CN218223907U - A rust cleaning dust collector for nuclear power plant VES gas holder - Google Patents
A rust cleaning dust collector for nuclear power plant VES gas holder Download PDFInfo
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- CN218223907U CN218223907U CN202222505318.8U CN202222505318U CN218223907U CN 218223907 U CN218223907 U CN 218223907U CN 202222505318 U CN202222505318 U CN 202222505318U CN 218223907 U CN218223907 U CN 218223907U
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Abstract
The utility model relates to the technical field of maintenance of gas storage tanks in nuclear power plants, in particular to a rust removing and dust removing device for VES gas storage tanks in nuclear power plants, which comprises a plurality of hollow pipes which are detachably connected end to end and also comprises a rust removing and dust removing piece which is detachably connected with the hollow pipes; the rust removing and dust removing piece comprises a main body part provided with a rust removing channel and a rust scraping part connected with the main body part; the rust removing channel is communicated with the inner cavity of the hollow pipe. This scheme is applicable to a jar body longer, and the access hole is less, and the access hole is to the very near VES gas holder of distance of wall, hollow tube cooperation dust extraction uses, and the connection can be dismantled from beginning to end to a plurality of hollow tubes, and operating personnel can select the hollow tube of suitable quantity in order to assemble the rust cleaning dust collector that length accords with the user demand, and each hollow tube needn't be nested in proper order, therefore the external diameter or the internal diameter that need not each hollow tube reduce in proper order, and then avoid the hollow tube to reduce because of the external diameter reduces bending strength, or because of the internal diameter reduces the problem that is blockked up by the rust slag easily.
Description
Technical Field
The utility model relates to a gas holder maintenance technical field of nuclear power plant especially relates to a rust cleaning dust collector for VES gas holder of nuclear power plant.
Background
The gas holder of the emergent resident system (VES) of main control room of nuclear power plant can lead to the inner wall to rust because of factors such as residual water or self material are not in time clear away during the construction installation, and inside still can the deposition in the use, needs regularly carry out inside rust cleaning dust removal to avoid blockking up the valve on the low reaches pipeline.
The gas holder is located the factory building, and its whole size can reach 6360X 6605X 3240mm, and its access hole to inside only is for being in the circular port of afterbody's diameter about 65mm, and the gas holder is installed in the factory building back, and the distance between its access hole and the wall has the condition less than one meter, consequently, can supply the maintainer to carry out the operation space of rust cleaning ash removal to its inside through the access hole very limited.
Chinese utility model patent with application number CN202120964189.1 discloses a natural gas pipeline inner wall rust layer scrapes out device, including action bars and clearance part, the clearance part including locate a plurality of first telescopic cylinder of action bars one side, with first telescopic cylinder sliding connection's first telescopic link, locate the motor of action bars one side and locate the board that strikes off of first telescopic link one end. This scheme scrapes the rust through scraping the board, and the rethread electromagnet is inhaled and is taken away from the pipeline behind the rust slag, is applicable to the great natural gas line of opening, but is not suitable for the access hole diameter only about 65mm, and the VES gas holder of inner chamber maximum dimension about 6m, and this scheme has following limitation: 1. the electromagnet can only adsorb rust slag and is difficult to adsorb dust; 2. the outer diameter of the electromagnet needs to be less than 65mm, the capacity of magnetically attracting the rust slag each time is limited, and the rust removing efficiency is low; 3. this scheme uses the telescopic link, and the sheathed tube external diameter that is located the outside must not be greater than 65mm, and the external diameter that other pipes in it were established to the cover will be littleer, so, after the telescopic link extension, its thinner department intensity is lower and buckle when scraping the rust easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide a rust cleaning dust collector for nuclear power plant VES gas holder, be applicable to the VES gas holder that the access hole is less, the operation space is limited, jar body length is longer.
