CN210398957U

CN210398957U - Automatic ash removal device for boiler heat exchange tube

Info

Publication number: CN210398957U
Application number: CN201920969928.9U
Authority: CN
Inventors: 陈建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-24
Anticipated expiration: 2029-06-26

Abstract

The utility model relates to an electric power, petroleum, chemical production equipment field especially relate to an automatic ash removal device of boiler heat exchange tube, be equipped with the deashing pole of cutting clearance mechanism including the top, link to each other and control the accurate positioning mechanism who gets into the boiler heat exchange tube of deashing pole with the deashing pole, drive positioning mechanism and the motor of deashing pole to and the PLC controller, the effect of automatic deashing has been realized to this device, no longer needs personnel to carry out manual cleaning operation, has kept apart personnel and the boiler equipment of high fever, has avoided the potential safety hazard, has improved the operating efficiency simultaneously, labour saving and time saving.

Description

Automatic ash removal device for boiler heat exchange tube

Technical Field

The utility model relates to an electric power, petroleum, chemical production equipment field especially relate to a boiler heat exchange tube ash removal device.

Background

Dust is easily generated in the combustion process of electric power, petroleum and chemical production, a part of dust particles are adhered to the wall of the heated surface pipe, so that the heat transfer efficiency is greatly reduced, the heat transfer resistance is increased after the heated surface is settled with the dust, the heat absorption capacity of working media in the pipe is reduced, the temperature of the working media at the outlet of the boiler is increased, and the normal operation of a production device is influenced, so that the dust on the heat exchange pipe of the boiler needs to be effectively cleaned. The manual deashing operation of the manual work of the adoption is mostly cleared up to the boiler heat exchange tube among the prior art, and there are a great deal of drawbacks in the mode of artifical mediation: 1. the labor intensity of personnel is high; 2. the labor cost of personnel is high; 3. safety accidents are easily caused, the temperature in the boiler is high, after the dredging tool (steel pipe) in the hand of an operator enters the boiler for operation, the dredging tool also has high temperature, the operator is easily scalded, and the operator is easily influenced by factors such as fatigue and the like to cause the safety accidents; 4. due to the influences of factors such as low personnel operating efficiency, operation proficiency and the like, when ash removal operation is carried out, the phenomenon that the boiler is opened for too long time often occurs, so that technological parameters deviate from control, and the normal operation of the device is seriously influenced.

Disclosure of Invention

The features and advantages of the present invention are set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the invention.

In order to overcome the problems of the prior art, the utility model provides an automatic dust removing device for a boiler heat exchange tube, which comprises a dust removing rod, a positioning mechanism, a motor and a PLC (programmable logic controller), wherein the top of the dust removing rod is provided with a cutting and cleaning mechanism;

the positioning mechanism comprises a hydraulic lifting platform for supporting the ash removal rod to ascend and descend, a front-back running guide rail which is arranged on the hydraulic lifting platform and drives the ash removal rod to reciprocate along the axial direction of the heat exchange tube, and a left-right running guide rail which is arranged on the hydraulic lifting platform and controls the ash removal rod to reciprocate along the horizontal direction.

Preferably, the cutting and cleaning mechanism arranged at the top of the ash removal rod comprises a base and a cutting knife, wherein the base is connected with the ash removal rod at the bottom, and the cutting knife is arranged at the top of the base and is sunken towards the direction of the base in the center.

Preferably, the dust removing device further comprises a sliding block connected to the left and right running guide rails in a sliding mode, a left and right running motor arranged on the sliding block and used for controlling the dust removing rod to run left and right in a reciprocating mode, and a rotating motor connected with the dust removing rod and used for controlling the dust removing rod to rotate.

Preferably, the dust removing device also comprises a dust removing rod positioner arranged on the dust removing rod and a movable dust removing rod supporting frame movably connected with the dust removing rod through the dust removing rod positioner.

Preferably, a hydraulic rod is fixedly arranged at the bottom of the hydraulic lifting platform.

