CN107442534B - Water jet-based scale removal method and device - Google Patents
Water jet-based scale removal method and device Download PDFInfo
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- CN107442534B CN107442534B CN201610368074.XA CN201610368074A CN107442534B CN 107442534 B CN107442534 B CN 107442534B CN 201610368074 A CN201610368074 A CN 201610368074A CN 107442534 B CN107442534 B CN 107442534B
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- guide rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
- B08B9/0936—Cleaning containers, e.g. tanks by the force of jets or sprays using rotating jets
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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
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a water jet-based scale removing method and a device, comprising an umbrella-shaped rotary spraying device, an electric filing box, a motor, a rotator, a water jet interface, a guide rod expansion device, a water pump, a water storage tank, a guide rod and the like; the umbrella-shaped rotary spraying device consists of a stretcher, a hinged ring, a flow divider, a guide pipe flow, a pull rod, an annular telescopic pipe, a cavitation nozzle, a guide cavity, an annular nozzle device and the like. The electric control box control stretcher adjusts the opening degree of the umbrella-shaped rotary spraying device so that the electric control box control stretcher enters the cleaning object in a small gesture, and the umbrella-shaped rotary spraying device is opened to perform cleaning preparation. The umbrella-shaped rotary spraying device can realize omnibearing scale removal operation without dead angles on a cleaning object by means of rotation of the rotator and extension and contraction of the guide rod. The invention has the advantages of high scale removal efficiency, no pollution, strong adaptability and the like.
Description
Technical Field
The invention relates to the technical field of scale removal, in particular to a scale removal method and device based on water jet flow.
Background
The scale is originally a precipitated product of heavy metals, calcium salts, dust, germs, ova and carcasses mixed in water, and the main components of the scale are calcium carbonate and magnesium hydroxide. The generation of scale can cause serious adverse effects on the production and life of people, especially in boilers, the generation of the scale often affects the safe operation of the boiler, and even more, the scale can cause irrecoverable loss for the life and property safety of people. The boiler is a special device widely used in industrial and agricultural production and people life, is one of important devices for producing steam or hot water, and the energy transfer medium is water. The quality of the water quality of the boiler water has great influence on the safe operation and the energy consumption of the boiler water. When the water quality of the boiler water is not satisfactory, the heating surface of the boiler can generate scale, so that the fuel consumption can be increased, and the safe operation of the boiler can be endangered. According to the related data, at present, more than 40 tens of thousands of boilers exist in the whole country, and in the annual accident statistics, the accidents caused by poor water quality and serious scale exceed 20% of the total number of accidents. In addition, the amount of fuel wasted per year due to the effect of scale reaches tens of millions of tons, resulting in economic losses of several hundred million yuan.
At present, the main method for removing scale of a boiler is to adopt chemical cleaning agents for removing scale, and different chemical cleaning agents are mainly selected for removing scale according to different materials of boiler equipment. However, chemical cleaning is often not ideal, the descaling rate is less than 50%, and the boiler may be corroded, accelerating the destruction of the boiler. Meanwhile, a large amount of water is required for descaling the chemical cleaning agent, and the use of the chemical cleaning agent causes serious environmental pollution.
Therefore, the prior cleaning technology must be innovated from the multi-angle consideration for the rapid, clean and environment-friendly descaling and cleaning of the boiler.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a water jet-based scale removal method and a water jet-based scale removal device.
The technical scheme adopted by the invention is as follows: the scale eliminating method and device based on water jet includes umbrella-shaped rotary spraying device, electric cabinet, motor, rotator, water jet interface, guide rod telescopic device, water pump, water tank and guide rod. The umbrella-shaped rotary spraying device consists of a stretcher, a hinged ring, a diverter, a flow guide pipe, a pull rod, an annular telescopic pipe, a cavitation nozzle, a flow guide cavity and an annular nozzle.
Preferably, the number of the annular nozzle devices is between 8 and 20, the number of the flow guide cavities is between 4 and 6, the number of the annular telescopic tubes is between 12 and 26, and the specific number is mainly determined by the inner diameter size of the object to which the number is applied. The annular nozzle device, the flow guide cavity and the annular telescopic pipe are alternately connected with each other to form a closed annular ring, and the annular nozzle device, the flow guide cavity and the annular telescopic pipe are uniformly arranged on the annular ring; the annular telescopic pipe is telescopic, and 20-50 cavitation nozzles are arranged on the annular nozzle device.
Preferably, one end of the flow guide pipe is connected with the flow guide cavity, and the other end of the flow guide pipe is connected with the flow divider; the diverter is fixedly arranged at the tail end of the guide rod, and the guide pipe is retractable.