The utility model discloses a can realize through following technical scheme:
a rust removal and dust removal device for a VES gas storage tank of a nuclear power plant comprises a plurality of hollow pipes which are detachably connected end to end, and also comprises a rust removal and dust removal piece which is detachably connected with the hollow pipes; the rust removing and dust removing piece comprises a main body part provided with a rust removing channel and a rust scraping part connected with the main body part; the rust removing channel is communicated with the inner cavity of the hollow pipe.
The hollow tube is matched with the dust suction device for use, so that dust in the VES air storage tank and the scraped rusty slag are sucked out through the inner cavity of the hollow tube, and the problem that the dust accumulation cannot be removed through the scheme of sucking the rusty slag out through magnetic suction in the prior art is solved.
The length of the tank body of the VES gas storage tank is long, the access hole is small, the distance between the access hole and the wall is limited by the condition that the distance is very close, and an operator needs to adjust the length of the rust removing and dust removing device so as to remove rust dust at different depths in the gas storage tank.
The hollow pipes are detachably connected end to end, or the hollow pipes are sequentially telescopically connected in a nested manner, so that the requirement of an operator on the length adjustment of the rust removing and dust removing device can be met. However, if the hollow pipes are sequentially nested and telescopically connected, the outer diameter of the hollow pipe nested on the outermost side is smaller than the caliber of the small access hole, the outer diameters of other sequentially nested hollow pipes are also required to be sequentially reduced, and the reduction of the outer diameters causes the reduction of the bending strength, so that the hollow pipe with the smaller outer diameter is easy to bend and damage in the rust scraping process due to the smaller bending strength; moreover, the outer diameters of the hollow pipes which are nested in sequence are reduced in sequence, and the inner diameters of the hollow pipes are also reduced in sequence, so that the hollow pipes are easy to block by the rust slag. According to the scheme, the hollow pipes are detachably connected end to end, an operator can select a proper number of hollow pipes to assemble, so that the length of the assembled rust removing and dust removing device meets the use requirement, the hollow pipes are not required to be sequentially nested, the outer diameters of the hollow pipes are not required to be sequentially reduced, and the bending strength of the hollow pipes is prevented from being reduced due to the reduction of the outer diameters; the inner diameter of each hollow pipe also does not need to be reduced in sequence, thereby being beneficial to avoiding being blocked by the rust slag. The adjacent hollow pipes can be connected in a splicing or screw connection mode and the like.
Preferably, the rust scraping part comprises a scraping pipe arranged around the outer side of the rust removing channel.
Therefore, the rust slag scraped by the scraping pipe can enter the rust discharging channel nearby and quickly, and the rust slag is convenient to discharge quickly.
Preferably, the scraper tube comprises scraper teeth.
The preferred arrangement of the scraping teeth is beneficial to reducing the contact area and further increasing the pressure under the condition of the same acting force so as to scrape rust more quickly.
Preferably, the hollow pipe comprises a main pipe part, and two ends of the main pipe part are respectively connected with a first sleeve and a second sleeve; two adjacent hollow pipes are sleeved through a first sleeve and a second sleeve; the sleeved sleeve I and the sleeved sleeve II are also locked through bolts and nuts.
The sleeve I and the sleeve II which are preferably sleeved can be locked by bolts and nuts with existing specifications on the market, and compared with the scheme that the sleeve I and the sleeve II are in threaded connection, the processing difficulty is reduced. Moreover, the wall thickness of the first sleeve and the second sleeve is very thin under the influence of the diameter of the access hole, if the first sleeve and the second sleeve are slightly deformed, the screwing connection can be influenced, and the influence of the slight deformation on the sleeving connection is small.
Preferably, the first sleeve is sleeved outside the second sleeve, and the second sleeve is connected to one end of the main pipe part, which is far away from the rust removing and dust removing part.
