Boiler heating surface tube panel ball passing test device

Abstract

The utility model relates to a device for a boiler heating surface tube panel ball passing test, which comprises a ventilation pipe and an iron ball, one end of the ventilation pipe is movably provided with a movable frame body, the inner surface of the movable frame body is fixedly provided with an electric fan, one end of the ventilation pipe is movably provided with a ball bag, and the inside of the ventilation pipe is provided with an anti-collision assembly. According to the device for the boiler heating surface tube panel ball passing test, through cooperation of the ventilation pipe, the electric fan, the iron ball and the ball bag, when the boiler heating surface tube panel ball passing test is carried out, soot blowing is carried out on the inner wall of the ventilation pipe and impurities in the ventilation pipe are cleaned through starting of the electric fan, so that the accuracy of the test is ensured; then the iron balls roll into the ventilation pipe until the iron balls fall into the ball bags, and the ball passing test is completed; and through the arrangement of the buffer springs, the lining and the wear-resistant layer which are matched, when the iron balls roll in the ventilation pipe, the buffer springs can play a role in absorbing and reducing impact force.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power plant equipment, in particular to a device for a boiler heating surface tube screen ball passing test. Background Art

[0002] The boiler equipment in thermal power plants belongs to the category of special equipment, and its production, manufacturing, installation, maintenance and inspection are subject to strict regulatory requirements. There are a large number of small-diameter pipes in the boiler equipment as boiler heating surface pipes, and the pipes must be clean and free of debris to avoid major problems such as tube bursts caused by uncleanliness and debris in the tubes during boiler operation, which directly affects the quality of the boiler trial operation.

[0003] During the installation of the boiler, it is very important to check the cleanliness of the pipeline and the absence of welding slag, iron filings and other debris through a ball test. The current test device often uses compressed air to blow the small-diameter pipeline, manually puts a steel ball into the pipe mouth, and blows the steel ball to the other end of the pipeline with compressed air to be received by a ball receiver. However, due to the elbows or welding parts of the pipeline, the pipe wall is likely to be damaged during the ball passing process, resulting in wear on the inner wall of the pipeline, and even deformation of the pipeline in severe cases. Therefore, a device for a boiler heating surface tube screen ball passing test is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for a boiler heating surface tube screen ball passing test, which has the advantages of protecting the pipeline, etc. and solves the problem that the pipe wall is likely to be damaged at the elbows or welding parts of the pipeline during the ball passing process, causing wear on the inner wall of the pipeline and even deformation of the pipeline in severe cases.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for a ball-passing test of a heating surface tube screen of a boiler, comprising a ventilation pipe and an iron ball, a movable frame movably mounted on one end of the ventilation pipe, an electric fan fixedly mounted on the inner surface of the movable frame, a ball bag movably mounted on one end of the ventilation pipe, and an anti-collision component mounted inside the ventilation pipe;

[0006] The anti-collision component includes two groups of buffer springs, and the inner wall of the ventilation pipe is fixedly installed with two groups of buffer springs. One end of the two groups of buffer springs is fixedly installed with an inner liner, and the opposite sides of the two inner liners are fixedly installed with a wear-resistant layer.

[0007] Preferably, connecting blocks are fixedly mounted on both ends of the ball bag, and two mounting blocks are fixedly mounted on the outer surface of the ventilation pipe, and the two mounting blocks are fixedly mounted to the connecting blocks by fastening bolts.

[0008] Preferably, the ball bag and the movable frame are respectively located at two ends of the ventilation pipe.

[0009] Preferably, the inner wall of the ventilation pipe is rollingly connected to the iron ball.

[0010] Preferably, the number of the iron balls in each group is not less than ten, and every ten iron balls are distributed on the inner wall of the ventilation pipe at equal distances.

