CN111599139A - Alarm device and monitoring method for monitoring marine organism quantity at water intake of nuclear power plant - Google Patents
Alarm device and monitoring method for monitoring marine organism quantity at water intake of nuclear power plant Download PDFInfo
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- CN111599139A CN111599139A CN202010471538.6A CN202010471538A CN111599139A CN 111599139 A CN111599139 A CN 111599139A CN 202010471538 A CN202010471538 A CN 202010471538A CN 111599139 A CN111599139 A CN 111599139A
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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Abstract
The invention belongs to the field of monitoring of cold source marine organisms of a nuclear power plant, and particularly relates to an alarm device and a monitoring method for monitoring the marine organism quantity at a water intake of the nuclear power plant, wherein the alarm device comprises the following steps: the device comprises a floating column, a cross shaft, a filter screen bracket, a plurality of filter screens, a plurality of alarm triggers, an alarm receiver and a moment limiter; the filter screen is arranged on the filter screen bracket, the filter screen bracket is arranged on the cross shaft through a bearing, and floating columns are fixed at two ends of the cross shaft; the alarm trigger is arranged on the filter screen support, and the alarm receiver and the moment limiter are respectively arranged on the transverse shaft.
Description
Technical Field
The invention belongs to the field of monitoring of cold source marine organisms of a nuclear power plant, and particularly relates to an alarm device and a monitoring method for monitoring the quantity of marine organisms at a water intake of the nuclear power plant.
Background
In order to discover the risk of the cold source in advance, each nuclear power plant implements cold source system monitoring improvement, adopts modes of installing an underwater high-definition camera, a multi-beam sonar system and the like to monitor marine organisms, but the high-definition camera is easily influenced by the transparency of a sea area water body, the effective monitoring distance in a sea area with large seawater sediment content is only 0.5-1 m, the multi-beam sonar system is influenced by the sea area marine organism type, and the capability of identifying small-size marine organisms is insufficient, for example, the minimum size which can be identified by a sonar device installed in a certain domestic power station is 2.54 cm.
Therefore, in view of the limitation that above-mentioned monitoring mode exists, need urgently to study and design an alarm device for monitoring water intaking open channel marine organism quantity of nuclear power plant, realize the reliable discernment to marine organism inrush, when taking place the marine region incident such as nuclear power plant water intaking mouth jam, can discover and respond reliably in time, reduce power plant unit cold source risk.
Disclosure of Invention
The invention aims to design an alarm device and a monitoring method for monitoring the quantity of marine organisms at a water intake of a nuclear power plant, which are used for solving the technical problem that the function of monitoring the marine organisms at the water intake of the nuclear power plant is reduced due to the fact that the existing monitoring modes such as an underwater high-definition camera, a multi-beam sonar system and the like are easily influenced by water transparency, the types of the marine organisms and the like.
The technical scheme of the invention is as follows:
an alarm device for monitoring marine organism quantity at a water intake of a nuclear power plant comprises: the device comprises a floating column, a cross shaft, a filter screen bracket, a plurality of filter screens, a plurality of alarm triggers, an alarm receiver and a moment limiter; the filter screen is arranged on the filter screen bracket, the filter screen bracket is arranged on the cross shaft through a bearing, and floating columns are fixed at two ends of the cross shaft; the alarm trigger is arranged on the filter screen support, and the alarm receiver and the moment limiter are respectively arranged on the transverse shaft.
A cross shaft height adjuster is arranged on the floating column to ensure that the distance between the cross shaft and the sea surface is adjustable; after the cross shaft height adjuster on the floating column is adjusted and fixed, the water inlet depth of the filter screen is always kept unchanged when the alarm device fluctuates along with the sea water tide level, the floating column can be fixed on the sea through the anchor or the upright column, and the filter screen is ensured to be vertical to the water flow direction.