The utility model has the advantages that: accurate effectual heat transfer mouth of pipe position to need the clearance with the deashing pole location through positioning mechanism, dust in to the heat transfer pipe is effectively cleared up through the fore-and-aft operation guide rail, cooperation through PLC and driving motor, reach the effect of automatic deashing, no longer need personnel to carry out manual cleaning operation, the boiler equipment of personnel with high fever has been kept apart, the potential safety hazard has been avoided, the operating efficiency is improved simultaneously, avoided opening because of the boiler and lead to the influence that heat loss produced the device for a long time, time saving and labor saving, and device overall design is novel, therefore, the clothes hanger is strong in practicability, and the clothes hanger is easy to popularize and use.

Drawings

The advantages and mode of realisation of the invention will become more apparent hereinafter by describing in detail the invention with reference to the attached drawings, wherein the content shown in the drawings is only for explaining the invention, without constituting any limitation to the meaning of the invention, in which:

FIG. 1 is a schematic view of a heat exchange tube of a boiler in an embodiment of the present invention

Fig. 2 in the embodiment of the utility model provides an in the front view of automatic ash removal device of boiler heat exchange tube

Fig. 3 in the embodiment of the utility model provides an in a boiler heat exchange tube automatic ash removal device's plan view

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the device comprises a boiler-100, heat exchange tubes-101, a hydraulic lifting platform-200, front and rear running guide rails-210, hydraulic rods-220, a beam-230, a front and rear running driving motor-240, left and right running guide rails-250, left and right running guide rail supports-251, a sliding block-260, a left and right running driving motor-261, an ash removal rod-300, a rotating motor-310, an ash removal rod positioner-320, a movable ash removal rod support frame-330, a base-340 and a cutting knife-350.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 3, the utility model provides an automatic ash removal device for a boiler heat exchange tube, which comprises an ash removal rod 300 with a cutting and cleaning mechanism at the top, a positioning mechanism connected with the ash removal rod 300 and controlling the ash removal rod 300 to accurately enter the boiler heat exchange tube 110, a driving motor driving the positioning mechanism and the ash removal rod 300, and a PLC controller (not shown in the figure);

the positioning mechanism comprises a hydraulic lifting platform 200 for supporting the ash removing rod 300 to ascend and descend, a front and back running guide rail 210 which is arranged on the hydraulic lifting platform 200 and drives the ash removing rod 300 to reciprocate along the axial direction of the heat exchange tube 110, and a left and right running guide rail 250 which is arranged on the hydraulic lifting platform 200 and controls the ash removing rod 300 to reciprocate along the horizontal direction.

Furthermore, the PLC (not shown in the figure) is preferably in a Siemens S7-1200 type, and the PLC achieves the effect of controlling the operation of each mechanism through wired or wireless connection with each mechanism of the device.

Further, as shown in fig. 2 and fig. 3, as an embodiment of the present invention, a left and right operation rail bracket 251 is disposed on the hydraulic lifting platform 200, the left and right operation rail bracket 251 is fixed on the cross beam 230 slidably connected to the front and rear operation rails 210, and is used for fixing the front and rear operation driving motor 240 and the speed reducer (not shown in the figure) of the left and right operation rails 250 and the fixed driving ash removal rod 300, which are reciprocally operated front and rear, so as to ensure the stability of the operation of the device. Of course, the function of the device can be realized by fixing the front-back operation driving motor 240 and the speed reducer (not shown in the figure) for driving the ash removal rod 300 to reciprocate back and forth on the hydraulic lifting platform 200 without the left-right operation guide rail bracket 251, and directly sliding the left-right operation guide rail 250 on the front-back operation guide rail 210, and the device is not limited herein as long as the front-back and left-right movement of the ash removal rod 300 can be realized.

Further, the dust removing device further comprises a slide block 260 slidably connected to the left and right running guide rails 250, a left and right running driving motor 261 and a speed reducer (not shown) provided on the slide block 260, and a rotating motor 310 and a speed reducer (not shown) connected to the dust removing rod 300 and controlling the dust removing rod 300 to rotate. The output end of the rotating motor 310 is connected with the ash removal rod 300, so that the effect of controlling the rotation of the ash removal rod 300 provided with the cutting and cleaning mechanism is achieved, and dust adhered to the heat exchange tube 110 can be better cleaned. The material of deashing pole 300 is preferably high temperature resistant stainless steel pipe material, and obviously, other high temperature resistant metal material is also applicable to this device.

