CN110887400A - Descaling equipment and descaling method for inner side wall of port of boiler tube - Google Patents
Descaling equipment and descaling method for inner side wall of port of boiler tube Download PDFInfo
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- CN110887400A CN110887400A CN201911200355.4A CN201911200355A CN110887400A CN 110887400 A CN110887400 A CN 110887400A CN 201911200355 A CN201911200355 A CN 201911200355A CN 110887400 A CN110887400 A CN 110887400A
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- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 58
- 238000007789 sealing Methods 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 11
- 241001330002 Bambuseae Species 0.000 claims description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 239000011295 pitch Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005201 scrubbing Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000006049 ring expansion reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/04—Rotary appliances having brushes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Brushes (AREA)
Abstract
The invention relates to the technical field of boiler tube maintenance, and discloses descaling equipment and a descaling method for the inner side wall of a port of a boiler tube. This boiler pipe port inside wall scale removal equipment has changed the traditional mode that carries out the comprehensive scale removal of soaking to the boiler pipe, furthest's reduction descaling liquid is to the corrosive action of boiler pipe inside wall, reduces the use amount of descaling liquid to boiler pipe incrustation scale use simultaneously, furthest's improvement descaling liquid's utilization ratio.
Description
The invention relates to a divisional application of descaling equipment on the inner side wall of a boiler pipe port, which is invented on the application date of 2018, 10 and 27 and has the application number of CN 201811262584.4.
Technical Field
The invention relates to the technical field of boiler tube maintenance, in particular to descaling equipment and a descaling method for the inner side wall of a port of a boiler tube.
Background
Boiler pipe is after long-time the use, often can be stained with at its connection port department and attach and pile up more incrustation scale impurity, so need regular dismouting scale removal, soak in the dirt liquid that boiler pipe soaked completely and then scrub, detach the dirt of boiler pipe port inside wall, the maintenance mode of this kind of boiler pipe port is long time consuming, the efficiency reduces, boiler pipe soaks also easily produces certain destruction to its surface metal tissue in the dirt liquid, boiler pipe's life has been reduced, and the use and utilization ratio of a large amount of dirt liquids is lower, can not make effective use of, consequently, need one kind to carry out the equipment of clearance to the incrustation scale that boiler pipe port inside wall is stained with, improve efficiency and quality that boiler pipe port incrustation scale was got rid of, reduce the destruction of descaling agent to boiler pipe surface metal tissue simultaneously.
Disclosure of Invention
The problem of the difficult removal of the incrustation scale that attaches of boiler pipe port inside wall is solved.
A descaling device for the inner side wall of a boiler pipe port comprises a machine barrel, a driving motor, two handles, a positioning ring, a walking bearing, a rotating barrel, a radial adjusting mechanism, a sealing connecting mechanism, two arc-shaped sheet plates, two hard brushes, a water inlet connector, a switch valve, an outer bearing, a positioning pipe, a positioning mechanism and a control switch, wherein the driving motor is fixedly arranged in the inner side of the machine barrel through a fixing frame, the two handles are respectively arranged on the two sides of the machine barrel through bolts, the positioning ring is arranged at the top of the machine barrel, the walking bearing is arranged in the inner side of the positioning ring, the rotating barrel is inserted in the inner side of the walking bearing and is fixedly connected with the tail end of an output shaft of the driving motor, the radial adjusting mechanism and the sealing connecting mechanism are both arranged in the inner side of the rotating barrel, the sealing connecting mechanism is connected with the radial adjusting mechanism and is positioned right above, two stereoplasm brushes set up respectively at the lateral wall of two arc sheet boards, and the water inlet fixedly connected with water supply connector of water inlet on the rotatory section of thick bamboo installs the ooff valve on the water supply connector, and outer bearing installs at the outside top of rotatory section of thick bamboo, and the locating tube cup joints on outer bearing, and positioning mechanism installs on the locating tube, and control switch sets up the bottom intermediate position at the barrel.