The whole transverse shaft is of a rod-shaped structure; the number of the filter screens is four; the screen support includes: the device comprises four filter screen mesh supports, a plurality of stable circular rings and a plurality of cams; the filter screen mesh supports are arranged at intervals of 90 degrees in the circumferential direction of the stabilizing ring, and the filter screen is divided into four filter screen working positions in the circumferential direction; the four filter screen mesh supports are fixedly connected through a plurality of stable circular rings; the filter screen is detachably arranged on the filter screen mesh support, and the four cams are in a group and arranged on one stable circular ring and used for being matched with one or more moment limiters; the mounting position of the cam on each stable circular ring is matched with the position of the filter screen mesh support.
The torque limiter includes: the torque adjusting nut, the torque limiter sleeve, the torque limiter spring, the transmission rod and the roller; a torque limiter spring is installed in the torque limiter sleeve, and a torque adjusting nut is arranged at the top of the torque limiter sleeve and pressed at one end of the torque limiter spring; the other end of the moment limiter spring is provided with a transmission rod; a roller is arranged below the transmission rod; one end of the torque limiter, which is provided with a torque adjusting nut, is fixed on the cross shaft through a torque limiter sleeve, and a roller of the torque limiter is in contact with the cam; when the filter screen is dirty, the torque of the filter screen acting on the filter screen bracket is increased, so that the cam rotates along the axial direction and moves relative to the roller.
The number of the stable circular rings is 2-4, and the number of the torque limiters arranged on the cross shaft is matched with the area size of the filter screen.
Four filter screen operating position include: a filter screen working position, a filter screen decontamination position, a filter screen standby position and a filter screen secondary standby position; the working position of the filter screen is arranged below the water surface and is used for intercepting marine organisms; the decontamination position of the filter screen is flush with the seawater plane, so that the filter screen is cleaned; the standby filter screen position is suspended in the water inlet direction, and when the torque of the filter screen at the working position exceeds the limit value of the moment limiter, the standby filter screen position is shifted to the working position of the filter screen; the secondary standby position is simultaneously transferred to the filter screen standby position.
Every time the filter screen rotates 90 degrees, the alarm receiver receives a signal and sends the signal to the monitoring room, and the monitoring room judges the quantity of marine organisms according to the frequency of the signal.
The filter screen type is selected according to aquatic impurity such as local sea area sea creature, includes: a fish net structure, a plane plate hollow structure, a corrugated plate hollow structure, a wedge-shaped pore plate structure or a combination of a plurality of net sheet structures;
the water resistance can be changed by changing the area or the type of the filter screen in water areas with different seawater flow velocities; or the water-proof water retaining strip is arranged on the filter screen to increase and decrease the water resistance of the filter screen so as to ensure that the filter screen at the working position can be normally put into use.
The floating column is used for supporting the weight of the alarm device; the material of superficial post includes plastics or resistant sea water corrosion's metal, and the shape of superficial post includes ship type or tapered, and the shape of superficial post will guarantee that the filter screen is fixed steady in aqueous and can follow the sea water tide level fluctuation and fluctuate, and alarm device filter screen depth of entry remains unchanged all the time along with sea water tide level fluctuation promptly.
The monitoring method of the alarm device for monitoring the marine organism number at the water intake of the nuclear power plant comprises the following steps:
the method comprises the following steps: when the filter screen is installed and works in water, a certain water resistance exists on the filter screen under the action of water flow, the torque generated on the filter screen by the action of the water resistance is utilized, and the working position of the filter screen is fixed at a vertical position, so that the cam and the moment limiter are put into operation; the alarm trigger is fixed on the filter screen bracket and rotates along with the filter screen;
step two: when the filter screen is dirty, the torque of the filter screen acting on the filter screen support is increased, the cam on the filter screen support radially rotates along the shaft and moves relative to the roller, the transmission rod moves towards the axis direction to compress the spring of the moment limiter in the operation process, when the torque generated by the pressure difference of the filter screen is greater than the limit value of the moment limiter, the filter screen rotates 90 degrees, the filter screen at the working position originally standing under the water surface rotates to a decontamination position level with the water surface, the standby filter screen suspended in the water coming direction rotates to the working position standing under the water surface to continuously intercept marine organisms, and the working process above is repeated along with the accumulation of the marine organisms; the torque of the torque limiter can be adjusted by rotating the torque adjusting nut;
step three: when the filter screen rotates 90 degrees, the alarm receiver receives a signal once and sends the signal to the monitoring room, the monitoring room receives the signal 4 times when the alarm device rotates one circle, and the monitoring room monitors the amount of marine organism sundries according to the frequency of the signal.
