CN214075267U

CN214075267U - Pretreatment device for monitoring water quality of nuclear power station discharge port

Info

Publication number: CN214075267U
Application number: CN202022731663.4U
Authority: CN
Inventors: 胡澄; 张启明; 孙雪峰; 钱光磊; 姚建林; 彭凯
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Suzhou Nuclear Power Research Institute Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Suzhou Nuclear Power Research Institute Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-31
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a pretreatment device for monitoring water quality of a nuclear power station discharge port, which comprises a box body, a water inlet mechanism arranged on the upper part of the box body, a water outlet mechanism arranged on the lower part of the box body, a filter plate arranged in the box body, a lifting mechanism used for driving the lifting of the filter plate, and a scraping mechanism used for scraping off impurities intercepted on the filter plate, wherein the filter plate is positioned between the water inlet mechanism and the water outlet mechanism, the lifting mechanism comprises a motor, a rotating shaft corresponding to the setting of the output end of the motor, and a first lead screw connected between the output end of the motor and the rotating shaft, the rotating shaft is arranged at the bottom of the box body, and the filter plate is in threaded connection with the first lead screw; the scraping mechanism comprises a threaded sleeve, a support plate, a scraper and a first driving mechanism, wherein the threaded sleeve is sleeved outside the screw rod, the support plate is connected to the threaded sleeve, the scraper is attached to the surface of the filter plate, the first driving mechanism is used for driving the scraper to move, and the first driving mechanism is arranged between the support plate and the scraper.

Description

Pretreatment device for monitoring water quality of nuclear power station discharge port

Technical Field

The utility model relates to a nuclear power station water quality monitoring field, in particular to a preprocessing device for nuclear power station discharge port water quality monitoring.

Background

Nuclear power plant refers to a facility for converting nuclear energy into electrical energy by means of suitable devices, the nuclear power plant replaces the boiler of a thermal power plant with a nuclear reactor, generates heat by the special form of "burning" of nuclear fuel in the nuclear reactor, and converts the nuclear energy into thermal energy to heat water and generate steam, and the system and equipment of the nuclear power plant are generally composed of two major parts: nuclear systems and devices, also known as nuclear islands; conventional systems and devices, also known as conventional islands.

A large amount of used seawater can be generated in the cooling link of the nuclear power station, and the used seawater needs to be monitored for relevant water quality parameters, so that pollution is avoided. The turbidity of seawater and some inert organic matters can influence the water quality measurement, and the water quality monitoring is carried out after pretreatment. Therefore, there is a need for an apparatus that can rapidly pretreat used seawater.

Disclosure of Invention

In view of this, in order to achieve the above object, the present invention provides a pretreatment device for monitoring water quality at a nuclear power station discharge port, which can pretreat used seawater and can quickly scrape off substances such as trapped impurities.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pretreatment device for monitoring the water quality of a nuclear power station discharge port comprises a box body, a water inlet mechanism arranged at the upper part of the box body, a water outlet mechanism arranged at the lower part of the box body, a filter plate arranged in the box body, a lifting mechanism used for driving the filter plate to lift, and a scraping mechanism used for scraping impurities trapped on the filter plate, wherein the filter plate is positioned between the water inlet mechanism and the water outlet mechanism; the scraping mechanism comprises a threaded sleeve, a support plate, a scraper and a first driving mechanism, wherein the threaded sleeve is sleeved outside the screw rod, the support plate is connected to the threaded sleeve, the scraper is attached to the surface of the filter plate, the first driving mechanism is used for driving the scraper to move, and the first driving mechanism is arranged between the support plate and the scraper.

According to some preferred implementation aspects of the utility model, first actuating mechanism includes connecting plate, drive second lead screw that the connecting plate removed, be used for right the removal of connecting plate carries out spacing slide bar, sets up first gear between backup pad and the connecting plate and fixes first rack on the box inner wall, first gear and first rack mesh mutually close, first gear cover is established be used for driving outside the second lead screw rotates, the one end of slide bar is run through the connecting plate and is fixed in the backup pad.

According to some preferred implementation aspects of the utility model, the connecting plate with be provided with first elastic component between the scraper blade, the one end of first elastic component acts on the lower surface of connecting plate, the other end of first elastic component acts on the upper surface of scraper blade, first elastic component is used for ordering about the scraper blade with the upper surface laminating of filter plate.