Radial adjustment mechanism includes middle solid fixed ring, horizontal polished rod, two star handles, forward external screw thread, reverse external screw thread, two ball nut and two stoppers, middle solid fixed ring passes through the bolt and installs the inboard bottom intermediate position at rotatory section of thick bamboo, horizontal polished rod transversely alternates in middle solid fixed ring's inboard and extend to the outside of rotatory section of thick bamboo and be connected with two star handles respectively, forward external screw thread and reverse external screw thread have been seted up respectively to horizontal polished rod in the portion of being located rotatory section of thick bamboo inboard about middle solid fixed ring symmetry, two ball nut connect respectively at the forward external screw thread and the reverse external screw thread part of horizontal polished rod, two stoppers set up respectively and keep away from middle solid fixed ring's end at forward external screw thread and.
The sealing connection mechanism comprises a circular limiting plate, two radial movable clamping grooves, two radial movable clamping blocks and two telescopic sealing layers, the circular limiting plate is fixedly installed on the inner side of the rotary cylinder, the two radial movable clamping grooves are symmetrically arranged on the circular limiting plate relative to the center of the circular limiting plate, the two radial movable clamping blocks are movably clamped on the two radial movable clamping grooves respectively, the two telescopic sealing layers are connected with the radial movable clamping blocks on the inner sides of the corresponding radial movable clamping grooves respectively, and the bottoms of the two radial movable clamping blocks are connected with the two ball nuts respectively.
The positioning mechanism comprises a circular expansion air bag, an air guide joint and a switch air valve, the circular expansion air bag is adhered to the top of the inner side of the positioning tube, the air guide joint is connected to an air inlet of the circular expansion air bag, and the switch air valve is installed on the air guide joint.
Preferably, the thread pitch of the forward external thread and the thread pitch of the reverse external thread are equal, the two ball nuts on the forward external thread and the reverse external thread are symmetrically arranged relative to the middle fixing ring, and the two radial movable clamping blocks are respectively positioned right above the corresponding ball nuts.
Preferably, the two telescopic sealing layers are identical in structural size, the telescopic sealing layers can be rubber sheets with better telescopic toughness, the thickness of the telescopic sealing layers is 2-3 mm, and the telescopic sealing layers are bonded with the inner side walls of the corresponding radial movable clamping grooves and the radial movable clamping blocks to guarantee the sealing performance between the circular limiting plate and the rotary cylinder.
Preferably, the connection relationship between the control switch and the driving motor is electrical connection, the control switch can control the switch and the running state of the driving motor, and the driving motor can adopt a small torque motor with the power of 100W-150W.
Preferably, the outer side wall surface of the circular expansion air bag is completely bonded with the top surface of the inner side wall of the positioning tube, the diameter of the outer side wall of the circular expansion air bag is equal to the inner diameter of the positioning tube, the circular expansion air bag can be made of soft rubber materials, and the side thickness of the circular expansion air bag is 4-6 mm.
Preferably, the two arc-shaped sheet plates are symmetrically arranged relative to the center of the rotary cylinder, the cross section of each arc-shaped sheet plate is arc-shaped with a fifth of a circle, the arc-shaped sheet plates can be made of stainless steel metal materials, the thickness of each arc-shaped sheet plate is 3-4 mm, the hard brushes are connected with the arc-shaped sheet plates in an adhesion mode, the two hard brushes are symmetrically adhered to the arc-shaped outer side walls of the arc-shaped sheet plates relative to the center of the rotary cylinder, and bristles of the hard brushes can be made of hard nylon brush materials.