The invention has the beneficial effects that:
the invention designs a monitoring device which is not influenced by water transparency and marine organism species, the device can float up and down along with sea water tide level, and the effect of the interception time of a filter screen of the device in water is ensured; the invention also has the following advantages:
1. all parts in the device, which are in contact with the seawater, are made of stainless steel or other materials which cannot be corroded by the seawater;
2. the whole alarm device floats above the water surface through the floating columns, so that the working effectiveness of the device under the condition of sea water tide level change can be ensured, including the effectiveness of an underwater working filter screen and the effectiveness of cleaning a water surface dirt filter screen;
3. the filter screen in the invention is arranged on the filter screen mesh support, can be disassembled and replaced, and provides conditions for selecting different filter screens according to the types of marine organisms in different water areas; after the filter screen is dirty, the differential pressure of the filter screen is increased, when the differential pressure reaches the limit value of the torque limiter, the filter screen rotates 90 degrees, the clean filter screen is put into use, and the limit value of the torque limiter can be adjusted according to the flow rate of the water body and the differential pressure of the filter screen;
4. after the filter screen of the underwater working surface is dirty, the underwater working surface is rotated by 90 degrees and leveled with water surface, the dirty objects are placed below the screen surface of the filter screen, and the dirty objects are separated from the filter screen under the action of gravity and water surface impact force, so that the self-cleaning function of the screen surface of the filter screen is realized;
5. the alarm trigger of the device can send an alarm signal to the monitoring room according to the rotation condition of the filter screen, and the monitoring room judges the quantity of marine organisms according to the frequency of the signal.
6. The device overcomes the technical defects that an underwater high-definition camera is influenced by water quality to observe the distance, a multi-beam sonar system is influenced by the size of individual marine organisms and the like, can realize real-time monitoring on different marine organisms, and has higher reliability in monitoring impurities such as the marine organisms.
Drawings
FIG. 1 is a schematic structural diagram of an alarm device for monitoring marine organism quantity at a water intake of a nuclear power plant, which is designed by the invention;
FIG. 2 is a right side view of the alarm device for monitoring marine organism quantity at the water intake of the nuclear power plant;
FIG. 3 is a schematic view of a torque limiter of the present invention.
Wherein: 1-floating column, 2-cross shaft, 3-filter screen bracket, 4-filter screen, 5-alarm trigger, 6-alarm receiver, 7-torque limiter, 8-torque adjusting nut, 9-torque limiter sleeve, 10-torque limiter spring, 11-transmission rod, 12-roller and 13-cam
Detailed Description
The invention will be further described with reference to the following figures and examples:
as shown in fig. 1 to 3, the device of the invention is used for monitoring the amount of marine biological impurities in an open channel, and is arranged in the open channel with flowing water, the marine biological impurities and the like are attached to a filter screen of a monitoring device along with the flowing water, the pressure difference of the filter screen is increased, when the torque is greater than the limit value of a torque limiter, the filter screen rotates by 90 degrees and sends a signal to a monitoring room, the dirty filter screen has a self-cleaning function, the four filter screens can work in turn, the monitoring room receives signals for 4 times when the monitoring device rotates for each circle, and workers can monitor the amount of the marine biological impurities according to the frequency of the signals.
