Turbomachinery cleaning system

Abstract

The invention belongs to the technical field of cleaning, and particularly discloses a turbomachinery cleaning system which comprises an air supply device, a flushing device and a discharging device, the air supply device is used for supplying air to the flushing device, the flushing device is used for flushing a volute and an air inlet, and a gap is reserved between the flushing device and an impeller; the discharging device is used for discharging flushing gas in the volute and the gas inlet box; the flushing device comprises an air inlet flushing unit and a volute flushing unit, the air inlet flushing unit is used for flushing from the inlet direction of the impeller, and the volute flushing unit is used for flushing from the outlet direction of the impeller. According to the impeller cleaning device, it can be guaranteed that when equipment operates normally, adherends on the impeller can be removed, normal work of a system is not affected, maintenance time and cost are saved, and reliability and stability of equipment operation are improved.

Description

Technical Field

[0001] The invention belongs to the field of cleaning technology, and in particular relates to a turbine machinery cleaning system. Background Art

[0002] As a kind of turbine machinery, centrifugal fan is widely used in cement, steel, petrochemical, metallurgy and other industries to transport gas. It is a machine that converts the mechanical energy of the prime mover into gas energy. The transported gas may be clean air, flue gas with a small amount of dust, flue gas with a large amount of dust, or mixed gas with a large amount of dust and water.

[0003] Centrifugal fans are used to transport flue gas containing a lot of dust, as well as mixed gas containing a lot of dust and moisture. During the operation of the impeller, dust will adhere to the impeller. Due to the uneven distribution of the attachments, the impeller gradually loses balance, the fan vibration increases, and even violent vibration occurs. At this time, it is necessary to stop for maintenance and remove the adhesion on the impeller. Otherwise, safety accidents that damage the equipment will occur due to excessive vibration. However, in the factory's piping system, centrifugal fans, as an important gas transportation equipment, cannot be stopped at will. If they are stopped for maintenance, it will affect the operation of the entire system. Summary of the invention

[0004] The purpose of the present invention is to provide a turbine machinery cleaning system that can ensure that when the equipment is operating normally, the adhesion on the impeller is removed without affecting the normal operation of the system, saving maintenance time and cost, and improving the reliability and stability of the equipment operation.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a turbine machinery cleaning system, including an air supply device, a flushing device and a discharge device, the air supply device is used to supply air to the flushing device, the flushing device is used to flush the volute and the air inlet, and a gap is left between the flushing device and the impeller; the discharge device is used to discharge the flushing gas in the volute and the air inlet box; the flushing device includes an air inlet flushing unit and a volute flushing unit, the air inlet flushing unit is used to flush from the impeller inlet direction, the air inlet flushing unit includes a first air inlet pipe, an inlet nozzle and a support assembly, the A support assembly is installed on the deflector in the air intake box, and the support assembly is used to support the first air intake duct and the inlet nozzle; the two sides of the first air intake duct are respectively connected to the inlet nozzle and the first delivery duct of the air supply device; the first air intake duct and the inlet nozzle are located in the air intake box; the volute flushing unit is used for flushing from the outlet direction of the impeller, and the volute flushing unit includes a second air intake duct and a flushing nozzle, the two sides of the second air intake duct are respectively connected to the flushing nozzle and the second delivery duct of the air supply device, and the second air intake duct is installed on the volute; the flushing nozzle is inserted into the volute.

[0006] Furthermore, the excretion device includes an air intake box excretion unit and a volute excretion unit, the air intake box excretion unit is connected to the bottom of the air intake box, and the volute excretion unit is connected to the bottom of the volute; the air intake box excretion unit and the volute excretion unit both include a drain pipe and a drain valve, and both sides of the drain pipe are respectively connected to the drain valve and the bottom of the volute or the bottom of the air intake box.

[0007] Furthermore, the first air intake pipe includes a first flushing flange, a first connecting pipe, a first connecting block, a second connecting pipe and a flexible joint which are arranged in sequence, one side of the first connecting pipe is connected to the first flushing flange, one end of the first delivery pipe is fixed with a second flushing flange, and the first flushing flange and the second flushing flange are fixed; the two sides of the first connecting block are respectively detachably connected to the first connecting pipe and the second connecting pipe; the two sides of the flexible joint are respectively detachably connected to the second connecting pipe and the inlet nozzle.

