CN111307088A - Water-cooled wall pneumatic ball passing positioning device and ball passing test method - Google Patents
Water-cooled wall pneumatic ball passing positioning device and ball passing test method Download PDFInfo
- Publication number
- CN111307088A CN111307088A CN202010234522.3A CN202010234522A CN111307088A CN 111307088 A CN111307088 A CN 111307088A CN 202010234522 A CN202010234522 A CN 202010234522A CN 111307088 A CN111307088 A CN 111307088A
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- Prior art keywords
- water
- metal ball
- ball
- wall pipe
- pipe
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/38—Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
Abstract
The invention provides a water-cooled wall pneumatic ball-passing positioning device which comprises an outlet length metering mechanism, wherein the outlet length metering mechanism comprises a rotatable code disc, the left side of the code disc is provided with a winding machine, the right side of the code disc is provided with a tension sensor, the winding machine is provided with a fine wire which bypasses the code disc and the tension sensor and is connected with a metal ball, the input end of the water-cooled wall tube is provided with a high-pressure air gun for assisting the metal ball to move in the water-cooled wall tube, the tension sensor alarms when the metal ball meets a blocking position, and a ball-passing test is finished. The invention has simple structure and reasonable design, can accurately position the blocking position in the water wall pipe by utilizing the through ball test method, greatly reduces the detection workload, improves the detection precision and the working efficiency simultaneously, has obvious economic benefit and has practicability compared with the traditional method of gradually searching the blocking position by cutting the pipe for many times.
Description
Technical Field
The invention relates to a water-cooled wall pneumatic ball passing positioning device and a ball passing test method.
Background
Foreign matter blockage on the heating surface of a boiler of a thermal power plant causes pipe explosion, is a main reason for unplanned shutdown of the power plant, and poses serious threats to the safety and the economical efficiency of the operation of the thermal power plant. At present, the blockage position of a pipe explosion is detected by shutting down a furnace in a thermal power plant, a large number of tentative pipe cutting checks are mainly used, and the method is old, large in workload, large in destructiveness and low in working efficiency. The signals in the pipe are shielded, the detection technologies such as ultrasonic and the like are limited, and the accurate pipe blockage position is difficult to judge. The pipeline is spirally distributed along the heating surface, the diameter of the pipeline is small, the shape is complex, the pipeline is bent more, great difficulty is brought to detection, and the problem of detecting the position of the pipeline blockage on the heating surface troubles the maintainers of the thermal power plant for a long time.
Disclosure of Invention
The invention improves the problems, namely the technical problems to be solved by the invention are that if the interior of the existing water wall pipe is blocked, a large number of tentative pipe cutting is needed to find out the specific blocking position, the operation is troublesome and the working efficiency is low.
The specific embodiment of the invention is as follows: the utility model provides a pneumatic logical ball positioner of water-cooling wall, includes the length metering mechanism of being qualified for the next round of competitions, the length metering mechanism of being qualified for the next round of competitions includes rotatable code wheel, the code wheel left side is provided with the coiling machine, and the water-cooling wall pipe sets up the right side at the code wheel, the inside metal ball that is used for at the inside removal of water-cooling wall pipe of placing of water-cooling wall pipe, be equipped with the fine rule of being connected with the metal ball after walking around the code wheel on the coiling machine, water-cooling wall pipe input is provided with and is used for assisting the high.
Furthermore, a length measuring sensor is arranged above the coded disc, the diameter of the coded disc is a fixed value, the coded disc is evenly and equally divided along the circumferential direction of the coded disc, and the length measuring sensor accurately monitors the number of forward and reverse rotation turns of the coded disc.
Furthermore, a tension sensor is arranged on the right side of the coded disc and located between the coded disc and the water wall tube, and the fine wire extends outwards from the winding machine and is connected with the metal ball after sequentially passing through the coded disc and the tension sensor.
Furthermore, a groove is formed in one end of the metal ball, a threaded hole is formed in the groove, and a lifting bolt used for connecting a fine wire is arranged in the threaded hole.
Further, the diameter of the metal ball is smaller than that of the water wall tube.
Furthermore, a fixed support shaft in running fit with the coded disc is arranged in the middle of the coded disc, an electronic display screen is arranged at the front end of the fixed support shaft, a chip is arranged inside the electronic display screen and electrically connected with the length measuring sensor, the chip can convert the outgoing line length of the thin line, and the electronic display screen can display the calculation result of the chip in real time.