Preferably, the pull rod is divided into two types: one end of the device is hinged with the diversion cavity or the annular nozzle device, and the other end of the device is hinged with the stretcher; one end of the other end is hinged with the flow guiding cavity or the annular nozzle device, and the other end is hinged with the hinge ring. The hinge ring is fixedly arranged at the tail end of the guide rod. The stretcher can be controlled by an electric cabinet and then moves along the guide rod. When the stretcher moves along the guide rod, the umbrella-shaped rotary spraying device can be unfolded or contracted, so that the stretcher is suitable for different working objects.
Preferably, the rotator is controlled by an electric cabinet, and can drive the umbrella-shaped rotary spraying device to rotate; the guide rod telescopic device is also controlled by the electric cabinet, and can extend or retract the guide rod, so that the length of the guide rod is regulated and controlled.
Preferably, the water pressure of the high-pressure water jet output by the water pump is between 20 and 30 MPa. The water jet is led into the guide rod through the water jet interface device, is led to the diverter through the guide rod, reaches the annular nozzle device through the guide pipe, the guide cavity, the annular telescopic pipe and the like, and is sprayed out through the cavitation nozzle to perform descaling and cleaning operations.
The invention has the beneficial effects that:
1) The method for removing the scale has high scale removing efficiency and no pollution. The invention adopts the high-pressure compressed water jet to remove the scale, can greatly improve the removal efficiency and the removal quality, has small water consumption, reduces or avoids the use of cleaning agents, and avoids environmental pollution and water resource waste.
2) The invention has strong adaptability. The umbrella-shaped rotary spraying device of the scale cleaning device is foldable and rotatable, and the guide rod of the umbrella-shaped rotary spraying device is retractable, so that the umbrella-shaped rotary spraying device can be adjusted to adapt to working objects according to cleaning objects with different inner diameters.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
FIG. 2 is a schematic view of the present invention suitable for boiler scale removal.
In the figure: 1-umbrella-shaped rotary spraying device, 2-electric cabinet, 3-motor, 4-rotator, 5-water jet interface, 6-guide rod telescopic device, 7-water pump, 8-water storage tank, 9-guide rod, 11-stretcher, 12-hinged ring, 13-diverter, 14-honeycomb duct, 15-pull rod, 16-annular telescopic tube, 17-cavitation nozzle, 18-diversion cavity and 19-annular nozzle.
Detailed Description
The technical scheme of the invention is further specifically described below with reference to fig. 1-2.
Referring to fig. 1, the water jet-based scale removing method and device comprises an umbrella-shaped rotary spraying device (1), an electric cabinet (2), a motor (3), a rotator (4), a water jet interface (5), a guide rod telescopic device (6), a water pump (7), a water storage tank (8) and a guide rod (9). The umbrella-shaped rotary spraying device (1) is composed of a stretcher (11), a hinge ring (12), a flow divider (13), a flow guide pipe (14), a pull rod (15), an annular telescopic pipe (16), a cavitation nozzle (17), a flow guide cavity (8) and an annular nozzle device (19). The number of the annular nozzle devices (19) is between 8 and 20, the number of the flow guide cavities (18) is between 4 and 6, the number of the annular telescopic tubes (16) is between 12 and 26, and the specific number is determined by the inner diameter size of an object to which the main number is applied. The annular nozzle device (19), the flow guide cavity (18) and the annular telescopic pipe (16) are alternately connected with each other to form a closed circular ring, the flow guide cavity and the annular telescopic pipe (16) are uniformly arranged on the circular ring, the annular nozzle device (19) is telescopic, and 20-50 cavitation nozzles (17) are arranged on the annular nozzle device (19). One end of the flow guide pipe (14) is connected with the flow guide cavity (18), and the other end of the flow guide pipe is connected with the flow divider (13); the draft tube (14) is collapsible; the diverter (13) is fixedly arranged at the tail end of the guide rod (9). The pull rod (15) is divided into two types: one end of the device is hinged with the flow guiding cavity (18) or the annular nozzle device (19), and the other end of the device is hinged with the stretcher (11); one end of the other end is hinged with the flow guiding cavity (18) or the annular nozzle device (19), the other end is hinged with the hinge ring (12), and the hinge ring (12) is fixedly arranged at the tail end position of the guide rod (9). The stretcher (11) can be controlled by the electric cabinet (2) and further moves along the guide rod (9). When the stretcher (11) moves along the guide rod (9), the umbrella-shaped rotary spraying device (1) can be unfolded or contracted, so that the stretcher can adapt to different working objects. The rotator (4) is connected with the motor (3) and controlled by the electric cabinet (2), and can drive the umbrella-shaped rotary spraying device (1) to rotate. The guide rod telescopic device (6) is controlled by the electric cabinet (2) and can enable the guide rod (9) to extend or retract, so that the length of the guide rod (9) is regulated and controlled. The water pump (7) outputs pressurized water in the water storage tank (8), the output high-pressure water jet is led into the guide rod (9) through the water jet interface device (5), is led to the diverter (13) through the guide rod (9), reaches the annular nozzle device (19) through the diversion pipe (14), the diversion cavity (18), the annular telescopic pipe (16) and the like, and is sprayed out through the cavitation nozzle (17) to perform scale removal operation.