Compared with the prior art:
(1) the descaling device for the inner side wall of the port of the boiler pipe is characterized in that a radial adjusting mechanism, a rotary cylinder and a walking bearing are arranged to be matched with each other, when the device is used, the positioning mechanism positions a positioning pipe at the port of the boiler pipe to be cleaned, the positioning pipe sleeves the boiler pipe at the port, then a switch valve is opened to inject descaling liquid into the rotary cylinder through a water inlet connector, then the switch valve is closed, the distance between two arc-shaped sheet plates is adjusted according to the inner diameter of the boiler pipe, a star-shaped handle is rotated to drive a transverse polish rod to rotate, a forward external thread and a reverse external thread on the transverse polish rod respectively drive two ball nuts to move back to back, so that the two ball nuts respectively move in a radial movable clamping groove through a radial movable clamping block of a sealing connecting mechanism, and the sealing connecting mechanism respectively drives the two arc-shaped sheet plates to move back to back, therefore, the distance between the outer side wall of the arc-shaped sheet plate and the inner side wall of the boiler pipe is reduced, so that the hard brush is in contact with the inner side wall of the boiler pipe and applies pressure, and the device is suitable for applying pressure, scrubbing and descaling the inner side walls of the boiler pipes with different inner diameters.
(2) The descaling equipment for the inner side wall of the port of the boiler pipe drives the two arc-shaped sheet plates to move oppositely or back to back by arranging the sealing connection mechanism, when the equipment is used, descaling liquid is injected into the rotary cylinder, so that the output shaft of the driving motor drives the rotary cylinder to rotate, the descaling liquid injected into the rotary cylinder rotates and contacts with the hard brushes on the two arc-shaped sheet plates, the surface of the inner side wall of the boiler pipe is scrubbed under the action of the descaling liquid, the descaling liquid reacts with the scale on the inner side wall of the boiler pipe to soften the scale, and the scale is scrubbed by repeated rotary friction scrubbing of the hard brushes, so that the traditional mode of comprehensively soaking and descaling the boiler pipe is changed, the corrosion effect of the descaling liquid on the inner side wall of the boiler pipe is reduced to the maximum extent, the using amount of the descaling liquid on the scale of the boiler pipe is reduced at the same time, and the utilization rate of the, simultaneously flexible sealing layer and circular limiting plate prevent that descaling liquid from getting into the inboard bottom of rotatory section of thick bamboo, produce the corruption to radial adjustment mechanism, guarantee the stability of cooperation between the mechanism.
(3) The descaling equipment for the inner side wall of the port of the boiler pipe is characterized in that a positioning pipe and a positioning mechanism are arranged to be matched with each other, when the equipment is used, the port of the boiler pipe is sleeved by the positioning pipe, then a switch air valve is opened, a high-pressure air pump externally connected with an air guide joint inflates an annular expansion air bag, the annular expansion air bag is deformed by high-pressure gas, the port of the boiler pipe inserted into the inner side of the positioning pipe is wrapped and extruded, the inner side edge of the annular expansion air bag is completely attached to the inner side wall of the boiler pipe by leading-in of the high-pressure gas, so that the purpose of sealing the port of the boiler pipe is achieved, when the equipment is operated, the positioning pipe is sleeved at the port of the boiler pipe by the positioning mechanism, an output shaft of a driving motor drives a rotating cylinder to rotate, the port at the top of, thereby the sealed of guarantee boiler pipe port department need not dismantle boiler pipe and can reach the purpose of scrubbing its port inside wall, and the outflow of mode descaling liquid simultaneously, furthest's improvement descaling liquid's utilization ratio.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the radial adjusting mechanism and the sealing connection mechanism of the present invention;
FIG. 3 is a schematic structural diagram of a positioning mechanism according to the present invention.
In the figure: 1 machine barrel, 2 driving motors, 3 handles, 4 positioning rings, 5 walking bearings, 6 rotating barrels, 7 radial adjusting mechanisms, 71 middle fixing rings, 72 transverse polish rods, 73 star-shaped handles, 74 positive external threads, 75 reverse external threads, 76 ball nuts, 77 limiting blocks, 8 sealing connecting mechanisms, 81 circular limiting plates, 82 radial movable clamping grooves, 83 radial movable clamping blocks, 84 telescopic sealing layers, 9 arc-shaped sheet plates, 10 hard brushes, 11 water inlet connectors, 12 switching valves, 13 outer bearings, 14 positioning pipes, 15 positioning mechanisms, 151 ring expansion air bags, 152 air guide connectors, 153 air valve switches and 16 control switches.