[0011] Preferably, the two wear-resistant layers are made of alloy material.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The device for the ball-passing test of the heating surface tube screen of the boiler is provided with coordination among the ventilation pipe, the electric fan, the iron ball and the ball bag. When the ball-passing test of the heating surface tube screen of the boiler is conducted, the electric fan is first turned on to blow away the dust on the inner wall of the ventilation pipe and to clean the impurities inside the ventilation pipe to ensure the accuracy of the test. Then the iron ball is rolled into the ventilation pipe until it falls into the ball bag to complete the ball-passing test.

[0014] 2. The device for the ball-passing test of the heating surface tube screen of the boiler has a buffer spring, an inner lining and a wear-resistant layer. When the iron ball rolls inside the ventilation pipe, the buffer spring can absorb and reduce the impact force. The inner lining, as the second line of defense, can not only further absorb the impact, but also prevent the wear of the ventilation pipe body caused by long-term friction. The wear-resistant layer provides additional protection and enhances the ability of the inner wall to resist erosion and scratches by particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 It is a side view of the local structure of the utility model.

[0018] In the figure: 1. ventilation duct; 2. movable frame; 3. electric fan; 4. iron ball; 5. ball bag; 501. connecting block; 502. mounting block; 503. fastening bolt; 6. anti-collision component; 601. buffer spring; 602. lining; 603. wear-resistant layer. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 In this embodiment, a device for a boiler heating surface tube screen ball passing test comprises a ventilation pipe 1 and an iron ball 4. A movable frame 2 is movably mounted at one end of the ventilation pipe 1, an electric fan 3 is fixedly mounted on the inner surface of the movable frame 2, a ball bag 5 is movably mounted at one end of the ventilation pipe 1, and an anti-collision component 6 is installed inside the ventilation pipe 1.

[0021] It should be noted that there are a large number of small-diameter pipes in the boiler equipment as boiler heating surface pipes, and the pipes must be clean and free of debris to avoid major problems such as pipe bursts caused by uncleanness and debris in the pipes during boiler operation, which directly affects the quality of boiler trial operation. Therefore, during the boiler installation process, it is very important to check the cleanliness of the pipe part and the absence of welding slag, iron filings and other debris through a ball test. The cooperation between the ventilation pipe 1, iron ball 4, movable frame 2, electric fan 3 and ball bag 5 set above can form a boiler heating surface tube screen ball test, and the test can protect the inner wall of the ventilation pipe 1. When conducting the boiler heating surface tube screen ball test, first, the inner wall of the ventilation pipe 1 is blown by opening the electric fan 3 to clean the impurities inside the ventilation pipe 1 to ensure the accuracy of the test, and then the iron ball 4 is rolled into the ventilation pipe 1 until the iron ball 4 falls into the ball bag 5 to complete the ball test.

[0022] The anti-collision component 6 includes two groups of buffer springs 601, and the inner wall of the ventilation pipe 1 is fixedly installed with two groups of buffer springs 601. One end of the two groups of buffer springs 601 is fixedly installed with an inner lining 602, and the opposite sides of the two inner liners 602 are fixedly installed with a wear-resistant layer 603. The anti-collision component 6 can provide a protective effect for the ventilation pipe 1. When the iron ball 4 rolls inside the ventilation pipe 1, the buffer spring 601 can absorb and reduce the impact force. The inner lining 602 serves as the second line of defense, which can not only further absorb the impact, but also prevent the wear of the ventilation pipe 1 body caused by long-term friction. The wear-resistant layer 603 provides additional protection, which enhances the ability of the inner wall to resist erosion and scratches by particulate matter.

[0023] Connecting blocks 501 are fixedly installed at both ends of the ball bag 5, and two mounting blocks 502 are fixedly installed on the outer surface of the ventilation pipe 1. The two mounting blocks 502 are fixedly installed with the connecting blocks 501 by fastening bolts 503. The ball bag 5 can be used to receive the iron ball 4, and the fastening bolts 503 can be used to separate the connecting block 501 from the mounting block 502, so as to disassemble the ball bag 5, and the ball bag 5 is an elastic ball bag.

