JP2006239633A - Strainer washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strainer washer which does not pollute surroundings, has a satisfactory operability and has a high safety. <P>SOLUTION: The strainer washer is composed of: a washing tank 10 in which a strainer S can be housed and the whole surroundings is closed; a rotation bar 20 which is freely rotatably disposed vertically on the surrounding end part of the washing tank 10 and has a handle 21 attached thereto; a seat 30 which is freely rotatably disposed on the central lower part of the washing tank 10 so as to mount the strainer S on the seat; a nozzle body 40 which is attached to the rotation bar 20 and is provided with spray nozzles 41 for spraying washing liquid L to the strainer S mounted on the seat 30; and a pump 50 disposed outside the washing tank 10. The strainer S is washed by circulating the washing liquid L stored on the bottom part of the washing tank 10 by means of the pump 50 and spraying the washing liquid L from the spray nozzles 41 while rotating the rotation bar 20 and rotating the strainer S via the seat 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for cleaning a strainer (filter) for heavy oil used in a thermal power plant.

  Thermal power plants use strainers to filter heavy oil. This strainer must be cleaned regularly, but conventionally, the cleaning is performed by a worker wearing protective equipment at a cleaning place surrounded by a sheet after being immersed in warm kerosene or light oil. Steam is directly sprayed manually.

In addition, although the apparatus which wash | cleans the air filter for engines and an air conditioner has been created until now (for example, refer patent documents 1 and 2), the apparatus which wash | cleans the strainer for heavy oils does not exist so far.
JP 2000-334233 A JP-A-8-182907

However, the conventional means for cleaning the strainer has the following problems.
(1) During cleaning, heavy oil and steam are scattered to contaminate the surroundings, and the cleaning operation is troublesome.
(2) The workability is poor because it is necessary to perform the washing directly by hand and enclose the area around the washing area with a sheet, or the worker must wear protective equipment.
(3) Since kerosene and light oil need to be heated, there is a risk of ignition, which is dangerous and requires constant monitoring.
(4) Since it is necessary to transport the strainer to the cleaning place, the periphery is soiled and the workability is poor.

  Accordingly, an object of the present invention is to provide a strainer cleaning device that does not pollute the surroundings, has good workability, and is highly safe.

  In order to achieve the above object, a strainer cleaning device (1) according to claim 1 of the present invention cleans heavy oil adhering to a strainer (S) used for filtering heavy oil in a thermal power plant. A strainer cleaning device, which is sized to accommodate the strainer (S), and is provided in a cleaning tank (10) whose entire periphery is closed, and a peripheral end of the cleaning tank (10) that is vertically rotatable. , A rotating bar (20) to which a handle (21) is attached, and a central lower portion of the cleaning tank (10). The strainer (S) is rotatably provided on the rotating bar (20). A base (30) that is interlocked by one interlocking member (31) and rotates in synchronism with the rotating bar (20), and a strainer (S) mounted on the rotating bar (20) and mounted on the base (30). ) A nozzle body (40) provided with a spray nozzle (41) for spraying, and a suction port (51) communicated with the bottom of the cleaning tank (10) provided outside the cleaning tank (10); 52) and a pump (50) communicating with the nozzle body (40), and by rotating the rotating bar (20), the strainer (S) is rotated through the pedestal (30). The cleaning liquid (L) stored in the bottom of the cleaning tank (10) is circulated by the pump (50) and sprayed from the spray nozzle (41) to clean the strainer (S). .

  The strainer cleaning device (1) according to claim 2, wherein a thread (61) is formed on an outer peripheral surface in the vicinity of the rotating bar (20), and the rotating bar (20) and the second interlocking member are engraved. (62) by vertically providing an interlocking bar (60) that rotates synchronously, screwing the nozzle body (40) into the interlocking bar (60), and rotating the rotating bar (20), The nozzle body (40) is moved up and down.

  The strainer cleaning device (1) according to claim 3, wherein the interlocking bar (60) is attached to be rotatable in a horizontal direction around the rotating bar (20), and the spray nozzle (41) is attached. The spray nozzle (41) is provided so as to be rotatable in the horizontal direction, and is capable of contacting and separating from the strainer (S).

  Furthermore, the strainer washing | cleaning apparatus (1) of Claim 4 provides the partition (11) in the horizontal direction below the said base (30) of the said washing tank (10), and the bottom part of the said washing tank (10) And a storage chamber (12) for storing the cleaning liquid (L). An opening through which the cleaning liquid (L) can pass is formed between the partition wall (11) or the partition wall (11) and the cleaning tank (10).

  Furthermore, the strainer cleaning device (1) according to claim 5 is characterized in that a power transmission member is provided in place of the handle (21) and the rotating bar (20) is rotated by power.

  Symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and the best mode for carrying out the invention described later.

