaft 30; on the other hand, the high strength of the wire rope 32 ensures that it will not break when subjected to large loads during operation.

[0024] 2. Spring 33 can absorb and disperse impact force, reducing direct impact on wire rope 32. Wire rope 32 itself has a certain degree of toughness and can withstand large impact loads, thus improving the overall impact resistance of composite flexible shaft 30.

[0025] 3. The wire rope 32 has good tensile strength and load-bearing capacity, and can withstand large axial and radial loads; the spring 33 provides flexibility and elasticity, and can also assist the wire rope 32 in sharing part of the load, thereby improving the overall load-bearing capacity of the composite flexible shaft 30.

[0026] 4. The combination of wire rope 32 and spring 33 makes the structure of composite flexible shaft 30 relatively simple, easy to install and disassemble, and easy to maintain and replace later.

[0027] The other components and connections are the same as in Specific Implementation Method 1.

[0028] Specific implementation method three: Combining Fig. 2 In this embodiment, the outer diameter of the first gasket 34 is the same as the outer diameter of the protective hose 31, the inner diameter of the first gasket 34 is smaller than the inner diameter of the protective hose 31, and the inner diameter of the first gasket 34 is larger than the outer diameter of the composite flexible shaft 30. Other components and connections are the same as in specific embodiments one or two.

[0029] Specific implementation method four: Combination Fig. 2 This embodiment further includes a second gasket 35, which is fitted onto the composite flexible shaft 30 and is arranged between the first gasket 34 and the adapter 36.

[0030] Furthermore, the inner diameter of the second gasket 35 is larger than the outer diameter of the composite flexible shaft 30, and the outer diameter of the second gasket 35 is larger than the outer diameter of the adapter 36 but smaller than the inner diameter of the heat exchange tube. This arrangement serves two purposes: firstly, it prevents the adapter 36 from scratching the inner wall of the heat exchange tube when it rotates inside the heat exchange tube, thus providing protection; secondly, it prevents the adapter 36 from impacting or rubbing against the first gasket 34.

[0031] The other components and connections are the same as those in specific implementation methods one, two, or three.

[0032] Specific Implementation Method Five: Combining Figs. 1-2 In this embodiment, the protective hose 31 is a galvanized hose. This design ensures that the protective hose 31 has flexibility and corrosion resistance while maintaining its strength.

[0033] Further, the inner diameter of the protective hose 31 is larger than the outer diameter of the composite flexible shaft 30, so that the composite flexible shaft 30 can rotate freely in the protective hose 31.

[0034] The other components and connection relationships are the same as those in the first, second, third or fourth embodiment.

[0035] Sixth embodiment: in combination Fig. 2 In this embodiment, the brush head 37 is installed on the adapter 36 by screwing, so that different sizes of brush head 37 can be installed or replaced conveniently. When the heat exchange pipes of different diameters need to be cleaned, different sizes of brush head 37 can be replaced for cleaning work.

[0036] The other components and connection relationships are the same as those in the first, second, third, fourth or sixth embodiment.

[0037] Working principle

[0038] In combination Figs. 1-2 Figs. 1-2 The working principle of the present application is explained as follows:

[0039] According to the diameter of the heat exchange pipe and the degree of contamination, the appropriate brush head 37 is selected, the brush head 37 is installed on the adapter 36 by screwing, and the brush head 37 is manually put into the inside of the heat exchange pipe, the motor 1 is started, the motor 1 drives the brush head 37 to rotate through the composite flexible shaft 30, and the brush head 37 can clean the inner wall of the heat exchange pipe.

[0040] Since the protective hose 31 is coaxially sleeved on the composite flexible shaft 30, and the end surface of the protective hose 31 is fixedly connected with the fixed block 2, the composite flexible shaft 30 can rotate in the protective hose 31, and the protective hose 31 does not rotate, and the heat exchange pipe at different positions can be cleaned by pushing or pulling out the protective hose 31.

[0041] The present application has been disclosed in the above preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art, without departing from the technical solution of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above embodiments, still belongs to the technical solution range of the present application.

Claims

1. A heat exchange tube inner wall cleaning device, characterized in that: it comprises a motor (1), a fixed block (2), a second gasket (35) and a cleaning unit (3); the fixed block (2) is installed on the shell of the motor (1), and the cleaning unit (3) comprises a composite flexible shaft (30), a protective hose (31), the second gasket (35), an adapter (36) and a brush head (37); the protective hose (31) is coaxially sleeved on the composite flexible shaft (30), one end face of the protective hose (31) is fixedly connected with the fixed block (2), the other end face of the protective hose (31) is fixedly connected with a first gasket (34), and the length of the composite flexible shaft (30) is 100 mm longer than the length of the protective hose (31); one end of the composite flexible shaft (30) is fixedly connected with a rotor of the motor (1), the other end of the composite flexible shaft (30) is coaxially fixedly connected with the adapter (36) after penetrating through the first gasket (34), and the brush head (37) is coaxially installed on the adapter (36); the second gasket (35) is sleeved on the composite flexible shaft (30), and the second gasket (35) is arranged between the first gasket (34) and the adapter (36); the inner diameter of the second gasket (35) is greater than the outer diameter of the composite flexible shaft (30), the outer diameter of the second gasket (35) is greater than the outer diameter of the adapter (36) and smaller than the inner diameter of the heat exchange tube; the composite flexible shaft (30) comprises a steel wire rope (32) and a spring (33), the spring (33) is coaxially sleeved on the steel wire rope (32), and the length of the steel wire rope (32) is the same as that of the spring (33). The outer diameter of the first gasket (34) is the same as that of the protective hose (31), the inner diameter of the first gasket (34) is smaller than that of the protective hose (31), and the inner diameter of the first gasket (34) is greater than the outer diameter of the composite flexible shaft (30). The protective hose (31) is a galvanized hose. The inner diameter of the protective hose (31) is greater than the outer diameter of the composite flexible shaft (30). ​ ​ ​ ​ 2. The heat exchange tube inner wall cleaning device according to claim 1, characterized in that: ​ 3. The heat exchange tube inner wall cleaning device according to claim 2, characterized in that: ​ 4. The heat exchanging tube inner wall cleaning device according to claim 3, characterized in that: ​

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