Detailed Description
As shown in fig. 1-3, the present invention provides a technical solution: a descaling device for the inner side wall of a boiler pipe port comprises a machine barrel 1, a driving motor 2, two handles 3, a positioning ring 4, a walking bearing 5, a rotating barrel 6, a radial adjusting mechanism 7, a sealing connecting mechanism 8, two arc-shaped sheet plates 9, two hard brushes 10, a water inlet joint 11, a switch valve 12, an outer bearing 13, a positioning pipe 14, a positioning mechanism 15 and a control switch 16, wherein the driving motor 2 is fixedly arranged on the inner side of the machine barrel 1 through a fixing frame, the two handles 3 are respectively arranged on two sides of the machine barrel 1 through bolts, the positioning ring 4 is arranged on the top of the machine barrel 1, the walking bearing 5 is arranged on the inner side of the positioning ring 4, the rotating barrel 6 penetrates through the inner side of the walking bearing 5 and is fixedly connected with the tail end of an output shaft of the driving motor 2, the radial adjusting mechanism 7 and the sealing connecting mechanism 8 are both arranged on the inner side of the rotating barrel 6, the sealing connecting mechanism 8 is connected with the, the two arc-shaped sheets 9 are connected with a sealing connection mechanism 8, two hard brushes 10 are respectively arranged on the outer side walls of the two arc-shaped sheets 9, the two arc-shaped sheets 9 are symmetrically arranged about the center of the rotary cylinder 6, the cross section of each arc-shaped sheet 9 is arc-shaped with a fifth of a circle, the arc-shaped sheets 9 can be made of stainless steel metal materials, the thickness of each arc-shaped sheet 9 is 3-4 mm, the connection relation between the hard brushes 10 and the arc-shaped sheets 9 is bonding, the two hard brushes 10 are symmetrically bonded on the arc-shaped outer side walls of the arc-shaped sheets 9 about the center of the rotary cylinder 6, the bristles of the hard brushes 10 can be made of hard nylon brush materials, a water inlet joint 11 is fixedly connected to a water inlet on the rotary cylinder 8, a switch valve 12 is mounted on the water inlet joint 11, an outer bearing 13 is mounted on the top of the outer side of the rotary cylinder 6, the positioning mechanism 15 is arranged on the positioning tube 14, the control switch 16 is arranged at the middle position of the bottom of the machine barrel 1, the connection relationship between the control switch 16 and the driving motor 2 is electrical connection, the control switch 16 can control the on-off and the running state of the driving motor 2, and the driving motor 2 can adopt a small-sized torque motor with the power of 100W-150W.
The radial adjusting mechanism 7 comprises a middle fixing ring 71, a transverse polish rod 72, two star-shaped handles 73, a forward external thread 74, a reverse external thread 75, two ball nuts 76 and two limiting blocks 77, wherein the middle fixing ring 71 is installed at the middle position of the bottom of the inner side of the rotating cylinder 6 through bolts, the transverse polish rod 72 transversely penetrates through the inner side of the middle fixing ring 71 and extends to the outer side of the rotating cylinder 6 and is respectively connected with the two star-shaped handles 73, the transverse polish rod 72 is respectively and symmetrically provided with the forward external thread 74 and the reverse external thread 75 on the inner side portion of the rotating cylinder 6 relative to the middle fixing ring 71, the two ball nuts 76 are respectively connected with the forward external thread 74 and the reverse external thread 75 of the transverse polish rod 72, the two limiting blocks 77 are respectively arranged at the tail ends of the forward external thread 74 and the reverse external thread 75 far away from the middle fixing ring 71, the two ball nuts 76 on the positive external thread 74 and the reverse external thread 75 are symmetrically arranged about the middle fixing ring 71, and the two radially movable latch blocks 83 are respectively located right above the corresponding ball nuts 76.
