CN216519812U - Protective cover of discharge pipeline and steam discharge system of nuclear power station - Google Patents
Protective cover of discharge pipeline and steam discharge system of nuclear power station Download PDFInfo
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- CN216519812U CN216519812U CN202123041477.9U CN202123041477U CN216519812U CN 216519812 U CN216519812 U CN 216519812U CN 202123041477 U CN202123041477 U CN 202123041477U CN 216519812 U CN216519812 U CN 216519812U
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- baffle
- protective cover
- discharge
- steam
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The utility model discloses a protective cover for a discharge pipeline and a steam discharge system of a nuclear power station comprising the protective cover, wherein the protective cover comprises a connecting assembly and a cover body assembly, the connecting assembly comprises a fixing ring and a breakable connecting column, the cover body assembly comprises a cylinder body and a baffle plate unit, the fixing ring is used for being fixed on the output end of the discharge pipeline, the breakable connecting column is used for connecting the fixing ring and the bottom of the cylinder body, and the baffle plate unit is arranged at the top of the cylinder body and used for covering a top opening of the cylinder body. The output that the safety cover can the closing cap discharge line effectively prevents that the foreign matter from discharging inside the pipeline.
Description
Technical Field
The present invention relates to a protective cover for a discharge duct and a steam discharge system of a nuclear power plant including the same.
Background
The main steam safety valve is used for preventing overpressure of a steam generator and a main steam pipeline in a reactor factory building in a nuclear power plant, when the pressure in the steam generator and the main steam pipeline exceeds the opening fixed value of the main steam safety valve, the main steam safety valve is opened, and steam is discharged into the ambient atmosphere through the main steam safety valve and a safety valve outlet discharge pipeline.
Main steam relief valve generally arranges in the superiors' room of the auxiliary factory building around the reactor factory building, and relief valve export discharge line one end and main steam relief valve exit linkage, the other end is vertical upwards extend to outside the factory building, with natural environment UNICOM, and the port of the one end of present discharge line and external natural environment intercommunication does not carry out other safeguard measure, has following not enoughly:
1. rainwater or snow can enter through the output end of the discharge pipeline, if drainage is not smooth, rainwater can be in contact with the valve clack of the safety valve, and the valve clack of the safety valve is easy to rust, so that the safety valve is damaged;
2. the birds may enter the output end of the discharge pipeline by mistake or nest at the output end of the discharge pipeline, so that the discharge pipeline of the safety valve is blocked;
3. there is a risk of other foreign objects entering the discharge duct.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a protective cover for a discharge pipe and a steam discharge system of a nuclear power plant including the protective cover, which can cover an output end of the discharge pipe to prevent foreign materials from entering the discharge pipe.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model provides a safety cover for discharging tube, includes coupling assembling and cover body subassembly, coupling assembling is including solid fixed ring and breakable connector strut, cover body subassembly includes barrel and baffle unit, gu fixed ring is used for fixing on discharging tube's output, breakable connector strut is used for connecting gu fixed ring with the bottom of barrel, the baffle unit is installed at the top of barrel, is used for coveing the top of barrel is uncovered.
Preferably, but the broken connecting post adopts many, many the circumference evenly distributed of broken connecting post along the barrel.
Preferably, the strength of the breakable connecting column is set as follows: when the acting force of the exhaust gas in the exhaust pipeline on the protective cover is equal to or greater than the sum of the tensile strengths of the connecting columns, the connecting columns can be simultaneously broken.
Preferably, the baffle unit includes baffle axle and baffle, the baffle axle passes the top center of barrel, and its both ends are fixed respectively on the barrel, the baffle adopts two, two baffles along baffle axial symmetry distributes, and the stiff end of two baffles is all established baffle epaxial, and its free end can be along with the increase/reduction of gas pressure in the discharge duct, and round the baffle axle is rotatory to open or the closing cap the top of barrel.