[0008] Furthermore, the support assembly includes a support plate, a pad and a surrounding plate. An arc-shaped protrusion is provided in the middle of the surrounding plate, and the arc-shaped protrusion matches the shape of the inlet nozzle. The lower side of the surrounding plate and the inlet nozzle is located on the pad, and the surrounding plate is connected to the pad; the two sides of the support plate are respectively connected to the pad and the deflector.

[0009] Furthermore, the second air intake pipe includes a third flushing flange, a third connecting pipe and a second connecting block, one side of the third connecting pipe is connected to the third flushing flange, a fourth flushing flange is fixed to one end of the second delivery pipe, and the third flushing flange is fixed to the fourth flushing flange; the two sides of the second connecting block are respectively detachably connected to the third connecting pipe and the flushing nozzle, and the second connecting block is fixed to the volute.

[0010] Furthermore, a first sewage discharge flange is fixed to one side of the sewage discharge pipe, a second sewage discharge flange is fixed to one side of the sewage discharge valve, and the first sewage discharge flange and the second sewage discharge flange are fixed.

[0011] Furthermore, the outlet ends of the inlet nozzle and the flushing nozzle are both strip-shaped outlet structures.

[0012] Furthermore, the detachable connection is a threaded connection.

[0013] Furthermore, a sinking cavity is provided at the bottom of the volute, and a sewage discharge pipe of the volute discharge unit is connected to the sinking cavity.

[0014] Furthermore, the volute flushing units are provided with two groups, and the two groups of volute flushing units are respectively located on both sides of the volute.

[0015] The working principle and beneficial effect of the technical solution are as follows: since there is a certain gap between the flushing device and the impeller, the equipment can also be flushed during operation. When the impeller needs to be flushed, all valves in the entire cleaning system are opened, and the gas enters the flushing device through the air supply device to flush the impeller. The air inlet flushing unit flushes from the impeller inlet direction, and the volute flushing unit flushes from two angles to the outlet direction of the rotating impeller, thereby achieving comprehensive azimuth cleaning of the impeller. The adhesions and waste gas flushed from the impeller are discharged from the equipment through the discharge device, the air inlet box discharge unit discharges the waste gas and dirt generated in the air inlet box, and the volute discharge unit discharges the waste gas and dirt generated in the volute. Since the volute outlet is horizontal, a sinking cavity is set at the bottom to facilitate the collection of surrounding waste gas and dirt, and to discharge them smoothly, thereby ensuring smooth airflow of the system. The technical solution has the advantages of integrity, stability, flexibility, and high efficiency. It can ensure that the equipment can remove adhesions on the impeller during normal operation without affecting the normal operation of the system, saving maintenance time and cost, and improving the reliability and stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the connection structure between an impeller and an air supply device of a turbine machinery cleaning system of the present invention;

[0017] Figure 2 A schematic diagram of the connection structure between an air intake box and an air supply device of a turbomachinery cleaning system of the present invention;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the middle air inlet flushing unit;

[0019] Figure 4 for Figure 3 Schematic diagram of the middle inlet nozzle in direction A;

[0020] Figure 5 for Figure 2 Cross-sectional view of the middle BB;

[0021] Figure 6 for Figure 1 The structural diagram of the volute flushing unit on the middle right;

[0022] Figure 7 for Figure 1 The structural diagram of the volute flushing unit on the left side of the middle;

[0023] Figure 8 for Figure 2 A schematic diagram of the structure of the discharge unit of the middle air intake box;