If dust and rust escape from the joint of the adjacent hollow pipes, the dust and rust need to enter a gap between the first sleeve and the second sleeve which are sleeved with each other. In the adjacent hollow pipes, the sleeve is sleeved outside the sleeve II, if one end of the main pipe part, far away from the rust removal and dust removal part, is connected with the sleeve I, and one end of the main pipe part, close to the rust removal and dust removal part, is connected with the sleeve II, so that the direction of further escape of dust from the inner cavity of the hollow pipe through the gap between the sleeve I and the sleeve II is the same as the direction of movement of the dust and rust under the action of suction of the dust suction device, and when the dust suction device works, the dust and rust in the inner cavity of the hollow pipe easily continues to move under the action of inertia to further escape through the gap between the sleeve I and the sleeve II after entering the gap between the sleeve I and the sleeve II; this scheme one end adapter sleeve two of keeping away from rust cleaning dust removal piece of main pipe portion is close to the one end adapter sleeve one of rust cleaning dust removal piece, so, the direction that dust or rust slag passed through the clearance between sleeve one and the sleeve pipe two from the inner chamber of hollow tube and further escaped, and the direction that moves is received dust extraction's suction effect with dirt rust opposite, so, be favorable to avoiding dust or rust slag further escaped through the clearance between sleeve pipe one and the sleeve pipe two under dust extraction during operation inertial action.
Preferably, one end of the main pipe part, which is connected with the second sleeve, is further connected with a third sleeve, and the third sleeve is sleeved outside the first sleeve.
Therefore, the sleeve joint strength between the adjacent hollow pipes is improved.
Preferably, the rust removing and dust removing piece further comprises a sleeve IV and a sleeve V which are connected with the main body part and are respectively attached to the inner side wall and the outer side wall of the sleeve I; the joint of the rust removing and dust removing piece and the hollow pipe is also locked by a bolt and a nut.
Therefore, the structure of the hollow pipe for connecting the rust removal and dust removal piece is the same as that of other hollow pipes, so that the production cost and the installation difficulty are reduced; the problem that once the hollow pipe used for connecting the rust removing and dust removing piece is lost, the hollow pipe cannot be replaced by other hollow pipes when the hollow pipe is unique can also be avoided.
Preferably, the rubber composition further comprises a sealing rubber; the sealing rubber is arranged between the sleeved sleeve I and the sleeved sleeve II, between the sleeve I and the sleeve III, between the sleeve I and the sleeve IV and between the sleeve I and the sleeve V.
The optimal selection is favorable for sealing the sleeve joint of the adjacent hollow pipes and the sleeve joint of the derusting and dedusting piece and the hollow pipes, so that the hollow pipes can better form the internal and external pressure difference when the dust suction device works, and further the dust and the rust slag can be sucked out more quickly. Due to the material characteristics of the rubber, the abrasion of the hollow pipe or the rust removal and dust removal piece at the sleeve joint part can be avoided.
Preferably, the sealing rubber is bonded to the outer side wall of the second sleeve, the inner side wall of the third sleeve, the outer side wall of the fourth sleeve and the inner side wall of the fifth sleeve.
Therefore, the problem that the sealing rubber is arranged on the surface of the exposed sleeve I and is easy to wear is avoided.
The embodiment of the utility model has the following beneficial effect:
1. the hollow tube can cooperate dust extraction to use to through the dust of the inner chamber suction VES gas holder of hollow tube and the rust slag of scraping, avoid prior art through the unable problem of clearing away the deposition of the scheme of magnetism suction rust slag.
2. The length of the VES gas storage tank is long, the access hole is small, the distance between the access hole and the wall is limited by the condition that the distance between the access hole and the wall is very short, and an operator needs to adjust the length of the rust removing and dust removing device so as to remove rust dust at different depths in the gas storage tank. The hollow pipes are detachably connected end to end, or the hollow pipes are sequentially telescopically connected in a nested manner, so that the requirement of an operator on the length adjustment of the rust removing and dust removing device can be met. However, if a plurality of hollow pipes are sequentially nested and telescopically connected, the outer diameter of the hollow pipe nested on the outermost side is smaller than the caliber of the small access hole, the outer diameters of other sequentially nested hollow pipes are required to be sequentially reduced, and the reduction of the outer diameter can cause the reduction of the bending strength, so that the hollow pipe with the smaller outer diameter is easy to bend and damage in the rust scraping process due to the smaller bending strength; moreover, the outer diameters of the hollow pipes which are nested in sequence are reduced in sequence, and the inner diameters of the hollow pipes are also reduced in sequence, so that the hollow pipes are easy to block by the rust slag. In the embodiment of the scheme, the hollow pipes are detachably connected end to end, and an operator can select a proper number of hollow pipes to assemble, so that the length of the assembled rust removing and dust removing device meets the use requirement, and the hollow pipes are not required to be nested in sequence, so that the outer diameters of the hollow pipes are not required to be reduced in sequence, and the bending strength of the hollow pipes is prevented from being reduced due to the reduction of the outer diameters; the inner diameter of each hollow pipe also does not need to be reduced in sequence, thereby being beneficial to avoiding being blocked by the rust slag.