The sealing connection mechanism 8 comprises a circular limiting plate 81, two radial movable clamping grooves 82, two radial movable clamping blocks 83 and two telescopic sealing layers 84, the circular limiting plate 81 is fixedly installed on the inner side of the rotary cylinder 6, the two radial movable clamping grooves 82 are symmetrically arranged on the circular limiting plate 81 about the center of the circular limiting plate 81, the two radial movable clamping blocks 83 are movably clamped on the two radial movable clamping grooves 82 respectively, the two telescopic sealing layers 84 are connected with the radial movable clamping blocks 83 on the inner sides of the corresponding radial movable clamping grooves 82 respectively, the bottoms of the two radial movable clamping blocks 83 are connected with the two ball nuts 76 respectively, the two telescopic sealing layers 84 are identical in structural size, the telescopic sealing layers 84 can be made of rubber sheets with good telescopic toughness, the thickness of the telescopic sealing layers 84 is 2-3 mm, and the telescopic sealing layers 84 are bonded with the inner side walls of the corresponding radial movable clamping grooves 82 and the radial movable clamping blocks 83 to ensure that the 6.
The positioning mechanism 15 comprises a circular expansion airbag 151, an air guide joint 152 and a switch air valve 153, the circular expansion airbag 151 is adhered to the top of the inner side of the positioning tube 14, the air guide joint 152 is connected to an air inlet of the circular expansion airbag 151, the switch air valve 153 is installed on the air guide joint 152, the surface of the outer side wall of the circular expansion airbag 151 is completely adhered to the surface of the top of the inner side wall of the positioning tube 14, the diameter of the outer side wall of the circular expansion airbag 151 is equal to the inner diameter of the positioning tube 14, the circular expansion airbag 151 can be made of soft rubber materials, and the thickness of the side edge of the circular expansion airbag 151 is 4-6 mm.
When the device is used, the handle 3 is held by two hands, the port of the boiler tube is sleeved by the positioning tube 14, the switch air valve 153 is opened, the high-pressure air pump externally connected with the air guide joint 152 inflates the annular expansion air bag 151, the annular expansion air bag 151 deforms by high-pressure air, the port of the boiler tube inserted in the positioning tube 14 is wrapped and extruded, the inner side of the annular expansion air bag 151 is completely attached to the inner side wall of the boiler tube by guiding the high-pressure air, the port of the boiler tube is sealed, then the switch valve 12 is opened, a small amount of descaling liquid is injected into the rotary cylinder 6 through the water inlet joint 11, the inner side of the rotary cylinder 6 is not required to be completely soaked, then the switch valve 12 is closed, the distance between the two arc-shaped sheet plates 9 is adjusted according to the inner diameter of the boiler tube, the star-shaped handle 73 is rotated, and the star-shaped handle 73 drives the transverse polish rod 72 to rotate, the positive external thread 74 and the reverse external thread 75 on the transverse polish rod 72 respectively drive the two ball nuts 76 to move back and forth, so that the two ball nuts 76 respectively move in the radial movable clamping groove 82 through the radial movable clamping block 83 of the sealing connection mechanism 8, so that the sealing connection mechanism 8 respectively drives the two arc-shaped sheets 9 to move back and forth, so that the distance between the outer side wall of the arc-shaped sheet 9 and the inner side wall of the boiler tube is reduced, the hard brushes 10 are in contact with the inner side wall of the boiler tube and apply pressure, the driving motor 2 is started through the control switch 16, the output shaft of the driving motor 2 drives the rotary cylinder 6 to rotate, so that the descaling liquid injected into the rotary cylinder 6 rotates and is in contact with the hard brushes 10 on the two arc-shaped sheets 9, thereby the surface of the inner side wall of the boiler tube is cleaned, and the descaling liquid reacts with scale on the inner side wall of the, and then is scrubbed by the friction scrubbing of relapse rotation of stereoplasm brush 10, the traditional mode of carrying out comprehensive soaking scale removal to the boiler pipe has been changed, furthest's reduction descaling liquid is to the corrosive action of boiler pipe inside wall, reduce the use amount of descaling liquid to boiler pipe incrustation scale simultaneously, furthest's improvement descaling liquid's utilization ratio, flexible sealing layer 84 and circular limiting plate 81 prevent that descaling liquid from getting into the inboard bottom of rotary drum 6 simultaneously, produce the corruption to radial adjustment mechanism 7, guarantee the stability of complex between the mechanism, after boiler pipe inside wall incrustation scale is detached, open through switch pneumatic valve 153 and release the high-pressure gas in the ring expansion gasbag 151, it can to break away from the port of boiler pipe with equipment.