According to some preferred implementation aspects of the utility model, the spacing groove has been seted up on the connecting plate, be provided with the stopper on the thread bush, the stopper insert to in the spacing groove.

According to some preferred implementation aspects of the utility model, the both sides of filter plate are provided with the movable block, seted up on the inner wall of box with movable block complex shifting chute, the movable block holds be used for right in the shifting chute the removal of filter plate is led.

According to some preferred implementation aspects of the utility model, including being used for collecting the collection mechanism of impurity on the filter plate, collection mechanism is including seting up the box is kept away from the collection mouth of elevating system one side, correspond collect the collection box that mouthful set up, be located collect the compression box of box below and be used for carrying out extruded compression subassembly to the impurity in the compression box, it is in to collect box and compression box setting the outside of box, it link up to collect mouthful, collection box and compression box.

According to some preferred implementation aspects of the utility model, the compression subassembly is including setting up briquetting, setting on the compression box are in support frame, running through on the box outer wall the transfer line of support frame, fixing driving plate and the drive of transfer line upper end the eccentric wheel of driving plate motion, the lower extreme of transfer line with briquetting fixed connection, be provided with the dog on the support frame, the transfer line runs through the dog, the dog with be provided with the second elastic component between the driving plate.

According to some preferred implementation aspects of the utility model, the box corresponds be provided with second rack and second gear on the inner wall of eccentric wheel, the second gear with be connected with the connecting axle between the eccentric wheel, the connecting axle runs through the wall of box, second gear and second rack each other bite and close.

According to some preferred implementation aspects of the utility model, be provided with the sliding tray on the box, be connected with the sliding block on the second rack, the sliding block is used for sliding in the sliding tray.

According to some preferred embodiments of the present invention, the top of the box body is provided with a box door, and the side portion of the compression box is provided with a box door.

Owing to adopted above technical scheme, compare in prior art, the utility model discloses an useful part lies in: the utility model discloses a preprocessing device for nuclear power station discharge port water quality monitoring through setting up elevating system and striking off the mechanism, can drive the filter plate and remove in, the drive scraper blade strikes off impurity etc. on the filter plate, has realized the purpose to the quick preliminary treatment of the sea water after the use and strike off impurity fast, can improve the efficiency to the organic matter processing in the sea water, and can practice thrift the cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of a pretreatment device according to an embodiment of the present invention;

FIG. 2 is an internal structure diagram of a pretreatment apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lifting mechanism and a scraping mechanism in an embodiment of the present invention;

fig. 4 is a cross-sectional view of a pretreatment device according to an embodiment of the present invention;

fig. 5 is a perspective view of another perspective view of the pretreatment device according to an embodiment of the present invention;

wherein: 1. a box body; 101. a branch pipe; 102. a water inlet pipe; 103. a valve; 104. a water outlet pipe; 2. a box door; 3. compressing the box; 4. a box door; 5. a collection box; 6. a motor; 7. a rotating shaft; 8. a first lead screw; 9. filtering the plate; 10. a moving block; 11. a threaded sleeve; 12. a support plate; 13. a second lead screw; 14. a first gear; 15. a slide bar; 16. a connecting plate; 17. a first elastic member; 18. a squeegee; 19. a limiting block; 20. a first rack; 21. a connecting shaft; 22. a second gear; 23. an eccentric wheel; 24. a second rack; 25. a collection port; 26. a slider; 27. a support frame; 28. a second elastic member; 29. a drive plate; 30. a transmission rod; 31. and (7) briquetting.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1-5, the pretreatment device for monitoring water quality at a nuclear power plant discharge port of the present embodiment includes a tank 1, a water inlet mechanism disposed at an upper portion of the tank 1, a water outlet mechanism disposed at a lower portion of the tank 1, a filter plate 9 disposed in the tank 1, a lifting mechanism for driving the filter plate 9 to lift, a scraping mechanism for scraping off impurities and the like trapped on the filter plate 9, and a collecting mechanism for collecting impurities on the filter plate 9, wherein the filter plate 9 is located between the water inlet mechanism and the water outlet mechanism.