  According to the strainer cleaning device of the first aspect of the present invention, the cleaning tank with the entire periphery closed, the rotating bar to which the handle is attached, the base that rotates in synchronization with the rotating bar, the nozzle body that cleans the strainer, and the cleaning Since the pump is configured to circulate the cleaning liquid stored in the bottom of the tank, the following effects are exhibited.

(1) Since the entire periphery is cleaned in a cleaning tank, heavy oil and cleaning liquid do not scatter around. Therefore, the surroundings are not soiled and cleaning work is easy.
(2) Cleaning is performed mechanically by injecting the cleaning liquid supplied from the pump into the rotating strainer from the injection nozzle in the cleaning tank, so that the cleaning efficiency is high. Further, it is not necessary to enclose the cleaning place with a sheet or to wear protective equipment. Therefore, workability is good.
(3) Since no kerosene or light oil is used, it is not necessary to heat them. Therefore, it is safe and does not require monitoring.
(4) By placing the strainer cleaning device on a transport vehicle and transporting it, there is no need to transport the strainer with heavy oil attached to the cleaning site. Therefore, the periphery is not soiled and the workability is excellent.

  Further, according to the invention described in claim 2, in addition to the function and effect of the invention described in claim 1, the nozzle body is moved up and down by rotating the rotating bar. Can be washed. Therefore, workability is further improved.

  According to the third aspect of the present invention, since the spray nozzle is made contactable and separable with respect to the strainer, the spray nozzle can be moved forward or backward according to the size (diameter) of the strainer. it can. Therefore, a plurality of types of strainers having different sizes can be effectively cleaned.

  Furthermore, according to the invention described in claim 4, since the cleaning tank is provided with the partition wall and the cleaning liquid storage chamber is provided, for example, the cleaning liquid scatters while the apparatus is being transported, and the nozzle body or the like becomes unnecessary. It can be prevented from adhering.

  Further, according to the fifth aspect of the present invention, since the power transmission member is provided instead of the handle and the rotating bar is rotated by the power, the cleaning operation is further facilitated and the workability can be further improved.

With reference to FIG. 1 thru | or FIG. 4, the strainer washing | cleaning apparatus 1 which concerns on embodiment of this invention is demonstrated. FIG. 1 is a perspective view showing a strainer cleaning device 1 according to an embodiment of the present invention. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a front view. FIG. 4 is a plan view showing the movement of the nozzle body.
The strainer cleaning device 1 is a device that is used for filtering heavy oil in a thermal power plant and that cleans the strainer S to which the heavy oil adheres in large quantities. The cleaning tank 10, the rotating bar 20, the interlocking bar 60, and the base 30. The nozzle body 40 and the pump 50 are configured.

  The cleaning tank 10 has a rectangular parallelepiped shape that can accommodate the strainer S, and the entire periphery is closed by a transparent wall. In addition, at least one of the walls is a door that can be opened and closed, and a discharge port 13 for discharging the dirty cleaning liquid L is provided at the lower end. The washing tank 10 has a size that can be placed on a transport vehicle such as a truck.

  The rotating bar 20 is provided so as to be vertically rotatable at the peripheral end corner of the cleaning tank 10, its upper end protrudes from the upper surface of the cleaning tank 10, and a manual handle 21 is attached to the protruding portion. . The interlocking bar 60 is provided in the vicinity of the rotating bar 20 in a vertical shape, and a thread 61 is engraved on the outer peripheral surface thereof. The interlocking bar 60 is interlocked by the rotating bar 20 and the second interlocking member (gear and chain) 62. It rotates in synchronization with the rotation bar 20.

  The pedestal 30 is rotatably provided at the center lower portion of the cleaning tank 10 and mounts the strainer S thereon. The pedestal 30 is interlocked via the rotating shaft 32 by the rotating bar 20 and the first interlocking member (gear and chain) 31 and rotates in synchronization with the rotating bar 20. The base portion 42 of the nozzle body 40 is fitted to the rotary bar 20 so as to be movable up and down, and the intermediate portion 43 is screwed into the interlocking bar 60. An injection nozzle 41 that injects the cleaning liquid L onto the strainer S mounted on the pedestal 30 is attached to the tip.

  The pump 50 is provided outside the cleaning tank 10, and the suction port 51 communicates with the bottom of the cleaning tank 10 through the first pipe 53, and the discharge port 52 communicates with the spray nozzle 41 through the second pipe 54.

  In this embodiment, the interlocking bar 60 is attached so as to be rotatable in the horizontal direction about the rotating bar 20 as an axis. This attachment is performed by rotatably fitting the base portion of the nozzle body 40 attached to the interlocking bar 60 to the rotating bar 20. Moreover, the injection nozzle 41 is attached so as to be rotatable in the horizontal direction. This attachment can be performed, for example, by interposing a joint 44 between the injection nozzle 41 and the intermediate portion 43.

  A partition wall 11 is provided in the horizontal direction below the pedestal 30 of the cleaning tank 10, and a storage chamber 12 for storing the cleaning liquid L is formed at the bottom of the cleaning tank 10. Further, the filter 55 is interposed in the first pipe 53 to remove the dirt of the cleaning liquid L.

