CN113654825A - Sampling device for scale layer on metal surface - Google Patents
Sampling device for scale layer on metal surface Download PDFInfo
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- CN113654825A CN113654825A CN202111109911.4A CN202111109911A CN113654825A CN 113654825 A CN113654825 A CN 113654825A CN 202111109911 A CN202111109911 A CN 202111109911A CN 113654825 A CN113654825 A CN 113654825A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention provides a sampling device for a scale layer on a metal surface, which comprises: the positioning plate is made of flexible materials and is suitable for being adsorbed on the surface of the scale layer; the positioning plate is provided with a hollow part which is used for framing a to-be-sampled area; the collecting tank is provided with an accommodating cavity with an opening at the top end and is used for accommodating a dirty sample; the collecting vat passes through extending structure to be connected on the locating plate, through adjusting extending structure's length, make its an end face that links up with the collecting vat keep the horizontality, and then make the collecting vat be in vertical state all the time under the action of gravity. The positioning plate can adapt to planes and curved surfaces, the area to be sampled can completely correspond to the hollow part, secondary adjustment of the hollow part is avoided, and the positioning plate can be suitable for sampling in a narrow space; the collecting vat adapts to the area of waiting to sample of different inclination through adjusting extending structure, makes the collecting vat be in vertical attitude all the time to the dirt appearance homoenergetic falls into the collecting vat under the action of gravity.
Description
Technical Field
The invention relates to the technical field of sampling, in particular to a sampling device for a scale layer on a metal surface.
Background
In order to check and master the corrosion, scaling or salt deposition conditions of the thermal power generating unit, the control and supervision of the quality of media such as water, steam and the like in the operation period of the thermal power generating unit and the protection method of the thermal power generating unit during the stop/standby period of the thermal power generating unit are comprehensively checked and evaluated, and the scale layers on the surfaces of power generating equipment such as the inner wall of a steam drum, the blade of a steam turbine, the inner wall of a deaerator and the like are sampled and analyzed periodically according to standards during the stop period of the thermal power generating unit.
At present, the specific operation mode of scraping and sampling the scale layer is as follows: preparing a plurality of pieces of paper with holes of a certain area, tightly attaching the paper to the surface of equipment to be sampled by hands, and scraping dirty samples exposed at the holes by a scraper; the tray is aligned with the area to be sampled to take the falling scale sample.
The above sampling method has the following defects: at least two persons are required to carry out cooperative operation, and when the space of a position to be sampled is narrow, the cooperative operation is easy to be carried out due to insufficient space; the position adjustment between the tray and the area to be sampled needs longer time, and dirty samples are easy to scatter due to poor adjustment effect; in the sampling process, the paper position is easy to slide and break; the paper is difficult to be completely attached to the curved scale layer, so that the paper is easily wrinkled, and the sizes of holes in the paper are affected by the wrinkling of the paper.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that in the prior art, paper is adopted for auxiliary sampling, the paper is difficult to be completely attached to a scale layer, the paper is easy to slide, and the scale sample receiving and taking effect is poor, so that the sampling device for the scale layer on the metal surface is provided.
In order to solve the technical problem, the invention provides a sampling device for a scale layer on a metal surface, which comprises:
the positioning plate is made of flexible materials and is suitable for being adsorbed on the surface of the scale layer; the positioning plate is provided with a hollow part, and the hollow part is used for framing a to-be-sampled area;
the collecting tank is provided with an accommodating cavity with an opening at the top end and is used for accommodating a dirty sample;
the collecting groove is connected to the positioning plate through a telescopic structure, and the length of the telescopic structure is adjusted to enable the collecting groove to be in a horizontal state with one end face connected with the collecting groove, so that the collecting groove is in a vertical state all the time under the action of gravity.
Further, the collecting groove is detachably connected to the positioning plate.
Further, the collecting groove is fixedly connected with the telescopic structure, and the telescopic structure is connected to the positioning plate through a zipper.
Furthermore, the positioning plate is a rubber soft magnetic plate and is suitable for carrying out magnetic adsorption with the scale layer.
Further, the telescopic structure comprises:
the piano plate is suitable for elastic contraction and enlargement along the length direction of the piano plate;
the two pull ropes are respectively arranged on the left side and the right side of the piano plate; one end of the pull rope is connected to the top of the piano plate, and the other end of the pull rope is connected to the bottom of the piano plate;
by adjusting the length of the stay cord, the piano plate can be zoomed along the length direction.
Furthermore, a bell rope buckle is connected to the pull rope, and the length of the pull rope is limited through the bell rope buckle.
Furthermore, the collecting groove is formed by detachably enclosing a folding plate.
Furthermore, the folding plate is of a rectangular structure, the folding plate is divided into an isosceles trapezoid area which is symmetrical up and down and an isosceles triangle area which is symmetrical left and right through a crease, and the isosceles triangle area is divided into a right-angled triangle area which is symmetrical up and down through the crease;
the isosceles trapezoid areas at the lower part are folded upwards along the crease, and the two isosceles triangle areas are respectively folded inwards along the crease to form the collecting tank;
the symmetrical crease of the right-angled triangle area is detachably clamped with a fixing clamp, and the fixing clamp enables the collecting groove to maintain the shape of the collecting groove.