Further, a ball passing test method of the water-cooled wall pneumatic ball passing positioning device comprises the following steps: (1) firstly, a high-pressure air gun carries out cleaning on a water wall pipe needing a ball passing test; (2) binding the thin wire on a lifting ring screw, and then fixing the lifting ring screw on the metal ball in a threaded manner; (3) placing the metal ball at the position of the input pipe orifice of the water wall pipe, opening the high-pressure air gun, blowing the metal ball to the water wall pipe, and allowing the metal ball to enter the water wall pipe and advance along the inside of the water wall pipe under the self weight of the metal ball and the auxiliary action of the high-pressure air gun; (4) if the metal ball is blocked in the water wall tube, the tension of the tension sensor is reduced, and the tension sensor gives an alarm; (5) adjusting the revolution direction and revolution speed of the winding machine, firstly enabling the winding machine to reversely rotate, pulling back the metal ball to a distance away from the blocked position in the water-cooling arm pipe, enabling the winding machine to rotate forwards again, enabling the metal ball to continue to move forwards, enabling the metal ball to contact the blocked position in the water-cooling wall pipe again, and if repeated confirmation is carried out for multiple times, confirming that the position of the section in the water-cooling wall pipe is the blocked position; (6) recording the outgoing line length displayed on the electronic display screen, and determining the position of the metal ball, namely the position for blocking the water-cooled wall pipe section according to the outgoing line length value; (7) the metal ball is pulled back through the winding machine, the fine wire is released, the ball passing test is finished, and the position of the blockage inside the water wall pipe can be cut off subsequently to be repaired, so that the work is completed.
Compared with the prior art, the invention has the following beneficial effects: the device has the advantages of reasonable design, simple structure and convenient operation, can accurately position the blocking position in the water wall pipe by using the through ball test method, greatly reduces the detection workload, improves the detection precision and the working efficiency simultaneously, has obvious economic benefit and has practicability compared with the traditional method of gradually searching the blocking position by cutting the pipe for many times.
Drawings
FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a top view of a wire length measuring mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a tension sensor according to an embodiment of the present invention;
FIG. 4 is a top view of a metal ball according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the interior of a metal ball according to an embodiment of the present invention.
In the figure: 1-wire outlet length measuring mechanism, 11-code disc, 12-length measuring sensor, 13-fixed fulcrum, 14-electronic display screen, 15-chip, 2-winding machine, 3-water wall tube, 4-metal ball, 41-slot, 42-threaded hole, 43-lifting screw, 5-thin wire, 6-high pressure air gun and 7-tension sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example (b): as shown in fig. 1 to 5, in the present embodiment, a water wall pneumatic ball positioning device includes an outgoing line length metering mechanism 1, the outgoing line length metering mechanism includes a rotatable code wheel 11, a winding machine 2 is disposed on the left side of the code wheel 11, a water wall tube 3 is disposed on the right side of the code wheel 11, a metal ball 4 for moving inside the water wall tube is disposed inside the water wall tube, a fine wire 5 connected with the metal ball 4 after bypassing the code wheel 11 is disposed on the winding machine 2, and a high-pressure air gun 6 for assisting the metal ball to move is disposed at an input end of the water wall tube 3.
In the embodiment, a length measuring sensor 12 is arranged above the coded disc 11, the diameter of the coded disc 11 is a fixed value, the coded disc is divided by 1000 parts along the circumferential direction of the coded disc, and the length measuring sensor accurately monitors the forward rotation number and the reverse rotation number of turns of the coded disc.
In the embodiment, a tension sensor 7 is arranged on the right side of the coded disc, the tension sensor 7 is located between the coded disc and the water wall tube, and the thin wire 5 extends outwards from the winding machine 2 and sequentially passes through the coded disc 11 and the tension sensor 7 and then is connected with the metal ball 4.
In this embodiment, the tension sensor 7 is a tension sensor manufactured by eiseko technologies ltd, usa, having a model number of R253 (rated capacity of 2kg), and a thin wire is wound around the tension sensor in an S-shape according to a conventional winding method; when the metal ball runs into the jam position in the water wall pipe is inside, fine rule tension diminishes, and tension sensor can send out the police dispatch newspaper, the pipeline section position that takes place to block up in the suggestion user water wall pipe.
In this embodiment, be equipped with rings on the eyebolt, conveniently tie up the fine rule on rings.