All parts of the device in contact with water are made of stainless steel or other materials which cannot be corroded by seawater.
Example (b):
an alarm device for monitoring marine organism quantity at a water intake of a nuclear power plant comprises: the device comprises a floating column 1, a cross shaft 2, a filter screen bracket 3, a plurality of filter screens 4, a plurality of alarm triggers 5, an alarm receiver 6 and a moment limiter 7; the filter screen 4 is arranged on the filter screen bracket 3, the filter screen bracket 3 is arranged on the cross shaft 2 through a bearing, and the two ends of the cross shaft 2 are fixed with the floating columns 1; the alarm trigger 5 is arranged on the filter screen bracket 3, and the alarm receiver 6 and the moment limiter 7 are respectively arranged on the transverse shaft 2.
A cross shaft height adjuster is arranged on the floating column 1 to ensure that the distance between the cross shaft 2 and the sea water surface is adjustable; after the cross shaft height adjuster on the floating column 1 is adjusted and fixed, the water inlet depth of the filter screen 4 is always kept unchanged when the alarm device fluctuates along with the sea water tide level, the floating column 1 can be fixed on the sea through an anchor or an upright column, and the filter screen 4 is ensured to be vertical to the water flow direction so as to ensure the effectiveness of the interception of the filter screen.
The altitude controller on the post 1 floats can make 2 distances from the surface of water of this device bearing cross axle adjustable to when guaranteeing to rotate filter screen 4 to decontamination position, filter screen surface and water level are level, and the foul of filter screen interception breaks away from the filter screen under the effect of gravity and surface of water thrust, flows away along with the water, realizes the cleaning function of filter screen, finishes the back when altitude mixture control and fixes the regulator position.
The floating column 1 is used for supporting the weight of the alarm device; the material of superficial post 1 includes plastics or resistant sea water corrosion's metal, and the shape of superficial post 1 includes ship type or tapered, and the shape of superficial post 1 will guarantee that filter screen 4 is fixed steady in aqueous and can float from top to bottom along with the sea water's tide level, and filter screen 4 depth of entry remains unchanged all the time when alarm device fluctuates along with the sea water tide level promptly.
The whole transverse shaft 2 is of a rod-shaped structure; the number of the filter screens 4 is four; the strainer holder 3 includes: four filter screen sheet brackets, a plurality of stable circular rings and a plurality of cams 13; the filter screen mesh supports are arranged at intervals of 90 degrees in the circumferential direction of the stabilizing ring, and the filter screen 4 is divided into four filter screen working positions in the circumferential direction; the four filter screen mesh supports are fixedly connected through a plurality of stable circular rings; the filter screen 4 is detachably mounted on a filter screen mesh support, and the four cams 13 are in a group and mounted on a certain stable circular ring and used for being matched with one or more moment limiters 7; the mounting position of the cam 13 on each stable circular ring is matched with the position of the filter screen mesh support.
The torque limiter 7 includes: a torque adjusting nut 8, a torque limiter sleeve 9, a torque limiter spring 10, a transmission rod 11 and a roller 12; a torque limiter spring 10 is arranged in the torque limiter sleeve 9, and a torque adjusting nut 8 is arranged at the top of the torque limiter sleeve 9 and pressed at one end of the torque limiter spring 10; the other end of the moment limiter spring 10 is provided with a transmission rod 11; a roller 12 is arranged below the transmission rod 11; one end of the torque limiter 7, which is provided with a torque adjusting nut 8, is fixed on the transverse shaft 2 through a torque limiter sleeve 9, and a roller 12 and a cam 13 of the torque limiter 7; (ii) a When the filter screen is dirty, the torque applied to the filter screen bracket 3 by the filter screen 4 is increased, so that the cam 13 rotates along the axial radial direction and moves relative to the roller 12.