Claims (6)
1. The utility model provides a boiler pipe port inside wall scale removal equipment, includes barrel (1), driving motor (2), two handle (3), location ring (4), walking bearing (5), rotatory section of thick bamboo (6), radial adjustment mechanism (7), sealing connection mechanism (8), two arc sheet boards (9), two stereoplasm brush (10), water supply connector (11), ooff valve (12), outer bearing (13), registration arm (14), positioning mechanism (15) and control switch (16), its characterized in that: the driving motor (2) is fixedly arranged on the inner side of the machine barrel (1) through a fixing frame, the two handles (3) are respectively arranged on two sides of the machine barrel (1) through bolts, the positioning ring (4) is arranged at the top of the machine barrel (1), the walking bearing (5) is arranged on the inner side of the positioning ring (4), the rotating barrel (6) is inserted into the inner side of the walking bearing (5) and fixedly connected with the tail end of an output shaft of the driving motor (2), the radial adjusting mechanism (7) and the sealing connecting mechanism (8) are both arranged on the inner side of the rotating barrel (6), the sealing connecting mechanism (8) is connected with the radial adjusting mechanism (7) and is positioned right above the radial adjusting mechanism (7), the two arc-shaped sheet plates (9) are both connected with the sealing connecting mechanism (8), the two hard hairbrushes (10) are respectively arranged on the outer side walls of the two arc-shaped sheet plates (9), a water inlet on the rotating barrel (8) is fixedly connected with a water inlet, a switching valve (12) is installed on the water inlet joint (11), an outer bearing (13) is installed at the top of the outer side of the rotary cylinder (6), a positioning pipe (14) is sleeved on the outer bearing (13), a positioning mechanism (15) is installed on the positioning pipe (14), and a control switch (16) is arranged in the middle of the bottom of the machine barrel (1); radial adjustment mechanism (7) is including middle solid fixed ring (71), horizontal polished rod (72), two star handle (73), forward external screw thread (74), reverse external screw thread (75), two ball nut (76) and two stopper (77), middle solid fixed ring (71) is installed at the inboard bottom intermediate position of rotatory section of thick bamboo (6) through the bolt, horizontal polished rod (72) transversely alternates in the inboard of middle solid fixed ring (71) and extend to the outside of rotatory section of thick bamboo (6) and be connected with two star handle (73) respectively, horizontal polished rod (72) are lieing in rotatory section of thick bamboo (6) inside portion and are seted up forward external screw thread (74) and reverse external screw thread (75) respectively about middle solid fixed ring (71) symmetry, two ball nut (76) are connected respectively at the forward external screw thread (74) and reverse external screw thread (75) part of horizontal polished rod (72), two stopper (77) set up respectively in forward external screw thread (74) and reverse external screw thread (75) keep away from well The end of the middle fixing ring (71); the sealing connection mechanism (8) comprises a circular limiting plate (81), two radial movable clamping grooves (82), two radial movable clamping blocks (83) and two telescopic sealing layers (84), the circular limiting plate (81) is fixedly installed on the inner side of the rotary cylinder (6), the two radial movable clamping grooves (82) are symmetrically arranged on the circular limiting plate (81) relative to the center of