Preferably, the baffle unit further comprises a weight block fixedly mounted on a free end of the baffle.
Preferably, the diameter of the fixing ring is the same as the diameter of the discharge pipe.
Preferably, the connecting column is cylindrical in cross section.
Preferably, the breakable connecting column is made of carbon steel.
The utility model also provides a steam discharge system of the nuclear power station, which comprises a steam generator, a discharge pipeline and the protective cover for the discharge pipeline, wherein the output end of the steam generator is communicated with the discharge pipeline and used for forming steam, the discharge pipeline is used for discharging steam, and the protective cover is arranged at the output end of the discharge pipeline.
The protective cover is fixedly connected with the output end of the discharge pipeline, the output end of the discharge pipeline can be effectively covered, foreign matters are prevented from being discharged into the pipeline, the protective cover is provided with the breakable connecting column, and when the pressure in the discharge pipeline is greater than the tensile strength of the breakable connecting column, the breakable connecting column is broken, so that the safety of the discharge pipeline is ensured.
Drawings
Fig. 1 is a schematic structural view of a protective cover for a discharge duct in embodiment 1 of the present invention.
In the figure: 1-discharge pipeline, 2-cylinder, 3-baffle, 4-counterweight, 5-baffle shaft, 6-breakable connecting column and 7-fixing ring.
Detailed Description
The technical solutions in 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 only some embodiments, 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 scope of the present invention.
In the description of the present invention, it should be noted that the indication of orientation or positional relationship, such as "on" or the like, is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must be provided with a specific orientation, constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, e.g., as being fixedly or removably connected, or integrally connected; either directly or indirectly through intervening media, or 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.
The utility model provides a protective cover for a discharge pipeline, which comprises a connecting assembly and a cover body assembly, wherein the connecting assembly comprises a fixing ring and a breakable connecting column, the cover body assembly comprises a cylinder body and a baffle plate unit, the fixing ring is used for being fixed on the output end of the discharge pipeline, the breakable connecting column is used for connecting the fixing ring and the bottom of the cylinder body, and the baffle plate unit is arranged at the top of the cylinder body and used for covering the top opening of the cylinder body.
The utility model also provides a steam discharge system of the nuclear power station, which comprises a steam generator, a discharge pipeline and the protective cover for the discharge pipeline, wherein the output end of the steam generator is communicated with the discharge pipeline and used for forming steam, the discharge pipeline is used for discharging steam, and the protective cover is arranged at the output end of the discharge pipeline.
Example 1
As shown in fig. 1, the present embodiment discloses a protective cover for a discharge pipeline, which includes a connecting assembly and a cover assembly, the connecting assembly includes a fixing ring 7 and a breakable connecting post 6, the cover assembly includes a barrel 2 and a baffle unit, in the present embodiment, the barrel 2 is a cylinder, the diameter of the barrel is the same as that of the discharge pipeline 1, the material of the barrel is carbon steel, the fixing ring 7 is fixedly installed on the output end of the discharge pipeline 1, the breakable connecting post 6 is used for connecting the fixing ring 7 and the bottom of the barrel 2, and the baffle unit is installed on the top of the barrel 2 and is used for covering the top opening of the barrel 2.
In this embodiment, the breakable connecting columns 6 are provided in plural numbers, and the plural breakable connecting columns 6 are uniformly distributed along the circumferential direction of the cylinder 2, specifically, the breakable connecting columns 6 are provided with 50 in total, and the 50 breakable connecting columns 6 are uniformly distributed at intervals along the circumferential direction of the cylinder 2/the fixing ring 7, so that a gap communicating with the outside is formed between the two adjacent breakable connecting columns 6.