The number of the stable rings is 2-4; the number of the moment limiters 7 arranged on the transverse shaft 2 is matched with the area of the filter screen 4. Four filter screen operating position include: a filter screen working position, a filter screen decontamination position, a filter screen standby position and a filter screen secondary standby position; the working position of the filter screen is arranged below the water surface and is used for intercepting marine organisms; the decontamination position of the filter screen is flush with the seawater plane, so that the filter screen is cleaned; the standby filter screen position is suspended in the water inlet direction, and when the torque of the filter screen at the working position exceeds the limit value of the moment limiter 7, the standby filter screen position is shifted to the working position of the filter screen; the secondary standby position is simultaneously transferred to the filter screen standby position.
Every time the filter screen 4 rotates 90 degrees, the alarm receiver receives a signal and sends the signal to the monitoring room, and the monitoring room judges the quantity of marine organisms according to the frequency of the signal.
The filter screen type is selected according to aquatic impurity such as local sea area sea creature, includes: a fish net structure, a plane plate hollow structure, a corrugated plate hollow structure, a wedge-shaped pore plate structure or a combination of a plurality of net sheet structures;
the water resistance can be changed by changing the area or the type of the filter screen 4 in water areas with different seawater flow velocities; or the filter screen 4 is provided with a water-proof water bar to increase and decrease the water resistance of the filter screen so as to ensure that the filter screen 4 at the working position can be normally put into use.
The floating column 1 is used for supporting the weight of the alarm device; the material of superficial post 1 includes plastics or resistant sea water corrosion's metal, and the shape of superficial post 1 includes ship type or tapered, and the shape of superficial post 1 will guarantee that filter screen 4 is fixed steady in aqueous and can float from top to bottom along with the sea water's tide level, and filter screen 4 depth of entry remains unchanged all the time when alarm device fluctuates along with the sea water tide level promptly.
The monitoring method of the alarm device for monitoring the marine organism number at the water intake of the nuclear power plant comprises the following steps:
the method comprises the following steps: when the filter screen is installed and works in water, a certain water resistance exists on the filter screen under the action of water flow, the filter screen works in a vertical position by utilizing the torque generated by the action of the water resistance on the filter screen 4, so that the cam and the moment limiter work; the alarm trigger 5 is fixed on the filter screen bracket 3 and rotates along with the filter screen 4;
step two: when the filter screen is dirty, the torque of the filter screen 4 acting on the filter screen bracket 3 is increased, the cam 13 on the filter screen bracket 3 rotates along the axial radial direction and moves relative to the roller 12, the transmission rod 11 moves towards the axial center direction to compress the moment limiter spring 10 in the operation process, when the torque generated by the pressure difference of the filter screen is greater than the limit value of the moment limiter 7, the filter screen 4 rotates 90 degrees, the filter screen at the working position originally standing under the water surface rotates to a decontamination position aligned with the water surface, the filter screen at the standby position suspended in the water coming direction rotates to the working position standing under the water surface, the marine life is intercepted continuously, and the working process above is repeated along with the accumulation of the marine life; the torque of the torque limiter 7 can be adjusted by rotating the torque adjusting nut 8;
step three: when the filter screen 4 rotates 90 degrees, the alarm receiver 6 receives a signal and sends the signal to the monitoring room, the monitoring room receives the signal 4 times when the alarm device rotates one circle, and the monitoring room monitors the amount of marine organism sundries according to the frequency of the signal.
