Steam engine inner wall cleaning device

Abstract

A steam engine inner wall cleaning device belongs to the technical field of steam engine maintenance and comprises an annular cover, an inner gear ring is rotatably mounted in the annular cover, a mounting frame is fixedly mounted on the lower surface of the inner gear ring, and side dirt removing cutters are fixedly mounted on the left surface and the right surface of the mounting frame in an embedded mode and fixedly connected with the mounting frame through bolts. A sealing plate is fixedly installed on the upper surface of the annular cover, a motor is fixedly installed on the upper surface of the sealing plate, the output end of the motor is sleeved with a gear, the gear is in meshed connection with the inner gear ring, and a descaling liquid spraying device is arranged at the center of the lower surface of the sealing plate in a hoisting mode; the installation position of the whole driving mechanism is located above the inner cavity of the steam engine boiler, the occupied area of the installation space can be reduced, then the requirement for occupying the inner cavity of the boiler is lowered, and therefore the usable space of the inner cavity of the boiler is enlarged.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam engine maintenance, and in particular relates to a steam engine inner wall cleaning device. Background Art

[0002] After a long period of use, the inner wall of a steam engine boiler needs to be descaled using descaling equipment, otherwise it will affect the thermal efficiency and operational safety of the boiler.

[0003] After searching, the Chinese authorized patents in related fields are as follows:

[0004] The patent announcement number is: CN217031161U, and the patent name is: A steam engine inner wall cleaning device, whose structure specifically includes a bracket, an electric slip ring is embedded in the middle of the bracket, a main shaft is movably installed at the bottom of the electric slip ring, a slide groove is installed at the bottom of the main shaft, a slider A is movably installed above the slide groove, and a slider B is movably installed below the slide groove. Screw holes are opened in both sliders A and slider B, a servo motor is installed at the top of the main shaft, and a screw rod is installed at the bottom of the servo motor for transmission, and the screw rod passes through the screw hole; a rotating shaft A is installed at both ends of the slider A and the slider B, and movable arms are movably installed at both ends of the slider A and the slider B through the rotating shaft A, telescopic rods are installed on both sides below the main shaft, a rotating shaft B is installed on the outside of the telescopic rod, the movable arm is movably installed on the outside of the telescopic rod through the rotating shaft B, and a support plate is installed at the outer end of the telescopic rod.

[0005] The patent announcement number is: CN214094435U, and the patent name is: A steam engine boiler inner wall scale cleaning device, whose structure specifically includes a boiler body, a sealing cover is connected to the top of the boiler body, a support frame is fixedly connected to the top of the sealing cover, a drive motor is connected to the support frame, an output shaft is fixedly connected to the output end of the motor, the output shaft passes through the sealing cover, and multiple groups of fixed rods are fixedly connected to the outer wall of the output shaft located in the boiler body, and the multiple fixed rods are connected to the mounting rods through the mounting mechanism, and the end of the mounting rod is fixedly connected to a cleaning blade, and the output shaft is connected to two symmetrically arranged rotating shafts through a transmission mechanism.

[0006] With respect to the two devices for cleaning the inner wall of a steam engine boiler in the above-mentioned prior art, the mechanisms for driving the cleaning mechanisms are both arranged in the middle of the boiler cavity, resulting in a large installation space being occupied, affecting the use space of the boiler cavity. Therefore, another steam engine inner wall cleaning device is provided to solve the above-mentioned technical problems. Utility Model Content

[0007] With regard to the steam engine boiler inner wall cleaning device in the prior art, the installation space of the driving cleaning mechanism is relatively large, which affects the use space of the boiler inner cavity. The utility model provides a steam engine inner wall cleaning device, which arranges the inner gear ring and the gear in the annular cover, and arranges the motor above the sealing plate. The motor can use the linkage of the gear and the inner gear ring to drive the mounting frame with the side cleaning knife to rotate, so as to scrape and clean the scale on the inner wall of the steam engine boiler. The installation position of the entire driving mechanism is above the inner cavity of the steam engine boiler, which can reduce the space occupied, thereby reducing the space used for the boiler inner cavity, and effectively solves the problem that the installation space of the driving cleaning mechanism of the steam engine boiler inner wall cleaning device in the prior art is relatively large, which affects the use space of the boiler inner cavity. The specific technical scheme is as follows:

[0008] A steam engine inner wall cleaning device comprises an annular cover, an inner gear ring is rotatably mounted inside the annular cover, a mounting frame is fixedly mounted on the lower surface of the inner gear ring, side cleaning knives are embedded and fixedly mounted on the left and right surfaces of the mounting frame, a sealing plate is fixedly mounted on the upper surface of the annular cover, a motor is fixedly mounted on the upper surface of the sealing plate, a gear is sleeved and mounted on the output end of the motor, the gear is meshingly connected with the inner gear ring, and a descaling liquid spraying device is hoisted at the center of the lower surface of the sealing plate.