The strainer cleaning apparatus 1 operates as follows.
First, the apparatus 1 is placed on a transport vehicle such as a truck and transported to a place where there is a strainer S that needs to be cleaned. At this time, since the partition wall 11 is provided in the cleaning tank 10, the cleaning liquid L stored in the storage chamber 12 does not scatter and adhere to members such as the nozzle body 40 unnecessarily.
Next, the door of the cleaning tank 10 is opened, the strainer S to which heavy oil is attached is placed on the base 30, and the door is closed.
Subsequently, the interlocking bar 60 and the injection nozzle 41 are rotated in the horizontal direction to expand and contract in the front-rear direction, and an appropriate distance from the strainer S is ensured.

Then, the rotation bar 20 is rotated by turning the handle 21, and the strainer S is rotated via the pedestal 30. At the same time, the cleaning liquid L stored in the bottom of the cleaning tank 10 is circulated by the pump 50 and sprayed from the spray nozzle 41 to the strainer S, thereby cleaning the strainer S.
At this time, since the interlocking bar 60 rotates in synchronization with the rotation of the rotating bar 20, the nozzle body 40 screwed to the interlocking bar 60 moves upward or downward. Thereby, it can wash | clean evenly from the top to the bottom of the rotating strainer S. When the nozzle body 40 reaches the upper limit or lower limit position, the rotation direction of the handle 21 is changed and the nozzle body 40 is moved in the reverse direction.

  Note that the strainer S used in this thermal power plant is cylindrical, and sends heavy oil from the inside to the outside for filtration. Therefore, the apparatus 1 according to the present embodiment directs the cleaning liquid L from the outside to the inside. By injecting, the impurities can be effectively removed by pushing them back.

  In addition, the strainer cleaning device 1 can adjust the temperature of the cleaning liquid L by installing a sheathed heater and a thermostat temperature sensor in the storage chamber 12. Further, as the cleaning liquid L, it is possible to spray as necessary all kinds of non-flammable and non-hazardous mineral oil cleaning agents and steam used in the prior art.

It is a perspective view which shows the strainer washing | cleaning apparatus which concerns on embodiment of this invention. It is the sectional view on the AA line of FIG. It is a front view of the strainer washing | cleaning apparatus shown in FIG. It is a top view which shows the motion of the nozzle body in the strainer washing | cleaning apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Strainer washing | cleaning apparatus 10 Washing tank 11 Partition 12 Storage chamber 13 Discharge port 20 Rotating bar 21 Handle 30 Base 31 First interlocking member 32 Rotating shaft 40 Nozzle body 41 Injection nozzle 42 Base 43 Intermediate part 44 Joint 50 Pump 51 Suction port 52 Discharge Exit 53 First pipe 54 Second pipe 55 Filter 60 Interlocking bar 61 Screw 62 Second interlocking member S Strainer L Cleaning fluid

Claims (5)

A strainer cleaning device for cleaning heavy oil adhering to a strainer used for filtering heavy oil in a thermal power plant,
A washing tub that is large enough to accommodate the strainer and that has the entire periphery closed;
A rotating bar provided on the peripheral end of the cleaning tank so as to be vertically rotatable and attached with a handle;
A pedestal that is rotatably provided to mount the strainer on the lower center of the cleaning tank, is linked with the rotating bar and the first interlocking member, and rotates in synchronization with the rotating bar;
A nozzle body provided with an injection nozzle that is attached to the rotating bar and injects a cleaning liquid onto a strainer mounted on the pedestal;
A pump that is provided outside the cleaning tank, communicates a suction port with the bottom of the cleaning tank, and communicates a discharge port with the nozzle body;
By rotating the rotation bar, the cleaning liquid stored in the bottom of the cleaning tank is circulated by the pump and sprayed from the spray nozzle while rotating the strainer via a pedestal, thereby cleaning the strainer. A strainer cleaning device. In the vicinity of the rotating bar, a thread is engraved on the outer peripheral surface, and an interlocking bar that rotates in synchronization with the rotating bar and the second interlocking member is provided vertically,
Screwing the nozzle body into the interlocking bar;
The strainer cleaning apparatus according to claim 1, wherein the nozzle body is moved up and down by rotating the rotating bar.   The interlocking bar is attached so as to be rotatable in the horizontal direction around the rotating bar, and the injection nozzle is provided so as to be rotatable in the horizontal direction, so that the injection nozzle can be contacted and separated from the strainer. The strainer cleaning apparatus according to claim 1 or 2, wherein   4. The cleaning tank according to any one of claims 1 to 3, wherein a partition wall is provided in a horizontal direction below the pedestal, and a storage chamber for storing the cleaning liquid is formed at the bottom of the cleaning tank. The strainer cleaning apparatus as described.   5. The strainer cleaning device according to claim 1, wherein a power transmission member is provided instead of the handle, and the rotating bar is rotated by power.

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