For improving monitoring alarm device's operational reliability, can set up multiunit monitoring alarm device in the water intaking open channel to carry out comprehensive monitoring to the open channel, monitoring alarm device need regularly patrol and examine in addition, and regularly use high-pressure squirt to wash the cleanness to the filter screen.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (10)
1. The utility model provides an alarm device of monitoring nuclear power plant intake marine life quantity which characterized in that includes: the device comprises a floating column (1), a transverse shaft (2), a filter screen bracket (3), a plurality of filter screens (4), a plurality of alarm triggers (5), an alarm receiver (6) and a moment limiter (7); the filter screen (4) is arranged on the filter screen bracket (3), the filter screen bracket (3) is arranged on the transverse shaft (2) through a bearing, and the two ends of the transverse shaft (2) are fixed with the floating columns (1); the alarm trigger (5) is arranged on the filter screen bracket (3), and the alarm receiver (6) and the moment limiter (7) are respectively arranged on the transverse shaft (2).
2. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 1, wherein: a cross shaft height adjuster is arranged on the floating column (1) to ensure that the distance between the cross shaft (2) and the sea water surface is adjustable; after the height adjuster of the cross shaft on the floating column (1) is adjusted and fixed, the water inlet depth of the filter screen (4) is always kept unchanged when the alarm device fluctuates along with the sea water tide level, the floating column (1) can be fixed on the sea through an anchor or an upright column, and the filter screen (4) is ensured to be vertical to the water flow direction.
3. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 2, wherein: the whole transverse shaft (2) is of a rod-shaped structure; the number of the filter screens (4) is four; the strainer holder (3) comprises: four filter screen sheet brackets, a plurality of stable circular rings and a plurality of cams (13); the filter screen mesh supports are arranged at intervals of 90 degrees in the circumferential direction of the stabilizing ring, and the filter screen (4) is divided into four filter screen working positions in the circumferential direction; the four filter screen mesh supports are fixedly connected through a plurality of stable circular rings; the filter screen (4) is detachably arranged on the filter screen mesh support; the four cams (13) are in a group, are arranged on a certain stable circular ring and are used for being matched with one or more moment limiters (7); the mounting position of the cam (13) on each stable circular ring is matched with the position of the filter screen mesh support.
4. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 3, wherein: the torque limiter (7) comprises: a torque adjusting nut (8), a torque limiter sleeve (9), a torque limiter spring (10), a transmission rod (11) and a roller (12); a torque limiter spring (10) is installed in the torque limiter sleeve (9), and a torque adjusting nut (8) is arranged at the top of the torque limiter sleeve (9) and pressed at one end of the torque limiter spring (10); the other end of the moment limiter spring (10) is provided with a transmission rod (11); a roller (12) is arranged below the transmission rod (11); one end of the torque limiter (7) provided with a torque adjusting nut (8) is fixed on the transverse shaft (2) through a torque limiter sleeve (9), and a roller (12) of the torque limiter (7) is in contact with a cam (13); when the filter screen is dirty, the torque of the filter screen (4) acting on the filter screen bracket (3) is increased, so that the cam (13) rotates along the axial radial direction and moves relative to the roller (12).
5. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 3, wherein: the number of the stable rings is 2-4; the number of the moment limiters (7) arranged on the transverse shaft (2) is matched with the area of the filter screen (4).
6. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 5, wherein: four filter screen operating position include: a filter screen working position, a filter screen decontamination position, a filter screen standby position and a filter screen secondary standby position; the working position of the filter screen is arranged below the water surface and is used for intercepting marine organisms; the decontamination position of the filter screen is flush with the seawater plane, so that the filter screen is cleaned; the standby filter screen position is suspended in the water inlet direction, and when the torque of the filter screen at the working position exceeds the limit value of the moment limiter (7), the standby filter screen position is shifted to the working position of the filter screen; the secondary standby position is simultaneously transferred to the filter screen standby position.
7. The alarm device for monitoring the marine organism number at the water intake of the nuclear power plant as claimed in claim 6, wherein: every time the filter screen (4) rotates 90 degrees, the alarm receiver receives a signal and sends the signal to the monitoring room, and the monitoring room judges the quantity of marine organisms according to the frequency of the signal.