In this embodiment, the metal ball may be a solid ball with a smooth surface, and preferably, the diameter of the metal ball may be 20 mm; the diameter of the metal ball is smaller than that of the water wall tube, so that the metal ball can freely move in the water wall tube.
In this embodiment, the thin line may be a tough and flexible fish line, the diameter of the thin line is less than 1mm, preferably, the diameter of the fish line may be 0.5mm, the length of the fish line is 300m, and the length of the thin line is greater than the total length of the water wall tube, so that the detection is convenient.
In this embodiment, one end of the metal ball 4 is provided with a slot 41, a threaded hole 42 is formed in the slot 41, a lifting bolt 43 for connecting a thin wire is arranged in the threaded hole 42, the thin wire 5 is tied up on the lifting bolt 43, and the lifting bolt is in threaded connection with the threaded hole and is tightly connected with the threaded hole.
In the embodiment, when the device is used, the water wall tube 3 to be subjected to the ball passing test is firstly swept by the high-pressure air gun 6, then the thin wire is bound with the lifting bolt 43 on the metal ball 4, the lifting bolt is fixed on the metal ball, the metal ball is placed at the water wall tube opening to be subjected to the ball passing test, the high-pressure air gun 6 is started, and the metal ball enters the water wall tube 3 under the self weight of the metal ball 4 and the auxiliary action of the high-pressure air gun; at the moment, the paying-off speed of the winding machine 2 can be properly adjusted, and the water-cooled wall pipe section through which the metal balls can pass is a normal pipe section and is not blocked; if the metal is blocked, the tension of the thin wire is reduced, the tension sensor gives an alarm, the winding direction and the winding speed of the winding machine are adjusted, the winding machine is made to rotate in the forward direction, the metal ball is made to move back to a distance away from the blocking position, then the winding machine is made to rotate in the reverse direction, the metal ball is made to touch the blocking position again, the position of the water wall tube is repeatedly determined, the position of the water wall tube is determined to be the blocking tube section, the outgoing length on the electronic display screen can be recorded, the outgoing length is the recorded distance of the metal ball in the water wall tube, the position of the metal ball is determined to be the blocking position of the water wall tube according to the outgoing length, and finally the metal ball is pulled back through the winding machine, the blocking tube. This device simple structure, reasonable in design has significantly reduced detection achievement volume, improves and detects precision and work efficiency, and economic benefits is showing and is promoting, has the practicality.
Example 2: on embodiment 1's basis, in this embodiment, code wheel 11 middle part is provided with code wheel normal running fit's fixed fulcrum 13, and the code wheel rotates around fixed fulcrum, fixed fulcrum front end is equipped with electronic display 14, the inside chip 15 that is equipped with of electronic display, the chip still is connected with the meter length sensor electricity, and the during operation, the fine rule drive the code wheel and rotate, and the number of turns of rotation of code wheel is counted long sensor record and is transmitted to the chip, and the chip is according to the number of turns of rotation and the girth of code wheel, converts into the length of being qualified for next round of competitions of fine rule to show on electronic display in real time, can confirm the inside jam position of water-cooling wall pipe accurately, convenient.
In this embodiment, each length measuring sensor may be electrically connected to a photoelectric bidirectional sensor by a counter, which may be a JDM11-6S type intelligent counter manufactured by tenglon electronic instruments ltd, wenzhou, and may convert the number of turns of the code wheel into a perimeter output; the photoelectric bidirectional sensor can adopt a BWF-12A photoelectric bidirectional sensor sold by the sales department of Jinan Muscomb commercial and trade company, can bidirectionally sense the rotation number of the coded disc, and then converts the rotation number of the coded disc into the perimeter for output by a calculator.
In the embodiment, 10 small holes can be uniformly formed in the peripheral side surface of the code disc, the positions of the bidirectional photoelectric sensors close to the small holes are fixed, the bidirectional photoelectric sensors are connected with a counter, the perimeter of the code disc is calculated, the perimeter of the code disc is divided into 10 equal parts, and the obtained value is set on the counter; when the coded disc rotates, the photoelectric sensor can sense the position of the small hole, and the length of the line is displayed in real time when the photoelectric sensor senses 1/10 circles of the coded disc of the small hole meter; if the small ball meets the blocking position and the tension becomes small, the winding machine is pulled reversely, and the bidirectional photoelectric sensor can count reversely and subtract the corresponding length.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a water-cooling wall pneumatic tube ball positioner, its characterized in that, includes play line length metering mechanism, play line length metering mechanism includes rotatable code wheel, the code wheel left side is provided with the coiling machine, and the water-cooling wall pipe sets up the right side at the code wheel, the inside metal ball that is used for moving in the water-cooling wall pipe of placing of water-cooling wall pipe, be equipped with the fine rule of being connected with the metal ball after walking around the code wheel on the coiling machine, water-cooling wall pipe input is provided with the high-pressure air gun that is used for assisting the metal ball to remove in the water-cooling wall pipe.