Further, the strength of the breakable connection post 6 is set to: when the acting force of the exhaust gas in the exhaust duct 1 on the protection cover is equal to or greater than the sum of the tensile strengths of the plurality of connection columns, the plurality of connection columns can be simultaneously broken. The setting of breakable connecting post 6 is in order to guarantee the safety of discharge line when baffle unit takes place unusually unable normal opening, the gaseous jam of emission in discharge line 1 is at discharge line 1's output, thereby cause the pressure increase of discharge line 1's output, in order to guarantee discharge line 1's safety, when pressure in discharge line 1 reachs the pressure threshold value of settlement, many breakable connecting posts 6 fracture simultaneously, the safety cover separates with discharge line 1's output, thereby make the gas of jam in discharge line 1 discharge smoothly.
Specifically, the maximum pressure that can be borne by the breakable connecting column 6 is related to the material, the shape of the cross section, and the area of the cross section, and in practical applications, the sum of the tensile strengths of the breakable connecting columns 6 can be calculated according to the maximum pressure value that can be borne by the discharge pipe 1, so as to select the appropriate shape and area of the cross section of the breakable connecting column, in this embodiment, the material of the breakable connecting column 6 is carbon steel, and the shape of the cross section is circular.
In this embodiment, the baffle unit includes baffle axle 5 and baffle 3, baffle axle 5 is long and thin cylindrical column body, baffle axle 5 passes the top center of barrel 2, and its both ends are fixed respectively on barrel 2, baffle 3 adopts two of the same size, two baffles 3's shape is semi-circular, its sharp end is the stiff end, its circular arc end is the free end, be equipped with the axle sleeve on the sharp end, the axle sleeve of two baffles 3 overlaps in proper order on baffle axle 5, two baffles 3 along baffle axle 5 symmetric distribution, its free end can be along with the increase/reduction of gas pressure in the discharge line 1, and round baffle axle 5 is rotatory, in order to open or the top of closing cap barrel 2.
Optionally, the baffle unit further includes a counterweight 4, the counterweight 4 is fixedly mounted on the free end of the baffle 3, and the counterweight 4 is used for closing the free end of the baffle 3 under the action of gravity after the gas in the discharge pipeline 1 is discharged.
Alternatively, the diameter of the fixing ring 7 is the same as the diameter of the discharge pipe 1, and its diameter is 250 mm.
The safety cover in this embodiment simple structure can install the output at discharge line 1 fast conveniently to for discharge line 1 provides and covers, prevent that the foreign matter from getting into discharge line 1 inside, reduce its maintenance number of times, increased discharge line 1's life effectively.
Example 2
The embodiment discloses a steam discharging system of a nuclear power station, which comprises a steam generator, a discharging pipeline 1 and a protective cover in the embodiment 1, wherein the output end of the steam generator is communicated with the discharging pipeline 1 and used for forming steam, the discharging pipeline 1 is used for discharging steam, and the protective cover is arranged on the output end of the discharging pipeline 1.
In this embodiment, a safety valve is further disposed between the output end of the steam generator and the discharge pipe 1, and when the steam pressure inside the steam generator reaches its opening pressure, the safety valve is opened to allow the steam to flow through the discharge pipe 1 and be discharged through the protective cover.
The operation of the steam discharge system of the nuclear power plant in this embodiment is as follows:
after the steam pressure inside the steam generator reaches a discharge threshold, the safety valve is opened to discharge the steam along the discharge pipeline 1;
when the steam in the discharge pipeline 1 reaches the output end of the discharge pipeline 1, a baffle plate 3 covering the output end of the discharge pipeline 1 is opened under the pressure of the steam, and the steam is discharged to the atmosphere;
when the steam in the discharge pipeline 1 is discharged, the baffle 3 falls under the action of the gravity of the balancing weight 4 to cover the output end of the discharge pipeline 1;
when the baffle 3 cannot be opened due to an abnormal fault, the steam in the discharge pipeline 1 blocks the output end of the discharge pipeline 1, the plurality of breakable connecting columns 6 are simultaneously broken along with the increase of the pressure until the acting force of the steam pressure reaches the tensile strength of the plurality of breakable connecting columns 6, and the protective cover is separated from the discharge pipeline 1, so that the blocked steam can be smoothly discharged;
after the breakable connecting column breaks, it is reconnected to the output of the discharge pipe 1 by replacing the protective cap with a new one.