[0024] Fig. 9 for Figure 1 Schematic diagram of the structure of the middle volute discharge unit. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: air storage tank 1, air inlet pipe 2, air outlet pipe 3, volute 4, air inlet box 5, volute flushing unit 6, volute discharge unit 7, sinking cavity 8, air inlet box discharge unit 9, air inlet flushing unit 10, deflector 11, impeller 12, first delivery pipeline 13, second delivery pipeline 14, second flushing flange 15, first flushing flange 16, first connecting pipe 17, first connecting block 18, second connecting pipe 19, flexible joint 20, enclosure 21, pad 22, support plate 23, inlet nozzle 24, fourth flushing flange 25, third flushing flange 26, third connecting pipe 27, second connecting block 28, flushing nozzle 29, drain pipe 30, drain valve 31, first drain flange 32, second drain flange 33, strip mouth structure 34.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The embodiment is basically as shown in the attached Figure 1-9 As shown: A turbomachinery cleaning system, such as Figure 1 , 2 As shown, it includes an air supply device, a flushing device and a discharge device. The air supply device is used to supply air to the flushing device. The air supply device includes an air inlet pipe 2, an air storage tank 1 and an air outlet pipe 3. The two sides of the air inlet pipe 2 are respectively connected to the air source and the air storage tank 1, one side of the air outlet pipe 3 is connected to the air storage tank 1, and the other side is respectively connected to the first delivery pipeline 13 and the second delivery pipeline 14. A one-way air inlet valve is connected to the air inlet pipe 2, and a one-way air outlet valve is provided on the air outlet pipe 3.

[0029] The flushing device is used to flush the volute 4 and the air inlet, and a gap is left between the flushing device and the impeller 12; the flushing device includes an air inlet flushing unit 10 and a volute flushing unit 6, and the air inlet flushing unit 10 is used to flush from the inlet direction of the impeller 12. Figure 3 As shown, the air inlet flushing unit 10 includes a first air inlet pipe, an inlet nozzle 24 and a support assembly, the support assembly is mounted on the deflector 11 in the air inlet box 5, and the support assembly is used to support the first air inlet pipe and the inlet nozzle 24. Figure 3 , 5 As shown, the support assembly includes a support plate 23, a pad 22 and a shroud 21. An arc-shaped protrusion is provided in the middle of the shroud 21, and the arc-shaped protrusion matches the shape of the inlet nozzle 24. The lower sides of the shroud 21 and the inlet nozzle 24 are located on the pad 22, and the shroud 21 and the pad 22 are connected by bolts and nuts. The two sides of the support plate 23 are respectively connected to the pad 22 and the deflector 11. The two sides of the first air intake pipeline are respectively connected to the inlet nozzle 24 and the first delivery pipeline 13 of the air supply device; the first air intake pipeline and the inlet nozzle 24 are located in the air intake box 5. Specifically, the first air intake pipeline includes a first flushing flange 16, a first connecting pipe 17, a first connecting block 18, a second connecting pipe 19 and a flexible joint 20 arranged in sequence, one side of the first connecting pipe 17 is welded to the first flushing flange 16, and one end of the first delivery pipeline 13 is welded and fixed with a second flushing flange 15, and the first flushing flange 16 and the second flushing flange 15 are fixed by bolts and nuts. The first connecting block 18 is detachably connected to the first connecting pipe 17 and the second connecting pipe 19 on both sides; the flexible joint 20 is detachably connected to the second connecting pipe 19 and the inlet nozzle 24 on both sides. Specifically, one end of the first connecting pipe 17 is provided with an external thread, both ends of the second connecting pipe 19 are provided with external threads, one end of the inlet nozzle 24 is provided with an external thread, the first connecting block 18 is provided with internal threads on both sides, the flexible joint 20 is provided with internal threads on both sides, the internal threads on both sides of the first connecting block 18 are threadedly connected to the external threads of the first connecting pipe 17 and the external threads of the second connecting pipe 19, respectively, and the internal threads on both sides of the flexible joint 20 are threadedly connected to the external threads of the second connecting pipe 19 and the external threads of the inlet nozzle 24, respectively.