Furthermore, the folding plate is made of hard smooth plastic.
The technical scheme of the invention has the following advantages:
1. according to the sampling device for the scale layer on the metal surface, provided by the invention, the positioning plate is made of a flexible material and can adapt to a plane and a curved surface, and the area to be sampled can completely correspond to the hollow part, so that the hollow part is prevented from being adjusted for the second time; the positioning plate can be adsorbed on the surface of the scale layer, and an operator does not need to press and fix the positioning plate by hands, so that the manual work is saved, and the positioning plate can be suitable for sampling in a narrow space; the collecting vat is connected with the locating plate through extending structure, adapts to different inclination's the area of waiting to sample through adjusting extending structure, makes the collecting vat be in vertical attitude all the time to the dirt appearance homoenergetic falls into in the collecting vat under the action of gravity. The sampling device can be suitable for surfaces with different inclination angles and different shapes, does not need manual assistance to be adsorbed and pressed on the surface of the scale layer, and is strong in compatibility and high in efficiency; meanwhile, the scale sample can be effectively collected, so that the obtained scale sample has stronger representativeness.
2. According to the sampling device for the metal surface scale layer, after the scale sample is collected, the collecting tank can be taken down independently, the scale sample can be led out to the designated container, and the scale sample is prevented from being scattered in the separation process of the positioning plate and the surface of the scale layer.
3. According to the sampling device for the scale layer on the metal surface, the folding plate and the fixing clamp are matched to form the collecting tank in a surrounding mode, after the scale sample is collected, the collecting tank is unfolded, and then the scale sample is led out to the appointed container, so that residual scale sample is prevented from being stored in the collecting tank.
4. According to the sampling device for the scale layer on the metal surface, provided by the invention, the folding plate is made of hard smooth plastic, so that adhesion between the scale sample and the folding plate is avoided, and the folding plate is convenient to clean.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front view of the sampling device with the collection trough in a deployed state.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a front view of the sampling device with the collecting vessel in a folded state.
Fig. 4 is a left side view of fig. 3.
Description of reference numerals:
1. positioning a plate; 2. collecting tank; 3. a zipper; 4. a piano plate; 5. pulling a rope; 6. a bell rope buckle; 7. a first fold; 8. a second fold; 9. a third fold; 10. a fourth fold; 11. a fifth fold; 12. a sixth fold; 13. a seventh crease; 14. a fixing clip; 15. a hollow-out part.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The sampling device for the metal surface scale layer provided by the embodiment comprises: locating plate 1, collecting vat 2 and extending structure.
As shown in fig. 1 and 2, the positioning plate 1 is a rectangular structure and is a rubber soft magnetic plate; the positioning plate 1 can be magnetically adsorbed on the surface of the scale layer because the scale layer is formed on the surface of the metal; the soft rubber magnetic plate is made of flexible materials, so that the positioning plate 1 can be completely attached to a plane and a curved surface, the positioning plate 1 cannot be folded, and the area to be sampled, which is framed by the hollow part 15, cannot be influenced; the hollow part 15 is located the central point department of putting of locating plate 1, hollow part 15 is the rectangle frame, hollow part 15 has following several kinds of dimensions: 5cm × 10cm, 5cm × 15cm, 5cm × 20cm, 5cm × 25cm, 10cm × 10cm, 10cm × 15cm, 10cm × 20cm, 10cm × 25cm, and 15cm × 15 cm. The collecting groove 2 is located under the positioning plate 1, an expansion structure is fixedly connected to the upper end face of the collecting groove 2, a first chain belt of the zipper 3 is fixed to the lower end face of the positioning plate 1, a second chain belt of the zipper 3 is fixed to the upper end face of the expansion structure, the collecting groove 2 is meshed with the first chain belt of the positioning plate 1 through the second chain belt of the expansion structure, and therefore the collecting groove 2 is detachably connected with the positioning plate 1.
As shown in fig. 1 and 3, the telescopic structure includes: a piano plate 4 and a pull cord 5. The wind instrument plate 4 and the positioning plate 1 and the like are arranged vertically and rightly, and the wind instrument plate 4 can be elastically zoomed along the length direction. The two pull ropes 5 are respectively arranged on the left side and the right side of the piano plate 4, one end of each pull rope 5 is connected to the top of the piano plate 4, and the other end of each pull rope 5 is connected to the bottom of the piano plate 4; the pull rope 5 is connected with a bell rope buckle 6, and the length of the pull rope 5 is locked and limited through the bell rope buckle 6. The length of the guy rope 5 is changed to zoom the organ board 4 in the length direction until the lower end face of the organ board 4 is in a horizontal state. As shown in fig. 3, the scale layer is inclined to the left, and the bottom surface of the gusset 4 is inclined, so that the collecting groove 2 is inclined; adjust the left stay cord 5 length of wind instrument board 4, make left side stay cord 5 shorten, make the bottom surface of wind instrument board 4 be in the horizontality, and then make collecting vat 2 be in vertical state under the action of gravity, make the dirty appearance of fretwork portion 15 department can be in collecting vat 2 under the action of gravity.
