CN115346702A - Method and system for solving fuel ball blockage of high-temperature gas cooled reactor nuclear power plant - Google Patents

Abstract

The invention discloses a method and a system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant. The method of the present invention includes the following steps: installing a vibrator at the position of the pipeline where fuel ball jamming is likely to occur; the remote controller judges the jamming position of the fuel ball according to the counting deviation of the counter; The vibrator at the blocking position can eliminate the blockage of fuel balls by controlling the vibration intensity of the vibrator. In the present invention, the vibrator installed on the fuel ball delivery pipeline is controlled by the remote controller installed in the non-radiation control area to eliminate the fuel ball jamming phenomenon, so that the staff can complete the fuel ball jamming phenomenon without being exposed to the radiation control area While improving the working efficiency, it also avoids the risk of workers being exposed to nuclear radiation.

Description

A method and system for solving fuel ball jamming in a high temperature gas-cooled reactor nuclear power plant

technical field

The invention relates to the technical field of high-temperature gas-cooled reactor fuel ball transmission, in particular to a method and system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant.

Background technique

At present, the nuclear fuel of high-temperature gas-cooled reactor nuclear power plants is fuel balls, and the fuel balls are transmitted in stainless steel pipes slightly larger than the diameter. During the transmission process, due to the small slope of some pipes and the presence of graphite debris, etc., fuel balls will be blocked. situation in the pipeline. At present, when the fuel balls get stuck in the pipeline, it is usually caused by artificially tapping the stainless steel pipe with a metal tool, causing the fuel ball and the stainless steel pipe to vibrate. After the vibration, the fuel ball will overcome the resistance and continue to be transported in the pipeline.

According to the current method for solving fuel ball jamming, the staff needs to find the location of the jamming point or the pipeline where the jamming occurs, and perform manual processing on site, and the manual work efficiency is low; in addition, due to the high Radioactive, and there are no very effective radiation protection measures at present, the staff will be exposed to high radioactive exposure when working on site, and there are certain potential safety hazards.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, the embodiments of the present invention provide a method and system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant.

On the one hand, the present invention proposes a method for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant, comprising the following steps:

(1) Install a vibrator at the pipeline position prone to fuel ball jamming;

(2) The remote controller judges the jamming position of the fuel ball according to the count deviation of the counter;

(3) When fuel ball jamming occurs, the vibrator at the fuel ball jamming position is turned on, and the fuel ball jamming is eliminated by controlling the vibration intensity of the vibrator.

In some embodiments, both the counter and the vibrator are electrically connected to the remote controller.

In some embodiments, an upstream counter and a downstream counter are arranged on both sides of the pipeline of each vibrator along the conveying direction of the fuel spheres.

In some embodiments, when the counts of the upstream counter and the downstream counter are consistent, there is no fuel ball jamming phenomenon; when there is a deviation in the counts of the upstream counter and the downstream counter, the fuel ball jamming phenomenon occurs .

In some embodiments, the remote controller includes a data processing unit, the data processing unit is used to process and analyze the data of the counter, and the remote controller indicates the card of the fuel ball according to the feedback information from the data processing unit blocked position.

In some embodiments, the position of the pipeline where fuel ball jamming is likely to occur is a position with a relatively large slope in the pipeline, a position where graphite debris is likely to accumulate, or a position where fuel ball jamming has occurred.

In some embodiments, the vibrator is a ring structure, and the vibrator is fixed by a clamp on a pipeline position where fuel ball jamming is likely to occur.

On the other hand, the present invention proposes a system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant, including:

A plurality of vibrators, the vibrators are fixedly arranged at the position of the pipeline where fuel ball jamming is likely to occur;

A plurality of counters, the counters are arranged on the upstream and downstream sides of each vibrator, and the jamming position of the fuel ball is judged according to the counting deviation of the counters;

a remote controller, both the vibrator and the counter are electrically connected to the remote controller;

power supply.

In some embodiments, the remote controller includes a data processing unit, and the data processing unit is electrically connected to the counter.

In some embodiments, the vibrator is a ring structure.