[0030] like Figure 1 ,6 7. Two groups of volute flushing units 6 are provided. The two groups of volute flushing units 6 are respectively located on both sides of the volute 4. The two groups of volute flushing units 6 are used to flush the outlet direction of the impeller 12 from two angles. The volute flushing units 6 include a second air intake pipe and a flushing nozzle 29. The two sides of the second air intake pipe are respectively connected to the flushing nozzle 29 and the second delivery pipe 14 of the air supply device. The second air intake pipe is installed on the volute 4. The flushing nozzle 29 is inserted into the volute 4. The second air intake pipe includes a third flushing flange 26, a third connecting pipe 27 and a second connecting block 28. One side of the third connecting pipe 27 is welded to the third flushing flange 26. One end of the second delivery pipe 14 is welded and fixed with a fourth flushing flange 25. The third flushing flange 26 and the fourth flushing flange 25 are fixed by bolts and nuts; the two sides of the second connecting block 28 are respectively detachably connected to the third connecting pipe 27 and the flushing nozzle 29. The second connecting block 28 is fixed to the volute 4 (a through hole is provided on the volute 4, and the second connecting block 28 is sealed and fixed in the through hole). The second connecting block 28 has internal threads on both sides, the third connecting pipe 27 has external threads on one side, and the flushing nozzle 29 has external threads on one side. The internal threads on both sides of the second connecting block 28 are threadedly connected with the external threads of the third connecting pipe 27 and the external threads of the flushing nozzle 29 respectively.

[0031] like Figure 1 , 2 As shown, the discharge device is used to discharge the flushing gas in the volute 4 and the air inlet box 5; the discharge device includes an air inlet box discharge unit 9 and a volute discharge unit 7, the air inlet box discharge unit 9 is connected to the bottom of the air inlet box 5, and the volute discharge unit 7 is connected to the bottom of the volute 4. Figure 8 , 9 As shown, both the air intake box discharge unit 9 and the volute discharge unit 7 include a drain pipe 30 and a drain valve 31, and the two sides of the drain pipe 30 are respectively connected to the drain valve 31 and the bottom of the volute 4 or the bottom of the air intake box 5. A first drain flange 32 is welded and fixed to one side of the drain pipe 30, and a second drain flange 33 is welded and fixed to one side of the drain valve 31. The first drain flange 32 and the second drain flange 33 are fixed by bolts and nuts. A sinking cavity 8 is provided at the bottom of the volute 4, and the drain pipe 30 of the volute discharge unit 7 is connected to the sinking cavity 8. The drain pipe 30 of the volute discharge unit 7 is a curved pipe.

[0032] like Figure 4 , 6 As shown in , 7 , the outlet ends of the inlet nozzle 24 and the flushing nozzle 29 are both strip-shaped outlet structures 34 .

[0033] The specific implementation process is as follows:

[0034] Since there is a certain gap between the flushing device and the impeller 12, the equipment can also be flushed during operation. When the impeller 12 needs to be flushed, all valves in the entire cleaning system are opened, and the gas enters the flushing device through the air supply device to flush the impeller 12. The air inlet flushing unit 10 flushes from the inlet direction of the impeller 12, and the volute flushing unit 6 flushes from two angles in the outlet direction of the rotating impeller 12, thereby achieving comprehensive azimuth cleaning of the impeller 12. The adhesion and waste gas flushed from the impeller 12 are discharged from the equipment through the discharge device, the air inlet box discharge unit 9 discharges the waste gas and dirt generated in the air inlet box 5, and the volute discharge unit 7 discharges the waste gas and dirt generated in the volute 4. Since the outlet of the volute 4 is horizontal, a sinking cavity 8 is set at the bottom to facilitate the collection of surrounding waste gas and dirt, and to discharge them smoothly, so as to ensure smooth airflow of the system. This technical solution has the advantages of integrity, stability, flexibility, and high efficiency. It can ensure that the adhesion on the impeller 12 is removed during normal operation of the equipment without affecting the normal operation of the system, saving maintenance time and costs, and improving the reliability and stability of the equipment operation.

[0035] 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.