The mechanism of intaking includes valve and inlet tube, and the mechanism of going out water includes the outlet pipe, and is concrete, two branch pipes 101 of lateral wall upper portion fixedly connected with of box 1 in this embodiment, the one end fixedly connected with inlet tube 102 of branch pipe 101, and the lateral wall fixed mounting of inlet tube 102 has valve 103, and the lateral wall lower part fixedly connected with outlet pipe 104 of box 1, outlet pipe 104 are located filter plate 9 below, are convenient for carry the sewage after the preliminary treatment.

The lifting mechanism comprises a motor 6, a rotating shaft 7 and a first screw rod 8, the rotating shaft 7 corresponds to the output end of the motor 6, the first screw rod 8 is connected between the output end of the motor 6 and the rotating shaft 7, an output shaft of the motor 6 penetrates through the upper surface of the box body 1 and extends into the box body, the rotating shaft 7 is arranged at the bottom of the box body 1, and a filter plate 9 is in threaded connection with the first screw rod 8. The two sides of the filter plate 9 are provided with moving blocks 10, the inner wall of the box body 1 is provided with moving grooves matched with the moving blocks 10, and the moving blocks 10 are accommodated in the moving grooves and used for guiding the movement of the filter plate 9.

The scraping mechanism comprises a threaded sleeve 11 sleeved outside the first screw rod 8, a supporting plate 12 connected to the threaded sleeve 11, a scraper 18 attached to the surface of the filter plate 9, and a first driving mechanism used for driving the scraper 18 to move, and the first driving mechanism is arranged between the supporting plate 12 and the scraper 18.

The first driving mechanism in this embodiment includes a connecting plate 16, a second lead screw 13 for driving the connecting plate 16 to move, a sliding rod 15 for limiting the movement of the connecting plate 16, a first gear 14 disposed between the supporting plate 12 and the connecting plate 16, and a first rack 20 fixed on the inner wall of the box body 1, wherein the first gear 14 is meshed with the first rack 20, the first gear 14 is sleeved outside the second lead screw 13 for driving the second lead screw 13 to rotate, the second lead screw 13 is in threaded connection with the connecting plate 16, the second lead screw 13 rotates to drive the connecting plate 16 to move, and one end of the sliding rod 15 penetrates through the connecting plate 16 and is fixed on the supporting plate 12. A limiting groove is formed in the connecting plate 16, a limiting block 19 is arranged on the threaded sleeve 11, and the limiting block 19 is inserted into the limiting groove, so that the moving stability of the scraper 18 is improved.

A first elastic member 17 is arranged between the connecting plate 16 and the scraper 18, one end of the first elastic member 17 acts on the lower surface of the connecting plate 16, the other end of the first elastic member 17 acts on the upper surface of the scraper 18, and the first elastic member 17 is used for driving the scraper 18 to be attached to the upper surface of the filter plate 9. The first elastic member 17 in this embodiment is a spring. Through the structure, the cleaning of the materials on the filter plate 9 can be facilitated, and time and labor are saved.

The collecting mechanism comprises a collecting port 25 arranged on one side of the box body 1 far away from the lifting mechanism, a collecting box 5 corresponding to the collecting port 25, a compression box 3 positioned below the collecting box 5 and a compression assembly used for compressing impurities in the compression box 3, the collecting box 5 and the compression box 3 are arranged outside the box body 1, the collecting port 25, the collecting box 5 and the compression box 3 are communicated, and the impurities on the filter plate 9 are collected into the compression box 3 through the collecting port 25 and the collecting box 5 by the scraper 18.

The compression assembly comprises a pressing block 31 arranged on the compression box 3, a support frame 27 arranged on the outer wall of the box body 1, a transmission rod 30 penetrating through the support frame 27, a transmission plate 29 fixed at the upper end of the transmission rod 30 and an eccentric wheel 23 driving the transmission plate 29 to move, the lower end of the transmission rod 30 is fixedly connected with the pressing block 31, a stop block is arranged on the support frame 27, the transmission rod 30 penetrates through the stop block, a second elastic part 28 is arranged between the stop block and the transmission plate 29, and the second elastic part 28 is a spring in the embodiment.