Compared with the prior art, the beneficial effects of the present invention are:

In the present invention, the vibrator installed on the fuel ball delivery pipeline is controlled by the remote controller installed in the non-radiation control area to eliminate the fuel ball jamming phenomenon, so that the staff can complete the fuel ball jamming phenomenon without being exposed to the radiation control area While improving the working efficiency, it also avoids the risk of workers being exposed to nuclear radiation.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is the schematic diagram of the installation position of vibrator and counter;

Figure 2 is a schematic diagram of a control box in some embodiments;

Explanation of reference signs:

Vibrator 1, upstream counter 2, downstream counter 3, fuel ball 4, control box 5, power supply 6.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The method and system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

The method for solving the plugging of fuel balls in a high-temperature gas-cooled reactor nuclear power plant of the present invention comprises the following steps:

(1) Install a vibrator at the pipeline position prone to fuel ball jamming;

(2) The remote controller judges the jamming position of the fuel ball according to the count deviation of the counter;

(3) When fuel ball jamming occurs, turn on the vibrator at the jammed position of the fuel ball, and eliminate the fuel ball jamming by controlling the vibration intensity and vibration time of the vibrator.

In step (1), the pipeline position prone to fuel ball jamming refers to the position in the pipeline with a large slope, the position where graphite debris is easy to accumulate, or the position where jamming has occurred in experience. Wherein, the position with a larger slope refers to the position where the fuel ball delivery slope is greater than 45°.

In the fuel ball delivery pipeline, there are many positions where fuel ball jamming is likely to occur, therefore, multiple vibrators 1 are arranged on the fuel ball delivery pipeline.

In some embodiments, the vibrator 1 has a ring structure, and is fixed at a position where fuel ball jamming is likely to occur through a clamp.

The counters are arranged on both sides of the vibrator 1 , specifically, along the direction of conveying the fuel balls, an upstream counter 2 and a downstream counter 3 are arranged on both sides of the pipeline of each vibrator 1 .

It can be understood that the upstream counter 2 is used to record the quantity of fuel spheres flowing through the pipeline upstream of the vibrator 1 , and the downstream counter 3 is used to record the quantity of fuel spheres flowing through the pipeline downstream of the vibrator 1 . When the counts of the upstream counter 2 and the downstream counter 3 are consistent, it means that there is no fuel ball jamming at the position of the vibrator 1, and there is no need to start the vibrator 1 at this position; when the upstream counter 2 and the downstream counter 3 When there is a deviation in the counting, it means that the fuel ball jamming phenomenon occurs at the position of the vibrator 1. At this time, the vibrator 1 at the position needs to be started to eliminate the fuel ball jamming phenomenon so that the fuel ball 4 can pass through the position smoothly.

Both the counter and the vibrator 1 are electrically connected with the remote controller. The vibrator 1 is electrically connected to the remote controller so that the vibrator 1 can be remotely controlled to start and stop, avoiding close contact with the vibrator 1 at the radiation control area. The counter is electrically connected with the remote controller, so that the remote controller can judge the position where the fuel ball is blocked according to the data of the counter. It can be understood that the counter at each vibrator position is in one-to-one correspondence with the vibrator position.

The remote controller includes a data processing unit, which is used to process and analyze the data of the counter, and the remote controller indicates the stuck position of the fuel ball according to the feedback information from the data processing unit.

Specifically, the counter is electrically connected to the data processing unit of the remote controller, and the counter transmits the count value of the fuel balls passing through the upstream and downstream pipelines of the vibrator 1 to the data processing unit, and the data processing unit performs an operation on the upstream counter 2 and the upstream counter 2 of a certain vibrator 1. The data of the downstream counter 3 is analyzed and compared, and the results of the comparison and analysis are fed back to the remote controller. The remote controller indicates whether the fuel ball is blocked and the position of the fuel ball according to the feedback information from the data processing unit. When the data of the upstream counter 2 and the downstream counter 3 are consistent, the remote controller indicates that there is no jamming phenomenon at this position according to the feedback information of the data processing unit. When the data of the upstream counter 2 and the downstream counter 3 deviate, the remote controller According to the feedback information from the data processing unit, it is indicated that the jamming phenomenon occurs at the position.