The steam discharge system of the nuclear power station in the embodiment can realize automatic steam discharge, and the baffle 3 is arranged at the output end of the discharge pipeline 1, so that foreign matters can be effectively prevented from entering the discharge pipeline 1 to cause blockage of the discharge pipeline 1, and the safety of the discharge pipeline 1 can be ensured by the breakable connecting column 6.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (9)
1. A protective cover for a discharge conduit, comprising a connection assembly and a cover assembly,
the connecting assembly comprises a fixing ring (7) and a breakable connecting post (6), the cover body assembly comprises a cylinder body (2) and a baffle plate unit,
the utility model discloses a solid waste water treatment device, including solid waste water treatment device, but solid waste water treatment device, gu fixed ring (7) are used for fixing on the output of discharge pipeline (1), breakable connecting post (6) are used for connecting gu fixed ring (7) with the bottom of barrel (2), the baffle unit is installed at the top of barrel (2), is used for hiding the top of barrel (2) is uncovered.
2. The protective cover for a drain pipe according to claim 1, characterized in that a plurality of the breakable connection posts (6) are used, and a plurality of the breakable connection posts (6) are uniformly distributed along the circumferential direction of the barrel (2).
3. A protective cover for a drain pipe according to claim 2, characterized in that the strength of the breakable connection post (6) is set to: when the acting force of the exhaust gas in the exhaust pipeline (1) on the protective cover is equal to or more than the sum of the tensile strengths of the connecting columns, the connecting columns can be simultaneously broken.
4. Protective shield for a discharge conduit according to claim 1, wherein the baffle unit comprises a baffle shaft (5) and a baffle (3),
the baffle shaft (5) penetrates through the center of the top of the cylinder body (2), and two ends of the baffle shaft are respectively fixed on the cylinder body (2),
baffle (3) adopt two, two baffle (3) along baffle axle (5) symmetric distribution, the stiff end of two baffles (3) is all established on baffle axle (5), its free end can be along with the increase/reduction of gas pressure in discharge pipe (1), and round baffle axle (5) are rotatory to open or the closing cap the top of barrel (2).
5. A protective cover for a discharge conduit according to claim 4, wherein the baffle unit further comprises a counterweight (4), the counterweight (4) being fixedly mounted on a free end of the baffle (3).
6. Protective cover for a discharge conduit according to claim 1, characterized in that the diameter of the securing ring (7) is of the same size as the diameter of the discharge conduit (1).
7. A protective cover for a discharge conduit according to any one of claims 1 to 6, wherein the connecting column is cylindrical in cross-section.
8. A protective cover for a discharge conduit according to any one of claims 1 to 6, wherein the breakable connection post (6) is made of carbon steel.
9. A steam-emitting system of a nuclear power plant, characterized by comprising a steam generator, an emission duct (1), and a protective cover for the emission duct according to any one of claims 1 to 8,
the output end of the steam generator is communicated with the discharge pipeline (1) and is used for forming steam,
the discharge conduit (1) is used for discharging steam,
the protective cover is arranged on the output end of the discharge pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041477.9U CN216519812U (en) | 2021-12-03 | 2021-12-03 | Protective cover of discharge pipeline and steam discharge system of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041477.9U CN216519812U (en) | 2021-12-03 | 2021-12-03 | Protective cover of discharge pipeline and steam discharge system of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519812U true CN216519812U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123041477.9U Active CN216519812U (en) | 2021-12-03 | 2021-12-03 | Protective cover of discharge pipeline and steam discharge system of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519812U (en) |
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2021
- 2021-12-03 CN CN202123041477.9U patent/CN216519812U/en active Active
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