Cleaning device for accumulated oxide skin of boiler heating surface pipe

Abstract

The utility model provides a boiler heating surface pipe accumulated oxide skin cleaning device, which relates to the technical field of boiler heating surface pipe oxide skin cleaning, and comprises a guide pipe and a cleaning head, the initial distance between the roller frames and the side edge of the cleaning head is adjusted by rotating the lead screw, it can be guaranteed that when the cleaning head is placed into the face pipe, the multiple roller frames can be closest to the inner wall of the face pipe, all the traction ropes are wound through rotation of the winding roll, and the socket moves in the direction away from the center axis of the cleaning head through traction of the traction ropes; when the socket drives the lead screw and the roller carriers to move in the direction away from the center axis of the cleaning head, the corresponding spring rods can elastically extend till all the roller carriers at one end of the cleaning head abut against the inner wall of the face pipe, the cleaning head can be conveniently used in face pipes of different sizes, and it is guaranteed that the cleaning head and the face pipe are coaxial.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler heating surface tube oxide skin cleaning technical field especially relates to a kind of boiler heating surface tube oxide skin cleaning device. BACKGROUND

[0002] Boiler heating surface tube oxide skin cleaning is the important link of boiler maintenance, so a kind of boiler heating surface tube oxide skin cleaning device, the device is placed in the end of the pipe to be cleaned when the surface pipe needs to be cleaned, the surface pipe is inserted into the clamping area, and the cleaning head enters the surface pipe, and the end of the surface pipe is clamped and fixed by rotating the knob to drive the clamping plate. Then start the pump, supply air to the annular air bag and the catheter, the annular air bag forms a seal after inflation, and the catheter supplies air and is blown out through the spray hole on the cleaning head, blowing the debris on the inner wall of the pipeline away, and blowing out of the pipeline from the other side. At the same time, the cleaning head moves forward under the action of air flow, thereby realizing the cleaning of the whole pipeline. After cleaning, the motor is started to re-wind the catheter, and the cleaning head is recovered, and then the clamping plate is loosened, so that the device is separated from the surface pipe.

[0003] However, when the cleaning head travels in the surface pipe, in order to prevent the cleaning head from tilting, the side edge of the cleaning head needs to be connected with the inner wall of the surface pipe, that is, the cleaning head used in the prior art can only be applied to a single diameter boiler heating surface pipe, which limits the application range of the prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems in the prior art and provides a boiler heating surface tube oxide skin cleaning device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a boiler heating surface tube oxide skin cleaning device, comprising a catheter and a cleaning head, a plurality of spring rods are arranged in an annular array around the center axis of the cleaning head at the edge of one end of the cleaning head, a socket is arranged at the position close to any spring rod of the cleaning head, a screw rod is screwed through one end of the socket on the same side of the spring rod telescopic rod, a roller frame is fixedly installed at the telescopic end of the spring rod and rotationally connected with the end face of the adjacent screw rod, a plurality of rollers for rolling connection with the inner wall of the surface pipe are arranged in the roller frame, a take-up reel is installed at the center of one end of the cleaning head, a traction rope is installed at one end of the socket close to the take-up reel, the traction rope extends along the telescopic direction of the adjacent spring rod and penetrates the edge of one end of the cleaning head, and the traction rope penetrates the edge of one end of the cleaning head and is wound on the take-up reel after penetrating the part close to the center of one end of the cleaning head.

[0006] Preferably, two electric telescopic rods are symmetrically and fixedly installed at one end of the cleaning head, and the two electric telescopic rods are telescopically extended along the radius direction of the cleaning head, and the telescopically extended end of the electric telescopic rod is fixedly installed with an anti-skid piece for abutting against the inner wall of the surface pipe.

[0007] Preferably, a connecting head is fixedly installed at the other end of the cleaning head, and a three-way valve is arranged at one end of the connecting head, and a gas bag is fixedly installed at the side of the cleaning head and connected with one end valve port of the three-way valve.