Further, the cutting and cleaning mechanism is integrally or detachably connected to the top of the ash removal rod 300, and the cutting and cleaning mechanism comprises a base 340 with the bottom connected with the ash removal rod 300, and a cutting blade 350 which is arranged at the top of the base 340 and the center of which is concave towards the direction of the base. The base 340 may be directly and integrally connected to the top of the ash removal rod 300, or may be detachably connected to the top of the ash removal rod 300 through a fastener, a slot, and the like, which is not limited herein. The edge of the cutting blade 350 is located around the cutting blade 350, and the center of the cutting blade 350 forms a depression towards the direction of the base 340, which can help the cutting blade 350 to better cut off dust attached on the heat exchange tube 110. The cutting blade 350 may be a disk-shaped blade having a certain arc shape in the center, or may be a rectangular blade fixed around the top periphery of the base 340 to form a central groove, i.e., a cavity-shaped recess for accommodating dust may be formed, and the blade portion of the cutting blade 350 may be located at the peripheral edge of the periphery of the cutting blade 350, where the shape of the cutting blade 350 is not particularly limited.

Further optimizing the technical scheme, as shown in fig. 3, the dust removing rod positioning device 320, the movable dust removing rod supporting frame 330 movably connected with the dust removing rod 300 through the dust removing rod positioning device 320, the rotating motor 310 for controlling the dust removing rod 300 to rotate for dust removal, and a speed reducer (not shown in the figure) are further included. The ash removal rod 300 is accurately positioned by the ash removal rod positioner 320 arranged on the ash removal rod 300 so as to ensure that the ash removal rod 300 accurately enters the heat exchange tube 110 for ash removal operation. The ash removal rod positioner 320 is preferably a common electric valve positioner or an intelligent electric valve positioner, and the preferred model is a siemens SIPART PS2 intelligent electric valve positioner, which can be specifically selected according to actual requirements as long as an effective positioning function can be realized, and is not specifically limited herein. Because deashing pole 300 length is longer, consequently support deashing pole 300 through portable deashing pole support frame 330 to prevent the deformation of deashing pole 300 because of gravity and resistance result in, in order to avoid fixing a position inaccurately. The movable ash removal rod support frame 330 can be fixedly arranged on the front-back moving guide rail 210, can also be arranged on the front-back moving guide rail 210 in a sliding manner, and certainly, can also be arranged on the front-back moving guide rail 210 in a sliding manner through a support and other devices, namely, only the support function of the ash removal rod 300 can be realized, and the movement of the ash removal rod 300 is not interfered, and the specific limitation is not provided here.

Further, as shown in fig. 2, a hydraulic rod 220 is fixedly arranged at the bottom of the hydraulic lifting platform 200. The hydraulic rod 220 may be directly fixed to the ground or to the equipment, and after the hydraulic rod is fixed, the hydraulic lifting platform 200 needs to be horizontally corrected. The hydraulic elevating platform 200 is supported to be elevated and lowered by the ascending and descending movement of the hydraulic lever 220.

The preferred embodiments of the present invention have been described with reference to the accompanying drawings, and those skilled in the art can implement the present invention in various modifications without departing from the scope and spirit of the present invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the specification and the drawings of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides an automatic ash removal device of boiler heat exchange tube which characterized in that: the device comprises an ash removing rod, a positioning mechanism, a motor and a PLC, wherein the top of the ash removing rod is provided with a cutting and cleaning mechanism;

2. The automatic ash removing device for the heat exchange tube of the boiler as claimed in claim 1, wherein the cutting and cleaning mechanism arranged at the top of the ash removing rod comprises a base with the bottom connected with the ash removing rod and a cutting knife arranged at the top of the base and with the center depressed towards the base.

3. The automatic ash removal device for the heat exchange tube of the boiler as claimed in claim 1, further comprising a slider slidably connected to the left and right running guide rails, a left and right running motor disposed on the slider for controlling the ash removal rod to reciprocate left and right, and a rotating motor connected to the ash removal rod for controlling the ash removal rod to rotate.

4. The automatic ash removal device for the heat exchange tube of the boiler as claimed in any one of claims 1 to 3, further comprising an ash removal rod positioner arranged on the ash removal rod, and a movable ash removal rod support frame movably connected with the ash removal rod through the ash removal rod positioner.

5. The automatic ash removal device for the heat exchange tubes of the boiler as claimed in any one of claims 1 to 3, wherein a hydraulic rod is fixedly arranged at the bottom of the hydraulic lifting platform.