2. The pneumatic ball-through positioning device for the water-cooled wall according to claim 1, wherein a length-measuring sensor is arranged above the coded disc, the diameter of the coded disc is a fixed value, the coded disc is evenly divided along the circumferential direction of the coded disc, and the length-measuring sensor accurately monitors the forward rotation number and the reverse rotation number of the coded disc.
3. The water-cooled wall pneumatic ball-passing positioning device of claim 2, wherein a tension sensor is arranged on the right side of the code disc, the tension sensor is positioned between the code disc and the water-cooled wall tube, and the thin wire extends outwards from the winding machine and is connected with the metal ball after sequentially passing through the code disc and the tension sensor.
4. The water-cooled wall pneumatic ball positioning device as claimed in claim 1, wherein a slot is formed in one end of the metal ball, a threaded hole is formed in the slot, and an eye screw for connecting a thin wire is arranged in the threaded hole.
5. A waterwall pneumatic drift tube locating device as claimed in claim 1, wherein said metal balls are smaller in diameter than the waterwall tubes.
6. The water-cooled wall pneumatic ball passing positioning device is characterized in that a fixing support shaft which is matched with the coded disc in a rotating mode is arranged in the middle of the coded disc, an electronic display screen is arranged at the front end of the fixing support shaft, a chip is arranged inside the electronic display screen and electrically connected with a length measuring sensor, the chip can convert the length of a fine wire outlet, and the electronic display screen can display the calculation result of the chip in real time.
7. A ball passing test method using the water wall pneumatic ball passing positioning device of claim 6, characterized by comprising the steps of: (1) firstly, a high-pressure air gun carries out cleaning on a water wall pipe needing a ball passing test; (2) binding the thin wire on a lifting ring screw, and then fixing the lifting ring screw on the metal ball in a threaded manner; (3) placing the metal ball at the position of the input pipe orifice of the water wall pipe, opening the high-pressure air gun, blowing the metal ball to the water wall pipe, and allowing the metal ball to enter the water wall pipe and advance along the inside of the water wall pipe under the self weight of the metal ball and the auxiliary action of the high-pressure air gun; (4) if the metal ball is blocked in the water wall tube, the tension of the tension sensor is reduced, and the tension sensor gives an alarm; (5) adjusting the revolution direction and revolution speed of the winding machine, firstly enabling the winding machine to reversely rotate, pulling back the metal ball to a distance away from the blocked position in the water-cooling arm pipe, enabling the winding machine to rotate forwards again, enabling the metal ball to continue to move forwards, enabling the metal ball to contact the blocked position in the water-cooling wall pipe again, and if repeated confirmation is carried out for multiple times, confirming that the position of the section in the water-cooling wall pipe is the blocked position; (6) recording the outgoing line length displayed on the electronic display screen, and determining the position of the metal ball, namely the position for blocking the water-cooled wall pipe section according to the outgoing line length value; (7) the metal ball is pulled back through the winding machine, the fine wire is released, the ball passing test is finished, and the position of the blockage inside the water wall pipe can be cut off subsequently to be repaired, so that the work is completed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010075095 | 2020-01-22 | ||
| CN2020100750959 | 2020-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307088A true CN111307088A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010234522.3A Pending CN111307088A (en) | 2020-01-22 | 2020-03-30 | Water-cooled wall pneumatic ball passing positioning device and ball passing test method |
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| CN (1) | CN111307088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721302A (en) * | 2021-08-12 | 2021-11-30 | 芜湖福记恒机械有限公司 | Steel ball detection device is led to copper water jacket |
-
2020
- 2020-03-30 CN CN202010234522.3A patent/CN111307088A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721302A (en) * | 2021-08-12 | 2021-11-30 | 芜湖福记恒机械有限公司 | Steel ball detection device is led to copper water jacket |
| CN113721302B (en) * | 2021-08-12 | 2024-02-23 | 芜湖福记恒机械有限公司 | Copper water jacket leads to steel ball detection device |
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