When the remote controller indicates that the jamming phenomenon occurs at this position according to the feedback information of the data processing unit, the remote controller controls the vibrator 1 at the position to open to eliminate the fuel ball jamming phenomenon. After the vibrator 1 works for a period of time, when the data The processing unit monitors that the data of the upstream counter 2 and the downstream counter 3 are consistent, the jamming phenomenon is eliminated, and the remote controller controls the vibrator 1 to stop the vibration. During the vibrating process of the vibrator 1, the staff adjusts the vibration intensity of the vibrator 1 according to specific conditions to eliminate the fuel ball jamming phenomenon as soon as possible.

In addition, the location of the delivery pipeline of the fuel balls belongs to the radiation control area, that is, the vibrator 1 and the counter are both set in the radiation control area, and the remote control area is set in the non-radiation control area. This setting makes it possible for the staff not to be exposed to the radiation control area. Completed the treatment of the fuel ball jamming phenomenon, while improving the operation efficiency, it avoided the risk of the staff being exposed to nuclear radiation.

The system for solving fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant of the present invention is used to implement the method for solving the fuel ball jamming in a high-temperature gas-cooled reactor nuclear power plant of the present invention, including a vibrator 1, a counter, a remote controller and a power supply 6 .

Referring to FIG. 1 , the fuel ball 4 moves in the fuel ball conveying pipeline, and the vibrator 1 is arranged at a position in the pipeline where fuel ball jamming is likely to occur. It can be understood that there are multiple pipeline positions where fuel ball jamming is likely to occur in the delivery pipeline of the fuel ball 4. Therefore, multiple vibrators 1 are arranged on the delivery pipeline of the fuel sphere. When a certain vibrator 1 position When the fuel ball jamming phenomenon occurs, start the vibrator 1 corresponding to the position to eliminate the fuel ball jamming phenomenon and ensure the delivery of the fuel ball.

In some embodiments, the vibrator 1 has a ring structure. The ring-shaped vibrator 1 is fixed on the fuel ball delivery pipeline. When the vibrator 1 is activated, the fuel ball delivery pipeline can be vibrated in multiple directions to eliminate jamming as soon as possible.

In some embodiments, the vibrator 1 is fixed on the fuel ball delivery pipeline through a clamp.

Counters are arranged on both upstream and downstream sides of each vibrator 1, and the jamming position of the fuel ball is judged according to the counting deviation of the counter.

When the counts of the upstream counter 2 and the downstream counter 3 are consistent, it means that there is no fuel ball jamming at the position of the vibrator 1 arranged between the upstream counter 2 and the downstream counter 3, and there is no need to start the vibration at this position at this time When there is a deviation in the counting of the upstream counter 2 and the downstream counter 3, it means that the fuel ball is stuck at the position of the vibrator 1 set between the upstream counter 2 and the downstream counter 3, and it is necessary to start the position at this time The vibrator 1 is used to eliminate the jamming phenomenon of the fuel ball so that the fuel ball can pass through the position smoothly.

Both the vibrator 1 and the counter are electrically connected to the remote controller, the remote controller includes a data processing unit, and the data processing unit is electrically connected to the counter.

The vibrator 1 is electrically connected to the remote controller so that the vibrator 1 can be remotely controlled to start and stop, and the remote controller indicates whether there is a jamming phenomenon at the position according to the feedback information from the data processing unit. Specifically, the counter transmits the data value to the data processing unit, and the data processing unit analyzes and compares the data of the upstream counter 2 and the downstream counter 3, and feeds back the comparative analysis result to the remote controller, when the upstream counter 2 and the downstream counter 3 When the data is consistent, the remote controller indicates that there is no jamming phenomenon at this position according to the feedback information of the data processing unit. When the data of the upstream counter 2 and the downstream counter 3 deviate, the remote controller indicates the position The location is jammed.