[0008] Preferably, a ring groove is arranged at the other end of the cleaning head near the edge, and a ring cover is rotatably connected with the ring groove, and a plurality of jet pipes are fixedly installed on the surface of the ring cover and arranged in an annular array around the inclined setting and the central axis of the cleaning head.

[0009] Preferably, a gas cavity is arranged at the other end of the cleaning head, a plurality of jet channels are arranged at the edge of the cavity bottom, and the gas outlets of the jet channels are extended to the edge of the other end of the cleaning head and arranged in an annular array around the central axis of the cleaning head.

[0010] Preferably, a spacer ring is fixedly installed at the other end of the cleaning head and coaxially arranged in the connecting head, the outer side wall and the port of the spacer ring are gap-fitted with the inner side wall of the connecting head, and the cleaning head is arranged with a gas supply channel at the gap between the spacer ring and the connecting head and communicated with the ring groove.

[0011] Preferably, an electric push rod is fixedly installed in the gas cavity and coaxially arranged, the telescopically extended end of the electric push rod is fixedly installed with a sealing plug in the spacer ring, one end of the sealing plug is used for plugging the gap between the port of the spacer ring and the inner side wall of the connecting head, and the other end of the sealing plug is used for plugging the cavity opening.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、In the utility model, the initial distance between the roller frame and the side edge of the cleaning head is adjusted by the rotating screw rod, so that when the cleaning head is put into the surface pipe, the roller frames can be closest to the inner wall of the surface pipe, all the traction ropes are wound by the rotating reel, the socket is moved away from the central axis of the cleaning head by the traction of the traction rope, the spring rod corresponding to the socket, the screw rod and the roller frame are moved away from the central axis of the cleaning head at the same time, and the spring rod is elastically elongated until all the roller frames at one end of the cleaning head abut against the inner wall of the surface pipe, so that the cleaning head can be used in surface pipes of different sizes and the coaxiality between the cleaning head and the surface pipe is ensured.

[0014] 2、In the utility model, the gas flowing in the guide pipe can enter the gas bag through the three-way valve and make the gas bag expand and adhere to the inner wall of the surface pipe, so that when the cleaning head returns in the subsequent pulling and moving of the guide pipe, the expanded gas bag can take out the debris not blown out of the surface pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of a boiler heating surface pipe accumulated oxide skin cleaning device is provided for the utility model;

[0016] Figure 2 A three-dimensional structure schematic diagram of a boiler heating surface pipe accumulated oxide skin cleaning device is provided for the utility model Figure 1 A rear view structure schematic diagram of a boiler heating surface pipe accumulated oxide skin cleaning device is provided for the utility model;

[0017] Figure 3 A three-dimensional structure schematic diagram of a boiler heating surface pipe accumulated oxide skin cleaning device is provided for the utility model;

[0018] Figure 4 A Figure 3 enlarged view of A in the figure.