8. The apparatus for monitoring the amount of marine life at a water intake of a nuclear power plant as claimed in claim 7, wherein the type of the filter screen is selected according to impurities in water such as marine life at a local sea area, comprising: a fish net structure, a plane plate hollow structure, a corrugated plate hollow structure, a wedge-shaped pore plate structure or a combination of a plurality of net sheet structures;
the water resistance can be changed by changing the area or the type of the filter screen (4) in water areas with different seawater flow velocities; or the filter screen (4) is provided with a water-proof water bar to increase and decrease the water resistance of the filter screen so as to ensure that the filter screen (4) at the working position can be normally put into use.
9. The warning device for monitoring the marine organism number at the intake of a nuclear power plant as claimed in claim 1, characterized in that the floating column (1) is used for supporting the weight of the warning device; the material of superficial post (1) includes plastics or resistant sea water corrosion's metal, and the shape of superficial post (1) includes ship type or tapered, and the shape of superficial post (1) will guarantee that filter screen (4) are fixed steadily can float from top to bottom along with the sea water's tide level in aqueous, and filter screen (4) depth of entry remains unchanged all the time when alarm device fluctuates along with the sea water tide level promptly.
10. A monitoring method of an alarm device for monitoring marine life amount at a water intake of a nuclear power plant as claimed in any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps: when the filter screen is installed and works in water, a certain water resistance exists on the filter screen under the action of water flow, the working position of the filter screen is fixed at a vertical position by utilizing the torque generated by the action of the water resistance on the filter screen (4), so that the cam and the torque limiter are put into operation; the alarm trigger (5) is fixed on the filter screen bracket (3) and rotates along with the filter screen (4);
step two: when the filter screen is dirty, the torque of the filter screen (4) acting on the filter screen bracket (3) is increased, a cam (13) on the filter screen bracket (3) rotates along the axial radial direction and moves relative to a roller (12), a transmission rod (11) moves towards the axial center direction to compress a moment limiter spring (10) in the operation process, when the torque generated by the differential pressure of the filter screen is greater than the limit value of a moment limiter (7), the filter screen (4) rotates 90 degrees, the filter screen at a working position originally standing under the water surface rotates to a decontamination position aligned with the water surface, a standby filter screen suspended in the water coming direction rotates to a working position standing under the water surface to continuously intercept marine organisms, and the working process above is repeated along with the accumulation of the marine organisms; the torque of the torque limiter (7) can be adjusted by rotating the torque adjusting nut (8);
step three: when the filter screen (4) rotates 90 degrees, the alarm receiver (6) receives a signal once, and sends the signal to the monitoring room, the monitoring room receives the signal 4 times when the alarm device rotates one circle, and the monitoring room monitors the amount of marine organism sundries according to the frequency of the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010471538.6A CN111599139A (en) | 2020-05-29 | 2020-05-29 | Alarm device and monitoring method for monitoring marine organism quantity at water intake of nuclear power plant |
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| CN202010471538.6A CN111599139A (en) | 2020-05-29 | 2020-05-29 | Alarm device and monitoring method for monitoring marine organism quantity at water intake of nuclear power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662033A (en) * | 2021-08-20 | 2021-11-19 | 浙江海洋大学 | High-efficient automatically cleaning production line is used in aquatic products processing |
| CN114631475A (en) * | 2022-05-05 | 2022-06-17 | 王斌 | Irrigation and pesticide spraying integrated farmland irrigation equipment |
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2020
- 2020-05-29 CN CN202010471538.6A patent/CN111599139A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662033A (en) * | 2021-08-20 | 2021-11-19 | 浙江海洋大学 | High-efficient automatically cleaning production line is used in aquatic products processing |
| CN113662033B (en) * | 2021-08-20 | 2022-12-02 | 浙江海洋大学 | High-efficient automatically cleaning production line is used in aquatic products processing |
| CN114631475A (en) * | 2022-05-05 | 2022-06-17 | 王斌 | Irrigation and pesticide spraying integrated farmland irrigation equipment |
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