3. The rust scraping part comprises a scraping pipe arranged around the outer side of the rust removing channel. Therefore, the rust slag scraped by the scraping pipe can enter the rust discharging channel nearby and quickly, and the rust slag is convenient to discharge quickly. Further, the scraping pipe comprises scraping teeth, the contact area is favorably reduced due to the arrangement of the scraping teeth, and then the pressure is increased under the condition that acting force is the same, so that rust can be scraped more quickly.
4. If dust and rust escape from the joint of the adjacent hollow pipes, the dust and rust need to enter a gap between the first sleeve and the second sleeve which are sleeved with each other. In the adjacent hollow pipes, the sleeve is sleeved outside the sleeve II, if one end of the main pipe part, far away from the rust removal and dust removal part, is connected with the sleeve I, and one end of the main pipe part, close to the rust removal and dust removal part, is connected with the sleeve II, so that the direction of further escape of dust from the inner cavity of the hollow pipe through the gap between the sleeve I and the sleeve II is the same as the direction of movement of the dust and rust under the action of suction of the dust suction device, and when the dust suction device works, the dust and rust in the inner cavity of the hollow pipe easily continues to move under the action of inertia to further escape through the gap between the sleeve I and the sleeve II after entering the gap between the sleeve I and the sleeve II; in the embodiment of the scheme, one end of the main pipe part, which is far away from the first rust removing and dust removing part, is connected with the second sleeve, and one end of the main pipe part, which is close to the first sleeve, is connected with the first sleeve, so that dust or rust slag passes through the gap between the first sleeve and the second sleeve from the inner cavity of the hollow pipe and moves in a direction opposite to the direction in which the dust and rust move under the action of suction force of the dust suction device, and thus, the dust or rust slag is prevented from further escaping through the gap between the first sleeve and the second sleeve under the action of inertia when the dust suction device works.
5. The rust removing and dust removing part comprises a sleeve IV and a sleeve V and is used for being attached to the inner side wall and the outer side wall of the sleeve I respectively, and the joint of the rust removing and dust removing part and the hollow pipe is locked through bolts and nuts. Therefore, the structure of the hollow pipe for connecting the rust removal and dust removal piece is the same as that of other hollow pipes, so that the production cost and the installation difficulty are reduced; the problem that once the hollow pipe used for connecting the rust removing and dust removing piece is lost, the hollow pipe cannot be replaced by other hollow pipes when the hollow pipe is unique can also be avoided.
6. Sealing rubber is arranged between the sleeved sleeve I and the sleeved sleeve II, between the sleeved sleeve I and the sleeved sleeve III, between the sleeved sleeve I and the sleeved sleeve IV and between the sleeved sleeve I and the sleeved sleeve V. The sleeve joint of the adjacent hollow pipes and the sleeve joint of the derusting and dedusting piece and the hollow pipes are sealed, so that the hollow pipes can better form the internal and external pressure difference when the dust suction device works, and further can suck out dust and rust slag more quickly; the abrasion of the hollow pipe or the rust removing and dust removing piece at the sleeve joint part can be avoided.
Drawings
FIG. 1 is a schematic top view of a rust removing and dust removing device connected with a dust collector;
FIG. 2 isbase:Sub>A cross-sectional view of the hollow tube of FIG. 1 taken along line A-A;
fig. 3 is a schematic perspective structure view of the rust removing and dust removing member.