[0036] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A turbomachinery cleaning system, characterized in that: The invention comprises an air supply device, a flushing device and a discharge device, wherein the air supply device is used to supply air to the flushing device, the flushing device is used to flush the volute (4) and the air inlet, and a gap is left between the flushing device and the impeller (12); the discharge device is used to discharge the flushing gas in the volute (4) and the air inlet box (5); the flushing device comprises an air inlet flushing unit (10) and a volute flushing unit (6), the air inlet flushing unit (10) is used to flush from the inlet direction of the impeller (12), the air inlet flushing unit (10) comprises a first air inlet pipe, an inlet nozzle (24) and a support assembly, the support assembly is mounted on a deflector (11) in the air inlet box (5), and the The support assembly is used to support a first air intake pipe and an inlet nozzle (24); the two sides of the first air intake pipe are respectively connected to the inlet nozzle (24) and a first delivery pipe (13) of an air supply device; the first air intake pipe and the inlet nozzle (24) are located in an air intake box (5); the volute flushing unit (6) is used to flush from the outlet direction of the impeller (12), the volute flushing unit (6) comprises a second air intake pipe and a flushing nozzle (29), the two sides of the second air intake pipe are respectively connected to the flushing nozzle (29) and a second delivery pipe (14) of the air supply device, and the second air intake pipe is installed on the volute (4); the flushing nozzle (29) is inserted into the volute (4).

2. A turbomachinery cleaning system according to claim 1, characterized in that: The discharge device comprises an air intake box discharge unit (9) and a volute discharge unit (7); the air intake box discharge unit (9) is connected to the bottom of the air intake box (5), and the volute discharge unit (7) is connected to the bottom of the volute (4); the air intake box discharge unit (9) and the volute discharge unit (7) both comprise a drain pipe (30) and a drain valve (31); the two sides of the drain pipe (30) are respectively connected to the drain valve (31) and the bottom of the volute (4) or the bottom of the air intake box (5).

3. A turbomachinery cleaning system according to claim 1, characterized in that: The first air intake pipe comprises a first flushing flange (16), a first connecting pipe (17), a first connecting block (18), a second connecting pipe (19) and a flexible joint (20) which are arranged in sequence; one side of the first connecting pipe (17) is connected to the first flushing flange (16); one end of the first delivery pipe (13) is fixed with a second flushing flange (15); the first flushing flange (16) and the second flushing flange (15) are fixed; the two sides of the first connecting block (18) are respectively detachably connected to the first connecting pipe (17) and the second connecting pipe (19); the two sides of the flexible joint (20) are respectively detachably connected to the second connecting pipe (19) and the inlet nozzle (24).

4. A turbomachinery cleaning system according to claim 1, characterized in that: The support assembly comprises a support plate (23), a pad (22) and a surrounding plate (21); an arc-shaped protrusion is provided in the middle of the surrounding plate (21), and the arc-shaped protrusion matches the shape of the inlet nozzle (24); the lower sides of the surrounding plate (21) and the inlet nozzle (24) are located on the pad (22), and the surrounding plate (21) is connected to the pad (22); the two sides of the support plate (23) are respectively connected to the pad (22) and the deflector (11).

5. A turbomachinery cleaning system according to claim 1, characterized in that: The second air intake pipe comprises a third flushing flange (26), a third connecting pipe (27) and a second connecting block (28); one side of the third connecting pipe (27) is connected to the third flushing flange (26); a fourth flushing flange (25) is fixed to one end of the second delivery pipe (14); the third flushing flange (26) is fixed to the fourth flushing flange (25); two sides of the second connecting block (28) are detachably connected to the third connecting pipe (27) and the flushing nozzle (29), respectively; the second connecting block (28) is fixed to the volute (4).

6. A turbomachinery cleaning system according to claim 2, characterized in that: A first sewage discharge flange (32) is fixed to one side of the sewage discharge pipe (30), and a second sewage discharge flange (33) is fixed to one side of the sewage discharge valve (31), and the first sewage discharge flange (32) and the second sewage discharge flange (33) are fixed.

7. A turbomachinery cleaning system according to claim 1, characterized in that: The outlet ends of the inlet nozzle (24) and the flushing nozzle (29) are both strip-shaped outlet structures (34).

8. A turbomachinery cleaning system according to claim 3 or 5, characterized in that: The detachable connection is a threaded connection.

9. A turbomachinery cleaning system according to claim 2, characterized in that: A sinking cavity (8) is provided at the bottom of the volute (4), and a sewage discharge pipe (30) of the volute discharge unit (7) is connected to the sinking cavity (8).

10. A turbomachinery cleaning system according to claim 1, characterized in that: The volute flushing units (6) are provided in two groups, and the two groups of volute flushing units (6) are respectively located on both sides of the volute (4).

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