[0009] In the above technical solution, the descaling liquid spraying device includes a spraying disc, a water pump and a liquid storage tank. The spraying disc is suspended on the lower surface of the sealing plate by a hanging column. A plurality of nozzles are fixedly installed at equal intervals on the outer surface of the spraying disc. The water pump and the liquid storage tank are both fixedly installed on the upper surface of the sealing plate, and a transfer pipe is connected between the liquid inlet end of the water pump and the liquid storage tank and between the liquid outlet end of the water pump and the spraying disc.

[0010] In the above technical solution, the mounting frame is U-shaped, and a bottom cleaning knife is embedded and fixedly installed on the lower surface of the mounting frame;

[0011] In the above technical solution, an inner gear ring bearing is provided between the inner gear ring and the annular cover;

[0012] In the above technical solution, the rotation ratio of the gear and the inner ring gear is 20:1.

[0013] Compared with the prior art, the utility model of a steam engine inner wall cleaning device has the following beneficial effects:

[0014] 1. The utility model arranges the inner gear ring and the gear in the annular cover, and arranges the motor above the sealing plate. The motor can use the linkage between the gear and the inner gear ring to drive the mounting frame with the side cleaning knife to rotate, so as to scrape and clean the scale on the inner wall of the steam engine boiler. The installation position of the entire driving mechanism is above the inner cavity of the steam engine boiler, which can reduce the occupied area of ​​the installation space, thereby reducing the occupation demand of the boiler cavity, thereby expanding the usable space of the boiler cavity.

[0015] 2. The utility model installs a descaling liquid spraying device at the center of the lower surface of the sealing plate. While using the side descaling knife to remove water scale, the descaling liquid spraying device can be used to spray the descaling liquid on the inner wall of the steam engine boiler, so that chemical descaling and mechanical descaling can be carried out simultaneously, which can effectively improve the descaling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0019] Figure 4 for Figure 1 Enlarged view of the local structure at point a.

[0020] Figure 5 This is a schematic diagram of the U-shaped mounting frame structure of the utility model.

[0021] Figure 1-5 Among them: 1. annular cover; 11. sealing plate; 2. inner ring gear; 21. inner ring gear bearing; 3. motor; 31. gear; 4. mounting frame; 41. side cleaning knife; 42. bottom cleaning knife; 5. descaling liquid spraying device; 51. spraying disc; 511. nozzle; 52. water pump; 521. transfer pipe; 53. liquid storage tank. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0024] A steam engine inner wall cleaning device comprises an annular cover 1, an inner gear ring 2 is rotatably mounted in the annular cover 1, a mounting frame 4 is fixedly mounted on the lower surface of the inner gear ring 2, side cleaning knives 41 are embedded and fixedly mounted on the left and right surfaces of the mounting frame 4, the side cleaning knives 41 are fixedly connected to the mounting frame 4 through bolts, a sealing plate 11 is fixedly mounted on the upper surface of the annular cover 1, a motor 3 is fixedly mounted on the upper surface of the sealing plate 11, a gear 31 is sleeved and mounted on the output end of the motor 3, the gear 31 is meshed and connected with the inner gear ring 2, and a descaling liquid spraying device 5 is hoisted at the center of the lower surface of the sealing plate 11;

[0025] Before use, the annular cover 1 is installed to the top of the inner cavity of the steam engine boiler by bolts, the mounting frame 4 is extended into the inner cavity of the steam engine boiler, and the side cleaning knife 41 is attached to the inner wall of the steam engine boiler;

[0026] When using, combine Figure 1 Figure 3 and Figure 4 As shown, the motor 3 is connected to the power supply and started. The motor 3 can drive the mounting frame 4 to rotate through the linkage of the gear 31 and the inner gear ring 2, thereby driving the side cleaning knife 41 to rotate along the inner wall of the steam engine boiler to achieve the side wall scale scraping work. During the scraping process, the descaling liquid spraying device 5 can also be used to spray the descaling liquid on the inner side of the steam engine boiler, thereby accelerating the descaling efficiency. Compared with the prior art, the device drives the mounting frame and the side cleaning knife 41 to work through the motor 3, the gear 31 and the inner gear ring 2, which can reduce the occupied area of ​​the installation space, thereby reducing the occupation demand of the boiler cavity, thereby expanding the usable space of the boiler cavity.