In the figure: the device comprises a hollow pipe 1, a first sleeve 11, a second sleeve 12, a third sleeve 13, a main pipe 14, a rust removing and dust removing part 2, a main body 21, a rust removing channel 22, a rust removing part 23, a pipe 231, a tooth 2311, a fourth sleeve 24, a fifth sleeve 25, a bolt 3 and a nut 4.
Detailed Description
The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
A rust cleaning and dust removing device for a VES gas storage tank of a nuclear power plant comprises a plurality of hollow pipes 1 which are detachably connected end to end, and a rust cleaning and dust removing piece 2 which is detachably connected with the hollow pipes 1. After the hollow pipes 1 are connected end to form an integral structure, the head of the integral structure is connected with the rust removal and dust removal piece 2 and extends into the gas storage tank, and the tail of the integral structure is connected with a dust collection device so as to suck out dust and rust slag in the gas storage tank.
As shown in fig. 2, the hollow tube 1 comprises a main tube part 14, and a first sleeve 11 and a second sleeve 12 are respectively connected to two ends of the main tube part 14; two adjacent hollow pipes 1 are sleeved through a first sleeve 11 and a second sleeve 12; the sleeved first sleeve 11 and the sleeved second sleeve 12 are also locked through the bolt 3 and the nut 4.
The first sleeve 11 is used for being sleeved outside the second sleeve 12, and the second sleeve 12 is connected to one end, far away from the rust removing and dust removing piece 2, of the main pipe part 14. In this way, the direction in which the dust or the rust slag further escapes from the inner cavity of the hollow tube 1 through the gap between the first sleeve 11 and the second sleeve 12 is opposite to the direction in which the dust and the rust move under the action of the suction force of the dust suction device, so that the dust or the rust slag is prevented from further escaping through the gap between the first sleeve 11 and the second sleeve 12 under the action of inertia when the dust suction device works.
Further, one end of the main pipe portion 14, which is connected with the second sleeve 12, is further connected with a third sleeve 13, which is sleeved on the outer side of the first sleeve 11. Therefore, the sleeve joint strength between the adjacent hollow pipes 1 is improved.
As shown in fig. 3, the rust removing and dust removing member 2 comprises a main body part 21 provided with a rust removing channel 22, and a rust scraping part 23 connected to the main body part 21; the rust removing channel 22 is communicated with the inner cavity of the hollow tube 1, the rust scraping part 23 comprises a scraping tube 231 surrounding the outer side of the rust removing channel 22, and the scraping tube 231 comprises scraping teeth 2311 for reducing the contact area with the inner wall of the air storage tank so as to increase the pressure of rust scraping under the condition that external force is equal.
The rust removing and dust removing part 2 also comprises a sleeve IV 24 and a sleeve V25 which are connected with the main body part 21 and are respectively attached to the inner side wall and the outer side wall of the sleeve I11; the joint of the rust removal and dust removal piece 2 and the hollow pipe 1 is also locked by a bolt 3 and a nut 4. Therefore, the hollow pipe 1 for connecting the rust removing and dust removing piece 2 has the same structure with other hollow pipes 1, so that the production cost and the installation difficulty are reduced, and the problem that the rust removing and dust removing piece 2 is difficult to install as the hollow pipe 1 for connecting the rust removing and dust removing piece 2 is damaged or lost once the hollow pipe 1 for connecting the rust removing and dust removing piece 2 is different from the other hollow pipes 1 is solved.
Sealing rubber is arranged between the sleeved sleeve I11 and the sleeved sleeve II 12, between the sleeve I11 and the sleeve III 13, between the sleeve I11 and the sleeve IV 24 and between the sleeve I11 and the sleeve V25, so that the sleeving parts of the adjacent hollow pipes 1 and the sleeving parts of the rust removing and dust removing pieces 2 and the hollow pipes 1 are sealed, the inner pressure difference and the outer pressure difference can be formed when the dust suction device works in the hollow pipes 1, and dust and rust residues can be sucked out more quickly; the arrangement of the sealing rubber is also beneficial to avoiding the abrasion of the hollow pipe 1 or the rust removal and dust removal piece 2 at the sleeve joint.