[0019] Legend: 1, catheter; 2, cleaning head; 3, air bag; 4, jet channel; 5, ring cover; 6, jet pipe; 7, connector; 8, three-way valve; 9, roller frame; 10, spring rod; 11, lead screw; 12, socket; 13, traction rope; 14, winding disc; 15, electric telescopic rod; 16, anti-skid piece; 17, ring groove; 18, air supply channel; 19, air cavity; 20, electric push rod; 21, spacer ring; 22, sealing plug. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described below in combination with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0022] As Figures 1-4As shown, a boiler heating surface tube scale cleaning device, including a guide pipe 1 and a cleaning head 2, a plurality of spring rods 10 are inserted into the edge of one end of the cleaning head 2 in an annular array about the central axis of the cleaning head 2, a socket 12 is inserted into the position close to any spring rod 10 of the cleaning head 2, a screw rod 11 is threaded through one end of the socket 12 on the same side of the telescopic rod of the spring rod 10, a roller frame 9 is fixedly installed on the end of the telescopic rod of the spring rod 10 and rotatably connected with the end face of the adjacent screw rod 11, a plurality of rollers for rolling connection with the inner wall of the surface tube are arranged in the roller frame 9, during use, by rotating the screw rod 11, the screw rod 11 is moved relative to the socket 12 and the roller frame 9 by rotating the screw rod 11 relative to the socket 12, the initial distance between the roller frame 9 and the side edge of the cleaning head 2 can be adjusted, so that when the cleaning head 2 is put into the surface tube, the plurality of roller frames 9 can be closest to the inner wall of the surface tube, therefore, during actual operation, only a small distance is moved by pulling the socket 12, the rollers in the plurality of roller frames 9 can be tightly abutted against the inner wall of the surface tube, and the cleaning head 2 is stably fixed in the surface tube: a winding reel 14 is installed at the center of one end of the cleaning head 2, a traction rope 13 is installed at one end of the socket 12 close to the winding reel 14, one end of the traction rope 13 extends along the telescopic direction of the adjacent spring rod 10 and penetrates the edge of one end of the cleaning head 2, after penetrating the edge of one end of the cleaning head 2, the traction rope 13 penetrates the part close to the center of one end of the cleaning head 2 and is wound on the winding reel 14, the winding reel 14 used in the scheme can be an electric winding reel commonly used and known on the market, all the traction ropes 13 are wound by rotating the winding reel 14, the socket 12 is moved away from the central axis of the cleaning head 2 by the traction of the traction rope 13, the socket 12 drives the screw rod 11 and the roller frame 9 to move away from the central axis of the cleaning head 2, and the corresponding spring rod 10 is elastically elongated at the same time, until all the roller frames 9 of the cleaning head 2 abut against the inner wall of the surface tube.

[0023] In order to fix the relative position of the cleaning head 2 and the surface tube: two electric telescopic rods 15 are symmetrically fixedly installed at one end of the cleaning head 2, the electric telescopic rods 15 are telescopic along the radius direction of the cleaning head 2 and the telescopic end of the electric telescopic rod 15 is fixedly installed with an anti-skid piece 16 for abutting against the inner wall of the surface tube, when the cleaning head 2 needs to stay in the surface tube for a period of time, under the condition that the rollers in the plurality of roller frames 9 abut against the inner wall of the surface tube, the anti-skid piece 16 is moved to tightly adhere to the inner wall of the surface tube by elongating the electric telescopic rod 15, and the relative position of the cleaning head 2 and the surface tube is locked and fixed by the friction force between the anti-skid piece 16 and the surface tube.

[0024] In order to conveniently take out the debris blown in the surface pipe: the other end of the cleaning head 2 is fixedly provided with a connecting head 7, one end of the connecting head 7 is provided with a three-way valve 8, one end of the three-way valve 8 is connected with an air bag 3 fixedly arranged on the side of the cleaning head 2, and the three-way valve 8 is internally provided with an electromagnetic valve in each valve port, so that the corresponding valve port can be conveniently opened or closed by the electromagnetic valve, and therefore the gas in the conduit 1 can enter the air bag 3 through the three-way valve 8 and make the air bag 3 expand and adhere to the inner wall of the surface pipe, so that when the cleaning head 2 returns along the conduit 1, the expanded air bag 3 can take out the debris in the surface pipe which is not blown out.