As shown in fig. 3 and 4, the collecting tank 2 is formed by detachably enclosing a folding plate, and the folding plate is made of hard smooth plastic. The folding plate is of a rectangular structure and is made of hard smooth plastic; be equipped with many creases on the folded sheet, the crease includes: a first fold 7 horizontally arranged at the middle part, a second fold 8 horizontally arranged at the middle left part, a third fold 9 horizontally arranged at the middle right part, a fourth fold 10 inclined towards the lower right part, a fifth fold 11 inclined towards the lower left part, a sixth fold 12 inclined towards the upper right part and a seventh fold 13 inclined towards the upper left part, wherein the second fold 8 and the third fold 9 are positioned on the extension line of the first fold 7; the above-mentioned crease divides the folding plate into: the isosceles trapezoid areas are vertically symmetrical, and the isosceles triangle areas are horizontally symmetrical, wherein the isosceles triangle areas are divided into vertically symmetrical right-angled triangle areas by the second folding marks 8 and the third folding marks 9. The isosceles trapezoid area at the lower part is folded upwards along the first crease 7, the isosceles triangle area at the left side is folded inwards along the second crease 8, the third crease 9 and the sixth crease 12, and the isosceles triangle area at the right side is folded inwards along the fourth crease 10, the fifth crease 11 and the seventh crease 13 to form the collecting tank 2; after folding, the second fold 8 and the third fold 9 are each fixed by a fixing clip 14, so that the collecting gutter 2 maintains its own shape.
And after the scale sample is collected, the zipper 3 is unzipped, the collecting tank 2 is taken down, the collecting tank 2 is unfolded and laid flat, and finally the collected scale sample is poured into a specified container to finish the sampling work.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A sampling device for metal surface scale layers, comprising:
the positioning plate (1) is made of flexible materials and is suitable for being adsorbed on the surface of the scale layer; the positioning plate (1) is provided with a hollow-out part (15), and the hollow-out part (15) is used for framing a to-be-sampled area;
a collecting tank (2) which is provided with an accommodating cavity with an open top end and is used for receiving a scale sample;
the collecting groove (2) is connected to the positioning plate (1) through a telescopic structure, and the length of the telescopic structure is adjusted to enable the collecting groove to be in a horizontal state with one end face connected with the collecting groove (2), so that the collecting groove (2) is always in a vertical state under the action of gravity.
2. Sampling device for metal surface scale layers according to claim 1 characterized in that the collection trough (2) is removably attached to the positioning plate (1).
3. Sampling device for metal surface scale layers according to claim 2, characterized in that the collection trough (2) is fixedly connected with the telescopic structure, which is connected to the positioning plate (1) by means of a zip (3).
4. Sampling device for metal surface scale deposit according to claim 1 characterized in that the positioning plate (1) is a soft rubber magnetic plate suitable for magnetic adsorption with the scale deposit.
5. The sampling device for metal surface scale layer according to claim 1, wherein the telescopic structure comprises:
a piano plate (4) adapted to be elastically retractable along its length;
two pull ropes (5) are respectively arranged at the left side and the right side of the piano plate (4); one end of the pull rope (5) is connected to the top of the piano plate (4), and the other end of the pull rope is connected to the bottom of the piano plate (4);
the length of the guy rope (5) is adjusted, so that the piano plate (4) can be zoomed along the length direction.
6. The sampling device for metal surface scale layer according to claim 5, characterized in that a bell-shaped rope buckle (6) is connected on the pulling rope (5), and the pulling rope (5) is limited in length by the bell-shaped rope buckle (6).
7. Sampling device for metal surface scale layers according to claim 1 characterized in that the collection trough (2) is removably enclosed by folded plates.
8. The sampling device for metal surface scale layer according to claim 7, wherein the folding plate is a rectangular structure, the folding plate is divided into isosceles trapezoid area which is symmetrical up and down and isosceles triangle area which is symmetrical left and right by crease, the isosceles triangle area is divided into right triangle area which is symmetrical up and down by crease;
the isosceles trapezoid areas at the lower part are folded upwards along the crease, and the two isosceles triangle areas are respectively folded inwards along the crease to enclose and combine the collecting groove (2);
the symmetrical crease of the right-angled triangle area is detachably clamped with a fixing clamp (14), and the fixing clamp (14) enables the collecting tank (2) to maintain the shape of the collecting tank.
9. The sampling device for metal surface scale according to claim 7, wherein the folded plate is made of hard smooth plastic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111109911.4A CN113654825B (en) | 2021-09-18 | 2021-09-18 | Sampling device for metal surface scale layer |
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| CN202111109911.4A CN113654825B (en) | 2021-09-18 | 2021-09-18 | Sampling device for metal surface scale layer |
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| CN113654825A true CN113654825A (en) | 2021-11-16 |
| CN113654825B CN113654825B (en) | 2023-09-26 |
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