the circular limiting plate (81), the two radial movable clamping blocks (83) are movably clamped on the two radial movable clamping grooves (82) respectively, the two telescopic sealing layers (84) are connected with the radial movable clamping blocks (83) on the inner sides of the corresponding radial movable clamping grooves (82) respectively, and the bottoms of the two radial movable clamping blocks (83) are connected with the two ball nuts (76) respectively; the positioning mechanism (15) comprises a circular expansion air bag (151), an air guide joint (152) and a switch air valve (153), the circular expansion air bag (151) is adhered to the top of the inner side of the positioning pipe (14), the air guide joint (152) is connected to an air inlet of the circular expansion air bag (151), and the switch air valve (153) is installed on the air guide joint (152);
the thread pitches of the forward external thread (74) and the reverse external thread (75) in opposite thread directions are equal, the two ball nuts (76) on the forward external thread (74) and the reverse external thread (75) are symmetrically arranged relative to the middle fixing ring (71), and the two radial movable clamping blocks (83) are respectively positioned right above the corresponding ball nuts (76); the two arc-shaped sheet plates (9) are symmetrically arranged around the center of the rotary cylinder (6).
2. The descaling device for the inner side wall of the boiler tube port according to claim 1, wherein: the structure size of two flexible sealing layers (84) is all the same, and flexible sealing layer (84) adopt the better sheet rubber of flexible toughness, and the thickness of flexible sealing layer (84) is 2-3 millimeters, flexible sealing layer (84) through with the inside wall and the radial activity fixture block (83) of corresponding radial activity draw-in groove (82) bond each other and ensure the leakproofness between circular limiting plate (81) and rotatory section of thick bamboo (6).
3. The descaling device for the inner side wall of the boiler tube port according to claim 1, wherein: the connection relation between the control switch (16) and the driving motor (2) is electric connection, the control switch (16) can control the on-off and running state of the driving motor (2), and the driving motor (2) adopts a small torque motor with the power of 100W-150W.
4. The descaling device for the inner side wall of the boiler tube port according to claim 1, wherein: the outer side wall surface of the circular expansion air bag (151) is completely bonded with the top surface of the inner side wall of the positioning pipe (14), the diameter of the outer side wall of the circular expansion air bag (151) is equal to the inner diameter of the positioning pipe (14), the circular expansion air bag (151) is made of soft rubber materials, and the side thickness of the circular expansion air bag (151) is 4-6 mm.
5. The descaling device for the inner side wall of the boiler tube port according to claim 1, wherein: the cross section of the arc-shaped sheet plate (9) is arc-shaped, the cross section of the arc-shaped sheet plate is a fifth of a circle, the arc-shaped sheet plate (9) is made of stainless steel metal materials, the thickness of the arc-shaped sheet plate (9) is 3-4 mm, the hard brushes (10) are connected with the arc-shaped sheet plate (9) in an adhering mode, the two hard brushes (10) are symmetrically adhered to the arc-shaped outer side wall of the arc-shaped sheet plate (9) relative to the center of the rotating cylinder (6), and bristles of the hard brushes (10) are made of hard nylon brush materials.