[0024] The two wear-resistant layers 603 are made of alloy material. The alloy material has the characteristic of high hardness and is suitable for wear-resistant protection of the inner wall of the ventilation pipe 1.

[0025] The above arrangement can solve the problem that the pipe wall is likely to be damaged during the ball passing process at the elbows or welding parts of the pipe, resulting in wear on the inner wall of the pipe and even deformation of the pipe in severe cases.

[0026] When implementing, follow these steps:

[0027] 1) During the test, the electric fan 3 is turned on to blow dust off the inner wall of the ventilation pipe 1 to clean the impurities inside the ventilation pipe 1;

[0028] 2) Then roll the iron ball 4 into the ventilation pipe 1;

[0029] 3) During the rolling process, the buffer spring 601 can absorb and reduce the impact force of the iron ball 4;

[0030] 4) Finally, the iron ball 4 falls into the ball bag 5, and the ball passing test is completed.

[0031] In summary, the device for the boiler heating surface tube panel ball passing test, by setting the coordination between the ventilation pipe 1, the electric fan 3, the iron ball 4 and the ball bag 5, when conducting the boiler heating surface tube panel ball passing test, firstly, the electric fan 3 is turned on to blow away the dust on the inner wall of the ventilation pipe 1, and the impurities inside the ventilation pipe 1 are cleaned to ensure the accuracy of the test, and then the iron ball 4 is rolled into the ventilation pipe 1 until the iron ball 4 falls into the ball bag 5, and the ball passing test is completed.

[0032] Furthermore, by arranging the cooperation among the buffer spring 601, the lining 602 and the wear-resistant layer 603, when the iron ball 4 rolls inside the ventilation pipe 1, the buffer spring 601 can absorb and reduce the impact force, and the lining 602, as the second line of defense, can not only further absorb the impact, but also prevent the wear of the ventilation pipe 1 body caused by long-term friction, and the wear-resistant layer 603 provides additional protection, enhancing the ability of the inner wall to resist erosion and scratches by particulate matter.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for a boiler heating surface tube panel ball-passing test, comprising a ventilation tube (1) and an iron ball (4), Features: A movable frame (2) is movably mounted on one end of the ventilation pipe (1), an electric fan (3) is fixedly mounted on the inner surface of the movable frame (2), a ball bag (5) is movably mounted on one end of the ventilation pipe (1), and an anti-collision component (6) is mounted inside the ventilation pipe (1); The anti-collision component (6) comprises two groups of buffer springs (601), the inner wall of the ventilation pipe (1) is fixedly mounted with the two groups of buffer springs (601), one end of the two groups of buffer springs (601) is fixedly mounted with an inner lining (602), and the opposite sides of the two inner linings (602) are fixedly mounted with a wear-resistant layer (603).

2. A boiler heating surface tube panel ball-passing test device according to claim 1, Features: Both ends of the ball bag (5) are fixedly mounted with connection blocks (501), and the outer surface of the ventilation pipe (1) is fixedly mounted with two mounting blocks (502), and the two mounting blocks (502) are fixedly mounted with the connection blocks (501) by means of fastening bolts (503).

3. A boiler heating surface tube panel ball-passing test device according to claim 1, Features: The ball bag (5) and the movable frame (2) are respectively located at two ends of the ventilation pipe (1).

4. A boiler heating surface tube panel ball-passing test device according to claim 1, Features: The inner wall of the ventilation pipe (1) is rollingly connected to the iron ball (4).

5. A boiler heating surface tube panel ball-passing test device according to claim 1, Features: The number of the iron balls (4) in each group is not less than ten, and every ten iron balls (4) are distributed at equal distances on the inner wall of the ventilation pipe (1).

6. A boiler heating surface tube panel ball-passing test device according to claim 1, Features: The two wear-resistant layers (603) are made of alloy material.

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