Specific example 1: referring to fig. 2, a schematic diagram of the present invention is shown, particularly applied to boiler scale removal. The electric cabinet (2) controls the stretcher (11) to move along the guide rod (9) so as to reduce the opening degree of the umbrella-shaped rotary spraying device (1) and enable the stretcher to enter the boiler in a smaller posture; after the umbrella-shaped rotary spraying device (1) enters the boiler, the stretcher (11) moves along the guide rod (9) again so as to open the umbrella-shaped rotary spraying device (1) and prepare for cleaning. The water pump (7) outputs the pressurized water in the water storage tank (8), the output high-pressure water jet is led into the guide rod (9) through the water jet interface device (5), is led to the diverter (13) through the guide rod (9), reaches the annular nozzle device (19) through the guide pipe (14), the guide cavity (18), the annular telescopic pipe (16) and the like, and is sprayed out through the cavitation nozzle (17) to perform scale removal operation. The electric cabinet (2) controls the motor (3) to drive the rotator (4) to rotate so as to drive the umbrella-shaped rotary spraying device (1) to rotate; the electric control box (2) controls the guide rod telescopic device (6) to extend or retract the guide rod (9). The device can realize the omnibearing scale removal operation without dead angles in the boiler through the rotation of the rotator (4) and the extension and retraction of the guide rod (9).
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather, the invention is capable of numerous variations and modifications without departing from the spirit and scope of the invention. The scope of the invention is defined by the appended claims and equivalents. Meanwhile, although terms such as umbrella-shaped rotary spraying device (1), electric cabinet (2), motor (3), rotator (4), water jet interface (5), guide rod telescopic device (6), water pump (7), water storage tank (8), guide rod (9), stretcher (11), hinge ring (12), diverter (13), guide pipe (14), pull rod (15), annular telescopic pipe (16), cavitation nozzle (17), guide cavity (18) and annular nozzle device (19) are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (5)
1. The scale removing device based on water jet comprises an umbrella-shaped rotary spraying device (1), an electric cabinet (2), a motor (3), a rotator (4), a water jet interface (5), a guide rod telescopic device (6), a water pump (7), a water storage tank (8) and a guide rod (9); the umbrella-shaped rotary spraying device (1) consists of a stretcher (11), a hinge ring (12), a flow divider (13), a flow guide pipe (14), a pull rod (15), an annular telescopic pipe (16), a cavitation nozzle (17), a flow guide cavity (18) and an annular nozzle device (19); the method is characterized in that: the electric cabinet (2) controls the stretcher (11) to move along the guide rod (9) so as to reduce the opening degree of the umbrella-shaped rotary spraying device (1) and enable the stretcher to enter the cleaning object in a smaller posture; after the umbrella-shaped rotary spraying device (1) enters the cleaning object, the stretcher (11) moves along the guide rod (9) again to open the umbrella-shaped rotary spraying device (1), so that cleaning preparation is made; the water pump (7) pressurizes water in the water storage tank (8) and outputs the pressurized water, the outputted high-pressure water jet is led into the guide rod (9) through the water jet interface device (5), is led to the diverter (13) through the guide rod (9), reaches the annular nozzle device (19) through the diversion pipe (14), the diversion cavity (18) and the annular telescopic pipe (16), and is sprayed out through the cavitation nozzle (17) to perform scale removal operation; the annular nozzle device (19), the flow guide cavity (18) and the annular telescopic pipe (16) are alternately connected with each other to form a closed type circular ring, and the annular nozzle device, the flow guide cavity and the annular telescopic pipe are uniformly arranged on the circular ring; the electric cabinet (2) controls the motor (3) to drive the rotator (4) to rotate so as to drive the umbrella-shaped rotary spraying device (1) to rotate; the electric control box (2) controls the guide rod telescopic device (6) to extend or retract the guide rod (9); by means of rotation of the rotator (4) and extension and contraction of the guide rod (9), the device can realize omnibearing scale removal operation without dead angles on a cleaning object.