6. A descaling method using the descaling apparatus according to any one of claims 1, characterized in that: when the boiler tube sealing device is used, the handle (3) is held by hands, the port of the boiler tube is sleeved by the positioning tube (14), then the switch air valve (153) is opened, the air guide joint (152) is externally connected with the high-pressure air pump to inflate the annular expansion air bag (151), the annular expansion air bag (151) is deformed by high-pressure air, the port of the boiler tube inserted in the positioning tube (14) is wrapped and extruded, the inner side of the annular expansion air bag (151) is completely attached to the inner side wall of the boiler tube by leading in of the high-pressure air, so that the purpose of sealing the port of the boiler tube is achieved, then the switch valve (12) is opened to inject a small amount of descaling liquid into the rotary tube (6) through the water inlet joint (11), the inner side of the rotary tube (6) is not required to be completely soaked, then the switch valve (12) is closed, the distance between the two arc-shaped plates (9) is adjusted according to the, the star-shaped handle (73) is rotated, so that the star-shaped handle (73) drives the transverse polish rod (72) to rotate, the forward external thread (74) and the reverse external thread (75) on the transverse polish rod (72) respectively drive the two ball nuts (76) to move back to back, so that the two ball nuts (76) respectively move in the radial movable clamping groove (82) through the radial movable clamping block (83) of the sealing connecting mechanism (8), so that the sealing connecting mechanism (8) respectively drives the two arc-shaped sheet plates (9) to move back to back, the distance between the outer side wall of the arc-shaped sheet plate (9) and the inner side wall of the boiler tube is reduced, the hard brush (10) is in contact with and presses the inner side wall of the boiler tube, the driving motor (2) is started through the control switch (16), so that the output shaft of the driving motor (2) drives the rotary cylinder (6) to rotate, the descaling liquid injected into the rotary cylinder (6) rotates and contacts with the hard brushes (10) on the two arc-shaped sheet plates (9), so that the effect of the surface of the inner side wall of the boiler tube is scrubbed, the descaling liquid reacts with the scale on the inner side wall of the boiler tube to soften the scale, and the scale is scrubbed by repeated rotary friction of the hard brushes (10), thereby changing the traditional mode of comprehensively soaking and descaling the boiler tube, furthest reducing the corrosion effect of the descaling liquid on the inner side wall of the boiler tube, simultaneously reducing the using amount of the descaling liquid on the scale of the boiler tube, furthest improving the utilization rate of the descaling liquid, simultaneously preventing the descaling liquid from entering the bottom of the inner side of the rotary cylinder (6) by the telescopic sealing layer (84) and the circular limiting plate (81), corroding the radial adjusting mechanism (7), and ensuring the matching stability between mechanisms, after scale on the inner side wall of the boiler pipe is removed, the high-pressure gas in the annular expansion air bag (151) is released by opening the switch air valve (153), and the equipment is separated from the port of the boiler pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200355.4A CN110887400B (en) | 2018-10-27 | 2018-10-27 | Descaling equipment and descaling method for inner side wall of port of boiler tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200355.4A CN110887400B (en) | 2018-10-27 | 2018-10-27 | Descaling equipment and descaling method for inner side wall of port of boiler tube |
| CN201811262584.4A CN109297349B (en) | 2018-10-27 | 2018-10-27 | Descaling equipment for inner side wall of port of boiler pipe |
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| CN201811262584.4A Division CN109297349B (en) | 2018-10-27 | 2018-10-27 | Descaling equipment for inner side wall of port of boiler pipe |
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| CN110887400A true CN110887400A (en) | 2020-03-17 |
| CN110887400B CN110887400B (en) | 2020-11-10 |
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| CN201811262584.4A Active CN109297349B (en) | 2018-10-27 | 2018-10-27 | Descaling equipment for inner side wall of port of boiler pipe |
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| CN110080141A (en) * | 2019-05-21 | 2019-08-02 | 许毛引 | A kind of cleaning equipment for road stake |
| CN110454767B (en) * | 2019-08-16 | 2021-04-09 | 黄林 | Boiler cleaning equipment |
| CN112923424B (en) * | 2021-03-11 | 2022-09-06 | 贵州中能投科技有限公司 | Energy-saving comprehensive heat supply system |
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| CN110887400B (en) | 2020-11-10 |
| CN109297349A (en) | 2019-02-01 |
| CN109297349B (en) | 2020-04-17 |
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