Preferably, the sealing rubber is adhered to the outer side wall of the second sleeve 12, the inner side wall of the third sleeve 13, the outer side wall of the fourth sleeve 24 and the inner side wall of the fifth sleeve 25. Therefore, the problem that the sealing rubber is arranged on the surface of the exposed first sleeve 11 and is easily abraded is avoided.
The embodiments of the invention described above and shown in the drawings are intended as examples only and do not limit the invention. Those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the present disclosure, and such modifications or substitutions are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The purpose of the utility model is completely and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.
Claims (9)
1. A rust removal and dust removal device for a VES gas storage tank of a nuclear power plant is characterized by comprising a plurality of hollow pipes (1) which are detachably connected end to end, and also comprising rust removal and dust removal pieces (2) which are detachably connected with the hollow pipes (1); the rust removing and dust removing piece (2) comprises a main body part (21) provided with a rust removing channel (22) and a rust scraping part (23) connected to the main body part (21); the rust removing channel (22) is communicated with the inner cavity of the hollow pipe (1).
2. The rust removing and removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 1, wherein the rust scraping part (23) comprises a scraping pipe (231) which is arranged around the outer side of the rust removing passage (22).
3. The rust and dust removing device for a nuclear power plant VES gas storage tank as claimed in claim 2, wherein said scraper tube (231) includes scraper teeth (2311).
4. The rust and dust removing device for the VES gas storage tank of the nuclear power plant is characterized in that the hollow pipe (1) comprises a main pipe part (14), and a first sleeve pipe (11) and a second sleeve pipe (12) are respectively connected to two ends of the main pipe part (14); two adjacent hollow pipes (1) are sleeved through a first sleeve (11) and a second sleeve (12); the sleeved sleeve I (11) and the sleeved sleeve II (12) are locked through a bolt (3) and a nut (4).
5. The rust and dust removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 4, wherein the first sleeve pipe (11) is used for being sleeved outside the second sleeve pipe (12), and the second sleeve pipe (12) is connected to one end, far away from the rust and dust removing piece (2), of the main pipe part (14).
6. The rust and dust removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 5, wherein one end of the main pipe part (14) connected with the second sleeve pipe (12) is further connected with a third sleeve pipe (13) for being sleeved outside the first sleeve pipe (11).
7. The rust and dust removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 6, characterized in that the rust and dust removing member (2) further comprises a sleeve four (24) and a sleeve five (25) connected to the main body part (21) and respectively attached to the inner side wall and the outer side wall of the sleeve one (11); the joint of the rust removal and dust removal piece (2) and the hollow pipe (1) is also locked by a bolt (3) and a nut (4).
8. The rust and dust removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 7, further comprising sealing rubber; the sealing rubber is arranged between the sleeved sleeve I (11) and the sleeved sleeve II (12), between the sleeve I (11) and the sleeve III (13), between the sleeve I (11) and the sleeve IV (24) and between the sleeve I (11) and the sleeve V (25).
9. The rust and dust removing device for the VES gas storage tank of the nuclear power plant as claimed in claim 8, wherein the sealing rubber is adhered to the outer side wall of the second sleeve (12), the inner side wall of the third sleeve (13), the outer side wall of the fourth sleeve (24) and the inner side wall of the fifth sleeve (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222505318.8U CN218223907U (en) | 2022-09-22 | 2022-09-22 | A rust cleaning dust collector for nuclear power plant VES gas holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222505318.8U CN218223907U (en) | 2022-09-22 | 2022-09-22 | A rust cleaning dust collector for nuclear power plant VES gas holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218223907U true CN218223907U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222505318.8U Active CN218223907U (en) | 2022-09-22 | 2022-09-22 | A rust cleaning dust collector for nuclear power plant VES gas holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218223907U (en) |
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2022
- 2022-09-22 CN CN202222505318.8U patent/CN218223907U/en active Active
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