[0025] In order to conveniently clean the debris blown in the surface pipe: the other end of the cleaning head 2 is provided with a ring groove 17 near the edge, the ring groove 17 is rotatably connected with a ring cover 5, a plurality of jet pipes 6 which are arranged in an inclined manner and are arranged in a ring array around the central axis of the cleaning head 2 are fixedly arranged on the surface of the ring cover 5, a gas cavity 19 is arranged at the other end of the cleaning head 2, a plurality of jet channels 4 are arranged at the edge of the cavity bottom of the gas cavity 19, the gas outlets of the jet channels 4 extend to the edge of the other end of the cleaning head 2 and are arranged in a ring array around the central axis of the cleaning head 2, a partition ring 21 which is coaxially arranged in the connecting head 7 is fixedly arranged at the other end of the cleaning head 2, the outer side wall and the port of the partition ring 21 are in gap cooperation with the inner side wall of the connecting head 7, and the cleaning head 2 is arranged at the gap between the partition ring 21 and the connecting head 7 and is provided with a gas supply channel 18 which is in communication with the groove of the ring groove 17, a plurality of electric push rods 20 which are arranged in a coaxial manner are fixedly arranged in the gas cavity 19, a sealing plug 22 which is arranged in the partition ring 21 is fixedly arranged at the extension end of the electric push rod 20, one end of the sealing plug 22 is used for plugging the gap between the port of the partition ring 21 and the inner side wall of the connecting head 7, and the other end of the sealing plug 22 is used for plugging the cavity opening of the gas cavity 19. Figure 3 and Figure 4 As shown in the figure, the front end of the sealing plug 22 blocks the gap between the port of the partition ring 21 and the inner side wall of the connecting head 7, so that the gas flow in the conduit 1 can enter the partition ring 21 and then enter the gas cavity 19 through the partition ring 21, and then is sprayed out through the jet channels 4 on the cavity wall of the gas cavity 19, so as to push the cleaning head 2 to move in the surface pipe, when the oxide skin in the surface pipe needs to be cleaned, the cleaning head 2 is fixed in the surface pipe, then the electric push rod 20 is retracted to block the cavity opening of the gas cavity 19 with the other end of the sealing plug 22, and the front end of the sealing plug 22 is separated from the gap between the port of the partition ring 21 and the inner side wall of the connecting head 7, so that the gas flow in the conduit 1 can enter the connecting head 7 along the partition ring 21, enter the ring groove 17 through the gas supply channel 18, and finally be sprayed out through the jet pipes 6 on the ring cover 5, and because the jet pipes 6 are arranged in an inclined manner, when the jet pipes 6 spray out the air, the ring cover 5 rotates, so as to drive the plurality of jet pipes 6 to rotate, so that the sprayed gas flow presents a spiral shape and can uniformly cover the inner wall of the surface pipe, so as to clean the oxide skin on the inner wall of the surface pipe, and the spiral-shaped gas flow can also push the cleaning head 2 to move in the surface pipe.

[0026] The working principle is that one end of the conduit 1 is connected with the valve port of one end of the three-way valve 8, air is transported through the conduit 1 by connecting the other end of the conduit 1 with the air pump, the cleaning head 2 is placed into the surface pipe, and the roller frame 9 is moved to be attached to the inner wall of the surface pipe by winding the traction rope 13 by the winding reel 14; when the cleaning head 2 needs to be moved in the surface pipe, the gap between the end port of the partition ring 21 and the inner wall of the connecting head 7 is sealed by the front end of the sealing plug 22, therefore, the airflow in the conduit 1 can enter the partition ring 21, and then enter the air cavity 19 through the partition ring 21, and then is sprayed out through the air injection channel 4 on the cavity wall of the air cavity 19, so that the cleaning head 2 can be moved in the surface pipe, after moving for a distance, the anti-skid piece 16 is moved to be tightly attached to the inner wall of the surface pipe by the extension of the electric telescopic rod 15, the relative position between the cleaning head 2 and the surface pipe is locked and fixed by the friction force between the anti-skid piece 16 and the surface pipe, then the other end of the sealing plug 22 seals the cavity port of the air cavity 19, and the gap between the front end and the end port of the partition ring 21 and the inner wall of the connecting head 7 is separated, therefore, the airflow in the conduit 1 can enter the connecting head 7 along the partition ring 21, and then enter the ring groove 17 through the air supply channel 18, and finally is sprayed out through the air injection pipe 6 on the ring cover 5, the sprayed airflow presents a spiral shape, can uniformly cover the inner wall of the surface pipe, and realizes the cleaning of the oxide skin on the inner wall of the surface pipe.