The inner wall of the box body 1 corresponding to the eccentric wheel 23 is provided with a second rack 24 and a second gear 22, a connecting shaft 21 is connected between the second gear 22 and the eccentric wheel 23, the connecting shaft 21 penetrates through the wall of the box body 1, and the second gear 22 and the second rack 24 are mutually meshed. The box body 1 is provided with a sliding groove, the second rack 24 is connected with a sliding block 26, and the sliding block 26 is used for sliding in the sliding groove and can limit the lower limit position of the second rack 24. Through the arrangement, the connecting plate 16 contacts the second rack 24 and drives the second rack 24 to move upwards to drive the second gear 22 to rotate, the eccentric wheel 23 rotates to drive the transmission plate 29 to move downwards, the transmission rod 30 and the pressing block 31 both move downwards to extrude impurities in the compression box 3, and the extruded impurities are convenient for workers to subsequently process.

The upper surface of box 1 and the lateral wall of compression box 3 articulate through the hinge respectively has chamber door 2 and box door 4, and a plurality of resins that are used for absorbing impurity and radioactive substance are placed on the upper portion of filter plate 9, and the resin after the saturation passes through scraper blade 18 clearance after, can open chamber door 2, adds new resin.

The first lead screw 8 and the second lead screw 13 in the embodiment are both reciprocating lead screws, and the slide block and the like can realize reciprocating motion under the condition that the rotation direction of the main shaft is not changed.

The working process of the pretreatment device for monitoring the water quality at the discharge port of the nuclear power plant of the embodiment is briefly described as follows:

the working personnel check the device firstly, then connect the water inlet pipe 102 with the water outlet of the nuclear power station, open the valve 103, the sewage enters the box body 1 through the branch pipe 101, the sewage falls into the lower part of the box body 1 through the filter plate 9, the filter plate 9 can filter the impurities of the sewage, the resin on the filter plate 9 absorbs the radioactive substances in the sewage of the nuclear power station, when the impurities on the filter plate 9 are excessive or after the resin is saturated, close the valve 103, the motor 6 is started to drive the first screw rod 8 on the rotating shaft 7 to rotate, so that the filter plate 9 and the support plate 12 on the thread sleeve 11 are lifted simultaneously, the first gear 14 moves on the first rack 20, then the second screw rod 13 rotates, so that the connecting plate 16 moves on the second screw rod 13 and the slide rod 15, the connecting plate 16 makes the scraper 18 always attached to the filter plate 9 through the first elastic piece 17, impurities and resin on the filter plate 9 are pushed out through the collecting port 25 by the scraper 18 and then fall into the compression box 3 through the collecting box 5, the first screw rod 8 continues to rotate, the first gear 14 on the second screw rod 13 is separated from the first rack 20, when the first gear 14 is not meshed any more, the second screw rod 13 stops rotating, the connecting plate 16 is in a static state, the motor 6 continues to rotate, the connecting plate 16 is driven to ascend, the first gear 14 is driven to ascend, the second gear 22 rotates, then the eccentric wheel 23 on the connecting shaft 21 rotates, the driving plate 29 is driven to be extruded by the eccentric wheel 23, and the pressing block 31 on the driving rod 30 descends to press the impurities and the resin in the compression box 3 into blocks. And then the first screw rod 8 is continuously rotated through the motor 6, so that the filter plate 9 and the thread bush 11 are descended to reset, and new resin is put into the box door 2, so that the sewage treatment can be continuously carried out. At the same time, the driving plate 29, the driving rod 30 and the pressing piece 31 are also restored by the second elastic member 28.