2. The water jet based scale removal device according to claim 1, characterized in that the number of annular nozzle devices (19), guide chambers (18) and annular bellows (16) varies according to the applicable cleaning object, the specific number of which is mainly determined according to the inner diameter size of the cleaning object; specifically, the annular nozzle devices (19) are arranged between 8 and 20, the flow guide cavities (18) are arranged between 4 and 6, and the annular telescopic tubes (16) are arranged between 12 and 26; the annular telescopic tube (16) is telescopic; 20-50 cavitation nozzles (17) are arranged on the annular nozzle device (19).
3. A water jet based scale removal device according to claim 1, characterized in that the pull rod (15) is divided into two types: one end of the device is hinged with the flow guiding cavity (18) or the annular nozzle device (19), and the other end of the device is hinged with the stretcher (11); the other end is hinged to the flow guide cavity (18) or the annular nozzle device (19), the other end is hinged to the hinge ring (12), the hinge ring (12) is fixedly arranged at the tail end of the guide rod (9), and the stretcher (11) can be controlled by the electric cabinet (2) to move along the guide rod (9).
4. The water jet based scale removal device according to claim 1, wherein one end of the flow guide tube (14) is connected to the flow guide chamber (18) and the other end is connected to the flow divider (13); the diverter (13) is fixedly arranged at the tail end of the guide rod (9), and the guide pipe (14) is retractable.
5. The water jet based scale removal device according to claim 1, characterized in that the water pressure of the high pressure water jet output by the water pump (7) is between 20 and 30 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610368074.XA CN107442534B (en) | 2016-05-30 | 2016-05-30 | Water jet-based scale removal method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610368074.XA CN107442534B (en) | 2016-05-30 | 2016-05-30 | Water jet-based scale removal method and device |
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| CN107442534A CN107442534A (en) | 2017-12-08 |
| CN107442534B true CN107442534B (en) | 2023-06-27 |
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| CN201610368074.XA Active CN107442534B (en) | 2016-05-30 | 2016-05-30 | Water jet-based scale removal method and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108954289B (en) * | 2018-05-28 | 2019-11-05 | 安徽省凤阳酿酒有限责任公司 | Machine boiler feed water dirt remove device |
| CN112024554A (en) * | 2020-09-08 | 2020-12-04 | 大庆学府石油科技有限公司 | Self-suction environment-friendly scale-removing and pollution-discharging device and method for jet flow rotary brush of container tank |
| CN114293954B (en) * | 2021-12-06 | 2023-10-13 | 中国矿业大学 | Coal bed gas pipe cleaning equipment |
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| US5244498A (en) * | 1991-04-09 | 1993-09-14 | W. R. Grace & Co. Of Canada Ltd. | Concrete mixing drum cleaning method and apparatus |
| CN1744973A (en) * | 2002-01-25 | 2006-03-08 | 马丁·J·瓦特克 | Method and apparatus for the removal of concrete scale |
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| CN105170589A (en) * | 2015-10-19 | 2015-12-23 | 安徽理工大学 | Vertical storage tank shell cleaning equipment |
| CN204912217U (en) * | 2015-07-15 | 2015-12-30 | 武汉新概念化工有限公司 | Reation kettle high pressure water agent efflux belt cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8122898B2 (en) * | 2004-10-13 | 2012-02-28 | Aquajet Ltd. | High-pressure apparatus and method for removing scale from a tank |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244498A (en) * | 1991-04-09 | 1993-09-14 | W. R. Grace & Co. Of Canada Ltd. | Concrete mixing drum cleaning method and apparatus |
| CN1744973A (en) * | 2002-01-25 | 2006-03-08 | 马丁·J·瓦特克 | Method and apparatus for the removal of concrete scale |
| CN101148069A (en) * | 2007-10-31 | 2008-03-26 | 三一重工股份有限公司 | Spraying cleaning device for stirring main unit |
| CN103170283A (en) * | 2013-03-27 | 2013-06-26 | 张家港市科华化工装备制造有限公司 | Head tank with cleaning mechanism |
| CN204420969U (en) * | 2015-01-19 | 2015-06-24 | 浙江徐氏厨房设备有限公司 | Gas steam generator apparatus for eliminating sludge |
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| CN105170589A (en) * | 2015-10-19 | 2015-12-23 | 安徽理工大学 | Vertical storage tank shell cleaning equipment |
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