[0027] It should be noted that if Figure 1 As shown, the descaling liquid spraying device 5 includes a spraying disc 51, a water pump 52 and a liquid storage tank 53. The spraying disc 51 is suspended on the lower surface of the sealing plate 11 by a hanging column. A plurality of nozzles 511 are fixedly installed at equal intervals on the outer surface of the spraying disc 51. The spraying ranges of two adjacent nozzles 511 are partially covered, so that the nozzles 511 can spray the descaling agent on the upper side wall of the inner cavity of the steam engine boiler in all directions. The water pump 52 and the liquid storage tank 53 are both fixedly installed on the upper surface of the sealing plate 11, and a transfer pipe 521 is connected between the liquid inlet end of the water pump 52 and the liquid storage tank 53 and between the liquid outlet end of the water pump 52 and the spraying disc 51.

[0028] When the descaling liquid spraying device 5 is in use, it is necessary to first inject the descaling liquid into the liquid storage tank 53, then connect the water pump 52 to the power supply and start it, and use the water pump 2 to pump the descaling liquid in the liquid storage tank 53 into the spray plate 51 through the transfer pipe 521 at high pressure, and spray it toward the upper side wall of the inner cavity of the steam engine boiler with the help of multiple nozzles 511. The sprayed descaling liquid slides down along the upper side wall of the inner cavity of the steam engine boiler. During the sliding process, the descaling liquid can accelerate the sliding speed as the side cleaning knife 41 rotates, and reacts with the scale on the lower side wall of the inner cavity of the steam engine boiler, thereby realizing chemical descaling.

[0029] In addition, in order to facilitate the cleaning of scale on the lower surface of the inner cavity of the steam engine boiler, Figure 3 As shown, the mounting frame needs to be set to a U shape, and a bottom cleaning knife 42 is embedded and fixedly installed on the lower surface of the mounting frame 4. The bottom cleaning knife 42 is fixedly connected to the mounting frame 4 by bolts. Before the entire device is installed, it is necessary to customize the mounting frame 4 with a suitable height according to the inner cavity depth of the steam engine boiler. After the mounting frame 4 is installed in the inner cavity of the steam engine boiler, it is necessary to make the lower surface of the bottom cleaning knife 42 fit with the bottom of the inner cavity of the steam engine boiler, thereby meeting the demand for cleaning the bottom of the inner cavity of the steam engine boiler.

[0030] Specifically, an inner gear ring bearing 21 is provided between the inner gear ring 2 and the annular cover 1 , and the inner gear ring 2 is rotatably mounted in the annular cover 1 via the inner gear ring bearing 21 .

[0031] Finally, in order to prevent the mounting frame 4, the side cleaning knife 41 and the bottom cleaning knife 42 from rotating too fast, which would throw the descaling liquid away from the inner cavity side wall of the steam engine boiler, the rotation ratio of the gear 31 and the inner ring 2 needs to be 20:1. Under this rotation ratio, the rotation speed of the inner ring 2 is relatively low, and it is easy to use the side cleaning knife 41 to accelerate the descaling liquid to slide down.

Claims

1. A steam engine inner wall cleaning device, comprising an annular cover (1), characterized in that: An inner gear ring (2) is rotatably mounted inside the annular cover (1), and a mounting frame (4) is fixedly mounted on the lower surface of the inner gear ring (2), and side cleaning knives (41) are embedded and fixedly mounted on the left and right surfaces of the mounting frame (4). A sealing plate (11) is fixedly mounted on the upper surface of the annular cover (1), and a motor (3) is fixedly mounted on the upper surface of the sealing plate (11). A gear (31) is sleeved and mounted on the output end of the motor (3), and the gear (31) is meshingly connected with the inner gear ring (2). A descaling liquid spraying device (5) is hoisted at the center of the lower surface of the sealing plate (11).

2. A steam engine inner wall cleaning device according to claim 1, characterized in that: The descaling liquid spraying device (5) comprises a spraying disc (51), a water pump (52) and a liquid storage tank (53); the spraying disc (51) is suspended on the lower surface of the sealing plate (11) by means of a suspension column; a plurality of nozzles (511) are fixedly installed at equal intervals on the outer surface of the spraying disc (51); the water pump (52) and the liquid storage tank (53) are both fixedly installed on the upper surface of the sealing plate (11); and a transfer pipe (521) is connected between the liquid inlet end of the water pump (52) and the liquid storage tank (53) and between the liquid outlet end of the water pump (52) and the spraying disc (51).

3. A steam engine inner wall cleaning device according to claim 1, characterized in that: The mounting frame (4) is U-shaped, and a bottom cleaning knife (42) is embedded and fixedly mounted on the lower surface of the mounting frame (4).

4. A steam engine inner wall cleaning device according to claim 1, characterized in that: An inner gear ring bearing (21) is provided between the inner gear ring (2) and the annular cover (1).

5. The steam engine inner wall cleaning device according to claim 1, characterized in that: The rotation ratio between the gear (31) and the inner gear ring (2) is 20:1.

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