Compared with the prior art, the utility model discloses following beneficial effect has: the motor is started to drive the first screw rod on the rotating shaft to rotate, so that the filter plate and the support plate on the threaded sleeve simultaneously ascend, the first gear rotates under the cooperation of the first rack, the second screw rod rotates, the connecting plate moves on the second screw rod and the slide rod, the scraper plate enables the scraper plate to be always attached to the filter plate through the first elastic piece, impurities and resin on the filter plate are pushed out through the collection port through the scraper plate and then fall into the compression box through the collection box, the filter plate is convenient to clean, the filter plate can be prevented from being blocked, and the treatment effect of seawater organic matters is favorably improved; when the first screw rod continues to rotate, the first gear on the second screw rod is separated from the first rack, so that the first screw rod is not meshed any more, the second screw rod stops rotating, the connecting plate is in a static state, the connecting plate rises to push the second rack to rise, the second gear rotates, then the eccentric wheel on the connecting shaft rotates to extrude the transmission plate, and the pressing block on the transmission rod descends, so that impurities and resin in the compression box can be pressed into blocks, the processing is convenient for workers to process at the time, and the cost is saved by using a single motor; the device can be used for treating water in sequence, the efficiency of treating organic matters in seawater can be improved, and the cost can be saved.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A pretreatment device for monitoring the water quality of a nuclear power station discharge port is characterized by comprising a box body, a water inlet mechanism arranged at the upper part of the box body, a water outlet mechanism arranged at the lower part of the box body, a filter plate arranged in the box body, a lifting mechanism used for driving the filter plate to lift and a scraping mechanism used for scraping impurities intercepted on the filter plate, wherein the filter plate is positioned between the water inlet mechanism and the water outlet mechanism; the scraping mechanism comprises a threaded sleeve, a support plate, a scraper and a first driving mechanism, wherein the threaded sleeve is sleeved outside the screw rod, the support plate is connected to the threaded sleeve, the scraper is attached to the surface of the filter plate, the first driving mechanism is used for driving the scraper to move, and the first driving mechanism is arranged between the support plate and the scraper.

2. The pretreatment device according to claim 1, wherein the first driving mechanism comprises a connecting plate, a second lead screw for driving the connecting plate to move, a sliding rod for limiting the movement of the connecting plate, a first gear arranged between the supporting plate and the connecting plate, and a first rack fixed on the inner wall of the box body, the first gear is engaged with the first rack, the first gear is sleeved outside the second lead screw and used for driving the second lead screw to rotate, and one end of the sliding rod penetrates through the connecting plate and is fixed on the supporting plate.

3. The pretreatment device according to claim 2, wherein a first elastic member is disposed between the connecting plate and the scraper, one end of the first elastic member acts on a lower surface of the connecting plate, the other end of the first elastic member acts on an upper surface of the scraper, and the first elastic member is used for driving the scraper to be attached to the upper surface of the filter plate.

4. The pretreatment device according to claim 2, wherein a limiting groove is formed in the connecting plate, a limiting block is arranged on the threaded sleeve, and the limiting block is inserted into the limiting groove.

5. The pretreatment device according to claim 1, wherein moving blocks are provided on both sides of the filter plate, a moving groove for engaging with the moving blocks is formed in an inner wall of the tank, and the moving blocks are accommodated in the moving groove for guiding movement of the filter plate.

6. The pretreatment device according to any one of claims 1 to 5, comprising a collecting mechanism for collecting impurities on the filter plate, wherein the collecting mechanism comprises a collecting port opened on a side of the tank body away from the lifting mechanism, a collecting box arranged corresponding to the collecting port, a compressing box positioned below the collecting box, and a compressing assembly for compressing the impurities in the compressing box, the collecting box and the compressing box are arranged outside the tank body, and the collecting port, the collecting box and the compressing box are communicated.

7. The pretreatment device according to claim 6, wherein the compression assembly comprises a pressing block arranged on the compression box, a support frame arranged on the outer wall of the box body, a transmission rod penetrating through the support frame, a transmission plate fixed at the upper end of the transmission rod and an eccentric wheel driving the transmission plate to move, the lower end of the transmission rod is fixedly connected with the pressing block, a stop block is arranged on the support frame, the transmission rod penetrates through the stop block, and a second elastic piece is arranged between the stop block and the transmission plate.

8. The pretreatment device according to claim 7, wherein a second rack and a second gear are arranged on the inner wall of the box body corresponding to the eccentric wheel, a connecting shaft is connected between the second gear and the eccentric wheel, the connecting shaft penetrates through the wall of the box body, and the second gear and the second rack are mutually meshed.

9. The pretreatment device of claim 8, wherein the housing has a sliding slot, and the second rack has a sliding block attached thereto for sliding within the sliding slot.

10. The pretreatment apparatus of claim 6, wherein a door is provided on a top of the tank, and a door is provided on a side of the compression box.