When the remote controller indicates that the jamming phenomenon occurs at this position according to the feedback information of the data processing unit, the remote controller controls the vibrator 1 at the position to open to eliminate the fuel ball jamming phenomenon. After the vibrator 1 works for a period of time, when the data When the processing unit monitors that the data of the upstream counter 2 and the downstream counter 3 are consistent, it means that the fuel ball jamming phenomenon is eliminated, and the remote controller controls the vibrator 1 to stop the vibration. During the vibrating process of the vibrator 1, the staff adjusts the vibration intensity of the vibrator 1 according to specific conditions to eliminate the fuel ball jamming phenomenon as soon as possible.

Referring to Fig. 2, the power supply 6 is introduced into the control box 5 through the power cord to provide electric energy for the vibrator 1 and the control box 5, and the remote controller is arranged in the control box 5. There are intensity selection buttons on the control box 5, which are respectively "weak", "medium" and "strong". During the working process of the vibrator 1, the staff selects or adjusts the vibration intensity of the vibrator 1 according to the actual situation. Specifically, after the vibrator 1 has been working for a period of time, the jamming phenomenon has not been eliminated. At this time, the vibration intensity of the vibrator 1 can be increased to eliminate the fuel ball jamming phenomenon as soon as possible.

The control box 5 is also provided with "Start" and "Stop" buttons showing the working state of the vibrator 1. It can be understood that when the "start" button light is on, it indicates that at least one vibrator 1 is in working condition, and there is a phenomenon of fuel ball jamming; when the "stop" button light is on, it indicates that the vibrator 1 is in working condition In the closed state, there is no fuel ball jamming at this time.

The control box 5 is also provided with "running" and "stop" buttons showing the working state of the remote controller. It can be understood that, when the light of the display "run" button is on, it indicates that the remote controller is in working state; when the light of the display "stop" button is on, it indicates that the remote controller is in an offline state.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms may refer to different embodiments or examples. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A method for solving the problem of fuel ball blockage of a high-temperature gas cooled reactor nuclear power plant is characterized by comprising the following steps:

(1) Installing a vibrator at the position of the pipeline where the fuel ball is easy to block;

(2) The remote controller judges the blocking position of the fuel ball according to the counting deviation of the counter;

(3) When the fuel ball is blocked, the vibrator at the blocking position of the fuel ball is opened, and the blocking of the fuel ball is eliminated by controlling the vibration intensity of the vibrator.

2. The method of claim 1, wherein the counter and the vibrator are both electrically connected to the remote controller.

3. The method of claim 1, wherein an upstream counter and a downstream counter are provided on both sides of the conduit of each said vibrator in the fuel ball delivery direction.

4. The method of claim 3, wherein when the counts of the upstream counter and the downstream counter are consistent, there is no fuel ball blockage; when the counting of the upstream counter and the counting of the downstream counter have deviation, the phenomenon of fuel ball blockage occurs.

5. The method of claim 1, wherein the remote controller comprises a data processing unit for processing and analyzing the data of the counter, the remote controller indicating a stuck position of the fuel ball based on feedback information of the data processing unit.

6. The method of claim 1, wherein the location of the pipeline at which the fuel ball blockage is likely to occur is a location with a greater slope within the pipeline, a location at which graphite debris is likely to accumulate, or a location at which the fuel ball blockage has occurred.

7. The method of claim 1, wherein the vibrator is of annular configuration and is secured by a clip to the location of the conduit where the fuel ball jam is likely to occur.

8. A system for solving fuel ball blockage in a high temperature gas cooled reactor nuclear power plant, for carrying out the method of any one of claims 1 to 7, comprising:

the vibrators are fixedly arranged at the positions of pipelines which are easy to block fuel balls;

the counter is arranged on the upstream side and the downstream side of each vibrator, and the blocking position of the fuel ball is judged according to the counting deviation of the counter;

the vibrator and the counter are electrically connected with the remote controller;

a power source.

9. The system of claim 8, wherein the remote controller comprises a data processing unit, the data processing unit being electrically connected to the counter.

10. The system of claim 8, wherein the vibrator is a ring-shaped structure.

Images