[0027] The wiring diagram of the three-way valve 8, the electric telescopic rod 15 and the electric push rod 20 in the utility model belongs to the common knowledge in the field, the working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the three-way valve 8, the electric telescopic rod 15 and the electric push rod 20 are not explained in detail.

[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the above embodiment according to the technical essence of the utility model without departing from the technical scheme content of the utility model still belongs to the protection scope of the utility model technical scheme.

Claims

1. A device for cleaning scale buildup on boiler heating surface tubes, comprising a guide tube (1) and a cleaning head (2), characterized in that: A plurality of spring rods (10) arranged in a circular array about the central axis of the cleaning head (2) are inserted into one end edge. A socket (12) is inserted into each spring rod (10) near the cleaning head (2). A lead screw (11) is threaded through one end of the socket (12) on the same side as the telescopic rod of the spring rod (10). A roller frame (9) is fixedly installed at the telescopic end of the spring rod (10) and rotatably connected to the end face of the adjacent lead screw (11). The roller frame (9) contains... Multiple rollers are used for rolling connection with the inner wall of the face tube. A winding reel (14) is installed at the center of one end of the cleaning head (2). A traction rope (13) is installed at the end of the socket (12) near the winding reel (14). One end of the traction rope (13) extends along the extension and retraction direction of the adjacent spring rod (10) and passes through the edge of one end of the cleaning head (2). After passing through the edge of one end of the cleaning head (2), the traction rope (13) passes through the center part of one end of the cleaning head (2) and is wound on the winding reel (14).

2. The boiler heating surface tube oxide scale cleaning device according to claim 1, characterized in that: Two electric telescopic rods (15) are symmetrically fixedly installed at one end of the cleaning head (2). The two electric telescopic rods (15) extend and retract along the radial direction of the cleaning head (2), and the telescopic ends of the electric telescopic rods (15) are fixedly installed with anti-slip plates (16) for abutting against the inner wall of the face tube.

3. The boiler heating surface tube scale cleaning device according to claim 1, characterized in that: A connector (7) is fixedly installed at the center of the other end of the cleaning head (2). A three-way valve (8) is provided at one end of the connector (7). An airbag (3) fixed to the side of the cleaning head (2) is connected to one end of the three-way valve (8).

4. The boiler heating surface tube oxide scale cleaning device according to claim 3, characterized in that: The other end of the cleaning head (2) is provided with an annular groove (17) near the edge. The opening of the annular groove (17) is rotatably connected to an annular cover (5). Several jet pipes (6) are fixedly installed on the surface of the annular cover (5), which are arranged in an inclined manner and distributed in a ring array around the central axis of the cleaning head (2).

5. The boiler heating surface tube oxide scale cleaning device according to claim 3, characterized in that: The cleaning head (2) has an air chamber (19) at the center of the other end. The bottom edge of the air chamber (19) has several jet channels (4). The outlets of the several jet channels (4) extend to the edge of the other end of the cleaning head (2) and are distributed in a ring array around the central axis of the cleaning head (2).

6. The boiler heating surface tube oxide scale cleaning device according to claim 5, characterized in that: The cleaning head (2) has a coaxially arranged spacer (21) fixedly installed at the center of the other end and located inside the connector (7). The outer wall and port of the spacer (21) are fitted with the inner wall of the connector (7) with a clearance. The cleaning head (2) is located at the gap between the spacer (21) and the connector (7) and has an air supply channel (18) communicating with the groove of the ring groove (17).

7. The boiler heating surface tube oxide scale cleaning device according to claim 5, characterized in that: An electric push rod (20) is fixedly installed in the air chamber (19) and is coaxially distributed. A sealing plug (22) located in the spacer ring (21) is fixedly installed at the telescopic end of the electric push rod (20). One end of the sealing plug (22) is used to block the gap between the port of the spacer ring (21) and the inner wall of the connector (7), and the other end of the sealing plug (22) is used to block the opening of the air chamber (19).

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